Glossary, Acronyms, and Abbreviations - IIUSA

<strong>Glossary</strong>,<br />

<strong>Acronyms</strong>, <strong>and</strong><br />

<strong>Abbreviations</strong><br />

Prepared by: <strong>IIUSA</strong>, http://iiusa.cc<br />

The terms used here are seen in numerous 11th<br />

Signal Brigade Thunderbird university courses.<br />

Format:<br />

Term – Definition (Application area)<br />

Example:<br />

SEN – Small Extension Node<br />

Sources:<br />

(1) 9th Army Signal Comm<strong>and</strong> IDNX/Training Support<br />

Package 009<br />

(2) http://www.telos-systems.com/techtalk/gldefs.htm<br />

(3) TCP/IP Illustrated, vol. 1, W. Richard Stevens,<br />

Addison-Wesley, (1994)<br />

(4) CECOM Support CD 2003 Release 2, SSIMP-LR<br />

Acronym List<br />

(5) Army field manual FM 11-43 "The Signal Leader's<br />

Guide", http://www.adtdl.army.mil/cgibin/atdl.dll/fm/11-43/11-43glo.htm<br />

(6) Army field manual FM 11-55 "Mobile Subscriber<br />

Equipment (MSE) Operations",<br />

http://www.adtdl.army.mil/cgi-bin/atdl.dll/fm/11-<br />

55/gloss.htm<br />

(7) "Manual for Employing Joint Tactical<br />

Communications", Enclosure GL - <strong>Glossary</strong>, CJCSM<br />

6231.07C, 1 August 2001.<br />

(9) Compilation of the AFCEA International Press <strong>and</strong><br />

SIGNAL Magazine,<br />

http://www.us.net/signal/<strong>Acronyms</strong>/<br />

(8) 11th Signal Brigade Thunderbird University staff <strong>and</strong><br />

contractors<br />

Page 1 of 106

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# - number<br />

@ - at<br />

Numerics<br />

24th - Channel Signaling - The use of the 24th channel on a DS1/DTI<br />

board to carry multiplexed per-channel signals from the other 23<br />

channels. This allows the other channels to be clear channels for 64<br />

kbps data transmission, <strong>and</strong> to be used as AVD (alternate<br />

voice/data) channels. Also see clear channel.<br />

2W - two-wire<br />

2WLTU - two-wire line termination unit<br />

4-Wire - E&M - A form of E & M signaling primarily used on trunks<br />

interfacing PBX to PBX or PBX to Central Office, which uses<br />

separate pairs of wires (up to four pair) for transmission <strong>and</strong><br />

signaling functions. On- <strong>and</strong> off-hook signaling functions are<br />

accomplished through the E&M signaling leads.<br />

4W - four-wire<br />

4WLTU - four-wire line termination unit<br />

56K - Trunk Module - This module operates at 56 kbps <strong>and</strong> can be<br />

used as a backup to a T1 trunk for critical circuits, as a temporary<br />

trunk while T1 facilities are installed, as a supplemental trunk to a<br />

T1 trunk, or as a subrate trunk to a lower-capacity node not<br />

requiring full T1 b<strong>and</strong>width. No routing attribute is available that<br />

allows circuits to be biased to the 56K trunk. Circuits are routed<br />

over a 56K trunk when T1 b<strong>and</strong>width is unavailable in order of<br />

priority.<br />

64K - Trunk Module - The 64K trunk module consists of a 64K TRK<br />

front card <strong>and</strong> a 56K trunk interface card without a V.35 electrical<br />

connector, or a 64K X.21 trunk interface card with a 15-pin X.21<br />

connector. The module operates at 64 kbps, with 48K of trunk<br />

b<strong>and</strong>width. Neither the 56K or the 64K trunk module will<br />

accommodate 24 kbps ADPCM voice calls.<br />

@ - at<br />

A<br />

A-6 - Air Force Director of Communications<br />

A - alarm<br />

A-Law - A-law is the comp<strong>and</strong>ing st<strong>and</strong>ard used in the analog-todigital<br />

conversion process (<strong>and</strong> vice-versa) in PCM systems,<br />

European telephone networks.<br />

A&MD - air <strong>and</strong> missile defense<br />

A/B-Bit - Signaling - A procedure used in most T1 transmission<br />

facilities in which one bit stolen from every sixth <strong>and</strong> twelfth frame<br />

of the 24 time slots is used to carry dial <strong>and</strong> control information.<br />

The control bit in the first six frames is called the A-bit, <strong>and</strong> the<br />

control bit in the second six frames is the B-bit.<br />

A/D - analog-to-digital<br />

A/G - air to ground<br />

A/L - administrative/logistics<br />

A2C2S - Army Aviator (Airborne) comm<strong>and</strong> <strong>and</strong> control system<br />

aa - device address<br />

AA - auto answer<br />

AAA - assign alternate area<br />

AAA - assign alternate routing<br />

AAB - all-to-all broadcast<br />

AABNCP - advance airborne comm<strong>and</strong> post<br />

AACA - Army airlift clearance authority<br />

AACG - arrival airfield control group<br />

AACOMS - Army area communications system<br />

AACS - asynchronous address communications systems<br />

AADC - Area Air Defense Comm<strong>and</strong>er<br />

AADCOM - Army Air Defense Comm<strong>and</strong><br />

AADEOS - advanced air defense electro optical sensor (system)<br />

AADPS - algorithmic architecture data processing subsystem<br />

AADSACS - Army air defense Surveillance <strong>and</strong> control system<br />

AAE - Army acquisition executive<br />

AAE - automatic adaptive equalization<br />

AAFIP - Automated air facilities information file<br />

AAGS - Army air-ground system<br />

AAIC - active addressing integrated circuits<br />

AAIRS - airport/air carrier information reporting system<br />

AAL - assign affiliation lists<br />

AAL - account access layer<br />

AAL - assign affiliation lists<br />

AAL - (ATM adaptation layer) - The st<strong>and</strong>ards layer that allows<br />

multiple applications to have data converted to <strong>and</strong> from ATM<br />

cells. A protocol that translates higher layer services into the size<br />

<strong>and</strong> format of ATM cells.<br />

AAL-5 - (ATM adaptation layer type 5) - AAL functions in support of<br />

variable bit rate, delay-tolerant connection-oriented data traffic<br />

requiring minimal sequencing or error detection support.<br />

AALCD - active addressing liquid crystal display<br />

AALPS - automated airload planning system<br />

AAMA - area airspace management authority<br />

AAMDC - Army Air Missile Defense Comm<strong>and</strong><br />

AAMMS - Army automated multi-media system<br />

AAMPS - automated aircraft mission planning system<br />

AAMT - Army ACTS mobile terminal<br />

AAP - automatic asset placement<br />

AAPPES - Army automation planning, programming, <strong>and</strong> evaluation<br />

system<br />

AAR - after action review<br />

AAR - air-to-air receive<br />

AAR - automatic adaptive (alternative) routing<br />

AARS - advanced airborne (aerial) radar system<br />

AARS - advanced airborne radiac system<br />

AAS - advanced automation system (FAA)<br />

AAS - all-to-all scatter<br />

AASC - Army area signal center<br />

AASP - ASCII asynchronous support package<br />

AASR - advanced airborne surveillance radar<br />

AAT - automatic analog test<br />

AAT - average access time<br />

Page 2 of 106

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AATR - air-to-air transmit/receive<br />

AAU - analog applique unit<br />

AAVS - aerospace audiovisual system<br />

AAWC - anti-air warfare comm<strong>and</strong>er (Navy)<br />

AAWCS - anti-air warfare combat system<br />

AAWWS - airborne adverse weather weapons system<br />

AB - Ada based<br />

AB - address bus<br />

AB - answer back<br />

ABC - activity based costing<br />

ABC - analog backup computer<br />

ABC - automatic bar code<br />

ABC - (Absolute Bus Cycle) - Unit of interface relative to the start of<br />

the TBus frame. Contrast with relative bus cycle (RBC).<br />

ABCC - airborne battlefield comm<strong>and</strong> <strong>and</strong> control center<br />

ABCC - airborne communications center<br />

ABCS - Army battle comm<strong>and</strong> system<br />

ABCS - Army Battlefield Control System<br />

ABD - assign bypass <strong>and</strong> duplication<br />

ABD - Ada based document<br />

ABD - assign bypass <strong>and</strong> duplication transfer<br />

ABDDD - Ada based development design document<br />

ABDT - answer back-day <strong>and</strong> time<br />

ABFC - advanced base functional component system<br />

ABI - application binary interface<br />

ABI - Ada binding interface<br />

ABIC - Army battlefield interface concept<br />

ABIS - advanced battlespace information system<br />

ABIT - airborne information transmission system (USAF)<br />

ABIT - automatic built-in test<br />

ABL - assign blacklist deletion<br />

ABM - asynchronous balanced mode<br />

ABM - air battle manager<br />

ABMOC - air battle management operation center<br />

ABN - airborne<br />

ABNCC - airborne comm<strong>and</strong> <strong>and</strong> control<br />

ABNCP - airborne comm<strong>and</strong> post<br />

ABNOC - ABN operations center<br />

ABPDD - Ada based product design document<br />

ABR - assign bypass reception<br />

ABR - airborne relay<br />

ABR - available bit rate<br />

ABR - assign bypass reception<br />

ABS - advanced battle simulations<br />

ABSM - answer back service message<br />

ABT - assign bulk transfer<br />

ac - alternating current<br />

AC - area code<br />

Page 3 of 106<br />

AC - armament computer<br />

AC2MP - Army comm<strong>and</strong> & control master plan<br />

ACA - acquisition capability assessment<br />

ACA - air control authority<br />

ACA - Australian Communications Authority<br />

ACA - automatic circuit assurance<br />

ACA - automatic conference arranger<br />

ACACS - Army comm<strong>and</strong> <strong>and</strong> area communications system<br />

ACALS - Army computer aided logistics system<br />

ACARS - aircraft communications addressing <strong>and</strong> reporting system<br />

(FAA)<br />

ACAS - Army commissary automated system<br />

ACC - area control center<br />

ACC - accumulator<br />

ACC - air combat comm<strong>and</strong> (Air Force)<br />

ACC - air control center<br />

ACC - BLACKER access controller<br />

ACC - Army Communications Comm<strong>and</strong><br />

ACC - automated carrier control<br />

ACCAT - advanced comm<strong>and</strong> <strong>and</strong> control architectural testbed<br />

ACCF - Area communications control facility<br />

ACCIS - Army comm<strong>and</strong> <strong>and</strong> control information system<br />

ACCN - Army comm<strong>and</strong> <strong>and</strong> control network<br />

ACCOR - Army COMSEC central office of record<br />

ACCS - air comm<strong>and</strong> <strong>and</strong> control system (NATO)<br />

ACCS - Army comm<strong>and</strong> <strong>and</strong> control system<br />

ACCSA - Allied Communications <strong>and</strong> Computer Security Agency<br />

(NATO)<br />

ACCSDP - Army C&C development plan<br />

ACD - automatic (automated) call distribution (distributor)<br />

ACDI - asynchronous communications device interface<br />

ACDS - advanced combat direction System<br />

ACE - air combat element<br />

ACE - adaptive communications element (USAF)<br />

ACE - airborne (adaptive) comm<strong>and</strong> element (USAF)<br />

ACE - air combat element (NATO)<br />

ACE - automated commercial environment (Customs)<br />

ACE - aviation combat element (USMC)<br />

ACEC - Ada compiler evaluation capability<br />

ACERT - Army computer emergency response team<br />

ACES - automated communications engineering software<br />

ACES - access certificates for electronic services<br />

ACES - air combat engagement simulator<br />

ACES - automated comm<strong>and</strong> <strong>and</strong> control evaluation system<br />

ACES - automated communications engineering software<br />

ACES - automated computer examination system (FBI)<br />

ACF - access control facility (field)<br />

ACF - access coordination fee

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ACF - advanced communications function<br />

ACI - adjacent channel interference<br />

ACI - assign call inhibit<br />

ACIC - Aeronautical Chart <strong>and</strong> Information Center<br />

ACID - adaptive COMSEC interface device<br />

ACID - all-service combat identification demonstration<br />

ACIM - airborne communications interface module<br />

ACIND - air customer information needs database<br />

ACINT - acoustic intelligence<br />

ACIPS - acoustic intelligence processing system<br />

ACIS - American committee for interoperable systems<br />

ACIS - Army comm<strong>and</strong> information system<br />

ACIS - Automated combat information system<br />

ACK - acknowledgement flag, TCP header<br />

ACK - (Acknowledgment) - Control code or designation for a positive<br />

acknowledgment; sent from a receiver to the transmitter to<br />

indicate that a transmission or sequence of transmissions has<br />

been received correctly.<br />

ACL - access control list<br />

ACLDB - Army central logistics data Bank<br />

ACLI - Ada comm<strong>and</strong> language interpretation<br />

ACM - Association for Computing Machinery<br />

ACME - Adaptive Collection management environment<br />

ACMES - automated communications security management <strong>and</strong><br />

engineering system<br />

ACMES - Automated COMSEC Management <strong>and</strong> Engineering<br />

System<br />

ACMS - application control management system<br />

ACO - airspace control order<br />

ACO - Army cryptologic operations<br />

ACOC - area communications operations center<br />

ACOE - Army common operating environment<br />

ACOMMS - air communications squadron<br />

ACP - Allied Communications Publication<br />

ACP - ancillary control program<br />

ACP - air campaign planning tool<br />

ACP - automated comm<strong>and</strong> post<br />

ACP - assign common-pool compressed dial list<br />

ACPI - advanced configuration <strong>and</strong> power interface<br />

ACPU - auxiliary computer power unit<br />

ACQW - asymmetric coupled quantum well<br />

ACR - access control register<br />

ACR - alternate carrier routing (NCS)<br />

ACR - assign channel reassignment<br />

ACR - armored cavalry regiment<br />

ACRC - alternate control reporting center<br />

ACS - AUTODIN Switching Center<br />

ACS - access control system<br />

ACS - adaptive control system<br />

Page 4 of 106<br />

ACS - aerial common sensor<br />

ACS - afloat correlation system<br />

ACS - automated commercial system (Customs)<br />

ACSA - Allied Communications Security Agency<br />

ACSIM - assistant chief of staff for information management<br />

ACSO - assistant corps Signal officer<br />

ACSU - advanced channel service unit<br />

ACT - annual change traffic<br />

ACTA - America’s Carriers Telecommunication Association<br />

ACTD - advanced concept technology demonstration<br />

ACTFAST - advanced concepts <strong>and</strong> technology rrequency agile<br />

solid state tuner<br />

Action - Menu - The Operator Interface Action Menu contains the<br />

actions that can be performed. Each action is typically associated<br />

with a list of objects (Object Menu) on which the action is<br />

performed.<br />

ACTO - Army Communicative Technology Office<br />

ACTS - advanced communications technology satellite<br />

ACTS - advanced communications technologies <strong>and</strong> services<br />

(Europe) (was RACE)<br />

ACU - antenna control unit<br />

ACU - auto call (calling) unit<br />

ACUS - Area Common User System<br />

ACVC - Ada compiler validation capability (capacity)<br />

ACWAR - agile continuous wave acquisition radar<br />

ADA - air defense artillery<br />

ADA - airborne data automation<br />

ADACS - air defense artillery control system<br />

ADAMS - allied deployment <strong>and</strong> movement system<br />

ADANS - airlift deployment analysis system<br />

ADAPT - architectures design, analysis <strong>and</strong> planning tool<br />

ADAR - air defense radar<br />

ADARS - advanced defense avionics response strategy (USAF)<br />

ADARS - adaptive antenna receive system<br />

ADAS - airborne data automation system<br />

ADATS - Army development <strong>and</strong> acquisition of threat simulators<br />

ADB - assign data base transfer<br />

ADC - adaptive data compression<br />

ADC - analog to digital converter<br />

ADC - asynchronous data communications<br />

ADC - automatic data controller<br />

ADCC - air defense control center<br />

ADCCP - advanced data communications control procedures<br />

ADCEO - Assistant Division Communications-Electronics Office<br />

ADCP - air defense communications platform (USMC)<br />

ADCS - advanced defense communications satellite<br />

ADCS - air defense control system<br />

ADCS - automated document conversion system<br />

ADDISS - advanced deployable digital imagery support system

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ADDM - asynchronous digital data modem<br />

Address - Digital information (a combination of bits) that identifies<br />

the location of a terminal, peripheral device, a node, or any other<br />

unit or component in a network. Used mainly for routing purposes;<br />

in telephony the number entered by the caller that identifies the<br />

party called.<br />

Address - Packet - The address packet is a call setup-signaling<br />

packet that carries the call setup information. It is transmitted in<br />

accordance with the st<strong>and</strong>ards in CCITT Signaling System<br />

Number 7. The Call Controller task at each node sets up call<br />

resources based on information in the address packet.<br />

Address - Signals - Signals used to convey call destination<br />

information, such as telephone station code, central office code,<br />

<strong>and</strong> area code. Some forms of address signals are call pulses (for<br />

example, dial or multifrequency pulses).<br />

ADDS - air deployable delivery system (Navy)<br />

ADDS - Army data distribution (dictionary) system<br />

ADE - Army data encyclopedia<br />

ADE - advanced development environment<br />

ADE - assign digit editing lists<br />

ADE - Assign Digit Editing List Comm<strong>and</strong><br />

ADEIE - associated digital error improvement equipment<br />

ADEPT - acquisition of desktop extended processing technology<br />

(USPS)<br />

ADEWS - air defense electronic warfare system<br />

ADF - application dependent format<br />

ADF - automatic direction finder<br />

ADF - automatic document feed<br />

ADGE - air defense ground environment<br />

ADH - automatic data h<strong>and</strong>ling<br />

ADI - Air Defense Interface<br />

ADIMSS - Automated DSN Integrated Management Support System<br />

ADIMSS - Automated DSN Integrated Management Support System<br />

ADIMSS - Advanced DSN Integrated Management Support System<br />

ADIS - automated distributed intelligence system<br />

ADIZ - air defense identification sone<br />

adj - adjacent<br />

ADL - Ada design language<br />

ADL - address data latch<br />

ADL - advanced distributed learning<br />

ADL - automatic data link<br />

ADLAT - adaptive lattice filter<br />

ADM - advanced development model<br />

ADM - automatic display mode<br />

ADM - Admin<br />

ADMAPS - automated document management <strong>and</strong> publishing<br />

system<br />

ADMD - administrative management domain [X.400]<br />

admin - administrative<br />

ADMP - Army digitization master plan<br />

ADMS - automated digital multiplexing system<br />

ADN - area distribution node<br />

Page 5 of 106<br />

ADN - automatic digital network<br />

ADNET - anti-drug network<br />

ADNS - Automatic Data Networking System<br />

ADNX - Adaptive Digital Network Exchange<br />

ADO - Army digitization office<br />

ADOCU - air defense orderwire control unit<br />

ADP - automated data processing<br />

ADP - atmospheric downstream plasma etching<br />

ADPCM - (Adaptive Differential Pulse Code Modulation) - ADPCM<br />

takes advantage of the high statistical correlation between<br />

consecutive voice samples to create a variable (or adaptive)<br />

quantizing scale.<br />

ADPE - automated data processing equipment<br />

ADPR - automated data processing resources<br />

ADPSSO - automatic data processing special security officer<br />

ADR - automatic data relay<br />

ADRG - advanced research center<br />

ADRG - automatic digital raster graphics<br />

ADRG - ARC-Digitized Raster Graphics (ARC is a term used to<br />

designate linear features on a digital map.)<br />

ADRS - address<br />

ADS - Ada development system<br />

ADS - advanced digital switch<br />

ADS - advanced display system (Navy)<br />

ADS - advanced distributed simulations<br />

ADS - air data system<br />

ADS - application development system<br />

ADS-B - automatic dependent surveillance-broadcast<br />

ADSI - air defense system integrator<br />

ADSIA - Allied Data Systems Interoperability Agency<br />

ADSIM - air defense simulation<br />

ADSL - asymmetric DSL<br />

ADSL - asynchronous (asymmetrical) digital subscriber line (loop)<br />

ADSO - assistant division signal office/officer<br />

ADSS - Army decision support system<br />

ADST - advanced distributed simulation technology (Army)<br />

ADT - assign digital transmission group<br />

ADT - automatic digital tester<br />

ADT - abstract data type<br />

ADTOC - air defense tactical operations center<br />

ADTP - advanced technology demonstration plan<br />

ADU - automatic dialing unit<br />

ADU - assign PS dialup<br />

ADUA - administrative directory user agent<br />

ADX - automatic data exchange<br />

ADX - assign digit translation<br />

AE - attenuation equalizer<br />

AEA - airborne electronic attack (Navy)<br />

AEA - American Electronics Association

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AEELS - automatic ELINT emitter location system<br />

AEF - Air Expeditionary Force<br />

AEGADS - Army Electronic Generation <strong>and</strong> Distribution System<br />

AEHF - advanced extremely high frequency (satellite)<br />

AEI - Assign Equipment In/Out-of-Service Comm<strong>and</strong><br />

AEJ - Apache escort jammer<br />

AEP - application environment profile<br />

AES - advanced encryption st<strong>and</strong>ard<br />

AESA - active electronically scanned array<br />

AESOP - airborne electro-optical special operations payload<br />

AEW - airborne early warning<br />

AEW - Air Expeditionary Wing<br />

AEWIC - Army Electronic Warfare <strong>and</strong> Intelligence Committee<br />

AF - Air Force<br />

AF - audio frequency<br />

AFA - audio frequency amplifier<br />

AFAITC - Armed Forces Air Intelligence Training Center<br />

AFAMS - Air Force Agency for Modeling <strong>and</strong> Simulation<br />

AFATDS - Advanced Field Artillery Tactical Data System<br />

AFB - Air Force Base<br />

AFC - automatic frequency control<br />

AFC - area frequency coordinator<br />

AFC - automatic font change<br />

AFC - automatic frequency control<br />

AFC2S - Air Force comm<strong>and</strong> <strong>and</strong> control systems<br />

AFCA - Air Force Communications Agency (Formerly AFCC)<br />

AFCERT - Air Force computer emergency response team<br />

AFCH - Air Force Component Headquarters<br />

AFCSC - Air Force Cryptologic Support Center<br />

AFD - assign fixed-directory routing<br />

AFDIGS - Air Force digital graphics system<br />

AFDIS - air force dial in system<br />

AFECO - Air Force Electronic Combat Office<br />

AFEKMS - Air Force electronic key management system<br />

AFEWES - Air Force electronic warfare environment simulator<br />

AFFIRM - Association for Federal Information Resources<br />

Management<br />

AFFOR - Air Force forces<br />

AFIAA - Air Force Intelligence Analysis Agency<br />

AFID - anti-fratricide identification device<br />

AFII - Association for Font Information Interchange<br />

AFIN - Air Force information network<br />

AFIN - Air Force intelligence<br />

AFINTNET - Air Force intelligence network<br />

AFIPS - Air Force information publishing service<br />

AFIS - automated fingerprinting identification system (FBI)<br />

AFIWC - Air Force Information Warfare Center<br />

AFLANT - Air Forces Atlantic<br />

Page 6 of 106<br />

AFMIC - Armed Forces medical intelligence center<br />

AFMSS - Air Force mission support system<br />

AFNOC - Air Force network operations center<br />

AFOC - Air Force Operations Center<br />

AFORMS - Air Force Operations Resource Management System<br />

AFPCA - Air Force Pentagon Communications Agency<br />

AFR - assign <strong>and</strong> display frequency for network reporting<br />

AFRTS - armed forces radio <strong>and</strong> television service<br />

AFSAT - Air Force satellite<br />

AFSATCOM - Air Force satellite communications<br />

AFSC - Air Force specialty code<br />

AFSOB - Air Force special operations base<br />

AFSOC - Air Force Special Operations Comm<strong>and</strong><br />

AFSOF - Air Force Special Operations Forces<br />

AFSPC - Air Force Space Comm<strong>and</strong><br />

AFSS - automated flight service station<br />

AFT - automatic fund transfer<br />

AFTN - aeronautical fixed telecommunications network<br />

AFTS - audio frequency tone shift<br />

AFWIS - Air Force WWMCCS information system<br />

AG - applications generator<br />

AGC - assign gateway <strong>and</strong> commercial office routing<br />

AGC - (Automatic Gain Control) - Parameter implemented for the<br />

LDCELP module that provides the ability to automatically adjust<br />

the power level of a received signal. The power level of a received<br />

signal is automatically adjusted from a marginal or unacceptable<br />

value to one that is more suitable for voice or FAX applications.<br />

AGCCS - Army global comm<strong>and</strong> <strong>and</strong> control system<br />

Aggregate - Group - The approach used on the PRC, PRC INTL,<br />

<strong>and</strong> TMCP voice modules to group contiguous DS0 ports for<br />

clear-channel signaling (that is, the b<strong>and</strong>widths for the ports are<br />

grouped together).<br />

AGMS - automated gateway management system<br />

AGMS - automated gateway management system<br />

AGMS - automated gateway management system<br />

AGP - advanced graphics port<br />

AGS - airborne ground surveillance (NATO)<br />

AHCFMS - Army health care financial management system<br />

AHFEWS - Army high frequency electronic warfare system<br />

AHIMA - American Health Information Management Association<br />

AHP - analytical hierarchy process<br />

AHPCRC - Army high performance computer research center<br />

AI - analog input<br />

AI - artificial intelligence<br />

AIA - Air Intelligence Agency<br />

AIA - Army information architecture<br />

AIAC - ACCS implementation advisory committee (NATO)<br />

AIC - Atlantic Intelligence Comm<strong>and</strong><br />

AIC - Advanced integrated circuit<br />

AIC - air intercept control

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AIC - Army intelligence center<br />

AIC - Army interoperability center<br />

AIC - audio intercommunications center<br />

AICS - advanced interior communications system<br />

AIDC - automated intrusion detection capability<br />

AIDTS - Army inflight data transmission system<br />

AIE - Ada integrated environment<br />

AIF - audio interchange format<br />

AIG - address indicator groups<br />

AIG - Address Indicating Group<br />

AII - Army information infrastructure<br />

AIIM - Association for information <strong>and</strong> image management<br />

AIIP - Association of Independent Information Producers<br />

AIL - assign interswitch link initialization<br />

AIM - advanced infosec module<br />

AIMA - Army information & mission area<br />

AIMC - Army Information Management Committee<br />

AIMP - Army intelligence <strong>and</strong> electronic warfare master plan<br />

AIMS - advanced information management system<br />

AIMS - automated intrusion monitoring system<br />

AIMTB - artificial intelligence module test bed<br />

AIN - Army Information Network<br />

AIN - advanced intelligent network<br />

AIN - Army interoperability network<br />

AINC - Army Interoperability Network Center<br />

AIOD - automatic identified outward dialing<br />

AIPC - automated information processing center<br />

AIPS - Army information processing st<strong>and</strong>ards<br />

Air - Plenums - Air plenums are used to take air in <strong>and</strong> to exhaust it.<br />

AIRCOMTERM - air communications terminal<br />

AIRES - advanced imagery requirements exploitation system<br />

AIRK - area interswitch rekeying key<br />

AIRMS - advanced infrared measuring system<br />

AIRTERM - airborne terminal<br />

AIRV - area interswitch rekey variable<br />

AIS - automated information systems<br />

AIS - air intelligence squadron<br />

AIS - airborne intelligence system<br />

AIS - audio intercommunication system<br />

AIS - (Alarm Indication Signal) - 1. In modern T1/T3 systems, the<br />

AIS is an all ones signal transmitted in lieu of the normal signal to<br />

maintain transmission continuity <strong>and</strong> to indicate to the receiving<br />

terminal that there is a transmission fault that is located at the<br />

transmitting terminal or upstream of the transmitting terminal. It is<br />

also called "Blue Alarm" or "Blue Code." 2. automated information<br />

system.<br />

AISB - Association of Imaging Service Bureaus<br />

AISP - Association of Information Systems Professionals<br />

AISRV - area interswitch rekey variable<br />

AISS - automated information system security<br />

Page 7 of 106<br />

AISSP - Army information systems security program<br />

AIT - automatic identification technology (Army)<br />

AITC - Army interoperability test center<br />

AITN - Army interoperability test network<br />

AITS - advanced information technology services<br />

AJ - anti-jam<br />

AJCC - Alternate Joint Communications Center<br />

AJCM - anti-jam control modem<br />

AJCM - AJ control modem<br />

AJPO - Ada Joint Program Office<br />

AK - automatic keying<br />

AKDC - Automatic Key Distribution Center<br />

AKDC/RCU - automatic key distribution center/rekeying control unit<br />

AKMS - Army Key Management System<br />

AKO - Army Knowledge Online<br />

AL - address list<br />

AL - applications layer<br />

AL - address list<br />

Alarm - Log - Contains the events that have an alarm level<br />

associated with it for a node or the network.<br />

Alarm - Monitor - Type of operator console that displays active<br />

alarms.<br />

Alarm - Panel - An optional control panel that can be installed in a<br />

node. It provides audible <strong>and</strong> visual alarms governed by<br />

thresholds set by the user.<br />

ALBAM - air-l<strong>and</strong> battle assessment model<br />

ALBM - Army airl<strong>and</strong> battle management<br />

ALCC - airlift control center<br />

ALCC - Analog Line Conditioning Circuits<br />

ALCE - airlift control element (USAF)<br />

ALCG - analog line conditioning group<br />

ALCOM - Alaskan Comm<strong>and</strong><br />

ALD - assign local duplication<br />

ALD - Assign Local Duplication Comm<strong>and</strong><br />

ALE - automatic link establishment<br />

ALEC - alternate local exchange carriers<br />

ALERT - advanced law enforcement <strong>and</strong> response technology<br />

ALFS - airborne low-frequency sonar<br />

Algorithm - A sequence of steps a CPU follows to accomplish a<br />

task.<br />

ALICE - all-purpose lightweight individual carrying equipment<br />

ALLA - allied long lines agency (NATO)<br />

ALMS - automated logistics management system<br />

ALO - air liaison officer<br />

ALOC - administrative/logistics operations center<br />

ALOC - area logistics operation center<br />

ALOG - analog switch<br />

ALOHA - aerial locations for hazardous atmospheres (NOAA)<br />

ALP - auxiliary line printer

---

ALPC - adaptive link power control<br />

Alphanumeric - Refers to input consisting of letters, numbers, <strong>and</strong><br />

other symbols such as punctuation marks <strong>and</strong> mathematical<br />

symbols.<br />

ALPS - assembly line processing system<br />

ALQA - automatic link quality assessment<br />

ALS - Assign Loop Strapping Comm<strong>and</strong><br />

ALS/N - Ada language dystem/Navy<br />

ALSA - Air, L<strong>and</strong>, Sea Applications Center<br />

ALSP - aggregate level simulation protocol<br />

alt - alternate<br />

Alternate - Buffer - A section of memory set aside (reserved) for<br />

receipt or transmission of data after the primary buffer is full.<br />

Alternate - Routing - A feature of circuit switches that allows calls to<br />

be distributed <strong>and</strong> completed over other routes when the first<br />

route is unavailable.<br />

ALTG - Auxiliary Line Termination Group<br />

ALU - Arithmetic Logic Unit<br />

AM - active matrix<br />

AM - amplitude modulation<br />

AM/SSB - amplitude modulation/single sideb<strong>and</strong><br />

AMA - automatic message accounting<br />

AMA - Assign Manual Affiliation Comm<strong>and</strong><br />

AMANDDA - automated messaging <strong>and</strong> directory assistance<br />

AMD - active matrix display<br />

AMD - Assign Memory Display Comm<strong>and</strong><br />

AMDF - Army master fata gile<br />

AMDPCS - Air <strong>and</strong> Missile Defense Planning <strong>and</strong> Control System<br />

AMDRS - aviation medicine data retrieval system<br />

AME - aerospace management element<br />

AME - antenna mounted electronics<br />

AMH - automated (automatic) message h<strong>and</strong>ling<br />

AMHS - Automated Message H<strong>and</strong>ling System<br />

AMI - (Alternate Mark Inversion) - A digital signal in which<br />

successive "marks" or ones alternate between positive <strong>and</strong><br />

negative polarity of equal amplitude. Two ones of the same<br />

polarity in a row constitute a bipolar violation. See Line Coding,<br />

T1. See Also B8ZS.<br />

AMIDS - audit monitoring <strong>and</strong> intrusion detection system<br />

AMIS - Army management information system<br />

AMLCD - active matrix liquid crystal display<br />

AMME - automated multimedia exchange<br />

AMO - acquisition (automation) management (office) organization<br />

(DISA & Army))<br />

AMO - Automation Management Office<br />

AMP - amplifier<br />

AMPE - automated message processing exchange<br />

Amplifier - A device used to boost the strength of an electronic<br />

signal.<br />

Amplitude - The magnitude of variation in a changing quantity from<br />

its zero value. The word must be modified with an adjective such<br />

as peak, rms, maximum, <strong>and</strong> so on, which designates the specific<br />

amplitude in question.<br />

Page 8 of 106<br />

AMPS - advanced mobile phone system (st<strong>and</strong>ard)<br />

AMPS - airborne multisensor pod system<br />

AMPS - automated (aviation) mission planning system<br />

AMPSSO - Automated Message Processing System Security Officer<br />

AMRIS - advanced magnetic resonance imaging <strong>and</strong> spectroscopy<br />

AMRIS - Army modernization resource information system<br />

AMS - autonomous message switch<br />

AMS - alert management system<br />

AMS - asset management system<br />

AMSMP - Army modeling & simulation management program<br />

AMSS - ammunition management st<strong>and</strong>ard system<br />

AMSS - automatic meteorological sensor station (system)<br />

AMT - Assign Multiple Trunks Comm<strong>and</strong><br />

AMTS - automated maritime telecommunications system<br />

AMVER - automated mutual assistance vessel rescue (Coast Guard)<br />

Analog - Signal - A signal that varies in a continuous manner, such<br />

as in human speech or music.<br />

ANCA - allied naval communications agency (NATO)<br />

ANCD - automated net control device<br />

ANCS - ATM node center switch<br />

ANCT - alternate network control terminal<br />

ANDC - automated net control device<br />

ANDF - architecturally neutral distribution format<br />

ANDVT - advanced narrowb<strong>and</strong> digital voice terminal<br />

ANG - Air National Guard<br />

ANGLICO - air <strong>and</strong> naval gunfire liaison company<br />

ANI - Automatic Number Identification- A system, originally designed<br />

for use by Interexchange carriers (IEC’s) which transmits the<br />

"billed party number" along with a call. Note that the billed party<br />

number is not necessarily the number of the line placing the call.<br />

ANI predates SS7 <strong>and</strong> can operate in with analog as well as<br />

digital trunks. See also CLID.<br />

ANICS - Alaskan national airspace system interfacility<br />

communications system<br />

ANN - artificial neural network<br />

ANOC - alternate network operations control<br />

ANR - assign net rekeying<br />

ANR - Assign Net Rekeying Comm<strong>and</strong><br />

ANSI - American National St<strong>and</strong>ards Institute<br />

ANSIR - awareness of national security issues <strong>and</strong> response (FBI)<br />

ant - antenna<br />

ANVIS - aviatorÕs night vision imaging system<br />

ANY - assign NYX routing<br />

AO - analog output<br />

AO - area of operations<br />

AOAS - advanced oceanic automation system (FAA)<br />

AOC - Air Operations Center (was TACC) (USAF)<br />

AOC - aerospace operations center<br />

AOC - Air Operations Center<br />

AOCU - analog orderwire control unit

---

AOD - assign online diagnostic<br />

AOD - Assign On-Line Diagnostics Comm<strong>and</strong><br />

AODMD - acousto-optic delay-<strong>and</strong>-multiple device<br />

AOG - Architecture Oversight Group (DOD)<br />

AOI - area of interest<br />

AOI - Assign Other Equipment In/Out-of-Service Comm<strong>and</strong><br />

AOR - area of responsibility<br />

AOR - Assign <strong>and</strong> Display Unstaffed Operator Routing Comm<strong>and</strong><br />

AP - adjunct processor<br />

AP - anomalous propagation<br />

AP - application processor<br />

APA - adaptive packet<br />

APA - advanced processor assembly<br />

APA - all points addressable<br />

APA - arithmetic processing accelerator<br />

APAC - ACCS planning <strong>and</strong> policy advisory committee (NATO)<br />

APAN - Asia Pacific Area Network<br />

APC - adaptive predictive coding<br />

APC - assign preprogrammed conference list<br />

APCU - antenna position control unit<br />

APELS - airborne precision emitter location system<br />

APF - assign profile<br />

APF - Assign Profiles Comm<strong>and</strong><br />

APG - automated password generator<br />

API - application programming (programmer’s) (program) interface<br />

APIC - advanced programmer interrupt controller<br />

APII - Asia Pacific information infrastructure<br />

APIMS - aerospace physiology information management system<br />

APIU - adaptable programmable interface unit<br />

APL - average picture level<br />

APL - Assign Pre-Affiliation List Comm<strong>and</strong><br />

APP - application portability profile<br />

APP - application-defined<br />

APPI - advanced peer-to-peer internetworking<br />

Appl - apply<br />

Applications-Specific - Network - A network dedicated to specific<br />

applications such as ATMs, point-of-purchase registers, fund<br />

transfers, etc.<br />

APPN - advanced peer-to-peer networking<br />

APPS - automated publications production system<br />

APR - assign packet switch routing<br />

APRP - adaptive pattern recognition processing<br />

APS - active pixel sensor<br />

APS - advance planning system (USAF)<br />

APS - afloat planning system<br />

APS - asynchronous protocol specification<br />

APS - auxiliary propulsion subsystem<br />

APSE - Ada programming support environment<br />

APT - automatically programmed tools<br />

APTS - afloat personal telecommunications service<br />

APV - Assign Password Verification Comm<strong>and</strong><br />

AR - Army; Army regulation (when followed by a number)<br />

ARC - Army Reuse Center<br />

ARC - A term used to designate linear features on a digital map.<br />

ARCA - advanced RISC computing architecture<br />

ARCENT - US Army Central<br />

ARCIS - Army company information system<br />

ARCMIS - automated radiological management information system<br />

ARDF - airborne radio direction finding<br />

ARDS - assign/display routing subsystem downsized (RSSD)<br />

download<br />

AREUR - US Army Europe<br />

ARF - airborne relay facility<br />

ARFA - allied radio frequencies agency (NATO)<br />

ARFOR - Army forces<br />

ARG - amphibious ready group<br />

ARH - anti-radiation homing<br />

ARI - addressee routing indicator<br />

ARIES - airborne reconnaissance integrated electronics system<br />

ARJFC - US Army Joint Forces Comm<strong>and</strong><br />

ARL - adjusted ring length<br />

ARL - aerial (airborne) reconnaissance-low<br />

ARL - airborne reconnaissance low (Army)<br />

ARL - Army Research Laboratory<br />

ARLL - advanced run length limited<br />

ARLNO - Armor Liaison Officer<br />

ARM - application reference model<br />

ARM - Ada requirements methodology<br />

ARM - ADP resources manager<br />

ARMISS - agency resources management information system<br />

ARMS - automated records management system (Air Force)<br />

ARO - airborne reconnaissance office<br />

AROW - acquisition/reportback orderwire<br />

ARP - Address Resolution Protocol<br />

ARPA - Advanced Research Projects Agency (Now DARPA)<br />

ARPAC - US Army Pacific<br />

ARPANET - Advanced Research Projects Agency network<br />

ARPL - adjust requested privilege level<br />

ARQ - Automatic Retransmission Request<br />

ARRC - allied comm<strong>and</strong> rapid reaction corps (NATO)<br />

ARRL - American Radio Relay League<br />

ARS - aerial reconnaissance & surveillance<br />

ARS - air radio system<br />

ARS - automatic route selection<br />

ARS-ST - airborne receiving system-surface terminal (Navy)<br />

ARS - action request system<br />

Page 9 of 106

---

ARSOF - Army Special Operations Forces<br />

ARSOUTH - US Army South<br />

ART - Aiborne Receive Terminal<br />

ARTAC - Army tactical<br />

ARTADS - Army tactical data system<br />

ARTCC - air route traffic control center<br />

ARTEP - Army Training <strong>and</strong> Evaluation Program<br />

ARTS - asynchronous remote takeover server<br />

ARTS - asynchronous remote takeover terminal<br />

ARU - access/relay unit<br />

ARU - audio response unit<br />

AS - autonomous system<br />

AS - analog secure<br />

ASAC - all source analysis center<br />

ASACAC - Army Security Agency Control <strong>and</strong> Analysis Center<br />

ASAP - automated statistical analysis program<br />

ASAP - automatic switching <strong>and</strong> processing<br />

ASARS - advanced synthetic aperture radar system<br />

ASAS - all source analysis system (Army)<br />

ASAT - anti-satellite<br />

ASB - area signal battalion<br />

ASBR - autonomous system border router<br />

ASC - Aeronautical Systems Center<br />

ASC - American St<strong>and</strong>ards Committee<br />

ASC - Area Signal Center<br />

ASC - Army Signal Comm<strong>and</strong> (formerly ISC)<br />

ASC - AUTODIN switching center<br />

ASC - automatic switching center<br />

ASC - Assign <strong>and</strong> Display Switch Classmarks Comm<strong>and</strong><br />

ASC2A - Air <strong>and</strong> Space Comm<strong>and</strong> <strong>and</strong> Control Agency<br />

ASCI - accelerated strategic computing initiative (DOE)<br />

ASCIET - all-service combat identification evaluation team<br />

ASCII - (American St<strong>and</strong>ard Code for Information Interchange) - The<br />

st<strong>and</strong>ard 7-bit code, using a coded character set consisting of 7bit<br />

coded characters (8 bits including a parity check bit) used for<br />

informality interchange among data processing systems, data<br />

communication systems, <strong>and</strong> associated equipment. The ASCII<br />

set consists of control characters <strong>and</strong> graphic characters <strong>and</strong> is<br />

properly an alphabet rather than a code. It is the U.S.<br />

implementation of the International Telegraph Alphabet Number<br />

5.<br />

ASCT - auxiliary satellite control terminal<br />

ASCXN - area Signal center extension node<br />

ASD - access security device (NETS)<br />

ASD - assigned software developer<br />

ASD - automated system demonstration<br />

ASD - Assistant Secretary of Defense<br />

ASD(C3I) - Assistant Secretary of Defense for Comm<strong>and</strong>, Control,<br />

Communications, <strong>and</strong> Intelligence<br />

ASDI - Analog Simple Data Interface<br />

ASDS - air situation display system (USAF)<br />

Page 10 of 106<br />

ASEM - application-specific electronic module<br />

ASEN - ATM SEN<br />

ASEPS - automated Signal excess prediction system<br />

ASI - alternate space inversion<br />

ASI - alarm status indicator<br />

ASI - assign switch initialization<br />

ASIC - all source intelligence center<br />

ASIC - (Application Specific Integrated Circuit) - A custom integrated<br />

circuit.<br />

ASIM - automated security incident measurement (Navy)<br />

ASIMS - Army sustaining base information management system<br />

ASIS - Ada semantic interface specification<br />

ASIS - American Society for Information Science<br />

ASIS - American Society of Industrial Security<br />

ASIT - adaptable surface interface terminal<br />

ASIT - advanced security <strong>and</strong> identification technology<br />

ASK - amplitude shift keying<br />

ASKMM - Advanced St<strong>and</strong>ard Key Management Module<br />

ASL - adaptive speed leveling<br />

ASM - airspace management<br />

ASM - application of software measurement<br />

ASM - Army security monitor<br />

ASM - assembler source language<br />

ASMG - allied security military general<br />

ASMP - asymmetric multiprocessing<br />

ASMPC - automated staff message processing center<br />

ASN - abstract syntax notation<br />

ASN - autonomous system number<br />

ASN.1 - Abstract Syntax Notation 1<br />

ASOC - alternate systems operation control<br />

ASOC - air support operations center<br />

ASOS - Army secure operating system<br />

ASOS - automated surface observing system<br />

ASP - applications service provider<br />

ASP - Army Space Comm<strong>and</strong><br />

ASP - Association of Shareware Professionals<br />

ASPECTS - Automated Spectrum Planning, Engineering,<br />

Coordination <strong>and</strong> Tracking System<br />

ASPJ - advanced self-protection jammer<br />

ASPO - Army Space Program Office<br />

ASPS - advance signal processing system<br />

ASQC - American Society for Quality Control<br />

ASR - automatic send <strong>and</strong> receive<br />

ASR - automatic speech recognition<br />

ASR - assign SEN/RAU/NMT<br />

ASSET - asset source for software engineering technology<br />

ASSET - all-source satellite evaluation tool<br />

ASSIST - automated systems security <strong>and</strong> incident support team

---

ASSIST - Army special security information systems terminal<br />

ASSP - application-specific st<strong>and</strong>ard product<br />

AST - airborne surveilance testbed<br />

ASTA - airport surface traffic automation (FAA)<br />

ASTE - advanced strategic <strong>and</strong> tactical expendables<br />

ASTEC - advanced satellite technology <strong>and</strong> EHF communications<br />

ASTER - advanced spaceborne thermal emissions <strong>and</strong> reflection<br />

radiometer<br />

ASTIA - Armed Services Technical Information Agency<br />

ASTOR - airborne st<strong>and</strong>-off radar (UK)<br />

ASTP - advanced space technology program (DARPA)<br />

ASTRO - Army Space Technology <strong>and</strong> Research Office<br />

ASUWC - anti-surface warfare comm<strong>and</strong>er (Navy)<br />

ASVC - automatic secure voice communications<br />

ASW - asynchronous service window<br />

ASW - attack, sensing, <strong>and</strong> warning<br />

ASWC - anti-submarine warfare Comm<strong>and</strong>er (Navy)<br />

ASWCCS - ASW comm<strong>and</strong> <strong>and</strong> control system<br />

ASY - asynchronous<br />

ASYNC - asynchronous<br />

Asynchronous - Data - A form of serial data communication which<br />

is not clocked. To keep the bit stream synchronized start <strong>and</strong> stop<br />

bits are used. RS-232 computer data is commonly asynchronous<br />

data. In contrast to synchronous data.<br />

Asynchronous - Transmission - Transmission in which the interval<br />

between transmitted characters may be of unequal length. Data<br />

transmission <strong>and</strong> timing is controlled by start <strong>and</strong> stop bits at the<br />

beginning <strong>and</strong> end of each character. It is also referred to as startstop<br />

transmission. Asynchronous transmission does not require<br />

the transmitters <strong>and</strong> receivers to have clocks to stay in synch.<br />

AT - access t<strong>and</strong>em<br />

AT - asynchronous transmission<br />

ATA - advanced technology attachment<br />

ATACC - advanced tactical air comm<strong>and</strong> center (central)<br />

ATACC - alternate tactical air control center<br />

ATACS - advanced target acquisition counter-fire system<br />

ATACS - Army Tactical Communications System<br />

ATAPI - advanced technology attachment packet interface<br />

ATARS - advanced tactical air(borne) reconnaissance system<br />

ATB - all trunks busy<br />

ATC - air traffic control<br />

ATCA - Allied Tactical Communications Agency (NATO)<br />

ATCALS - air traffic control <strong>and</strong> l<strong>and</strong>ing system<br />

ATCAP - Army Telecommunication Automation System<br />

ATCAS - air traffic control automation system (FAA)<br />

ATCC - air traffic control center<br />

ATCCIS - Army tactical comm<strong>and</strong> <strong>and</strong> control information system<br />

ATCCS - Army Tactical Comm<strong>and</strong> <strong>and</strong> Control System<br />

ATCCSS - air traffic control communications switching system<br />

atch - attached<br />

Page 11 of 106<br />

ATCISA - Allied Tactical Communications <strong>and</strong> Information Systems<br />

Agency<br />

ATCU - air transportable communications unit<br />

ATD - advanced technology demonstrations<br />

ATDL - Army tactical data link<br />

ATDM - asynchronous time-division multiplexing<br />

ATDM - adaptive time division multiplexer<br />

ATDS - airborne tactical data system (USN)<br />

ATDT - attention dial tone<br />

ATE - automatic test equipment<br />

ATEC - automatic test control<br />

ATFES - Army Tactical Frequency Engineering System<br />

ATG - antenna transceiver group<br />

ATG - Assign Trunk Group Cluster Comm<strong>and</strong><br />

ATH - Assign <strong>and</strong> Display Thresholds Comm<strong>and</strong><br />

ATHS - airborne target h<strong>and</strong>over system<br />

ATI - artillery target intelligence<br />

ATID - advanced technical interoperability demonstration<br />

ATID - automated tactical information display<br />

ATIP - Ada technology insertion program<br />

ATIRCM - advanced threat (tactical) infrared countermeasures<br />

ATIS - Alliance for Telecommunications Industry Solutions<br />

ATIS - automatic terminal information service (FAA)<br />

ATL - assign transfer list<br />

ATM - air traffic management<br />

ATM - asynchronous transfer mode<br />

ATM - automated teller machine<br />

ATM - asynchronous transmission mode<br />

ATM - Assign Traffic Metering Comm<strong>and</strong><br />

ATMAC - Air Traffic Management Automated Center<br />

ATMHS - automatic text message h<strong>and</strong>ling system<br />

ATMSDI - air traffic management system development <strong>and</strong><br />

integration<br />

ATN - aeronautical telecommunications network (FAA)<br />

ATNAVICS - air traffic navigation, integration <strong>and</strong> coordination<br />

system<br />

ATO - air tasking order<br />

ATO - authorization to operate<br />

ATS - assign terminal service<br />

ATP - allied technical publication<br />

ATR - advanced tactical radar<br />

ATR - automatic target recognition<br />

ATR - automatic terminal recognition<br />

ATRJ - advanced threat radar jammer<br />

ATS - air traffic services<br />

ATS - afloat telecommunications service<br />

ATS - automatic terminal recognition<br />

ATS - automated tasking system

---

ATS - assign terminal service<br />

ATSS - automatic test support system<br />

ATT - Assign Terminal Type Comm<strong>and</strong><br />

Attenuation - The difference between transmitted <strong>and</strong> received<br />

power due to transmission loss through equipment, lines, or other<br />

communication devices.<br />

attn - attention<br />

ATV - advanced television<br />

Audit - Trail - A record of events that have taken place in a network.<br />

AUI - attachment unit interface<br />

AUIB - aircrew uniform integrated battlefield<br />

AUP - acceptable use policy [Internet]<br />

AUR - automated underwriter system (Treasury)<br />

auth - authority<br />

AUTO - automatic<br />

Auto - Event Log - Type of operator console that displays real-time<br />

events.<br />

Autobaud - The process of automatically adjusting to or adapting<br />

equipment to the speed of the equipment to which it connects or<br />

is connected.<br />

AUTODIN - Automatic Digital Network<br />

Automatic - Alternate Routing - In the event that a network is<br />

disrupted, the node will automatically reroute each call according<br />

to its priority when a path becomes available.<br />

Automatic - Call Reconnect - Call reconnect permits automatic call<br />

rerouting away from a trunk experiencing a failure. The order of<br />

rerouting that takes place is based on a port's call priority.<br />

Automatic - Call Rerouting - A disconnected call is automatically<br />

rerouted away from a trunk experiencing a failure through other<br />

multiplexers <strong>and</strong> lines for continuation of voice or data traffic.<br />

Rerouting is based on a port's call priority.<br />

Automatic - Clock Restoral - A node parameter used to<br />

automatically synchronize to the next highest clock source when<br />

the current clock source becomes unavailable.<br />

AUTOSEVOCOM - Automatic Secure Voice Communications<br />

AUTOVON - Automatic Voice Network<br />

AUX - auxiliary<br />

Auxiliary - Alarm - A condition derived from an external equipment<br />

connection. The auxiliary alarm input is mapped onto the crypto<br />

circuit connector. The default state is programmable.<br />

Auxiliary - Fan - Cooling device for a Promina 800 EXS system (part<br />

of the alarm panel).<br />

AVC - automatic voice control<br />

AVCATT - aviation combined arms tactical trainer<br />

AVD - alternate voice/data<br />

AVDTG - analog via digital transmission group<br />

AVDTG - AUTOVON digital trunk group<br />

AVIMO - Army visual information management office<br />

AVL - assign variable location<br />

AVLTU - AUTOVON line termination unit<br />

avn - aviation<br />

AVOW - Analog Voice Orderwire<br />

AVR - automatic voice recognition<br />

AVT - automatic video tracker<br />

Page 12 of 106<br />

AVTOC - aviation tactical operations center<br />

AWACS - airborne warning <strong>and</strong> control system<br />

AWC - air warfare coordinator<br />

AWDS - automated weather distribution system<br />

AWE - Advanced Warfighting Experiment<br />

AWE - aircraft weapons electronics<br />

AWG - American wire gauge<br />

AWIPS - automated (advanced) weather interactive processing<br />

system<br />

AWIS - Army WWMCCS information system<br />

AWN - automated weather network<br />

AWN - Air Weather Network<br />

AWS - advanced warning system<br />

AWS - analyst workstation<br />

AWSIM - air warfare simulation<br />

AX - automatic transmission<br />

az - azimuth<br />

AZR - assign zone restrictions<br />

B<br />

B-CDMA - broadb<strong>and</strong> code-division multiple access<br />

B-ISDN - broadb<strong>and</strong> ISDN<br />

B - Channel (Bearer) - In ISDN (Integrated Services Digital Network),<br />

a 64 kbps information carrying channel, capable of carrying lower<br />

rates within the 64 kbps channel.<br />

B/B - baseb<strong>and</strong><br />

B/P/C/S - base, post, camp, <strong>and</strong> station<br />

B2C2 - brigade (battalion) <strong>and</strong> below Comm<strong>and</strong> <strong>and</strong> control<br />

B3ZS - (Bipolar with Three Zero Substitution) - This format is used at<br />

the DS3 level for zero code suppression <strong>and</strong> is used only with the<br />

T3 Trunk module in a Promina 800.<br />

B8ZS - (Binary Eight Zero Substitution) - A deliberate bipolar<br />

violation to solve the ones density problem, or to accommodate<br />

the requirements of digital T1-carrier facilities in the public<br />

network, while allowing 64 kbps clear data per channel. Rather<br />

than inserting a one for every seven consecutive zeroes (see<br />

Ones Density), B8ZS inserts two violations of the bipolar line<br />

encoding technique used for digital transmission links. This format<br />

is used at the DS1 for zero code suppression.<br />

BAAS - broad area surveillance system<br />

Backbone - Network - A transmission system that is designed to<br />

interconnect <strong>and</strong> integrate a variety of voice, data, <strong>and</strong> image<br />

networks of a diverse array of equipment, plus all applications.<br />

Backplane - Connection point between the modules <strong>and</strong> the shelf,<br />

includes jumper settings.<br />

BADD - battlefield awareness <strong>and</strong> data dissemination<br />

BAI - battlefield air interdiction<br />

BAIR - battlefield automation integration review<br />

BAL - basic assembly language<br />

BAL - balanced<br />

BAM - Basic Access Module

---

BAMD - battlefield automation management directorate<br />

BAMP - battlefield automation management program<br />

BAN - base area network (Air Force)<br />

B<strong>and</strong>width - The frequency range between the highest <strong>and</strong> lowest<br />

frequencies, expressed in hertz, passed through a network.<br />

B<strong>and</strong>width is divided into smaller frequency ranges, which can be<br />

assigned to particular transmission uses.<br />

B<strong>and</strong>width - Calculations - In addition to b<strong>and</strong>width that is used by a<br />

call, there may be transparent signaling b<strong>and</strong>width, <strong>and</strong> trunk<br />

asynchronous b<strong>and</strong>width as well. Transparent signaling<br />

b<strong>and</strong>width is required for data calls configured for transparent<br />

signaling. Trunk asynchronous b<strong>and</strong>width is required for calls that<br />

originate from a data port with a port speed that is not divisible by<br />

8 kbps, USD ports configured as pass-through timing, <strong>and</strong> QASD<br />

ports configured for asynchronous timing.<br />

B<strong>and</strong>width - On Dem<strong>and</strong> (BOD) - The assignment of b<strong>and</strong>width to a<br />

trunk (circuit link) only when the call is active. When the call is<br />

terminated, that b<strong>and</strong>width is then available for other calls.<br />

B<strong>and</strong>width - Pooling - A feature that allows pooling of the capacity<br />

of individual trunks between nodes. It treats pooled b<strong>and</strong>width as<br />

an aggregate trunk link. B<strong>and</strong>width for a particular call is<br />

contiguous on one trunk, <strong>and</strong> a call cannot be divided across<br />

more than one trunk.<br />

B<strong>and</strong>width - Reservation - An approach that allows the user to<br />

reserve b<strong>and</strong>width for a call. It is especially useful for highb<strong>and</strong>width<br />

or high-priority calls. By entering the appropriate<br />

information in a port's database, a specified amount of b<strong>and</strong>width<br />

can be reserved on a daily or one-time basis. When there is<br />

insufficient b<strong>and</strong>width, reservation depends on normal call<br />

attrition. As calls hang up, b<strong>and</strong>width is reserved. Only calls with<br />

priority lower than the call's preempt priority are refused.<br />

BAS - Battlefield Automated Systems<br />

Baseb<strong>and</strong> - The frequency b<strong>and</strong> occupied by a single or composite<br />

signal in its original or unmodulated form.<br />

BASEWAM - battlefield surveillance electronic warfare analysis<br />

model<br />

BASIC - beginner’s all-purpose symbolic instruction code<br />

BASM - built-in assembler<br />

BAT - block address translation<br />

BAT - battery<br />

BATCON - battalion comm<strong>and</strong><br />

BATES - battlefield artillery target engagement system<br />

Baud - A measure of signaling rate for a digital signal, which is<br />

approximately equal to bits per second.<br />

BAV - broadcast area variables<br />

BBC - backup bus controller<br />

BBMTA - border BMTA<br />

BBN - BaseB<strong>and</strong> Node<br />

BBS - bulletin board system<br />

BC - Broadcast<br />

BC - bus controller<br />

BC2AS - Bosnia comm<strong>and</strong> <strong>and</strong> control augmentation system<br />

BCBL - Battle Comm<strong>and</strong> Battle Lab<br />

BCC - (Block Check Character) - An error detection technique in<br />

which a character is appended to the end-of-message indicator at<br />

the end of a block of synchronous data. Using a predefined<br />

algorithm, the transmitter computes the BCC. If there are no<br />

errors (XMT <strong>and</strong> XCV data are equal), the receiver's BCC should<br />

match that of the transmitter.<br />

Page 13 of 106<br />

BCCS - battle comm<strong>and</strong> <strong>and</strong> control system<br />

BCD - binary-coded decimal<br />

BCI - bit count integrity<br />

BCID - battlefield combat identification<br />

BCIS - battlefield combat identification system<br />

BCL - batch comm<strong>and</strong> language<br />

BCN - beacon<br />

BCOR - brigade COMSEC office of record<br />

BCP - bulk copy program<br />

BCR - battlefield communications review<br />

BCR - byte count register<br />

BCS - ballistic computer system<br />

BCS - battery computer system<br />

BCS - block check sequence<br />

BCS - baseb<strong>and</strong> communications system<br />

BCSR - basic commercial security requirements<br />

BCT - battlefield comm<strong>and</strong> terminal<br />

BCT - Brigade combat teams<br />

BCTP - battle comm<strong>and</strong> training program<br />

BCU - battery computer unit<br />

BCU - buffer <strong>and</strong> conversion unit<br />

BCV - battle comm<strong>and</strong> vehicle<br />

BDA - dattle damage assessment<br />

BDC - backup domain controller<br />

BDD - binary decision diagrams<br />

bde - brigade<br />

BDI - BLACK digital interface<br />

BDMS - baseline data base management System<br />

BDOS - basic disk operating system<br />

BDS - battlefield data system<br />

BECN - backward error correction notification<br />

Bell - Labs - The basic research facility which was AT&T's primary<br />

research facility. Bell Labs was spun off with Lucent<br />

Technologies. Many very important discoveries have been made<br />

at Bell Labs including the transistor, communications theory, <strong>and</strong><br />

radio astronomy.<br />

Bellcore - BELL COmmunications REsearch. See Telcordia. The<br />

research <strong>and</strong> development organization owned by the RBOCs.<br />

Bellcore represents the RBOCs in developing st<strong>and</strong>ards for Telco<br />

equipment <strong>and</strong> in testing equipment compliance to those<br />

st<strong>and</strong>ards. Bellcore also offers educational <strong>and</strong> training programs<br />

open to all interested parties.<br />

BEPS - biological experiment per second<br />

BER - Basic Encoding Rules<br />

BER - (Bit Error Rate) - The percentage of received bits in error,<br />

relative to a specific amount of bits received. It is usually<br />

expressed as a number referenced to a power of 10.<br />

BERT - 1. Bit Error Rate Test- A test for digital lines which involves<br />

looping a data path <strong>and</strong> sending a test pattern. Data returning is<br />

compared to the sent data to check for errors. Depending on the<br />

"Test Pattern" used, BERTs may or may not uncover problems. A<br />

line which only has occasional problems will need a BERT of<br />

sufficient time duration to catch that intermittent problem. A five<br />

minute BERT of an ISDN BRI circuit will only catch severe

---

problems. 2. A Bit Error Rate Tester. The test equipment used to<br />

perform a Bit Error Rate Test.<br />

BET - bulk-encrypted transaction<br />

BETA - battlefield exploitation target acquisition<br />

BEX - broadb<strong>and</strong> exchange<br />

BEZS - (B<strong>and</strong>width Efficient Zero Suppression) - An N.E.T.developed<br />

method of zero-byte substitution to guarantee ones<br />

density (forcing a zero-byte--0000 0000 binary--to a one-byte--<br />

0000 0001 binary) in accord with AT&T's specification for the<br />

Accunet T1.5. All trunks used by a circuit must be configured for<br />

BEZS to ensure that data is not corrupted. BEZS is the N.E.T.<br />

version of the industry st<strong>and</strong>ard for B8ZS (Bipolar with Eight Zero<br />

Suppression).<br />

BEZS - Trunk Interface Card - This card provides a DS1 bipolar<br />

signal to one full-duplex T1 trunk. It also supports maximum<br />

b<strong>and</strong>width zero suppression (MBZS).<br />

BFA - battlefield function<br />

BFA - Battlefield Functional Area<br />

BFACS - battlefield functional area control system<br />

BFN - beam forming network<br />

BFSK - binary frequency shift keying<br />

BFT - binary file transfer<br />

BFTT - battle force tactical training (Navy)<br />

BG - battle group<br />

BGE - branch if greater or equal<br />

BGP - Border Gateway Protocol<br />

BGPHES - battle group passive horizon extension system<br />

BHCC - Busy Hour Call Completions<br />

BI - binary input<br />

BI - business intelligence<br />

BIC - bus interface controller<br />

BICC - Battlefield Information Coordination Center<br />

BICEP - battlefield integrated concept emulation program (Army)<br />

BICES - battlefield information collection <strong>and</strong> exploitation system<br />

(NATO)<br />

BIFF - battlefield identification friend or foe<br />

BII - base information infrastructure<br />

Billing - Telephone Number - The main phone number which all<br />

calls on a PRI are billed to. This information is required when<br />

configuring a PRI PBX.<br />

BIMS - battlefield information management system<br />

BIND - Berkeley Internet Name Domain<br />

BIOS - basic input-output system<br />

BIP - base information protection<br />

Biphase - Coding - A bipolar coding format, also referred to as<br />

Manchester coding, which allows clock information to be<br />

imbedded into <strong>and</strong> recovered from the synchronous data stream<br />

without the need for separate clocking leads.<br />

Bipolar - Eight-Zero Suppression - Removes the requirement for<br />

ones-density at the 64 kbps level by sending a bipolar violation<br />

code at the 1.544 Mbps level.<br />

Bipolar - Signal - A digital signal, also referred to as AMI (alternate<br />

mark inversion) that conveys binary digits in which successive<br />

"marks" or ones alternate between positive <strong>and</strong> negative polarity,<br />

equal in amplitude. Spaces or zeros are of zero amplitude.<br />

Page 14 of 106<br />

Bipolar - Violation - This signal is generated when receiving<br />

equipment detects two ones in a row of the same polarity in a bit<br />

stream. Also see zero suppression.<br />

BIPS - billion instructions per second<br />

BIRS - battlefield information reporting system<br />

BIS - Battlefield Information Services<br />

BISDN - broadb<strong>and</strong> integrated services digital network<br />

BIST - built-in self-test<br />

BiSync - (Binary Synchronous Communications) - A communication<br />

protocol used by IBM. It uses a defined set of control characters<br />

<strong>and</strong> control character sequences for synchronized transmission of<br />

binary coded data between stations in a data communications<br />

system.<br />

BIT - built-in test<br />

Bit - (Binary Digit) - In digital circuits, the basic unit of information<br />

designated by one of two possible values, 0 or 1.<br />

Bit - 7 Stuffing - Used to maintain ones-density requirements by<br />

forcing Bit 7 (second least significant bit) to a one when all bits of<br />

a byte (8-bit) are all zeros.<br />

Bit - Error Rate Test - See BERT.<br />

Bit - Rate - The capacity of a digital channel. ISDN calls are set up at<br />

a given bit rate, either 64Kbps or 56Kbps. The bit rate cannot be<br />

changed during a call. See Kbps.<br />

Bit-Oriented - Protocol - A protocol such as SDLC (Synchronous<br />

Data Link Control) <strong>and</strong> HDLC (High-Level Data Link Control).<br />

BITE - built in test equipment<br />

BITS - battlefield information transmission system<br />

BIU - bus interface unit<br />

BIX - byte information exchange (BBS)<br />

BL - backlit<br />

BL - baseline<br />

BLACK - unclassified<br />

BLII - base level information infrastructure<br />

blk - block(s)<br />

BLOBS - binary large objects<br />

Block - The means for preventing calls on links, trunks, or ports.<br />

Blocking - When a circuit switched call cannot be completed. The<br />

percentage of blocked calls to the number of calls attempted<br />

forms the basis of a statistic called "grade of service". While it is<br />

economically infeasible to build a network which would have no<br />

blocking, the phone company are held accountable by the utility<br />

commissions to keep blocking below tariffed levels. The concept<br />

of blocking cannot be applied to packet networks, only circuit<br />

switched networks.<br />

BLOS - beyond line-of-sight<br />

BLSM - base level system modernization (See GCSS-AF)<br />

BLWE - Battle Lab warfighting experiment<br />

BM - battle management<br />

BM/C3 - battle management/comm<strong>and</strong>, control, <strong>and</strong> communications<br />

BMAN - broadb<strong>and</strong> metropolitan area network<br />

BMD - ballistic missile defense (formerly SDI)<br />

BMDO - Ballistic Missile Defense Organization (formerly SDIO)<br />

BMM - BLACK Multiplexer Module<br />

BMO - battalion maintenance officer<br />

BMP - batch message processing program

---

BMTA - backbone message transfer agent<br />

BN - backbone network<br />

bn - battalion<br />

BNC - British Naval Connector<br />

BNC - Bayonet Neill Concelman [Electronics] (connector used with<br />

coaxial cable, named after inventor). Also: British naval<br />

connector.<br />

BNCC - Base Network Control Center<br />

bnd - b<strong>and</strong><br />

BNE - branch if not equal<br />

BO - binary output<br />

BOC - Bell Operating Company<br />

BOH - bottom of hill<br />

BOI - basic operator interface<br />

BOIS - battlefield operating instruction system<br />

BOM - bit-oriented message<br />

BONES - block-oriented network simulator<br />

BOO - base of operations<br />

BOOTP - Bootstrap Protocol<br />

BOP - bit oriented protocol<br />

BOS - basic operating system<br />

BOS - Battlefield Operating System<br />

BOSS - base operations support system<br />

Both - Way Trunks - See Combination Trunks.<br />

BPA - blanket purchase agreement<br />

BPA - business process automation<br />

BPF - Berkeley Packet Filter<br />

BPFTP - Bullet-proof FTP<br />

BPI - bit per inch<br />

BPM - background processing management<br />

BPOM - breadboard on passive optic network<br />

BPP - Brokered Private Peering<br />

BPR - business process reengineering<br />

bps - (Bits Per Second) - A measure of the information transfer rate<br />

of a data channel.<br />

Bps - bytes per second<br />

BPSK - binary phase-shift keying<br />

BRI - ISDN Basic Rate Interface. The common form of ISDN with 2<br />

Bearer Channels <strong>and</strong> one D Channel. All three channels are on a<br />

single copper pair <strong>and</strong> encoded with type 2B1Q coding.<br />

BRI-S - Basic-Rate S-Interface<br />

BRI-U - Basic Rate U-Interface<br />

Bridge - A device that connects two or more physical networks, <strong>and</strong><br />

transmits packets between them. Bridges can filter packets; that<br />

is, the transmittal of certain packets. Also see repeater <strong>and</strong> router.<br />

BRITE - Basic Rate Interface Transmission Extension. A technology<br />

where ordinary T-1 trunks (or any other digital carrier system) are<br />

used to extend ISDN service. See also Repeater.<br />

Broadb<strong>and</strong> - Characteristic of any network that multiplexes several<br />

independent network carriers into a single cable. This is usually<br />

through Frequency Division Multiplexing. Broadb<strong>and</strong> technology<br />

permits traffic on several networks to coexist on a single cable.<br />

Page 15 of 106<br />

BRSS - Brigade Remote Subscriber Service<br />

BS - bit select address<br />

BS - broadcast source<br />

BSA - basic service (serving) agreement<br />

BSA - brigade support area<br />

BSAM - basic sequential access method<br />

BSBN - baseb<strong>and</strong><br />

BSBP - Block-Step-Back Parameter<br />

BSC - binary synchronous communications<br />

BSC - BLACK station clock<br />

BSD - Berkeley Software Distribution<br />

BSE - basic service element<br />

BSF - bit scan forward<br />

BSI - British St<strong>and</strong>ards Institute<br />

BSM - battlefield spectrum management<br />

BSN - Brigade Subscriber Node<br />

BSO - basic security option<br />

BSO - brigade/battalion signal officer<br />

BSR - bit scan reverse<br />

BSS - broadcasting satellite service<br />

BSU - bulk storage unit<br />

BSYNC - binary synchronous communications<br />

BT - bit test<br />

BTB - branch target buffer<br />

BTC - bit test <strong>and</strong> complement<br />

BTL - backplane transceiver logic<br />

BTN - See Billing Telephone Number.<br />

btry - battery<br />

BUCS - backup computer system<br />

BUF - buffer<br />

Buffer - A temporary storage space in RAM to compensate for<br />

varying data transmission rates.<br />

Bundle - The term that describes a group of 64 kbps time slots in the<br />

T1/T3 facility. Bundles are supported on the TRK-3 module.<br />

Bundle - ID - Bundles are identified through the Operator Interface<br />

by the card ID <strong>and</strong> an arbitrary number preceded by the letter B<br />

<strong>and</strong> an optional node ID.<br />

Bus - An electrical path connecting circuit elements, printed circuit<br />

board assemblies, <strong>and</strong> other system components. The TBus is<br />

used to carry user data, a CBus is used to carry signaling <strong>and</strong><br />

control information between the modules, <strong>and</strong> an XBus is used to<br />

connect the card shelves.<br />

Bus - Extender - A card that distributes the clock <strong>and</strong> data signals for<br />

the expansion shelf of the 24-slot Promina 400. The bus extender<br />

set consists of the bus extender, bus repeater, <strong>and</strong> two bus<br />

extender cables.<br />

Bus - Repeater - A card for the 24-slot Promina 400 that relays clock<br />

<strong>and</strong> data signals to the expansion shelf.<br />

Bus - Terminator Board - On the Promina 800 <strong>and</strong> 400 nodes this<br />

board provides the termination point for buses on a st<strong>and</strong>ard<br />

shelf.<br />

Business - Office - The part of the phone company where you call if<br />

they mess up your bill, to report problems, <strong>and</strong> to order service.<br />

Not necessarily technically literate.

---

BV - battlefield visualization (Army)<br />

BVTC - battlefield video teleconferencing<br />

BW - b<strong>and</strong>width<br />

BWLP - black <strong>and</strong> white laser printer<br />

BWM - block-write mode<br />

BWM - b<strong>and</strong>width manager<br />

BWOFS - battlefield weather observation & forecast system<br />

BX - (Bus Extender) Module - This module (in each STS or EXS<br />

shelf in a Promina 800) functions as the communication link from<br />

the STS shelves (or EXS shelves) to the HSS-2 shelf. It is the<br />

interface between the SX module <strong>and</strong> the STS or EXS shelves<br />

<strong>and</strong> extends the bus from the SX module to the STS <strong>and</strong> EXS<br />

shelves.<br />

Byte - A sequence of adjacent binary digits operated upon as a unit<br />

<strong>and</strong> usually shorter than a computer word. A group of eight bits<br />

makes a byte. Typically, a 16-bit word is itself divided up for<br />

h<strong>and</strong>ling. A byte is usually the smallest addressable unit of<br />

information in memory.<br />

C - C Programming Language<br />

C - confidential<br />

C<br />

C-FAST - counter-force automated surveillance & targeting (USAF)<br />

C-SIGINT - counter-signals intelligence<br />

C-LAN - Communications-LAN<br />

C-E - communications-electronics<br />

C - clear<br />

C-Bit - Parity Format - This arrangement of the control bits in the<br />

basic M-frame is to enhance the current asynchronous DS3<br />

datastream functionality. The 21 C-bits are defined to provide<br />

improved network maintenance <strong>and</strong> monitoring, or DS3 path<br />

monitoring <strong>and</strong> implementation of FEBE as well as providing for<br />

data link applications. Contrast with M13 format used for DS1 to<br />

DS3 multiplexing.<br />

C-E - communications-electronics<br />

C-EMS - Communications-Electronic Management System<br />

C&A - certification & accreditation<br />

C&D - cover <strong>and</strong> deception<br />

c/kT - ratio of average carrier power to noise power spectral density<br />

C/Ku - commercial satellite communications frequency b<strong>and</strong>s<br />

C/S/A - CINC, Service, or agency<br />

C2 - comm<strong>and</strong> <strong>and</strong> control<br />

C2 - configuration 2<br />

C2 - uplink network control<br />

C2BFMAA - comm<strong>and</strong> <strong>and</strong> control battlefield function mission area<br />

analysis<br />

C2CAMP - comm<strong>and</strong> <strong>and</strong> control concept <strong>and</strong> management plan<br />

C2CM - C2 countermeasures<br />

C2DA - comm<strong>and</strong> <strong>and</strong> control decision aid<br />

C2E - comm<strong>and</strong> <strong>and</strong> control element<br />

C2IPS - comm<strong>and</strong> <strong>and</strong> control conformation processing system<br />

Page 16 of 106<br />

C2MAA - comm<strong>and</strong> <strong>and</strong> control mission area analysis<br />

C2MADP - comm<strong>and</strong> <strong>and</strong> control mission area development plan<br />

C2MAMP - comm<strong>and</strong> <strong>and</strong> control mission area materiel plan<br />

C2MUG - comm<strong>and</strong> <strong>and</strong> control microcomputer users group<br />

C2P - comm<strong>and</strong> <strong>and</strong> control protect<br />

C2T2 - Commercial Communications Technology Test Bed<br />

C2V - comm<strong>and</strong> <strong>and</strong> control vehicle<br />

C2W - comm<strong>and</strong> <strong>and</strong> control warfare<br />

C2WC - Comm<strong>and</strong> <strong>and</strong> Control Warfare Comm<strong>and</strong>er (Navy)<br />

C3 - comm<strong>and</strong>, control <strong>and</strong> consultation (NATO)<br />

C3 - comm<strong>and</strong>, control, <strong>and</strong> communications<br />

C3 - downlink network control<br />

C3CM - C3 countermeasures (now C2CM or C2W)<br />

C3EVAL - comm<strong>and</strong>, control, <strong>and</strong> communications evaluation model<br />

C3I - comm<strong>and</strong>, control, communications <strong>and</strong> intelligence<br />

C3I - comm<strong>and</strong>, control, communications <strong>and</strong> information (UK)<br />

C3I - Comm<strong>and</strong>, Control, Computers, <strong>and</strong> Intelligence<br />

C3S - comm<strong>and</strong>, control, communications system<br />

C4 - comm<strong>and</strong>, control, communications, <strong>and</strong> computers<br />

C4I - Comm<strong>and</strong>, Control, Communications, Computer <strong>and</strong><br />

Intelligence<br />

C4I2 - comm<strong>and</strong>, control, communications, computing, intelligence<br />

<strong>and</strong> information systems<br />

C4IFTW - Comm<strong>and</strong>, Control, Communications, Computers, <strong>and</strong><br />

Intelligence for the Warrior<br />

C4ISR - C4 Intelligence, Surveillance <strong>and</strong> Reconnaissance<br />

C4ISR - comm<strong>and</strong>, control, communications, computers,intelligence,<br />

surveillance, <strong>and</strong> reconnaissance<br />

C6 - Combined Comm<strong>and</strong>, Control, Communications, <strong>and</strong> Computer<br />

Systems Directorate<br />

CA - Certification (certificate) Authority<br />

CA - III Challenge Athena Phase III<br />

CAAM - computer assisted artillery meteorology<br />

CAAP - Critical Asset Protection Program<br />

CAB - combat air base<br />

Cabinet - An equipment enclosure, usually with front <strong>and</strong> rear doors.<br />

St<strong>and</strong>ard EIA equipment cabinet that houses card shelves, power<br />

supplies, alarm panel, fans, power distribution units, T1 jackfields.<br />

CAC - connection admission control<br />

CAC - Common Access Cards<br />

CAC2 - combined arms comm<strong>and</strong> <strong>and</strong> control (Army)<br />

CACSD - computer-aided control system design<br />

CAD - computer-aided design<br />

CAD - collective address designators<br />

CADCI - common air defense communications interface CAP control<br />

<strong>and</strong> alarm panel<br />

CADD - computer aided design <strong>and</strong> drafting<br />

CADS - computer anomaly detection system<br />

CAE - common applications environment<br />

CAE - computer-aided engineering

---

CAF - Combat Air Force<br />

CAFED - computer-aided file of engineering drawings<br />

CAFMS - computer assisted force management system<br />

CAGE - commercial <strong>and</strong> government entity<br />

CAI - computer-aided instruction<br />

CAIRN - collaborative advanced internet research network<br />

CAIS - common APSE interface set<br />

CAL - computer-assisted learning<br />

CALC - customer access line charges<br />

Call - Manager - Controls busy/unbusy for voice calls.<br />

Call - Priority - The priority assigned to each origination port to<br />

establish the order in which calls are reconnected, It also defines<br />

which calls can or cannot be placed when b<strong>and</strong>width has been<br />

reserved.<br />

Call - Setup - The process of dynamically allocating b<strong>and</strong>width <strong>and</strong><br />

establishing logical circuits that permit a voice or data call<br />

connection.<br />

Call - Summary - Contains a summary of calls in progress on a<br />

node, link, or card.<br />

Call - The logical port-to-port connection or circuit (also referred to<br />

as a channel) built between two ports by the network, including<br />

the origination node, pass-through nodes, <strong>and</strong> the destination<br />

node.<br />

Called - Party Address - This is the destination phone number of a<br />

call delivered to a switch. For instance this could be the CLID of a<br />

call delivered to a PBX using DID or two-way trunks. See also<br />

DID.<br />

CALM - computer aided load manifest (manifesting) system<br />

CALS - computer-aided acquisition <strong>and</strong> logistics support (old)<br />

CALS - continuous acquisition <strong>and</strong> life cycle support (new)<br />

CAM - communication access method<br />

CAM - computer-aided manufacturing<br />

CAM - content-addressable memory<br />

CAM - configurable access module<br />

CAMA - centralized automatic message accounting<br />

CAMEO - Computer-Aided Management of Emergency Operations<br />

(EPA)<br />

CAMIS - Customs accounting <strong>and</strong> management information system<br />

(Customs)<br />

CAMP - comm<strong>and</strong> ADP modernization program<br />

CAMP - common Ada missile package<br />

CAMP - computer-assisted message preparation<br />

CAMPS - computer-aided mission planning system<br />

CAMPS - compartmented All Source Analysis System<br />

messageprocessing system<br />

CAN - customer access network<br />

CAN - campus area network<br />

CAOC - Combined Air Operations Center (NATO)<br />

CAOW - cable orderwire<br />

CAP - carrierless amplitude phase (modulation)<br />

CAP - Channel Access Protocol<br />

CAP - competitive access provider<br />

CAP - communications-electronics accommodation program<br />

Page 17 of 106<br />

CAP - Connection Approval Program<br />

CAP - Control <strong>and</strong> Alarm Panel<br />

Capacity - The amount of communications traffic a circuit,<br />

multiplexer, or network system can support. Capacity is<br />

determined by the available b<strong>and</strong>width <strong>and</strong> the ability to maximize<br />

b<strong>and</strong>width use.<br />

CAPE - computer-aided parametric estimating<br />

CAPI - cryptographic application programming interfaces<br />

CAPS - communications/aural protective system<br />

CAPS - corporate accounts processing system (IRS)<br />

CAR - committed access rate<br />

Card - A printed circuit board assembly that is located in a card slot<br />

on a shelf (also referred to as a module). Typically a module has<br />

a front <strong>and</strong> rear interface card. The front card contains the logic<br />

associated with the card. The card is identified by a card ID.<br />

Card - ID - Cards are identified through the Operator Interface by a<br />

number from 0 to 127 preceded by the letter "C" <strong>and</strong> an optional<br />

node ID (for example, N2C26). The card number refers to the<br />

actual card slot in which a card resides (or will reside) in the card<br />

shelf.<br />

Card - Parameters - See parameters.<br />

Card - Shelf - Card shelf is a chassis that contains front <strong>and</strong> rear<br />

cards <strong>and</strong> a backplane. The cards on the shelf are connected by<br />

buses. The Promina 800 HSS-2 shelf has 16 card slots, the STS<br />

shelf has 12 card slots, <strong>and</strong> the EXS shelf has 16 card slots; the<br />

Promina 400 has 12 card slots <strong>and</strong> the expansion unit has 12<br />

card slots; <strong>and</strong> the Promina 200 has 8 card slots.<br />

Card - Slots - Guide rails, at the top <strong>and</strong> bottom of the card shelf<br />

interior, provide slots for inserting cards into the shelf.<br />

CARDS - central archive for reusable defense software<br />

CARP - contingency alternate route plan<br />

Carrier - Detect Circuitry - Circuits that detect a carrier signal to<br />

determine if a transmission is about to occur.<br />

Carrier - Signal - A continuous sine-wave signal at a frequency that<br />

easily passes over the communications medium. It is a pipeline<br />

that allows data to move from DCE to DCE, with the carrier<br />

modulated in order to send data.<br />

CARS - cable television relay service (station)<br />

CARS - contingency airborne reconnaissance system (USAF)<br />

CART - compact array radio-location technique<br />

CART - computer analysis <strong>and</strong> response team (FBI)<br />

CARTS - common Ada run-time system<br />

CAS - comm<strong>and</strong> automation system<br />

CAS - crew assignment sheet<br />

CAS - Task (Channel Associated Signaling) Task - The CAS task<br />

implements all signaling protocols <strong>and</strong> conversions for PRC <strong>and</strong><br />

TMCP modules. The CAS task provides support for signaling<br />

protocol SSDC5-A <strong>and</strong> E&M, as described in British Telecom<br />

Publication BTNR 187.<br />

CASE - computer-aided (assisted) systems (software) engineering<br />

CASES - capability assessment expert system<br />

CASL - CSCE automated software load<br />

CASS - consolidated automated support system<br />

CAST - computer-aided software testing<br />

CAT - computer-assisted training or technology<br />

CATC - carrier air traffic control center<br />

CATF - Comm<strong>and</strong>er Amphibious Task Force

---

CATIA - computer graphic aided three-dimensional application<br />

CATIS - computer-aided tactical information system<br />

CATS - consolidated asset tracking system (Justice)<br />

CAU - controlled access unit<br />

CAU - crypto authorization (ancillary) unit<br />

CAVE - Cellular Authentication of Voice Encryption<br />

CAW - certification authority workstation<br />

CAWG - Communications Architecture Working Group<br />

CB - common battery<br />

CBAC - Context Based Access Protocol<br />

CBC - cipher block chaining<br />

CBCS - Combat Communications Squadron<br />

CBCS - common baseline circuit switch<br />

CBCS - common battery circuit switching<br />

CBEMA - Computer <strong>and</strong> Business Equipment Manufacturers<br />

Association<br />

CBFS - cesium beam frequency st<strong>and</strong>ard<br />

CBI - computer based instruction<br />

CBLTU - common battery line termination unit<br />

CBMS - computer-based mail system<br />

CBR - case based reasoning<br />

CBR - continuous (constant) bit rate<br />

CBS - corps battle simulation<br />

CBT - computer based training<br />

CBT - crossbar transceiver<br />

cbt - combat<br />

CBU - Conference Bridge Unit<br />

CBus - (Control Bus) - The CBus carries signaling <strong>and</strong> control<br />

information between modules.<br />

CBX - computer branch exchange<br />

CC - communications central<br />

CC - common criteria<br />

CC - Combatant Comm<strong>and</strong>er<br />

CC/S/A - Combatant Comm<strong>and</strong>er/Service/Agency<br />

CCA - Circuit Card Assembly<br />

CCB - (Call Control Block) - The basic data structure that is used by<br />

the call controller to identify <strong>and</strong> describe data circuits. A Call In<br />

Progress (CIP) block forms an extension to the CCB during circuit<br />

construction. This is discarded upon circuit establishment.<br />

CCC - CINC Comm<strong>and</strong> Complex<br />

CCC - comm<strong>and</strong> <strong>and</strong> control center<br />

CCC - critical control circuit<br />

CCD - charged-coupled device<br />

CCDEL - Comm<strong>and</strong> <strong>and</strong> Control Demonstration Laboratory<br />

CCDG - Comm<strong>and</strong>er, Cruiser Destroyer Group<br />

CCDL - cross channel data link<br />

CCE - configurable crypto engine<br />

CCEP - commercial communications security endorsement program<br />

CCES - contingency communications extension switch<br />

CCF - control communications facility<br />

CCI - computer crime Iinitiative<br />

CCI - Computer Crime Investigator<br />

CCI - controlled cryptographic item<br />

CCI - controlled COMSEC item<br />

CCIR - comm<strong>and</strong>er’s critical information requirements<br />

CCIR - consultative committee of international radio<br />

CCIS - comm<strong>and</strong> center information system<br />

CCIS - comm<strong>and</strong>, control <strong>and</strong> information system<br />

CCIS - 1. Common Channel Interoffice Signaling. A signaling system<br />

where network information such as address <strong>and</strong> routing<br />

information are h<strong>and</strong>led externally to the actual communications<br />

(voice) path. SS7 (Signaling System 7) is the internationally<br />

st<strong>and</strong>ardized CCIS system. Deployment of CCIS increased<br />

efficiency since no communications (voice) channels are used<br />

merely to report an "all trunks busy" or "far end busy" conditions.<br />

It also decreased toll fraud substantially since it removed the<br />

potential for access to the signaling information that was inherent<br />

to in-b<strong>and</strong> signaling schemes. CCIS also enables CLASS features<br />

as well as sophisticated re-routing features for "intelligent<br />

network" applications. See also In B<strong>and</strong> Signaling. 2. common<br />

channel interswitch signaling<br />

CCITT - (Consultative Committee for International Telegraph <strong>and</strong><br />

Telephone) - This international organization recommends<br />

st<strong>and</strong>ards for telecommunications. Also see ITU.<br />

CCIU - CEF control interface unit<br />

CCL - connection control language<br />

CCL - continuous communications link<br />

CCL - communications-computer link<br />

CCN - common control node<br />

CCOR - corps COMSEC office of record<br />

CCOW - control channel order wire<br />

CCP - Caneware control processor<br />

CCP - contingency communications package<br />

CCPC - Civil Communications Planning Committee (NATO)<br />

CCPDS - comm<strong>and</strong> center processing <strong>and</strong> display system<br />

CCPL - comm<strong>and</strong> <strong>and</strong> control product line (USAF)<br />

CCPS - contingency communications parent switch<br />

CCR - call completion rate<br />

CCS - combat control system<br />

CCS - comm<strong>and</strong> & control systems<br />

CCS - constellation control stations<br />

CCS - (Common Channel Signaling) - 1. A channel used to carry<br />

signaling information via LAPD (link access procedure/D<br />

channel). 2. communications control set<br />

CCSA - common control switching arrangement<br />

CCSC - Commercial Computer Security Centre (UK)<br />

CCSD - control communications service designator<br />

CCSIL - comm<strong>and</strong> <strong>and</strong> control simulation interface language<br />

CCSK - cyclic (cycle) code shift keying<br />

CCSQ - combat communications squadron<br />

CCSS - commodity comm<strong>and</strong> st<strong>and</strong>ard system<br />

CCTC - Comm<strong>and</strong> <strong>and</strong> Control Technical Center<br />

CCTT - Close Combat Tactical Trainer<br />

Page 18 of 106

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CCTT - comm<strong>and</strong> <strong>and</strong> control team trainer<br />

CCTV - closed circuit television<br />

CCU - common control unit<br />

CCU - combined controller unit<br />

CCW - cable cutoff wavelength<br />

CD - carrier detect<br />

CD - collision detection<br />

CD - color display<br />

CD - compact disk<br />

CD-I - compact disk-interactive<br />

CD-MO - compact disk-magneto optical<br />

CD-R - compact disk-recordable<br />

CD-RDx - dompact disk - read only memory data exchange st<strong>and</strong>ard<br />

CD-ROM - compact disk - read only memory<br />

CD-RTOS - compact disk - real time operating system<br />

CD-V - compact disk - video<br />

CD-WO - compact disk - write once<br />

CD-XA - compact disk - extended architecture<br />

CD-R - compact disk recordable<br />

CD - channel designator<br />

CD - compact disk<br />

CD - compressed dial<br />

CDA - compound document architecture<br />

CDA - computer design activity<br />

CDA - conditioned diphase adapter<br />

CDC - Conditioned Diphase Converter<br />

CDC - central directory component<br />

CDD - common data dictionary<br />

CDDI - copper distributed data interface<br />

CDE - common data environment<br />

CDE - common desktop environment<br />

CDF - combined distribution frame<br />

CDGS - conditioned diphase group signal<br />

CDI - Conditioned Diphase<br />

CDIF - CASE data interchange facility<br />

CDIG - commercial digital<br />

CDIS - counter drug intelligence system<br />

CDL - computer design language<br />

CDL - compressed dialing list<br />

CDM - cable driver modem<br />

CDM - conditioned diphase modulation<br />

CDMA - code division multiple access<br />

CDMGB - Cable Driver Modem Group Buffer<br />

CDMS - computer-aided design data management system<br />

CDN - consolidated data network (Treasury) (Now TCS)<br />

CDN - compressed dial number<br />

CDOS - concurrent disk operating system<br />

Page 19 of 106<br />

CDP - 1. conditioned diphase; 2. Cisco Discovery Protocol<br />

CDPD - cellular digital packet data<br />

CDPSK - coherent differential phase-shift keying<br />

CDR - call detail recording<br />

cdr - comm<strong>and</strong>er<br />

CDS - Compact Digital Switch<br />

CDS - call directory service<br />

CDS - combat direction system<br />

CDS - comm<strong>and</strong> destruct system<br />

CDS - communications deception unit<br />

CDS - compact disk switches<br />

CDSF - Combat Developer Software Facility<br />

CDSS - comm<strong>and</strong>ers decision support system<br />

CDT - computer directed training<br />

CDU - Control Display Unit<br />

CDV - compressed digital video<br />

CE - cache enable<br />

CE - communications element<br />

CE - communications-electronics<br />

CEC - computer engineering center<br />

CEC - cooperative engagement capability (Navy)<br />

CEC - Central Equipment Cabinet<br />

CECOM - Communications <strong>and</strong> Electronics Comm<strong>and</strong> (Army)<br />

CEF - common equipment facility<br />

CEF - COMSEC equipment facility<br />

CEG - communications equipment group<br />

CEG - Common Equipment Group<br />

CEI - communications/electronics intelligence<br />

CEI - comparatively efficient interconnection<br />

CEI - conducted electromagnetic interference<br />

CEIS - corporate executive information systems<br />

CEIT - Center of Excellence for Information Technology<br />

CellXpress - Module - This module is an ATM access device<br />

supporting T1, E1, T3, <strong>and</strong> E3 trunk interfaces. It multiplexes<br />

different sources of Promina traffic (voice, video, <strong>and</strong> data) for<br />

transport across an ATM network.<br />

CELP - code-excited linear prediction<br />

CEM - Control Electronics Module<br />

CEMT - Center for Electronic Messaging Technologies (GSA)<br />

cen - center<br />

CENT - US Central Comm<strong>and</strong><br />

CENTAF - Air Force Component Central Comm<strong>and</strong><br />

CENTCOM - US Central Comm<strong>and</strong><br />

Central - Office - See CO.<br />

CEOI - communications-electronics operating instruction<br />

CEP - civil emergency planning<br />

CEP - cable entrance panel<br />

CEPT - (Committee of European Postal <strong>and</strong> Telecommunications)<br />

Module - This module is an internodal trunk operating at 2048

---

kbps (European data rates). It supports HDB3 line coding, which<br />

meets the ones density without data corruption. This module<br />

cannot be used for port connection to a channel bank.<br />

CERIAS - Center for Education <strong>and</strong> Research in Information<br />

Assurance <strong>and</strong> Security<br />

CERT - Computer Emergency Response Team<br />

CES - circuit emulation st<strong>and</strong>ard<br />

CESA - Cyberspace Electronic Security Act<br />

CESE - communications equipment support element<br />

CESG - Communications Electronics Security Group (UK)<br />

CESG - communications equipment support group<br />

CESO - Communications-Electronics Staff Officer<br />

CEWI - combat electronic warfare intelligence<br />

CEWS - communications early warning system<br />

CF - central facility<br />

CFAA - Computer Fraud <strong>and</strong> Abuse Act<br />

CFD - configure fill device<br />

CFE - Caneware front end<br />

CFPD - color flat panel display<br />

CFRP - conceptual rramework for reuse planners<br />

CG - communications group<br />

CGA - color graphics adapter<br />

CGI - common gateway interface<br />

CGI - computer generated interface<br />

CGM - computer graphics metafile<br />

CGRP - common hardware reference platform<br />

CGS - common ground station<br />

CGSC - Comm<strong>and</strong> <strong>and</strong> General Staff College<br />

CGTS - Coast Guard telecommunications system<br />

CGWS - Coast Guard work station<br />

CH - channel<br />

CHAALS - communications high accuracy airborne location system<br />

chan - channel<br />

Channel - An electronic communications path, usually of 4,000 Hz<br />

(voice) b<strong>and</strong>width; physical or logical path allowing the<br />

transmission of information. Generally, channel refers to an<br />

individual DS0B Circuit with a DS0B bundle. Also see port.<br />

Channel - Bank - Equipment used to connect to digital transmission<br />

facilities. In the transmit direction, the channel bank performs<br />

sampling, time-division multiplexing, compression, <strong>and</strong> encoding<br />

in binary format. In the receive direction, the channel bank<br />

performs decoding, exp<strong>and</strong>ing, <strong>and</strong> gating. The channel bank<br />

must also detect <strong>and</strong> transmit signaling information for each<br />

channel, transmit framing information to the receiving terminal so<br />

that the time slots allocated to each channel can be identified, <strong>and</strong><br />

transmit alarm signals to the far terminal during a specified alarm<br />

condition.<br />

Channel - Capacity - The maximum information transmission rate<br />

possible through a channel at a specified BER.<br />

Channel - Time Slot - In time-division multiplexing, a time slot<br />

starting at a particular phase in each primary frame <strong>and</strong> allocated<br />

to a channel for transmitting pulse-coded voice or data signal. A<br />

st<strong>and</strong>ard PCM system has 24 channel time slots.<br />

CHAP - Challenge H<strong>and</strong>shake Authentication Protocol<br />

CHAR - character<br />

CHBDL - common high b<strong>and</strong>width data link<br />

CHCS - composite health care system<br />

Checksum - The sum of a group of data items, associated with the<br />

group, for checking purposes.<br />

CHEMO - chemical officer<br />

CHIMPS - Chirpsounder Integrated MUF Prediction System<br />

CHIPs - correlation of hot IPs<br />

CHISSA - center for high integrity system software assurance<br />

CHK - check<br />

CHNG - change<br />

CHNL - channel<br />

Choke - Exchange - A telephone exchange which is assigned to<br />

Radio <strong>and</strong> TV stations, Promoters, <strong>and</strong> other users which will be<br />

receiving large numbers of simultaneous calls. The idea is to<br />

group all of these users on a single exchange so when all routes<br />

into that exchange are in use "normal" users (on other<br />

exchanges) will not experience blocking of incoming or outgoing<br />

calls. Trunks from other local exchanges into the choke exchange<br />

are deliberately limited to just a few paths so callers will get an "all<br />

trunks busy" instead of completely blocking their local exchange.<br />

However, when one of the choke exchange users experiences a<br />

large number of calls (as when your station runs a contest) the<br />

other choke exchange users will be blocked because all trunks<br />

into the choke exchange will be busy. See Blocking <strong>and</strong><br />

Concentration<br />

CHPC - center for high-performance computing<br />

CHS - common hardware <strong>and</strong> software<br />

CHUB - controlling HUB<br />

CI - counterintelligence<br />

CI - competitive intelligence<br />

CI-library - cryptographic interface library<br />

CI - (Customer Installation) - Equipment <strong>and</strong> wiring at the customer's<br />

location on the customer side of the Network Interface (NI).<br />

CI/SCM - counterintelligence <strong>and</strong> security countermeasures<br />

CIAC - Computer Incident Advisory Council (capability)<br />

CIAO - Critical Infrastructure Assurance Office<br />

CIAP - combat intelligence architecture plan<br />

CIB - communications information bulletins<br />

CIC - carrier identification codes<br />

CIC - combat information center<br />

CIC - Committee on Information <strong>and</strong> Communications<br />

CIC - communication interface controller<br />

CIDF - Common Intrusion Detection Framework<br />

CIDOS - COMSEC Interservice Depot & Overhaul St<strong>and</strong>ard<br />

CIDR - classless interdomain routing<br />

CIDSE - consolidated integrated development support environment<br />

CIDSS - CINCPACAF integrated decision support system<br />

CIFAX - ciphered facsimile<br />

CIFS - common Internet file system<br />

CIG - communications interface group<br />

CIGSS - common imagery ground/surface system<br />

CIHEP - Counterintelligence <strong>and</strong> Human Intelligence Equipment<br />

Program<br />

CIK - crypto ignition key<br />

Page 20 of 106

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CILS - Commerce Information Locator Service<br />

CILS - continuous integrated logistics system<br />

CIM - Center for Information Management<br />

CIM - computer integrated manufacturing<br />

CIM - corporate information management<br />

CIM - Crypto Interface Module<br />

CINC - Comm<strong>and</strong>er-in-Chief<br />

CINC - comm<strong>and</strong>er in chief of a combatant comm<strong>and</strong><br />

CINCPAC - FLT - Comm<strong>and</strong>er-in-Chief, Pacific Fleet<br />

CINEMA - commerce, internet, electronic mail access (GSA/FTS)<br />

CIO - Central Imagery Office (now part of NIMA)<br />

CIO - Chief Information Officer<br />

CIOCS - communication input/output control system<br />

CIOSP - Chief Information Officer Solutions <strong>and</strong> Partners (NIH)<br />

CIP - consolidated imagery program<br />

CIP - communications improvement program<br />

CIP - communications implementation plan<br />

CIP - combat information processor<br />

CIP - Critical Infrastructure Protection<br />

CIP - critical intelligence parameters<br />

CIP - communications interface processor<br />

CIPO - CINC Interoperability Program Office<br />

CIPSO - commercial Internet protocol security option<br />

CIPSU - CIP pseudoline<br />

CIPWG - Critical Infrastructure Protection Working Group<br />

CIR - committed information rate<br />

CIR - Central Intelligence Report<br />

CIRC - central information reference <strong>and</strong> control system<br />

Circuit - A communications path between two points.<br />

Circuit - Switched Data - See CSD.<br />

Circuit - Switching - A system where a dedicated channel is<br />

allocated to the users of that call for the duration of that call. That<br />

channel is allocated for the duration of the call regardless if<br />

information is being transmitted at any given moment. B<strong>and</strong>width<br />

through the channel is fixed, at no time may this b<strong>and</strong>width be<br />

exceeded. If this b<strong>and</strong>width is not used it is wasted. While<br />

inherently inefficient, the dependable <strong>and</strong> reliable nature of circuit<br />

switching makes it ideally suited to real-time voice <strong>and</strong><br />

audio/video conferencing applications. This is in stark contrast to<br />

systems where statistical multiplexing is used. See Statistical<br />

Multiplexing<br />

CIREN - Crash Injury Research <strong>and</strong> Engineering Network (NHTSA)<br />

CIRG - Critical Incident Response Group (FBI)<br />

CIRK - common interswitch rekey key<br />

CIRK - common interswitch rekey<br />

CIRT - computer incident response team<br />

CIRV - common interswitch rekeying variable<br />

CIS - combat intelligence system<br />

CIS - communications <strong>and</strong> information systems (NATO)<br />

CIS - CASE integration services<br />

CIS - Combat Intelligence System<br />

Page 21 of 106<br />

CIS - computer aided system engineering integration services<br />

CISA - C4I Integration Support Activity<br />

CISC - complex instruction set computer<br />

CISL - common intrusion specification language<br />

CISO - Chief Information Security Officer<br />

CISO - counterintelligence staff officer<br />

CISRV - common interswitch rekey variable<br />

CISS - Center for Information Systems Security<br />

CIT - combined interrogator/transponder<br />

CIT - computer integrated telephony<br />

CITA - Center on Information Technology Accommodation (GSA)<br />

CITAC - Computer Investigations <strong>and</strong> Threat Assessment Center<br />

(FBI)<br />

CITEL - Inter-American Telecommunications Commission<br />

CITIS - Contractor Integrated Technical Information Services<br />

CITS - combat information transport system (USAF)<br />

CIU - communications interface unit<br />

CIWE - Center for Information Warfare Excellence<br />

CIX - Commercial Internet Exchange<br />

CJA - Civil/Judge Advocate<br />

CJCS - Chairman of the Joint Chiefs of Staff<br />

CJCSI - Chairman of the Joint Chiefs of Staff Instruction<br />

CJCSM - Chairman of the Joint Chiefs of Staff Manual<br />

CJIS - criminal justice information services (systems) (FBI)<br />

CJLI - comm<strong>and</strong> job language interpreter<br />

CJTF - Comm<strong>and</strong>er, Joint Task Force<br />

CK - check<br />

CKA - chief knowledge architect<br />

CKL - compromised key list<br />

CKM - COMSEC key manager<br />

CKT - circuit<br />

ckv - common key variable<br />

CLAR - channel local address register<br />

CLASS - Custom Local Area Signaling Services. A variety of<br />

enhanced features (usually on analog lines) that take advantage<br />

of the ability of modern SS7 technology°Øs ability to transmit<br />

information about the calling party. CLASS includes such features<br />

as Caller ID, Automatic Callback, Call Trace (initiated by<br />

subscriber), Selective Call Rejection, etc.<br />

Class - Of Service - Consists of, <strong>and</strong> determined by, four parameters<br />

assigned to each port: (1) call setup priority; (2) compression<br />

level; (3) preempt priority, <strong>and</strong> (4) routing requirement.<br />

CLB - configurable logic block<br />

CLCC - combined loop core card<br />

CLCC - combined loop controller card<br />

CLD - cable length demodulation<br />

Clear - Channel - A 64 kbps channel (DS0) using out-of-b<strong>and</strong><br />

signaling, leaving the entire 64K for data. A clear channel uses no<br />

A/B bit signaling information, displayed when querying a port<br />

configured for clear-channel operation. Clear-channel operation is<br />

used by PRC <strong>and</strong> TMCP ports which use BEZS line coding. Also<br />

see BEZS.

---

Clear - Channel Bundle - A group of one or more DS0s installed on a<br />

TRK-3 span-mode card. Clear channel bundles provide<br />

connectivity between the Promina or IDNX node <strong>and</strong> off-net PX<br />

platform ports.<br />

CLEC - Competitive Local Exchange Carrier. Your local telephone<br />

service provider who is one of the new-generation providers<br />

rather than a RBOC or Independent. A CLEC is really just an<br />

Independent, albeit one formed after the divestiture of AT&T. See<br />

LEC.<br />

CLEF - commercially licensed evaluation facility<br />

CLF - Comm<strong>and</strong>er L<strong>and</strong>ing Force<br />

CLI - call-level interface<br />

CLI - calling line identification<br />

CLID - Calling Line Identification. This is the ISDN <strong>and</strong> SS7<br />

equivalent of Caller ID; I.E. the number of the calling party. See<br />

also ANI.<br />

clk - clock<br />

CLM - cable length demodulation<br />

CLNP - Connectionless Network Protocol<br />

CLNS - connectionless network service<br />

Clock - An oscillator-generated signal that provides a timing<br />

reference for a transmission link; it controls timing of functions<br />

such as sampling interval, signaling rate, <strong>and</strong> duration of signal<br />

elements. Clocking is accomplished by phase locking to the<br />

appropriate reference derived from ports he or trunks.<br />

Clock - Status - Contains information on where the clock information<br />

is obtained for the node.<br />

CLR - clear<br />

CLS - crosslink subsystem<br />

CLSA - COMSEC logistics support activity<br />

CLSU - communications security logistics support unit<br />

CLTP - connectionless transport protocol<br />

CLTS - connectionless transport service<br />

CLU - comm<strong>and</strong> <strong>and</strong> launch unit<br />

CLUI - comm<strong>and</strong> line user interface<br />

Cluster - Controller - A device that interfaces multiple terminals with<br />

data communications facilities associated with central, major<br />

computer centers. Commonly used in multipoint synchronous<br />

data networks involving distributed transaction processing <strong>and</strong><br />

host-controlled, centralized network architectures, such as SNA.<br />

CLUT - color lookup tables<br />

CM - configuration management<br />

CM - countermeasures<br />

CM - control modem<br />

CM - communication modem<br />

CM - crypto module<br />

cm - centimeter<br />

CM - control monitor<br />

CMA - control monitor alarm<br />

CMAA - communications mission area analysis<br />

CMC - CDI Modem Card<br />

CMC - computer-mediated communication [Internet]<br />

CMCS - COMSEC material control system<br />

CMD - comm<strong>and</strong><br />

Page 22 of 106<br />

CMDSA - COMSEC Materiel Direct Support Activity<br />

CMI - computer managed instruction<br />

CMI - (Coded Mark Inversion) - A CCITT line coding technique<br />

specified for the fourth-level CCITT multiplex signal. CMI is also<br />

used in other applications, notably in Japanese DS1 level<br />

systems. CMI is similar to digital biphase coding, in that an<br />

abundance of signal transitions exist, <strong>and</strong> there is no DC energy<br />

in the signal. Additionally there is no limit on the number of<br />

consecutive zeros allowed in the bit stream. CMI encodes ones<br />

(marks) as bipolar NRZ level/AMI; zeros are encoded as a halfcycle<br />

square wave of one particular phase. See waveform coding.<br />

CMIO - communications security material issuing office<br />

CMIP - common management information protocol<br />

CMIS - common management information system (service)<br />

CMIS/P - common management information services <strong>and</strong> protocols<br />

CMISE - Corps Military Intelligence Support Element (Army)<br />

CML - computer managed learning<br />

CMM - capability maturity model<br />

CMM - core memory module<br />

CMMS - computerized maintenance management software<br />

CMOS - cargo movement operations system (USAF)<br />

CMOS - complementary metal oxide silicon<br />

CMP - communications message processor<br />

CMPR - common-mode rejection ratio<br />

CMRS - commercial mobile radio services<br />

CMS - Combat Mission Simulator<br />

CMS - comm<strong>and</strong> management system<br />

CMS - common mapping system (USAF)<br />

CMS - combat mission simulator<br />

CMS - configuration management system<br />

CMSCD - Communication Mode Selector Control Device<br />

CMST - collection management support tools<br />

CMT - CarryMast Telescopic Mast<br />

CMTC-IS - combat maneuver training center instrumentation system<br />

(Army)<br />

CMTS - cable modem termination system<br />

CMU - central management unit<br />

CMW - compartmented mode workstation<br />

CMWS - common missile warning system<br />

CMX - circuit multiplexer<br />

CMY - cyan-magenta-yellow (color model)<br />

CN/CMS - counter-narcotics/comm<strong>and</strong> <strong>and</strong> management system<br />

CNA - computer network attack (DOD)<br />

CNC - computerized numerical control<br />

CNCE - Communications Nodal Control Element<br />

CNCS - crypto net control station<br />

CND - Computer Network Defense<br />

CND - computer network defense<br />

CND-SP - computer network defense service provider<br />

CNE - Computer Network Exploitation<br />

CNI - Center for Networked Information

---

CNI - communication, navigation, identification<br />

CNIDR - clearinghouse for network information <strong>and</strong> discovery <strong>and</strong><br />

retrieval<br />

CNIU - communications/navigation interface unit<br />

CNM - customer network management<br />

CNO - Chief of Naval Operations<br />

CNO - computer network operations<br />

CNOS - corporate network operating system<br />

CNR - carrier-to-noise ratio<br />

CNR - combat net radio<br />

CNRI - combat net radio interface<br />

CNS - channel networking service<br />

CNS - communications, navigation <strong>and</strong> surveillance (FAA)<br />

CNS - complementary network service<br />

CNS - converged network services<br />

CNSS - Core Nodal Switching Subsystem [Internet]<br />

CNTG - Computer Network Transaction Groups<br />

CNTL - control<br />

CNV - VINSON cryptonet variable<br />

CNX - certified network expert<br />

CO - central office<br />

CO - Comm<strong>and</strong>ing Officer<br />

co - company<br />

COA - central operating authority (NATO)<br />

COA - course of action<br />

COAM - customer owned <strong>and</strong> maintained equipment<br />

COAST - computer operations, audit <strong>and</strong> security technology<br />

COAX - coaxial cable<br />

COBOL - common business oriented language<br />

COBRA - common object request broker architecture<br />

COCOM - Combatant Comm<strong>and</strong>er, combatant comm<strong>and</strong><br />

COCOMO - constructive cost model<br />

CODEC - compression/decompression<br />

Codec - COder/DECoder. A device which takes digitized audio <strong>and</strong><br />

"codes" it in order to reduce the transmission bit rate <strong>and</strong> which<br />

can also simultaneously "decode" such coded audio. Strictly<br />

speaking, a codec does not include an ISDN terminal adaptor <strong>and</strong><br />

relatedequipment.<br />

COE - Common Operating Environment<br />

COEA - cost <strong>and</strong> operational effectiveness analysis<br />

COFDM - coded orthogonal frequency division multiplexing<br />

COFF - common object file format<br />

CofS - Chief of Staff<br />

COI - community of interest<br />

COIL - Chemical Oxygen-Iodine Laser<br />

COINS - community online intelligence system<br />

COM - character oriented messages<br />

COMALF - comm<strong>and</strong>er, airlift forces comm communications<br />

COMB - combiner<br />

Page 23 of 106<br />

Combination - Trunk - A trunk (channel) which can both make <strong>and</strong><br />

receive calls. This generally refers to analog ground start or loop<br />

start trunks, although the term can be applied to ISDN BRI or PRI<br />

channels as well. Each combination trunk normally has a<br />

telephone number, although they are frequently part of a hunt<br />

group <strong>and</strong> only one number may be published for that group. Also<br />

called a Both Way Trunk. This is not the same as a Two-way DID<br />

trunk. See DID Trunk, Hunt Group <strong>and</strong> Trunk<br />

COMCAM - combat camera<br />

COMINT - communications intelligence<br />

COMM - communications<br />

Common - Carrier - A company that furnishes communications<br />

services to the general public <strong>and</strong> is regulated by appropriate<br />

state or federal agencies.<br />

Common - Channel Interoffice Signaling - See CCIS<br />

Common - Equipment - St<strong>and</strong>ard equipment that is shipped with<br />

nodes to provide basic functionality. It includes modules (such as<br />

the SX, BX, PPM <strong>and</strong> PSM for the Promina 800) as well as card<br />

shelves, power supply trays, <strong>and</strong> power supplies.<br />

Comp<strong>and</strong>ing - Derived from COMpressor <strong>and</strong> exPANDer,<br />

comp<strong>and</strong>ing is the process of logarithmically compressing the<br />

dynamic range of an input signal at the transmitter <strong>and</strong> exp<strong>and</strong>ing<br />

it back to almost original form at the receiver.<br />

COMPES - contingency operations/mobility planning <strong>and</strong> execution<br />

system<br />

Competitive - Local Exchange Carrier - See CLEC<br />

COMPFEC - compressed with forward error correction<br />

Composite - Loopback - Loopback of the DS0B bundle.<br />

Compression - Application of any of several techniques that reduce<br />

the number of bits needed to represent information in data<br />

transmission or storage. It conserves b<strong>and</strong>width <strong>and</strong> memory so<br />

the original form of the information can be reconstructed.<br />

Compression is also known as compaction.<br />

Compression - Level - A level assigned to each voice port that<br />

defines the amount of compression needed on all calls originating<br />

from that channel. If a call cannot be set up to satisfy the<br />

assigned compression level or that satisfies the default st<strong>and</strong>ard<br />

of 64 kbps Pulse Code Modulation (PCM), no call is placed.<br />

COMPUSEC - computer security<br />

COMSAT - communications satellite<br />

COMSEC - Communications Security<br />

COMSIM - communications simulation system<br />

COMSPOT - communications spot report<br />

COMSTAT - communications status report<br />

COMSTATSUM - communications status summary report<br />

CONAUTH - controlling authority<br />

Concatenation - The linking of transmission channels end to end.<br />

Concentration - The basic premise is to share facilities wherever<br />

possible. For instance, while there may be thous<strong>and</strong>s of<br />

customers served by a given Central Office, there will be<br />

substantially less than that number of calls which can be h<strong>and</strong>led<br />

simultaneously. And even fewer long distance calls can be made<br />

simultaneously. The art of Traffic Engineering is to have enough<br />

capability that calls are rarely blocked, but not any more than that.<br />

See also Choke Exchange <strong>and</strong> Blocking.<br />

Conditioning, - Line - The addition of equipment to a leased voicegrade<br />

channel to improve analog characteristics to allow higher<br />

rates of data transmission.<br />

CONEXPLAN - contingency <strong>and</strong> exercise plan

---

Configuration - Database - The user-specified information about the<br />

network (such as nodes, cards, ports, <strong>and</strong> links) stored in flash<br />

memory, PSM disk drive, or both on Promina nodes.<br />

Connect - Time - The time that a circuit is in use.<br />

Connectivity - The ability to effectively integrate information <strong>and</strong><br />

communications equipment, including equipment with different<br />

st<strong>and</strong>ards <strong>and</strong> protocols.<br />

CONOPS - Concept of Operations<br />

CONPLAN - 1. contingency plan; 2. operations plan in concept<br />

format<br />

CONT - continuous<br />

Contention - The facility provided by the dial network or a port<br />

selector that allows multiple terminals to compete on a first-comefirst-serve<br />

basis for a smaller number of computer ports.<br />

Control - Mode - A DDS circuit is in the Control Mode when the<br />

circuit's C bit = 0 (for example, the data bits contain a DDS<br />

Network Control Code such as a loopback request).<br />

Controller - A generic term for a type of communication control unit<br />

that manages the details of line control <strong>and</strong> routing of data<br />

through a network.<br />

CONUS - Continental United States<br />

coord - coordinate(s)<br />

COP - character oriented protocol<br />

COP - common operating picture<br />

COR - central office of record<br />

CORBA - common object request broker architecture<br />

CORN - computer resource nucleus (FAA)<br />

COS - class of service<br />

COS - corporation for open systems<br />

COSCOM - corps support comm<strong>and</strong><br />

COSE - common open system environment<br />

COSMIC - Computer Software Management <strong>and</strong> Information Center<br />

COSPO - Community Open Source Program Office (CIA)<br />

Cost - Routing - See routing cost.<br />

COSTARS - combined sensors target acquisition, recognition, strike<br />

COT - Commercial Over TRI-TAC<br />

COT - computer operator terminal<br />

COT - customer office terminal<br />

COTS - commercial off-the-shelf<br />

COU - cable orderwire unit<br />

COW - control orderwire<br />

CP - comm<strong>and</strong> post<br />

CP - crypto peripheral<br />

CP - collaborative planning<br />

CPAS - Cellular Priority Access Service<br />

CPCI - computer program configuration item<br />

CPCS - (Common Part Conjunction Sublayer) - The Common Part<br />

Conjunction Sublayer of ATM Adaption Layer 5 in conjunction<br />

with the ATM-layer ATM_user_to_user Indication (end of PDU)<br />

provides segmentation <strong>and</strong> reassembly (frame delimiting) for FR-<br />

SSCS PDUs.<br />

CPD - combat pictorial detachment (Army)<br />

CPDLC - controller/pilot data link communications (FAA)<br />

Page 24 of 106<br />

CPDS - computer program development specification<br />

CPE - central processing element<br />

CPE - (Customer Premises Equipment) - Equipment that is located<br />

on the customer's premises.<br />

CPFSK - continuous-phase frequency shift keying<br />

CPG - Central Processor Group<br />

CPIN - computer program identification number<br />

CPLD - complex programmable logic device<br />

CPLI - calling party line identification<br />

CPM - communications planning module<br />

CPNI - Customer Proprietary Network Information<br />

CPP - Communications Protocol Processor<br />

CPP - point-to-point analysis<br />

CPP - communication patch panel<br />

CPPP - Compressed Point-to-Point Protocol<br />

CPS - characters per second<br />

CPS - certificate practices statement<br />

CPS - COMSEC parent switch<br />

CPSM - continuous phase shift modulation<br />

CPSR - Computer Professionals for Social Responsibility<br />

CPSS - Computer Systems Squadron<br />

CPTS - computer program test specification<br />

CPU - central processing unit<br />

CPX - comm<strong>and</strong> post exercise<br />

CR - channel (circuit) reliability<br />

CRAG - compass, radar <strong>and</strong> global positioning<br />

CRC - Control <strong>and</strong> Reporting Center<br />

CRC - circuit routing chart<br />

CRC - (Cyclical Redundancy Check) - 1. An error detection method,<br />

for link-level data transmissions, that does mathematical<br />

calculations on a message <strong>and</strong> sends the results to the receiving<br />

side. The receiving side performs the same calculation, <strong>and</strong> if the<br />

results do not match, it requests a retransmission. 2. circuit<br />

routing chart.<br />

CRE - control <strong>and</strong> reporting element<br />

CREN - Computer Research Education Network<br />

CRF - Cable Retransmission Facility<br />

CRF - channel reassignment function<br />

CRI - collective RI<br />

CRIS - communications resource information sharing (NCS)<br />

CRIS - computer resources integrated support<br />

CRISD - Computer Resources Integrated Support Document<br />

CRISIS - combat readiness infrastructure support information system<br />

(USAF)<br />

CRISP - Computer Resources Integrated Support Plan<br />

CRISP - crypto reduced instruction set processor<br />

CRITIC - critical intelligence<br />

CRL - certificate revocation list<br />

CRM - Collections Requirements Management<br />

CRMP - Computer Resources Management Plan

---

CROM - control read only memory<br />

Crosstalk - Undesired voice-b<strong>and</strong> energy transfer from one circuit to<br />

another (usually adjacent).<br />

CRPA - Controlled Reception Pattern Antenna<br />

CRS - call reporting system<br />

CRS - circuit switch routing<br />

CRT - cathode ray tube<br />

CRXC - continuous receive clock<br />

CRYPTO - cryptographic<br />

Crypto - Synchronizer Circuit - This circuit is used to synchronize<br />

external equipment. The circuit is pulsed whenever the DS3<br />

signal is out-of-frame.<br />

CS - communications security<br />

CS - Communications Server<br />

CS-ACELP - Conjugate-Structure Algebraic-Code-Excited Linear-<br />

Predictive<br />

CS - circuit switch<br />

CS - combat support<br />

CSA - Combat Support Agencies<br />

CSA - Computer Security Act<br />

CSAP - Computer Security Accreditation Plan<br />

CSAR - Channel System Address Register<br />

CSC - common signaling channel<br />

CSC - computer software component<br />

CSCE - Communications System Control Element<br />

CSCI - Commercial Satellite Communications Initiative<br />

CSCI - computer software configuration item<br />

CSD - cellular security device<br />

CSD - Circuit Switched Data- A dial-up data communications<br />

channel which, once established, looks like a transparent data<br />

pipe. Also, the type of ISDN service required to utilize this<br />

capability of an ISDN circuit. In contrast to CSV.<br />

CSDC - circuit-switched digital capability<br />

CSDS - Packet Switched Data Service<br />

CSE - Center for Security Evaluations<br />

CSE - client server environment<br />

CSE - Communications Security Establishment (Canada)<br />

CSEL - combat survivor-evader locator (communications)<br />

CSEL - circuit switch select line<br />

CSET - computer security engineering team (USAF)<br />

CSF - configuration strapping function<br />

CSG - Cryptologic Support Group (NSA)<br />

CSI - commercial SATCOM interconnectivity<br />

CSI - Computer Security Institute<br />

CSIPG - circuit switch trunk interface planning guide<br />

CSIT - Customer Service Improvement Team<br />

CSL - computer sensitive language<br />

CSL - computer systems laboratory<br />

CSLIP - (Compressed Serial Line Interface Protocol) - A version of<br />

SLIP using compression. See SLIP.<br />

Page 25 of 106<br />

CSM - compartmented security mode<br />

CSM - Comm<strong>and</strong> Sergeant Major<br />

CSMA/CD - carrier sense multiple access/collision detection<br />

CSNI - communications systems network interoperability<br />

CSO - cognizant security office<br />

CSO - communications service order<br />

CSOLOP - Circuit Switch On Line Operational Program<br />

CSOR - computer security objects register<br />

CSP - common synthetic aperture radar processor<br />

CSP - communications system processor<br />

CSP - Common Security Protocol<br />

CSP - call service position<br />

CSP - Communications Support Package<br />

CSPC - Call Service Position Console<br />

CSPDN - circuit switched public data network<br />

CSPE - Communication System Planning Element<br />

CSR - commercial security requirements<br />

CSR - circuit switch routing<br />

CSR - communications status report<br />

CSR - TEP circuit switch routing task execution plan<br />

CSS - card <strong>and</strong> socket services<br />

CSS - cascading style sheets<br />

CSS - Central Security Service<br />

CSS - commercial satellite survivability<br />

CSS - common support system<br />

CSS - communications support system (Navy)<br />

CSS - COMSEC subordinate switch<br />

CSS - communications subsystem<br />

CSS - Circuit Switch Subsystem<br />

CSS - combat service support<br />

CSSC - Canadian System Security Centre<br />

CSSCS - combat service support control system (Army)<br />

CSSE - combat service support element<br />

CSSI - computer security subsystem interpretation<br />

CSSPAB - Computer System Security <strong>and</strong> Privacy Advisory Board<br />

CSSTSS - combat service support training simulation system<br />

CSTC - Computer Security Technology Center<br />

CSTO - Computer Systems Technology Office<br />

CSU - communications switching unit<br />

CSU - computer software unit<br />

CSU - customer service unit<br />

CSU - call service unit<br />

CSU - (Channel Service Unit) - A device at the customer's site that<br />

connects to a public carrier's T1 line at the Central Office. It<br />

provides bipolar violation correction, assurance of proper ones'<br />

density in the transmitted bit stream, <strong>and</strong> FCC tariff 68 network<br />

protection compliance.<br />

CSU/DSU - A device which incorporates the functions of a CSU<br />

(Channel Service Unit) <strong>and</strong> a DSU (Data Service Unit) <strong>and</strong>

---

interfaces between a Switched-56 (or "Dedicated Digital Service")<br />

line <strong>and</strong> a user's data equipment.<br />

CSV - Circuit Switched Voice- A dial-up communications circuit for<br />

voice grade communication. Also, the type of ISDN service<br />

required to use this capability of an ISDN circuit. In contrast to<br />

CSD.<br />

CSWG - communications systems working group (NATO)<br />

CT - cryptologic technician<br />

CT - cipher text<br />

CT - communications terminal<br />

CT - control telemetry<br />

CTA - common table of allowances<br />

CTAPS - Contingency Tactical Air Control System (TACS)<br />

Automated Planning System<br />

CTASC-I - Corps/Theater Automatic Data Processing Service Center<br />

Phase-I<br />

CTCD - cipher text data terminal ready<br />

CTCPEC - Canadian trusted computer product evaluation criteria<br />

CTCS - cipher text clear to send<br />

CTDM - cipher text data mode<br />

CTHA - Contra-wound Toroidal Helical Antenna<br />

CTI - computer-telephone integration<br />

CTI - Cryptologic Technician Interpretive<br />

CTI - Control Terminal Interface<br />

CTI - Criterion Test Instructions<br />

CTIA - Cellular Telecommunications Industry Association<br />

CTIC - COMSEC TRANSEC integrated circuit<br />

CTID - communications transmission identifier<br />

CTIS - combat terrain information system<br />

CTIS - comm<strong>and</strong> tactical information system (Pacific Comm<strong>and</strong>)<br />

CTL - Control<br />

CTLL - cipher text local loopback<br />

CTN - CALS test network<br />

CTOC - Corps Tactical Operations Center<br />

CTOS - convergent technologies operating systems<br />

CTP - Communications Terminal Processor<br />

CTP - common tactical picture<br />

CTPA - coax-to-twisted-pair adapter<br />

CTRL - control<br />

CTRR - cipher text receiver ready<br />

CTRS - cipher text request to send<br />

CTS - clear to send<br />

CTT - Comm<strong>and</strong>er’s Tactical Terminal<br />

CTT-H/R - comm<strong>and</strong>ers tactical terminal-hybrid/receive<br />

CTTA - Certified TEMPEST Technical Authority<br />

CTTA - Certified TEMPEST Technical Authority<br />

CTTH - Comm<strong>and</strong>er’s Tactical Terminal-Hybrid<br />

CTTM - cipher text test mode<br />

CTTR - cipher text transmit ready<br />

CTTT - cipher text terminal timing<br />

Page 26 of 106<br />

CTU - cabin telecommunications unit<br />

CTX - cipher text transmit<br />

CU - Common User<br />

CU - control unit<br />

CU - common unit<br />

CUBE - comm<strong>and</strong> <strong>and</strong> control unified battlespace environment<br />

CUI - character-oriented user interface<br />

CUITN - Common User Installation Transport Network<br />

CUL - common user language<br />

CUM - cumulative<br />

CUP - COMSEC utility program<br />

Custom - ISDN - An ISDN protocol which pre-dates National ISDN-<br />

1. In most cases National ISDN-1 is also available. The Northern<br />

Telcom DMS-100 switch supports "Custom DMS ISDN". The<br />

AT&T/Lucent 5ESS switch supports "Custom Point-to-Point"<br />

(PTP) <strong>and</strong> Custom Point-to-MultiPoint (PMP). The ISDN protocol<br />

has no relation to where one may call.<br />

CV - continuously variable<br />

CV - community variable<br />

CVAT - Coalition Vulnerability Analysis Team<br />

CVBG - carrier battle group<br />

CVDOW - combined voice <strong>and</strong> data orderwire<br />

CVE - common vulnerabilities <strong>and</strong> exposures<br />

CVGA - color video graphics array<br />

CVS - cargo visibility system<br />

CVSD - continuous variable slope delta<br />

CVSDA - CVSD altered<br />

CVSDM - (Continuously Variable Slope Delta Modulation) - A<br />

speech-encoding technique that encodes the difference between<br />

two successive signal levels using a 1-bit sample. The sampling<br />

rate that is usually used is 32,000 times per second, but lesser<br />

rates have been used successfully.<br />

CVTS - compressed video transmission service<br />

CVW - collaborative virtual workspace<br />

CW - continuous wave<br />

CWAN - coalition wide area network<br />

CWAN - consolidated wide area network (Korea)<br />

CWC - Composite Warfare Comm<strong>and</strong>er<br />

CWIN - cockpit weather information system<br />

CWSI - Cisco Works Switch Internetworks<br />

CX - composite signaling<br />

CXR - carrier D4 Superframe<br />

CYMK - cyan-yellow-magenta-black (color model)<br />

CYPRIS - cryptographic reduced instruction set processor<br />

CYW - Cybernetic Warfare<br />

CZ - canal zone

---

D - data<br />

D - depth<br />

D<br />

D - Channel - Data Channel or Delta Channel (depending on who<br />

you ask). The channel which h<strong>and</strong>les ISDN network related data<br />

between the user's equipment <strong>and</strong> the Telco switch. Used to carry<br />

data to set up calls <strong>and</strong> receive calls. Some Telco's also allow<br />

users to use the D channel to access the packet data network,<br />

with appropriate terminal equipment.<br />

D/A - digital-to-analog<br />

D/C - downconverter<br />

D/L - downlink<br />

D4 - See Superframe. See also Line Format.<br />

D4 - Framing - The framing format used on most existing 1.544<br />

Mbps facilities. Refers to a particular pattern (100011011100) that<br />

appears one bit at a time in the 193rd bit position of the<br />

Superframe. Each D4 Superframe has 12 main frames at 192 bits<br />

in length. This pattern accounts for 8 Kb out of the 1.544 Mb<br />

leaving only 1.536 Mb for information.<br />

DA - data administrator<br />

DA - Department of the Army<br />

DAA - data access arrangement<br />

DAA - Designated Approval Authority<br />

DAAS - defense automatic addressing system<br />

DAB - digital audio broadcasting<br />

DAC - data acquisition <strong>and</strong> control<br />

DAC - digital to analog converter<br />

DAC - discretionary access control<br />

DACB - data adapter control block<br />

DACES - defense automated cost engineering system<br />

DACM - data adapter control mode<br />

DACS - Data <strong>and</strong> Analysis Center for Software<br />

DACS - (Digital Access Cross-Connect System) - An AT&T service<br />

allowing a full T1 facility, or one of its channels to be crossconnected<br />

to another T1 facility.<br />

DACT - data automated communications terminal (USMC)<br />

DADEMS - DA data element management system<br />

DAE - Defense Acquisition Executive<br />

DAG - directed access groups<br />

DAIM - dual ASAS interface module<br />

DAL - disk access lockout<br />

DAMA - dem<strong>and</strong> assignment (assigned) multiple access<br />

DAME - Division Airspace Management Element<br />

DAMMS - Department of the Army movement management system<br />

DAMP - DGM antenna mast program<br />

DAMPS - digital advanced mobile phone system<br />

DAP - data analysis plan<br />

DAP - design analysis phase<br />

DAP-NAD - deterministic adaptable priority network access delay<br />

(protocol)<br />

Page 27 of 106<br />

DAP - Directory Access Protocol<br />

DAR - defense acquisition radar<br />

DAR - defense acquisition regulation<br />

DAR - distortion adaptive receiver<br />

DARMS - data automation resource management system<br />

DARO - Defense Airborne Reconnaissance Office<br />

DARP - Defense Airborne Reconnaissance Program<br />

DARS - digital audio radio service<br />

DART - dynamic analysis replenishing tool<br />

DART - dynamic analytical replanning tool<br />

DAS - data acquisition subsystem<br />

DAS - direct access subscriber<br />

DAS - direct access service<br />

DASA - DSCS automatic spectrum analyzer<br />

DASC - direct air support center<br />

DASD - direct access storage device<br />

DASH - deployable automation support host (Army)<br />

DASP - data administration strategic plan (DOD)<br />

DASS - digital acoustic sensor simulator<br />

DAT - digital audio tape<br />

DAT - data analysis tool<br />

DAT - data<br />

Data - Mode - A DDS circuit is in data mode when the circuit's C bit =<br />

1 (the data bits contain customer data).<br />

DATINT - data intelligence<br />

DATU - data adapter termination unit<br />

DAU - data acquisition unit<br />

DAVIC - Digital Audio-Visual Council<br />

DAWN - defense attache worldwide network<br />

DAWS - defense automated warning system<br />

DB - data base<br />

DB - data buffer<br />

dB - (Decibel) - The st<strong>and</strong>ard unit used to express the relative<br />

strength of two signals. When referring to a single signal<br />

measured at two places in a transmission system, it expresses<br />

either a gain or a loss in power between the input <strong>and</strong> output<br />

devices.<br />

DBA - data base administration<br />

dBA - decibels absolute<br />

DBC - digital battlefield communications<br />

DBCS - double-byte character set<br />

DBD - display bypass <strong>and</strong> duplication<br />

DBDD - database design document<br />

DBDR - data base design review<br />

DBG - data base generation<br />

dBi - decibels above isotropic reference<br />

DBK - dominant battlefield knowledge<br />

DBL - double<br />

DBM - Data Base Manager

---

dBm - Decibel referenced to 1 milliwatt. Used in communications<br />

circuits as a measure of signal power. Zero dBm equals one<br />

milliwatt into a specified impedance, often 600 ohms.<br />

dBm0 - noise power in dBm at a point of zero relative transmission<br />

level<br />

dBmC - decibels referred to 1 milliwatt, C-message weighted<br />

DBME - data base management environment<br />

DBMS - database management system<br />

DBOF - defense business operating fund<br />

DBPSK - differential binary phase-shift keying<br />

DBR - display bypass reception<br />

DBS - data base server<br />

DBS - Direct Broadcast Satellite<br />

DBS - division battle simulation<br />

DBS - data broadcast switch<br />

DBSL - deep battle synchronization line<br />

dBW - decibels referred to one Watt<br />

DC - down converter<br />

DC - direct current<br />

DC - dedicated conventional<br />

DCA - Defense Communications Agency (now DISA)<br />

DCA - Defense Courier Agency<br />

DCAM - direct chip attach module<br />

DCBU - digital conference bridge unit<br />

DCC - digital communications controller<br />

DCCLR - dc closure<br />

DCCS - distributed comm<strong>and</strong> & control system<br />

DCCS - digital cross connect switch<br />

DCD - data carrier detect<br />

DCE - data circuit terminating equipment<br />

DCE - Distributed Computing Environment<br />

DCE - (Data Communication Equipment) - In a communications link,<br />

equipment that is part of the network, an access point to the<br />

network, a network node, or point at which a network circuit<br />

terminates. In an RS-232-C connection, the modem is regarded<br />

as DCE <strong>and</strong> the user device as DTE (data terminal equipment).<br />

When using serial communications such RS-232, V.35, or X.21,<br />

the DCE is the device sending/receiving from the Telco line. ie: a<br />

modem or CSU/DSU. In contrast to DTE.<br />

DCE/TT - (Data Communications Equipment/Transmitter Timing) -<br />

One of three options available in the sync card port configuration<br />

timing parameter.<br />

DCF - data communication facility<br />

DCF - data compression facility<br />

DCF - document composition facility<br />

DCI - display control interface<br />

DCI - Director Central Intelligence<br />

DCI - Director Combat Intelligence (Army)<br />

DCID - Director Central Intelligence Directive<br />

DCIPS - defense casualty information processing system<br />

DCIS - defense commissary information system<br />

DCM - data channel multiplexer<br />

Page 28 of 106<br />

DCNRI - dismounted combat net radio interface<br />

DCO - dial central office<br />

DCOM - distributed component object model<br />

DCOR - division COMSEC office of record<br />

DCP - Defense Cryptological Program<br />

DCP - digital communications protocol<br />

DCPDS - defense civilian personnel data system<br />

DCPG - digital clock pulse generator<br />

DCPS - defense civilian payroll system<br />

DCPSK - differentially coherent phase-shift keying<br />

DCR - direct conversion receiver<br />

DCS - data collection system<br />

DCS - data control system<br />

DCS - deployable cellular system<br />

DCS - digital selective calling<br />

DCS - desk-top color separation<br />

DCS - Defense Communications System<br />

DCS - (Digital Cross-Connect Systems) - A DCS provides electronic<br />

connections between DS0 (64K) time slots of many T1 lines when<br />

234 DS0 time slots connect or switch between T1 ports, the DCS<br />

acts like a T1 switch.<br />

DCS - Dual-Channel Switch<br />

DCSCU - dual capability servo control unit<br />

DCSO - Defense Communications System Organization (DISA)<br />

DCSS - Digital Communications Satellite Subsystem<br />

DCT - digital communication terminal<br />

DCT - discrete cosine transform<br />

DCT - dial code table<br />

DCTL - defense tactical common data link<br />

DCTN - Defense Commercial Telecommunications Network<br />

DCU - display control unit<br />

DCW - Digital Chart of the World<br />

DCWS - direction, control <strong>and</strong> warning system<br />

DD - dedicated DA<br />

DD/D - data dictionary/directory<br />

DD/DS - data dictionary/directory system (DOD)<br />

DDA - domain-defined attribute<br />

DDB - device dependent bitmap<br />

DDBP - dedicated database processor<br />

DDC - Division Data Center<br />

DDCMP - digital data communications message protocol<br />

DDD - direct distance dialing<br />

DDE - direct data entry<br />

DDE - dynamic data exchange<br />

DDI - director defense information<br />

DDL - data definition (design) language<br />

DDL - data distribution list<br />

DDM - distributed data management

---

DDM - digital data modem<br />

DDMS - defense debt management system<br />

DDN - Defense Data Network<br />

DDO - directorate of operations (CIA)<br />

DDRS - defense data repository system<br />

DDS - data distribution system<br />

DDS - defense dissemination system<br />

DDS - direct digital synthesizer<br />

DDS - distributed denial of service (attack)<br />

DDS - digital data service<br />

DDS - display directory status<br />

DDS - (Dataphone Digital Service) - 1. A private line service offered<br />

by AT&T to transmit data that uses digital signal formats. It is<br />

available at rates of 4.8, 9.6, <strong>and</strong> 56 kbps. DS0A <strong>and</strong> DS0B are<br />

two types of DDS. 2. Digital Data System- See Dedicated Digital<br />

Service.<br />

DDST - Downsized Deployable Satellite Terminal<br />

DDW - digital data warfare<br />

DE - data element<br />

DE - directed energy<br />

DE - data entry<br />

DE - delay equalizer<br />

DEA - Data Exchange Annex<br />

DEA - Drug Enforcement Administration<br />

DECCO - defense commercial communications office (DISA)<br />

DECM - defensive electronic countermeasures<br />

Decoder - Any device that modifies transmitted information to a form<br />

that can be understood by the receiver.<br />

Decoding - In Pulse Code Modulation (PCM) voice equipment, a<br />

process in which a set of quantized values is generated from the<br />

digital representation of a sample.<br />

DECT - digital European cordless telephony (Europe st<strong>and</strong>ard)<br />

DED - data element dictionary<br />

DED - data encryption device<br />

Dedicated - Circuit - A permanent channel between two locations.<br />

As opposed to a Switched Circuit<br />

Dedicated - Digital Service - A "Hardwired" or "Nailed Up" digital<br />

circuit which is permanently connected between 2 points.<br />

Typically 56Kbps or 64Kbps. Dedicated digital lines are frequently<br />

cheaper than ISDN for full time service. Also called Digital Data<br />

System, or DDS.<br />

DEFCON - defense condition<br />

DEFI - data entry file inquiry<br />

DEIS - defense enterprise integration services (DISA)<br />

DEK - data encryption key<br />

Delay, - Propagation - The time required for a signal to travel from<br />

one point to another in a component, circuit or system.<br />

DEMARC - demarcation<br />

DEMOD - demodulator<br />

Demodulation - The process of extracting transmitted information<br />

from a carrier signal.<br />

DeMS - deployment management system (USAF)<br />

Dem<strong>and</strong> - Assigned - A feature that is unique to the node that<br />

DFO - Disaster Field Office<br />

continually optimizes network b<strong>and</strong>width resources. Network<br />

resources including b<strong>and</strong>width, are allocated only to active calls.<br />

DFS - distributed file system<br />

The node monitors signaling from each attached voice or data<br />

device, <strong>and</strong> determines when service is required; only then is<br />

DFT - design for test<br />

b<strong>and</strong>width allocated. Because b<strong>and</strong>width is not wasted on<br />

DFT - diagnostic function test<br />

inactive ports, the efficiency of transmission facilities is greatly<br />

increased, while rerouting performance is optimized by<br />

reconnecting only the active calls.<br />

DFT - discrete Fourier transform<br />

Page 29 of 106<br />

Demultiplexed - Loopback - Loopback of a DS0B subrate channel.<br />

Demultiplexor - A circuit that distributes an input signal to a selected<br />

output line (with more than one output line available).<br />

DEMUX - demultiplex<br />

DENIS - defense environmental network information exchange<br />

DENS - directed energy neutralization system<br />

DEPMEDS - deployable medical systems development system<br />

DEQPSK - differentially encoded quadrature phase shift keying<br />

DES - data (digital) encryption st<strong>and</strong>ard<br />

DES - data entry sheet<br />

DES - downsized extension switch<br />

DES - dismounted extension switch<br />

DES - Digital Encryption St<strong>and</strong>ard<br />

desig - designator<br />

DET - data entry terminal<br />

DET - device execute trigger<br />

DET - deterministic<br />

DET - Detachment<br />

DEUCE - downsized end user computer equipment<br />

DEVA - document-enabled virtual applications<br />

Device - ID - A term used to indicate objects in a node such as the<br />

node, links, card, <strong>and</strong> so on.<br />

Device - SPF shortest path first<br />

DEW - Directed Energy Warfare<br />

DF - data field<br />

DF - destination field<br />

DF - device flag<br />

DF - direction finding<br />

DF - don't fragment flag, IP header<br />

DFAD - digital feature attribute (analysis) data<br />

DFAR - defense federal acquisition regulation<br />

DFC - data flow control<br />

DFD - data flow diagrams<br />

DFG - domain FORTEZZA gateway<br />

DFHSM - data facility hierarchical storage manager<br />

DFI - data field identifier<br />

DFL - data file line<br />

DFM - design for manufacturing

---

DFT - distributed function terminal<br />

DGIAP - Defense General Intelligence <strong>and</strong> Applications Program<br />

DGIS - defense gateway information system<br />

DGIS - Direct Graphics Interface St<strong>and</strong>ard<br />

DGM - Digital Group Multiplexer<br />

DGP - (Datagram Packet) - In internet communication using routers,<br />

a DGP is independently routed from a node to its destination.<br />

Applications for DGPs include node-to-network control point<br />

communications, address packets that set up a call, <strong>and</strong> remote<br />

messages sent between the comm<strong>and</strong> processor <strong>and</strong> remote<br />

database task. DGPs are divided into distinct classes, point-topoint<br />

packets, <strong>and</strong> message packets.<br />

DGPS - differential global positioning system<br />

DGS - deployable ground station (USAF)<br />

DGS - display group status<br />

DGSA - DOD goal security architecture<br />

DHCF - distributed host comm<strong>and</strong> facility<br />

DHCP - decentralized hospital computer program (VA)<br />

DHCP - Dynamic Host Configuration Protocol<br />

DHPCMP - Defense High Performance Computing Modernization<br />

Plan<br />

DHS - Defense HUMINY Service (DIA)<br />

DHS - digital hash st<strong>and</strong>ard<br />

DIA - Defense Intelligence Agency<br />

DIAC - Defense Intelligence Analysis Center<br />

Dial-Up - Line - A communications circuit that is established by a<br />

switched circuit connection using the telephone dial network.<br />

DIAM - Defense Intelligence Agency Manual<br />

DIANA - descriptive intermediate attributed notation Ada<br />

DIAOLS - DIA online system<br />

DIAP - Defense Information Assurance Program<br />

DIB - device independent bitmap<br />

DIB - directory information base<br />

DIBTS - Digital In-B<strong>and</strong> Trunk Signaling<br />

DICP - Defense Intelligence Counterdrug Program<br />

DID - data item description<br />

DID - Defense-in-Depth<br />

DID - Direct Inward Dialing. The ability for an outside caller to dial to<br />

a PBX extension without going through an attendant or autoattendant.<br />

DID - Extension or DID Station - A specific phone within a PBX which<br />

can be called from the public telephone network without going<br />

through an attendant or auto-attendant.<br />

DID - Number - A phone number used to route calls from the<br />

telephone network to a specific phone in a PBX (the DID<br />

extension). DID requires special DID trunks or ISDN PRI "twoway<br />

DID" trunks. Blocks of DID numbers (typically 10 or 20) are<br />

purchased from the LEC or CLEC for use on the PBX. The<br />

number of DID numbers usually substantially exceeds the number<br />

of trunks in the system.<br />

DID - Trunk - A Direct Inward Dialing Trunk. A trunk (channel) which<br />

can only receive calls. A group of telephone numbers (DID<br />

numbers) are associated with a given trunk group, however there<br />

is no one-to-one correspondence between the individual channels<br />

<strong>and</strong> these numbers. The PBX uses the DID number given it by<br />

the phone company to route the channel to the correct DID<br />

extension within the PBX extension. This allows some or all PBX<br />

Page 30 of 106<br />

stations to receive calls directly without going through an<br />

attendant (or auto attendant) Note that there are almost always<br />

more DID numbers than there are DID trunks. See DID Number<br />

<strong>and</strong> DIDExtension.<br />

DIDHS - deployable intelligence data h<strong>and</strong>ling system (Army)<br />

DIDS - defense integrated data system<br />

DIDS - distributed intrusions detection system<br />

DIEB - Defense Intelligence Executive Board<br />

DIF - data interchange format<br />

DIFAX - digital facsimile<br />

DIG - digital<br />

DIGEST - digital geographic information exchange st<strong>and</strong>ard<br />

Digital - Error - A single-digit inconsistency between the transmitted<br />

<strong>and</strong> received signals.<br />

Digital - Signal - A discrete or continuous signal; one whose various<br />

states are identified with discrete levels or values.<br />

Digroup - A group of 24 PCM (Pulse Code Modulation)-encoded, 64<br />

kbps voice channels, or 24 DS0s.<br />

DII - Defense Information Infrastructure<br />

DII - COE DII Common Operating Environment<br />

DIIP - direct interrupt identification port<br />

DIL - Digital Integrated (Integration) Laboratory<br />

DIL - display interswitch link<br />

DIL/T - Digital Integration Laboratory/Test Bed<br />

DIM - data input message<br />

DIMMS - dual inline memory modules<br />

DIN - defense intelligence network<br />

DINAH - desktop interface to AUTODIN host<br />

DINL - INITIALIZE DISK<br />

DINSUM - Defense Intelligence Notice Summary<br />

DIO - data input-output<br />

DIO - defensive information operations<br />

DIO - Division Information Officer<br />

DIOE - Dual Input/Output Exp<strong>and</strong>er<br />

DIP - Defense Imagery Program<br />

DIP - digital imaging processing<br />

DIP - (Dual in-line Package) - A set of two or more binary switches<br />

mounted on a printed circuit assembly.<br />

dir - directory<br />

DIRCM - directed infrared countermeasures<br />

Direct - Inward Dialing - See DID<br />

DIRNSA - Director, NSA<br />

DIS - defense information system<br />

DIS - Defense Investigative Service (Now DSS)<br />

DIS - distributed information system<br />

DIS - draft international st<strong>and</strong>ard<br />

DIS - disable<br />

DISA - Defense Information Systems Agency (formerly DCA)<br />

DISAC - DISA Circular<br />

DISAI - DISA Instruction

---

DISC4 - director of information systems for C4 (Army)<br />

DISCO - Domestic-International Satellite Consideration Order<br />

DISCOM - division support comm<strong>and</strong><br />

DISE - deployable intelligence support element<br />

DISN - Defense Information Systems Network<br />

DISNET - Defense Integrated Secure Network<br />

DISOSS - distributed office support system<br />

DISSP - defense information system security program<br />

DIST - digital interswitch trunk<br />

Distortion - Delay - Distortion resulting from non-uniform speed of<br />

transmission of the various frequency components of a signal<br />

through a transmission medium. Also called group delay.<br />

DISTP - Defense Intelligence Special Technology Program<br />

DISUM - daily intelligence summary<br />

DIT - Directory Information Tree<br />

DIT - display incoming transfer<br />

DITCO - Defense Information Technology Contracting Office<br />

DITSCAP - DOD Information Technology Security Certification <strong>and</strong><br />

Accreditation Program<br />

DITSO - Defense Information Technology Services Organization<br />

DIV - division<br />

DIVARTY - division artillery<br />

DIVO - digital video option board<br />

DIW - Defensive Information Warfare<br />

DIWS - Digital Imagery Workstation Suite<br />

DIWSA - digital imagery work station afloat<br />

DJMS - defense joint military pay system<br />

DLA - Defense Logistics Agency<br />

DLA - digital line adapter<br />

DLC - data link control<br />

DLC - digital loop carrier<br />

DLC - dynamic line circuit<br />

DLC - digital line concentrator<br />

DLCI - (Data Link Connection Identifier) - A unique number assigned<br />

to a PVC end point in a Frame Relay network. Identifies a<br />

particular PVC endpoint within a user's access channel in a<br />

Frame Relay network <strong>and</strong> has local significance only to that<br />

channel.<br />

DLDED - division level data entry device<br />

DLE - data link escape<br />

DLED - digital loop encryption device<br />

DLG - digital loop group<br />

DLL - dynamic link library<br />

DLM - dynamic link module<br />

DLOS - dismounted line-of-sight<br />

DLPI - Data Link Provider Interface<br />

DLPMA - diphase loop modem A<br />

DLS - data link set<br />

DLS - data link switching<br />

DLT - digital linear tape<br />

Page 31 of 106<br />

DLTM - digital line termination module<br />

DLTM-T - DLTM test DLTU digital line termination unit<br />

DLTS - data link test set<br />

DLTU - Digital Line Termination Unit<br />

DM - data management<br />

DM - data mining<br />

DM - distributed memory<br />

DM - data modem<br />

DM - data mode<br />

DMA - Defense Mapping Agency<br />

DMA - Directory Management Agent<br />

DMA - (Direct Memory Access) - A method of moving data from a<br />

storage device to RAM.<br />

DMAIN - division main (comm<strong>and</strong> post)<br />

DMB - DODIIS Management Board<br />

DMC - Defense Megacenter<br />

DMC - data mode control<br />

DMCA - Digital Millenium Copyright Act<br />

DMCGP - Defense Mapping, Charting <strong>and</strong> Geodesy Program<br />

DMCL - Device Media Control Language<br />

DMCS - deployable multi-channel SATCOM<br />

DMD - digital message device<br />

DMD - (Digital Multidrop Data) Module - This module provides<br />

multidrop data connections in a computer network. This capability<br />

permits a front-end processor to communicate with several<br />

terminals over a single data channel.<br />

DMDG - digital message device group<br />

DMDS - Defense Message Distribution System<br />

DME - distance measuring equipment<br />

DME - distributed management environment<br />

DMF - data management facility<br />

DMG - digital map generator<br />

DMHRS - defense medical human resource system<br />

DMI - desktop management interface<br />

DMI - digital multiplexer interface<br />

DMI - Director of Military Intelligence<br />

DMIF - Dynamic Multi-user Information Fustion (DARPA)<br />

DMIS - Director of Management information systems<br />

DML - data manipulation language<br />

DMM - digital multimeter<br />

DMMIS - depot maintenance management information system<br />

DMMS - dynamic memory management system<br />

DMOS - double-diffused metal-oxide semiconductor<br />

DMP - dot matrix printer<br />

DMPC - distributed memory parallel computer<br />

DMPITS - deployable mass population identification <strong>and</strong> tracking<br />

system<br />

DMRD - defense management review decision<br />

DMS - data management software (system)

---

DMS - digital message system<br />

DMS - Defense Message System<br />

DMSD - digital multist<strong>and</strong>ard decoding<br />

DMSO - Defense Modeling <strong>and</strong> Simulation Office<br />

DMSP - defense meteorological satellite program<br />

DMSTTIAC - Defense Modeling, Simulation, <strong>and</strong> Tactical<br />

Technology<br />

DMT - discrete multitone<br />

DMTD - digital message transfer device<br />

DMU - disk memory unit<br />

DMZ - demilitarized zone<br />

DN - directory names<br />

DN - digital nonsecure<br />

DN - distinguished name<br />

DNA - digital network architecture<br />

DNCC - distributed (deployed) network control center<br />

DNGPM - Digital NATO Group Modem<br />

DNI - Digital NATO Interface<br />

DNIC - data network identification code<br />

DNIS - Dialed Number Identification Service- A service, typically<br />

offered by a long distance company on 800 lines, that provides<br />

the number dialed by the caller. This allows a caller to receive<br />

specific treatment depending on the number dialed.<br />

DNIU - Digital NATO Interface Unit<br />

DNMF - dismountable node management facility<br />

DNPA - data numbering plan area<br />

DNS - domain name system (service)<br />

DNS - Doppler navigation sensor<br />

DNSB - digital NATO signaling buffer<br />

DNSIX - defense intelligence security information exchange<br />

DNTGM - Digital NATO Transmission Group Module<br />

DNTSB - Digital NATO Trunk Signaling Buffer<br />

DNVT - Digital Non-Secure Voice Telephone<br />

DNY - display NYX routing<br />

DOAC - Data Operations <strong>and</strong> Analysis Center<br />

DOC - Department of Commerce<br />

DOC - data orderwire combiner<br />

doc - documentation<br />

DOD - Department of Defense<br />

DOD - direct outward dialing<br />

DOD-JIC - DOD Joint Intelligence Center<br />

DODEX - DOD intelligence information system extension<br />

DODI - Department of Defense Instruction<br />

DODIIMS - DoD intelligence management system<br />

DODIIS - Department of Defense Intelligence Information System<br />

DODIPP - DOD Intelligence Production Program<br />

DOE - Department of Energy<br />

DOENTS - Department of Energy National Telecommunications<br />

System<br />

Page 32 of 106<br />

DOI - domain of interpretation<br />

DOI - DSSCS Operating Instructions<br />

DOIM - Director of Information Management<br />

DOJ - Department of Justice<br />

DOJIRS - DOJ Incident Response Service<br />

DOM - data output message<br />

Domain - (Promina 800) - The Promina 800 provides system<br />

redundancy through two domains designated A <strong>and</strong> B.<br />

Domain - A Promina network consists of up to 250 nodes. A<br />

maximum of 4096 domains can be connected to each other<br />

through gateway nodes to form a larger network consisting of up<br />

to 1,024,000 nodes. Calls originating in one domain may<br />

terminate in another domain (interdomain call). Access to the<br />

domain though the gateway node is controlled by the domain<br />

permit map.<br />

Domain - ID - Domains are identified through the Operator Interface<br />

by a number from 1 to 4096, preceded by a D (for example,<br />

D100). This number is assigned to a node (through the local<br />

domain parameters) to indicate that the node is part of a particular<br />

domain.<br />

Domain - Route Server Node - The Domain Route Server Node is<br />

the designated node that maintains the database for the IP<br />

routing table <strong>and</strong> also advertises or broadcasts the IP routes<br />

throughout the domain. Any Promina 800 series node can be a<br />

Domain Route Server Node. There can be multiple Domain Route<br />

Server Nodes within a domain provided they are configured as<br />

server nodes serving different routes.<br />

DOMF - distributed object management facility<br />

DOOSRS - document on-line optical storage <strong>and</strong> retrieval system<br />

DOP - data object processed<br />

DOR - domain of responsibility<br />

DOS - denial of service<br />

DOS - Department of State<br />

DOS - disk operating system<br />

DOSFAN - Department of State Foreign Affairs Network<br />

DOT - Department of Transportation<br />

DOT - display outgoing transfer<br />

DOW - data orderwire<br />

DP - data processing<br />

DP - dial pulse<br />

DPA - data processing activities<br />

DPA - delegation of procurement authority<br />

DPA - dual phone adapter<br />

DPAS - defense property accounting system<br />

DPBX - digital private branch exchange<br />

DPC - dual power converter<br />

DPCM - differential pulse code modulation<br />

DPI - data processing installation<br />

DPI - dots per inch<br />

DPM - Digital Phone Multiplexer<br />

DPM - (Domain Permit Map) - A mechanism used to customize the<br />

access level that one domain has to another domain through the<br />

gateway node (for example, whether calls can pass through the<br />

domain). Also used to customize the access nodes in other<br />

domains have to nodes in the domain (for example whether a

---

node in another domain can display call path information for<br />

calls).<br />

DPMA - Data Processing Management Association<br />

DPNSS - digital private network signaling system<br />

DPP - distributed parallel processing<br />

DPP - data patch panel<br />

DPPS - defense procurement pay system<br />

DPS - document processing system<br />

DPS - data processing subsystem<br />

DPSK - differential phase-shift keying<br />

DPT - dynamic packet transport<br />

DPU - data path unit<br />

DQDB - distributed queue dual bus<br />

DQI - digital quartz inertial<br />

DQPSK - differential quadrature phase-shift keying<br />

DR - data requirement<br />

DR - disaster recovery<br />

DR - digital radio<br />

DR - digital receiver<br />

DRA - Defence Research Agency (UK)<br />

DRAM - dynamic r<strong>and</strong>om access memory<br />

DRAS - defense retiree <strong>and</strong> annuitant pay system<br />

DRASH - Deployable Rapid Assembly Shelter, Hospital<br />

DRAW - direct read-after-write<br />

DRDA - distributed relational database architecture<br />

DRDW - direct read-during-write<br />

DREAR - division rear<br />

DREN - defense research <strong>and</strong> engineering network<br />

DRFM - digital radio frequency memories<br />

DRM - distributed resource management<br />

DRS - deficiency reporting system<br />

DRS - deployable Red switch, Defense RED Switch<br />

DRS - digital red switch<br />

DRSI - destination station routing indicator<br />

DRSN - Defense Red Switch Network<br />

DRTC - designated reporting technical control<br />

DS - data segment<br />

DS - digital signal<br />

DS - Digital Switch<br />

DS-3 - 90 Mbps<br />

DS - digital signal<br />

DS - direct support<br />

DS/GS - Direct Support/General Support<br />

DS0 - (Digital Signal Level 0) - Bell System terminology for the 64<br />

kbps signal (1 voice frequency channel).<br />

DS0A - Module - This module connects to equipment that meets EIA<br />

or CCITT st<strong>and</strong>ards for synchronous data transmission.<br />

DS0B - An AT&T DDS st<strong>and</strong>ard that specifies a means of<br />

multiplexing several subrate data channels within one DS0. Five<br />

Page 33 of 106<br />

9.6, ten 4.8, or twenty 2.4 kbps subrate channels may be<br />

multiplexed within one DS0.<br />

DS0B - Module - A synchronous data server module that converts<br />

DS0B channels (or DS0 in DS0B format) to CRM-formatted<br />

subrate data channels.<br />

DS1 - (Digital Signal Level 1) - When 24 DS0s (a digroup) are<br />

combined with sync bits, the result is a DS1. Bell System<br />

terminology for the 1.544 Mbps signal carried on a T1 line (24<br />

voice frequency channels/1 T1).<br />

DS2 - (Digital Signal Level 2) - A 6.312 Mbps signal that serves as a<br />

data source, destination, or both. An example is a router or a<br />

channel extender.<br />

DS3 - (Digital Signal Level 3) - A 44.736 Mbps signal that serves as<br />

a data source, destination, or both. An example is a router or a<br />

channel extender.<br />

DS4 - (Digital Signal Level 4) - A 274.176 Mbps signal that serves as<br />

a data source, destination, or both. An example is a router or a<br />

channel extender.<br />

DSA - dial service assistance<br />

DSA - digital signature algorithm (NIST)<br />

DSA - directory service agent<br />

DSACS - defense st<strong>and</strong>ard ammunition computer system<br />

DSAMS - defense security assistance management system<br />

DSAO - design structuring <strong>and</strong> allocation optimization<br />

DSAP - Destination Service Access Point<br />

DSB - double sideb<strong>and</strong><br />

DSB-RC - double sideb<strong>and</strong> reduced carrier<br />

DSB-SC - double sideb<strong>and</strong> suppressed carrier<br />

DSB - 1. Digital In-B<strong>and</strong> Trunk Signaling Buffer; 2. digital signaling<br />

buffer; 3. division signal battalion<br />

DSBL - disable<br />

DSBMSC - DISN Switch/B<strong>and</strong>width Manager Services-CONUS<br />

DSC - Decision Support Center<br />

DSC - digital scan converter<br />

DSC - digital selective calling<br />

DSCNA - Digital Scanner A<br />

DSCNB - Digital Scanner B<br />

DSCS - Defense Satellite Communications System<br />

DSCSOC - DSCS operations center<br />

DSDI - Digital Simple Data Interface<br />

DSDN - distributed software development network<br />

DSE - data storage equipment<br />

DSE - data switching exchange<br />

DSEA - display station emulation adapter<br />

DSG - Digital Signal Generator<br />

DSI - defense simulation internet<br />

DSI - delivered source instruction(s)<br />

DSI - (Digital Speech Interpolation) - A method of compressing<br />

speech that takes advantage of pauses in speech <strong>and</strong> the halfduplex<br />

nature of conversation to provide up to 2:1 compression<br />

over ADPCM (Adaptive Differential Pulse Code Modulation), for a<br />

total of up to 4:1 voice compression.<br />

DSID - Deployed Security Interdiction Device<br />

DSIS - Distributed Support Information St<strong>and</strong>ard

---

DSL - dynamic simulation language<br />

DSL - Digital Subscriber Line. Typically refers to an ISDN line or a T-<br />

1 line, although the term is also frequently used to mean the next<br />

generation beyond ISDN. Sometimes xDSL is used to indicate<br />

that the writer is referring to any of a number of emerging DSL<br />

technologies.<br />

DSLAM - digital subscriber line access multiplexer<br />

DSM - dedicated security mode<br />

DSMA - digital sense multiple access<br />

DSMAC - digital scene-matching area correlation<br />

DSmP - digital signal microprocessor<br />

DSN - deep space network (NASA)<br />

DSN - Defense Switched Network<br />

DSNET - Defense Secure Network<br />

DSOE - deployment schedule of events<br />

DSOK - DSVT OTAT KEK<br />

DSOM - distributed system object model<br />

DSOT - DSVT OTAT TEK<br />

DSP - Defense Support Program<br />

DSP - digital signal processing (processor)<br />

DSP - digital speech processor<br />

DSPL - display system programming language<br />

DSR - data set ready<br />

DSR - digital signaling rate<br />

DSRP - Defense Space Reconnaissance Program<br />

DSRS - defense software repository system<br />

DSS - decision support system<br />

DSS - Defense Security Service (was DIS)<br />

DSS - digital signature st<strong>and</strong>ard (NIST)<br />

DSS - digital subscriber service<br />

DSS - distributed st<strong>and</strong>ard system<br />

DSS - digital signature st<strong>and</strong>ard<br />

DSS - digital small switch<br />

DSS-1 - digital small switch-1<br />

DSSA - domain specific software architecture<br />

DSSCS - Defense Special Security Communications System<br />

DSSCS - Defense Special Security Communications System<br />

DSSE - development system software environment<br />

DSSG - DISN Support Services-Global<br />

DSSI - digital storage system interconnect<br />

DSSS - direct sequence spread spectrum<br />

DSSSL - document style semantics <strong>and</strong> specification language<br />

DSSVS - DSS Validation System<br />

DSTO - Defense Science <strong>and</strong> Technology Organization<br />

DSTR - destroy<br />

DSU - (Data Service Unit) - Equipment at the customer's site that<br />

connects to a terminal or computer via an RS-232C or V.35<br />

interface. It receives the digital signals from the interface <strong>and</strong><br />

converts them to bipolar, balanced signals, <strong>and</strong> provides loopback<br />

capabilities for network maintenance (DSU loopback). The DSU<br />

<strong>and</strong> CSU are usually combined in one unit. Also see CSU.<br />

Page 34 of 106<br />

DSVD - digital simultaneous voice <strong>and</strong> data<br />

DSVF - Data System Verification Facility<br />

DSVT - Digital Secure Voice Terminal, Digital Subscriber Voice<br />

Terminal<br />

DSWA - Defense Special Weapons Agency<br />

DSX1 - The cross-connect point for DS1 signals.<br />

DSX3 - The cross-connect point for DS3 signals.<br />

DT - dial tone<br />

DTA - data terminal adapter<br />

DTA - dual trunk adapter<br />

DTA - dual trunk adapters<br />

DTA - data terminal adapter<br />

DTAC - division tactical (comm<strong>and</strong> post)<br />

DTC - digital television controller<br />

DTC - Digital Technical Control<br />

DTD - data transfer device<br />

DTD - document type definition<br />

DTDMA - distributed time division multiple access<br />

DTE - domain type enforcement<br />

DTE - Data Transmit Exchange<br />

DTE - dumb terminal emulator<br />

DTE - digital data terminal<br />

DTE - (Data Terminal Equipment) - In a communications link,<br />

equipment where a communication path begins or ends. In an<br />

RS-232C connection, the user device is regarded as DTE, <strong>and</strong><br />

the modem as DCE (Data Communication Equipment). When<br />

using serial communications such RS-232, V.35, or X.21, the DTE<br />

is the device sending/receiving from a modem or CSU/DSU. In<br />

contrast to DCE.<br />

DTED - Digital Terrain Elevation Data<br />

DTEL - digital terrain elevation data<br />

DTF - digital training facility<br />

DTG - Digital Transmission Group<br />

DTG - Date Time Group<br />

DTG - digital trunk group<br />

DTGSM - digital trunk group-surface mount<br />

DTH - Direct-To-Home<br />

DTH - down-the-hill<br />

DTH - DMS transition hub<br />

DTH - DMSA transition hub<br />

DTHR - down-the-hill radio<br />

DTIC - Defense Technical Information Center<br />

DTLS - descriptive top level specification<br />

DTM - data transfer module<br />

DTM - Display Traffic Metering<br />

DTMF - Dual Tone Multi Frequency. The st<strong>and</strong>ard tone-pairs used<br />

on telephone terminals for dialing using in-b<strong>and</strong> signaling. The<br />

st<strong>and</strong>ards define 16 tone-pairs (0-9, #, * <strong>and</strong> A-F) although most<br />

terminals support only 12 of them (0-9, * <strong>and</strong> #). These are also<br />

sometimes referred to as "Touch Tones" (actually a copyrighted<br />

trade name held by AT&T). Note that while digital data terminals<br />

have the same symbols, ISDN uses "common channel signaling"<br />

(over the D channel) <strong>and</strong> therefore does not necessarily generate

---

any tones at all. However many terminals still generate the tones<br />

since they will still be used on occasion to access services (such<br />

as voicemail or automated attendant) at the far end using in-b<strong>and</strong><br />

tones.<br />

DTMP - data technical management panel<br />

DTN - data transmission network<br />

DTOC - Division Tactical Operations Center<br />

DTP - Defense Technology Plan<br />

DTR - data terminal ready<br />

DTR - display trunks addresses<br />

DTRS - defense transportation payment system<br />

DTS - data transfer system<br />

DTS - defense transportation system<br />

DTS - dedicated transmission service (GSA)<br />

DTS - digital termination service<br />

DTS - Diplomatic Telecommunications Service (DOS)<br />

DTS-W - Defense Telecommunications Service-Washington<br />

DTS - Distributed Time Service<br />

DTSC - DISN Transmission Services-CONUS<br />

DTSS - digital topographic support system (Army)<br />

DTSS - digitized terrain support system<br />

DTTN - distributed tactical test network<br />

DTTS - defense transportation tracking system<br />

DTU - data transfer unit<br />

DTV - desktop video<br />

DTVC - desktop video conferencing<br />

Dual - Agent - An SNMP agent that supports the native Promina<br />

node as well as a configured set of IDNX nodes.<br />

Dual - AMI Interface Card - This card is used with the TMCP (Two-<br />

Megabit Channelized Port) module in a system requiring a bipolar<br />

CEPT interface. The interface accepts bipolar CCITT G.703/704formatted,<br />

HDB3-coded signals.<br />

DUAT - direct user access terminal<br />

DUI - data use identifier<br />

DUITS - digital, ubiquitous, interoperable, transparent <strong>and</strong> secure<br />

DUSC - directory update service center<br />

DVB - digital video broadcast<br />

DVC - digital video cassette<br />

DVD - digital versatile (video) disk<br />

DVE - distributed virtual environment<br />

DVI - digital video interactive<br />

DVITS - digital video imagery transmission system<br />

DVL - direct voice link<br />

DVMA - direct virtual memory access<br />

DVMRP - Distance-Vector Multicast Routing Protocol<br />

DVOW - Digital Voice Orderwire<br />

DVP - digital video processor<br />

DVS - DISN Video Services<br />

DVSG - DISN video services-global<br />

DVSN - DISN Video Services Network<br />

Page 35 of 106<br />

DWDM - dense wavelength division multiplexing<br />

DWTS - Digital Wideb<strong>and</strong> Transmission System<br />

DXF - drawing (digital) exchange format<br />

DXI - data exchange interface<br />

Dynamic - Adaptive Routing - Dynamic adaptive (or alternate)<br />

routing allows each call to be set up dynamically across any<br />

available route. Every call is routed across its optimal path <strong>and</strong><br />

avoids congestion or failures in the network.<br />

Dynamic - B<strong>and</strong>width Allocation - This feature allows the total bit<br />

rate of the multiplexer tail circuits to exceed the b<strong>and</strong>width of the<br />

network trunk. This is allowable since the multiplexer only assigns<br />

channels on the network trunk to tail circuits that are transmitting.<br />

E<br />

E-FOG-M - enhanced fiber-optic guided missile<br />

E-O - electro-optic<br />

E-E - end-to-end (encryption required)<br />

E-TGMOW - enhanced transmission group module orderwire<br />

E-3 - end-to-end encryption<br />

E - end-to-end<br />

E-EUL - KY-67 control logic PWA<br />

E-GFV - RED I/O PCB in KG-94()/-194()<br />

E-mail - electronic mail<br />

E-TGMOW - enhanced transmission group module orderwire<br />

E&M - ear <strong>and</strong> mouth (receive <strong>and</strong> transmit leads of a signaling<br />

system)<br />

E&M - Signaling - A signaling method in which communication<br />

between a portion of a circuit <strong>and</strong> a separate signaling unit is<br />

accomplished using E <strong>and</strong> M leads. The E lead receives open or<br />

ground signals from the signaling unit <strong>and</strong> the M lead transmits<br />

battery or ground signals to the signaling unit.<br />

E1 - 2.048 Mbps<br />

E1 - A common type of digital telephone trunk widely deployed<br />

outside the US <strong>and</strong> Canada. Has 30 available 64Kbps channels<br />

(called DS0’s) plus a B channel <strong>and</strong> a sync/control channel.<br />

E2PROM - electrically erasable programmable read-only memory<br />

E3 - end-to-end encryption<br />

E3 - CEPT signal that carries 16 CEPT E1s <strong>and</strong> overhead. Effective<br />

data rate is 34.368 Mbps.<br />

E3 - Trunk Module - This module consists of hardware, firmware,<br />

<strong>and</strong> software required to connect to <strong>and</strong> control a nonsubrated E3<br />

line.<br />

EA - electronic attack<br />

EA - evolutionary acquisition<br />

EA - each<br />

EA-TJTN - Executive Agent for Theater Joint Tactical Networks<br />

EA - East Atlantic<br />

EABI - embedded-applications binary interface<br />

EAC - Echelons Above Corps<br />

EAD - end-around delay

---

EADSIM - extended air defense simulation<br />

EAF - effort adjustment factor<br />

EAR - engineering action request<br />

EAROM - electrically alterable read-only memory<br />

EAS - emergency alert system<br />

EAS - extended area service<br />

EAX - electronic automatic exchange<br />

Eb/No - energy per bit/noise spectral density<br />

EBB - Electronic Bulletin Board<br />

EBC - Executive Business Center<br />

EBCDIC - extended binary coded decimal interchange code<br />

EBONE - European IP backbone<br />

EBPP - electronic bill presentment <strong>and</strong> payment<br />

EBS - emergency broadcast system<br />

EBT - electronic benefits transfer<br />

EBX - electronic branch exchange<br />

EC - earth coverage<br />

EC - electronic combat<br />

EC - electronic commerce<br />

EC - error control<br />

EC&D - electromagnetic cover <strong>and</strong> deception<br />

EC/EDI - electronic commerce/electronic data interchange<br />

ECA - External Certificate Authorities<br />

ECAC - Electromagnetic Compatibility <strong>and</strong> Analysis Center<br />

ECAT - Electronic Commerce Acquisition Teams<br />

ECB - echelons corps <strong>and</strong> below<br />

ECC - elliptic curve cryptography<br />

ECC - electronically controlled coupling<br />

ECC - Elliptic Curve Cryptography<br />

ECC - error correcting code<br />

ECCIS - engineer comm<strong>and</strong> <strong>and</strong> control information system<br />

ECCM - electronic counter countermeasures<br />

ECCRN - emergency comm<strong>and</strong> control radio network<br />

ECF - engineering computer facility<br />

Echo - Cancellers - Cancels a discernible echo that occurs in<br />

networks where there is a delay of 10 ms or greater <strong>and</strong> there is a<br />

4-wire to 2-wire conversion.<br />

Echo - Suppressor - A device that allows transmission in only one<br />

direction at a time. They are inserted in telephone circuits to<br />

attenuate echoes on long distance circuits. They are not desirable<br />

in data communications circuits because they increase the<br />

turnaround time.<br />

ECHOX - Module - An echo canceller server module, with channel<br />

support for up to 32 IDNX or Promina digital voice ports, that<br />

eliminates the need for an external echo-canceling device.<br />

ECIC - Electronic Communications Implementation Committee<br />

ECL - (Emitter-Coupled Logic) - A type of microelectronic circuit<br />

design that is noted for its extremely fast switching speeds. ECL<br />

is a variety of bipolar transistor.<br />

ECM - electronic countermeasure<br />

ECMA - European Computer Manufacturers Association<br />

Page 36 of 106<br />

ECMC - emergency crisis management system<br />

ECP - emergency comm<strong>and</strong> precedence<br />

ECPA - Electronic Communications Privacy Act<br />

ECPI - Electronic College of Process Innovation<br />

ECPM - electronic commerce processing node<br />

ECRC - Electronic Commerce Resource Center<br />

ECS - electronic customer service<br />

ECSA - Exchange Carriers St<strong>and</strong>ards Association<br />

ECSR - enhanced commercial security requirements<br />

ECU - environmental control unit<br />

ECU - end cryptographic unit<br />

ECV - exp<strong>and</strong>ed capacity vehicle<br />

ECWG - emergency communications working group<br />

ED - error density<br />

EDA - electronic design automation<br />

EDA - electronic document access (DOD)<br />

EDAC - error detection <strong>and</strong> correction<br />

EDACS - enhanced digital access communications system<br />

EDC - enhanced data correction<br />

EDGAR - electronic data gathering, analysis <strong>and</strong> retrieval<br />

EDI - electronic data interchange<br />

EDICT - electronic data interchange catalog transactions<br />

EDIF - electronic data (design) interchange format<br />

EDIFACT - electronic data interchange for administration, commerce<br />

<strong>and</strong> transportation<br />

EDIINT - electronic data interchange internet integration<br />

EDM - enterprise distribution manager<br />

EDMICS - engineering data management information & control<br />

system<br />

EDO - extended data out<br />

EDODRAM - extended-data-out DRAM<br />

EDP - electronic data processing<br />

EDRAM - enhanced (extended) DRAM<br />

EDTV - extended definition television<br />

EEC - extended error correction<br />

EEFI - essential elements of friendly information<br />

EEI - essential elements of information<br />

EEM - extended memory management<br />

EENET - emergency education network<br />

EEPROM - electrically erasable programmable read-only memory<br />

EES - Escrow Encryption St<strong>and</strong>ard<br />

EETF - Electronic Equipment Test Facility<br />

EFA - extended file attribute<br />

EFCS - electronic filmless camera system<br />

EFDD - external floppy disk drive<br />

EFF - Electronic Frontier Foundation<br />

EFI - electromechanical frequency interference<br />

EFIS - electronic flight information system (FAA)

---

EFL - emitter follower logic<br />

EFMC - electronic field medical card<br />

EFMS - (Expert Fault Management Service) - This service uses<br />

expert systems based technology to automate the node, CSU,<br />

<strong>and</strong> T-span fault identification, diagnosis, <strong>and</strong> repair<br />

recommendation. This powerful network management service<br />

provides clients with unparalleled application availability, while it<br />

significantly lowers network operations costs.<br />

EFOIA - Electronic Freedom of Information Act (amendments 1996)<br />

EFP - exponential floating point<br />

EFT - electronic funds transfer<br />

EFTO - encrypt for transmission only<br />

EFTS - electronic funds transfer system<br />

EFVS - electronic fighting vehicle system<br />

EGA - enhanced graphics adapter<br />

EGIS - embedded GPS navigation system (Army)<br />

EGP - enhanced graphics processor<br />

EGP - Exterior Gateway Protocol<br />

EGRU - EPLRS ground radio unit<br />

EGRU - EPLRS grid reference unit<br />

EHDM - enhanced hierarchical development methodology<br />

EHF - extremely high frequency<br />

EHLLAPI - extended high-level language application programming<br />

interface<br />

EHMD - exp<strong>and</strong>ed helmet mounted display<br />

EI - enterprise integration<br />

EIA - Electronic Industries Association<br />

EIAJ - Electronic Industries Association Japan<br />

EIC - Electronic Imaging Center (USAF)<br />

EIDE - Enhanced Integrated Drive Electronics<br />

EIDS - electronic information delivery system<br />

EIGRP - enhanced interior gateway routing protocol<br />

EIM - electronic imaging management<br />

EIM - enterprise information management<br />

EINET - enterprise integration network<br />

EIRP - effective isotropic radiated power (satcom)<br />

EIS - executive information system<br />

EISA - extended industry st<strong>and</strong>ard architecture<br />

EISS - EUCOM intelligence support system<br />

EKMS - Electronic Key Management System<br />

EKTS - electronic key telephone system<br />

EL - east Atlantic<br />

ELAWS - engineering logistics automated workflow system<br />

ELF - extremely low frequency<br />

ELINT - electronic intelligence<br />

ELIST - enhanced logistics intra-theater support tool<br />

ELMR - enhanced l<strong>and</strong> mobile radio<br />

ELPP - equal level patch panel<br />

ELS - emitter location system<br />

ELSEC - electronic security<br />

Page 37 of 106<br />

ELVIS - enhanced link visual information system<br />

EM - electromagnetic<br />

EM - Encryption Module<br />

EM - element management system<br />

EM - encryption manager<br />

EMA - Electronic Messaging Association<br />

EMAP - electronic map<br />

EMC - (Electromagnetic Compatibility) - The ability of electronic<br />

equipment or systems to operate in their intended operational<br />

environments without causing or suffering unacceptable<br />

degradation because of unintentional electromagnetic radiation or<br />

response.<br />

EMCAP - electromagnetic capability analysis program<br />

EMCON - emission control<br />

EMD - electronic map display<br />

EMF - electromagnetic field<br />

EMFCS - enhanced mortar fire control system<br />

EMI - electronic imaging management<br />

EMI - (Electromagnetic Interference) - Any electromagnetic<br />

interference, periodic or r<strong>and</strong>om, narrow or broadb<strong>and</strong> that may<br />

have a disturbing influence on devices exposed to it.<br />

EMIC - Electronic Multi-Media Image Center (Army)<br />

EMLTU - E&M line termination unit<br />

EMM - exp<strong>and</strong>ed memory manager<br />

EMP - (Electromagnetic Pulse) - Broadb<strong>and</strong>, high-intensity, transient<br />

electromagnetic fields such as those produced by lightning <strong>and</strong><br />

nuclear explosions.<br />

EMPI - enterprise master person index<br />

EMR - electromagnetic radiation<br />

EMS - electronic mail system<br />

EMSEC - emission (emanations) security<br />

EMT - emergency management team<br />

EMTI - enhanced moving target indicator<br />

Emulation - The imitation of one device by another.<br />

EMUT - enhanced manpack (miniaturized) UHF terminal<br />

EMV - electromagnetic vulnerability<br />

EMW - electromagnetic warfare<br />

EN - electronic notebook<br />

ENA - enhanced neighbor acquisition<br />

ENA - enable<br />

ENCATT - Engineering Combined Arms Tactical Trainer<br />

Encoder - Any device that modifies information into the desired<br />

pattern of form for a specific method of transmission.<br />

Encryption - In security, the ciphering of data by applying an<br />

algorithm to plain text in order to convert it to cipher text.<br />

End-to-End - Connectivity - The ability of one node to communicate<br />

to another by means of shared st<strong>and</strong>ards or, in more complex<br />

networks, by interpreting different st<strong>and</strong>ards.<br />

ENEWS - effectiveness of naval electronic warfare systems<br />

engr - engineer<br />

ENIU - enhanced network interface unit<br />

ENQ - inquiry

---

ENR - engineer<br />

ENS - emergency notification system<br />

ENSCE - enemy situation correlation element<br />

ENT - enter<br />

ENWGS - enhanced naval warfare gaming system<br />

EO - electro-optics<br />

EO - end office<br />

EO/FLIR - electro-optic/forward looking infrared<br />

EO/IR - electro-optic/infrared<br />

EOA - end of address<br />

EOB - electronic order of battle<br />

EOB - end of block<br />

EOF - end of file<br />

EOL - end of link<br />

EOL - end of option list<br />

EOM - end of message<br />

EOS - earth observing system (NASA)<br />

EOSDIS - earth observing system data information system (NASA)<br />

EOT - end of transmission<br />

EOTADS - electro-optical target acquisition & display system<br />

EOW - Engineering Orderwire<br />

EOWSP - EOW signal processor<br />

EP - electronic protect (protection)<br />

EP - electronic publishing<br />

EP - East Pacific<br />

EPA - enhanced performance architecture<br />

EPABX - electronic private automatic branch exchange<br />

EPCA - Electronic Communications Privacy Act<br />

EPDS - electronic processing <strong>and</strong> dissemination system<br />

EPDS - electrical power <strong>and</strong> distribution system<br />

EPG - electronics proving ground<br />

EPIC - Electronic Privacy Information Center<br />

EPIC - El Paso Intelligence Center (DEA)<br />

EPL - effective privilege level<br />

EPL - evaluated products list<br />

EPLD - electrically programmable logic device<br />

EPLD - erasable programmable logic device<br />

EPLRS - Enhanced Position Location Reporting System<br />

EPM - Electronic Protection Measure<br />

EPMIS - emergency preparedness management information system<br />

EPOS - electronic point of sale<br />

EPOSE - electronic point of sale enhanced<br />

EPP - enhanced parallel port<br />

EPROM - erasable programmable read-only memory<br />

EPROM - <strong>and</strong> EEPROM (Erasable <strong>and</strong> Electrically Erasable<br />

Programmable Read-Only Memory) - The former is erased by<br />

ultraviolet light, <strong>and</strong> the latter is erased by electricity.<br />

EPS - Electronic Posting System<br />

EPSCS - enhanced private switched communications service<br />

EPSS - electronic performance support system<br />

EQ - equate<br />

Equalization - The process of reducing the effects of amplitude,<br />

frequency, <strong>and</strong>/or phase distortion of a circuit by inserting<br />

networks to compensate for the difference in attenuation <strong>and</strong>/or<br />

time delay at various frequencies in the transmission b<strong>and</strong>.<br />

equip - equipment<br />

ERA - entity-relationship-attribute<br />

EREC - error resilient entropy coding<br />

ERF - electronic remote fill<br />

ERFAK - emergency response fly-away kit (NCS)<br />

ERIC - Educational Resources Information Center [Internet]<br />

ERLink - emergency response link (NCS)<br />

ERLL - enhanced run length limited<br />

ERM - electronic records management<br />

EROM - erasable read-only memory<br />

EROS - earth resources observations systems<br />

ERP - effective radiated power<br />

ERP - enterprise resource planning<br />

Error-Free - Seconds - Error performance of the T1 service<br />

expressed in terms of the percentage of seconds in a day in<br />

which there are no errors.<br />

ERS - external reference specification<br />

ERT - Emergency Response Team<br />

ES - electronic support (see ESM)<br />

ESA - enterprise systems architecture<br />

ESA - Electrical Surge Arrestor<br />

ESAI - exp<strong>and</strong>ed situational awareness insertion<br />

ESAR - electromagnetic spectrum allocation request<br />

ESD - electronic software distribution<br />

ESD - Electrostatic-Sensitive Device<br />

ESDA - electronic system design automation<br />

ESDI - enhanced small device interface<br />

ESDIS - earth science <strong>and</strong> distributed information system<br />

ESEP - enhanced service engineering plan (NCS)<br />

ESF - (Extended Super Frame) Registers - ESF allow bit error<br />

detection. The card stores bit error information for a digroup or<br />

bundle that is configured for ESF framing, including failed second<br />

statistics, errored second statistics, <strong>and</strong> the total of the error<br />

events.<br />

ESF - Extended Superframe - A type of Line format supported on T1<br />

circuits. The Telco determines the line format <strong>and</strong> line encoding of<br />

your line. See Line Format<br />

ESI - extremely sensitive information<br />

ESIP - enhanced system improvement program<br />

ESIS - equipment string information system<br />

ESM - electronic support measures<br />

ESMR - expert systems message router<br />

ESN - electronic serial number<br />

ESN - electronic switched network<br />

ESO - extended security option<br />

Page 38 of 106

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ESOP - enhanced switch operations program<br />

ESOP - enhanced switch operator position<br />

ESP - encapsulation security protocol<br />

ESP - enhanced services providers<br />

ESP - enterprise server platform<br />

ESP - enterprise service provider<br />

ESP - essential service protection<br />

ESP - external service provider<br />

ESS - electronic switching system<br />

ESS - enterprise scheduling system<br />

ESS - escrow encryption st<strong>and</strong>ard<br />

ESSA - Electronic System Security Assessment (USAF)<br />

ESTEC - European Space Research <strong>and</strong> Technology Center<br />

ESTIC - enhanced st<strong>and</strong>ard interface controller<br />

ET - earth terminal<br />

ET - embedded trainer<br />

ETA - electronic test automation<br />

ETACS - extended total access for communications<br />

ETCT - external transmit cipher text<br />

ETD - electronic transfer device<br />

ETDMA - extended time division multiple access<br />

ETF - electronic test facility<br />

ETGMOW - enhanced transmission group module orderwire<br />

ETICS - embedded tactical information control system<br />

ETL - endorsed tools list<br />

ETL - enhanced transceiver logic<br />

ETM - Electronic Technical Manual<br />

ETMS - enhanced traffic management system (FAA)<br />

ETN - electronic t<strong>and</strong>em network<br />

ETOM - electron-trapping optical memory<br />

ETPL - endorsed TEMPEST products list<br />

ETRAC - Enhanced Tactical Radar Correlator<br />

ETS - 300 - The pan European ISDN protocol st<strong>and</strong>ardized by ETSI.<br />

This protocol is used throughout Europe <strong>and</strong> has been adopted in<br />

many other countries outside the USA & Canada. See MSN<br />

ETSI - European Telecommunications St<strong>and</strong>ards Institute<br />

ETSI - exp<strong>and</strong>ed time slot interchange<br />

ETSSP - enhanced tactical satellite signal processor<br />

ETUT - Enhanced Tactical User’s Terminal<br />

ETXC - external transmit clock<br />

EU - end user<br />

EUAAV - endurance unmanned aerial vehicle<br />

EUATMS - european unified air traffic management system<br />

EUB - Essential User Bypass<br />

EUCOM - US European Comm<strong>and</strong><br />

EULA - end-user license agreement<br />

EUMETSAT - European Organization for the Exploitation of<br />

Meteorological Satellites<br />

Page 39 of 106<br />

EUR - Europe<br />

EUR - Europe<br />

Euro - ISDN - See ETS 300<br />

EUROBIT - European Association of Manufacturers of Business<br />

Machines <strong>and</strong> Information Technology Industry<br />

EUV - extreme ultra violet<br />

Event - An informational message from the node that is stored in an<br />

Event log. Events are identified by a type <strong>and</strong> subtype (e.g., 1.3).<br />

Event - Log - Provides a log of activities on the node such as alarms,<br />

operator actions, call detail records, diagnostic reports, <strong>and</strong> other<br />

events affecting operations, analysis, <strong>and</strong> maintenance. Each<br />

node has its own Event log <strong>and</strong> one or two nodes may also be<br />

designated to hold the Network Event log, which logs events of<br />

network significance that occur on all nodes within a domain.<br />

Event - Parameter - Used to tailor the logging of events to suit<br />

network requirements.<br />

EVGA - extended video graphics array<br />

EW - early warning<br />

EW - electronic warfare<br />

EW-OPSEC - electronic warfare-operations security<br />

EW/I - electronic warfare intelligence<br />

EW/RSTA - Electronic Warfare-Reconnaissance Surveillance <strong>and</strong><br />

Target Acquisition<br />

EWBMA - electronic warfare battle management aids<br />

EWCC - electronic warfare coordination center<br />

EWCM - electronic warfare coordination module<br />

EWO - Electronic Warfare Officer<br />

EWPE - electronic warfare preprocessing elements<br />

EWRL - Electronic Warfare Reprogrammable Library (Navy)<br />

EWVA - electronic warfare vulnerability<br />

EWW - enterprisewide web<br />

EX - expansion shelf<br />

Exchange - Another name for a Central Office. See CO<br />

EXJAM - expendable jammer<br />

EXORD - JTF Execute Order<br />

Expansion - Unit - On the Promina 400, upgrades a 12-slot version<br />

to a 24-slot version.<br />

Expert - Comm<strong>and</strong> Mode - Used to bypass the Functional, Action,<br />

<strong>and</strong> Object Operator Interface menus <strong>and</strong> enter comm<strong>and</strong>s<br />

directly.<br />

EXPLAN - exercise plan<br />

EXS - (Expansion Shelf) - A 16-slot shelf containing the feature <strong>and</strong><br />

common equipment modules <strong>and</strong> BX cards mounted in a Promina<br />

800 cabinet only. Requires external power supplies <strong>and</strong> tray.<br />

EXT - external<br />

ext - extension<br />

Extended - Superframe - See ESF<br />

External - Alarm Threshold - Alarm level required to generate an<br />

audible alarm on the optional alarm panel.<br />

External - IP Entity - An external IP entity is any network component<br />

that is connected directly or indirectly to the PSM's external<br />

interface. It is capable of transmitting IP routing packets to or from<br />

any Promina node in the Promina network. An external IP entity<br />

can therefore be a device such as a router or workstation/PC/Mac<br />

that is connected via an external Ethernet interface.

---

External - Timing - A node accepting clock from a source that is<br />

external to the node (for example, DACS Telco-provided clock).<br />

F - Flash<br />

F - fahrenheit<br />

FA - field artillery<br />

F<br />

FAA - Federal Aviation Administration<br />

FAADC2 - forward area air defense comm<strong>and</strong> <strong>and</strong> control (Army)<br />

FAADC3I - Forward Area Air Defense Comm<strong>and</strong>, Control,<br />

Communications, <strong>and</strong> Intelligence<br />

FAADS - forward area air defense system<br />

FAAR - forward area alerting radar<br />

FAATSAT - FAA telecommunications satellite<br />

FAC - File Access Code<br />

FACNET - federal acquisition computer network<br />

FACP - forward air control party<br />

FADAC - field artillery digital automated computer<br />

FADC2I - forward air defense comm<strong>and</strong>, control, <strong>and</strong> intelligence<br />

FAEWS - fleet airborne electronic warfare system<br />

FAISS - FORSCOM automated intelligence support system<br />

FALCON - frequency agile low coverage netted<br />

FAMSIM - family of simulations (simulators)<br />

Fan - Unit - Cooling device for the node.<br />

FANS - future air navigation system<br />

FANS2 - future air navigation systems Phase 2 (FAA)<br />

FAP - file access protocol<br />

FAPES - force augmentation planning <strong>and</strong> execution system (JCS)<br />

FAPM - functional activity program manager (DOD)<br />

FAQ - frequently asked questions (Internet)<br />

FAR - federal acquisition regulation<br />

FARA - Federal Acquisition Reform Act<br />

FASA - Federal Acquisition Streamlining Act<br />

FASC - Fire <strong>and</strong> Air Support Center<br />

FASC - Forward Area Signal Center<br />

FASIC - function-<strong>and</strong> algorithm-specific IC<br />

FAST - federal acquisition services for technology (GSA/FTS)<br />

FAST - flow analysis system for TRANSCOM<br />

FAST - forward area secondary imagery dissemination <strong>and</strong> tactical<br />

related applications (Army)<br />

FASTC - Foreign Aerospace Science <strong>and</strong> Technology Center<br />

(USAF)<br />

Fastload - A new type of neighbor load process that makes use of<br />

more trunk b<strong>and</strong>width than is normally available for intertask<br />

message exchanging.<br />

FAT - file allocation tables<br />

FATE - federated assessment <strong>and</strong> targeting enhancement (USAF)<br />

Page 40 of 106<br />

FATT - Forward Area Teletype<br />

Fault - Tolerant - A CPU or network that is resistant to software<br />

errors, power failures, <strong>and</strong> disk crashes.<br />

FAX - facsimile<br />

FBCB2 - Force XXI Battle Comm<strong>and</strong> Battalion/Brigade <strong>and</strong> Below<br />

FBD - functional binary decomposition<br />

FBIS - Foreign Broadcast Information Service<br />

FBL - Federated Battle Labs<br />

FBS - finance battlefield system<br />

FC - fiber channel<br />

FC-AL - fiber channel-arbitrated loop<br />

FC-EL - fiber channel-enhanced loop<br />

FC2S - FORSCOM C2 system<br />

FCA - functional configuration audit<br />

FCB - file control block<br />

FCC - Federal Communications Commission<br />

FCC - Flight Control Center (computer)<br />

FCC - Federal Communications Commission<br />

FCFS - first come first serve<br />

FCI - Foreign Counterintelligence (FBI)<br />

FCLC - fiber channel loop community<br />

FCOM - Joint Forces Comm<strong>and</strong><br />

FCRB - future change review board<br />

FCS - (Frame Check Sequence) - In bit-oriented protocols, a 16-bit<br />

field that contains transmission error-checking information, usually<br />

appended at the end of a frame. Also used in conjunction with<br />

First Customer Ship; the date that a new product is first shipped<br />

to a customer.<br />

fctn - function<br />

FD - failure density<br />

FD - floppy disk<br />

FDC - Fire Direction Center<br />

FDC - floppy disk controller<br />

FDC - First Digital Corps<br />

FDCC - Fleet Deployable Communications Center<br />

FDD - frequency division duplex<br />

FDD - first digital division<br />

FDDI - Fiber Distributed Data Interface<br />

FDDM - Fire Direction Data Manager<br />

FDDS - flag display distribution system<br />

FDI - fault detection isolation<br />

FDL - facility data link<br />

FDM - formal development methodology<br />

FDM - Functional Data Manager<br />

FDM - (Frequency Division Multiplexing) - The transmission of two or<br />

more signals over a common path by using a different frequency<br />

b<strong>and</strong> for each signal.<br />

FDMA - frequency division multiple access<br />

FDMIS - force development management information system<br />

FDMP - Full Duplex Message Protocol

---

FDO - flexible deterrent option<br />

FDR - future data radio<br />

FDRR - flexible disc recorder reproducer<br />

FDS - fire direction system<br />

FDS - fault detection system<br />

FDSE - full duplex switched Ethernet<br />

FDSL - fixed directory subscriber list<br />

FDUL - fixed directory unit list<br />

FDX - full duplex<br />

FEA - functional economic analysis<br />

Feature - Modules - These modules (such as trunk, voice, <strong>and</strong> data)<br />

add capabilities to nodes <strong>and</strong> tailor nodes to meet customers'<br />

specific requirements. All nodes have common equipment, but<br />

they do not necessarily have feature modules.<br />

FEBA - forward edge of the battle area<br />

FEBE - (Far End Block Error) - An error indication that is provided for<br />

in the C-bit parity format.<br />

FEC - Forward Error Correction<br />

FECAT - Federal Electronic Commerce Acquisition Team<br />

FECC - Federal Emergency Communications Coordinator<br />

FECTA - forward error correction transmission adapter<br />

FED - field emission display (device)<br />

FED-STD - Federal St<strong>and</strong>ard<br />

FEDCAC - Federal Computer Acquisition Center (GSA/FTS)<br />

FEDCIRC - Federal Computer Incident Response Capability<br />

FEDD - family of electronic deceptive devices<br />

Fedsim - Federal Systems Integration <strong>and</strong> Management Center<br />

FEMA - Federal Emergency Management Agency<br />

FEN - field engineering notice<br />

FEP - front end processor<br />

FEPI - front-end programming interface<br />

FER - final evaluation report<br />

FES - force entry switch<br />

FET - field effect transistor<br />

FEWS - follow-on early warning system<br />

FEWS - future early warning system<br />

FEX - federal internet exchange<br />

FFD - frequency fill device<br />

FFT - fast Fourier transform<br />

FG - frame grabber<br />

FGDC - Federal Geographic Data Committee<br />

FGIPC - Federation of Government Information Processing Councils<br />

FGRT - Fixed Ground Receive Terminal<br />

FH - frequency hopping<br />

FHMA - frequency hop multiple access<br />

FHMX - frequency hopping multiplexer<br />

FHSS - frequency hopped spread spectrum<br />

FIA - future imagery architecture<br />

FIABS - financial inventory accounting <strong>and</strong> billing system<br />

Page 41 of 106<br />

Fiber - Optic Cable - A data transmission medium consisting of glass<br />

fibers. It offers increased b<strong>and</strong>width. LEDs send light to a receiver<br />

that converts the light into electrical signals.<br />

FIC - Federal Information Center (GSA/FTS)<br />

FIC - fleet intelligence center<br />

FICCS - First in Comm<strong>and</strong> <strong>and</strong> Control System<br />

FICO - Fingerprint Image Conversion Operation (FBI)<br />

FICS - FAA Integrated Communications System<br />

FICS - fingerprint image capture system (FBI)<br />

FIDNET - Federal Intrusion Detection Network (see AIDC)<br />

Field - Trial Site - The location of the tests performed on product<br />

prototypes (usually in-house <strong>and</strong> select client locations). These<br />

early releases are for test purposes <strong>and</strong> are performed prior to<br />

any first customer shipment.<br />

FIF - fractal image format<br />

FIFO - first-in first-out<br />

FII - Federal information infrastructure<br />

File - Server - A CPU containing files shared by everyone connected<br />

to a network.<br />

FILO - first-in, last-out<br />

Filtering - Allows an operator to search for events of a particular<br />

kind or object such as a class of card rather than scanning<br />

through all of them.<br />

FIM - functional information manager (CIM)<br />

FIN - finish flag, TCP header<br />

FINL - initialize floppy disk<br />

FIPS - Federal Information Processing St<strong>and</strong>ard<br />

FIR - finite impulse response<br />

FIR - functional intelligence ratio<br />

FIREFLEX - flexible fire support system<br />

FIRMR - Federal Information Resources Management Regulation<br />

FIRP - Federal Internetworking Requirements Panel<br />

FIRS - Federal Information Relay Service (GSA/FTS)<br />

FIRST - Forum of Incident Response (<strong>and</strong>) Security Teams<br />

FIS - foreign intelligence service<br />

FISINT - Foreign Instrumentation Signals Intelligence<br />

FISS - foreign intelligence <strong>and</strong> security service<br />

FISSP - Federal Information Systems Support Program (GSA/FTS)<br />

FIST - fleet imagery support terminal<br />

FIST - full-crew integrated trainer<br />

FITL - fiber in the loop<br />

FIWC - Fleet Information Warfare Center<br />

FLAN - flying local area network<br />

FLAPS - force level automated planning system<br />

Flash - Memory - An in-circuit programmable non-volatile<br />

semiconductor technology applied to memory components. Flash<br />

memory is similar in application to EPROMs or what are<br />

commonly referred to as boot Proms, but flash memory has the<br />

advantage of being on-board programmable rather than being a<br />

plug-in component. Promina controller cards (PPM, PLM, <strong>and</strong><br />

PSM) use flash memory for storing system software <strong>and</strong><br />

configuration database data.<br />

FLC - Federal Laboratory Consortium

---

FLC - foreign language committee<br />

FLEWUG - Federal Law Enforcement Wireless Users Group<br />

FLIR - forward looking infrared<br />

FLIS - federal logistics information system<br />

FLOPS - floating point operations per second<br />

FLOT - forward line of own troops<br />

Flow - Control - The capability of network nodes to manage buffering<br />

schemes in order to allow devices of differing data transmission<br />

speeds to communicate with each other.<br />

FLT - fleet<br />

FLTBCST - fleet broadcast<br />

FLTCINC - Fleet Comm<strong>and</strong>er In Chief<br />

FLTSAT - fleet satellite<br />

FLTSATCOM - fleet satellite communications<br />

FM - frequency modulation<br />

FM - field manual (when followed by a number)<br />

FMEA - failure modes <strong>and</strong> effects analysis<br />

FMECA - failure mode effects <strong>and</strong> critical analysis<br />

FMF - fleet marine force<br />

FMM - frequency management module<br />

FMO - Frequency Management Office<br />

FMP - Frequency Management Plan<br />

FMS - Financial Management Service (Treasury)<br />

FMS - Forms Management System<br />

FMV - full motion video<br />

FN - feeder node<br />

FNARS - FEMA national radio system<br />

FNATS - FEMA national teletype system<br />

FNAVS - FEMA national voice system<br />

FNBDT - future narrowb<strong>and</strong> digital terminal<br />

FO - fiber optic<br />

FO - Flash Override<br />

FOA - fiber optic applique<br />

FOBC - fiber optic bulkhead connector<br />

FOC - fiber optic cable<br />

FOCA - font object content architecture<br />

FOCA - fiber optic cable assembly<br />

FOCI - foreign ownership, control or influence<br />

FOCS - fiber optic cable system<br />

FOCSI - fiber-optic control system integration<br />

FOHMD - fiber-optic helmet-mounted display/device<br />

FOIA - Freedom of Information Act<br />

FOIPA - Freedom of Information/Privacy Act<br />

FOIRL - fiber optic inter repeater link<br />

FOIU - fiber optic interface unit<br />

FOL - forward operating location<br />

FOM - fiber optic modem<br />

FOMAU - Fiber Optic Media Access Unit<br />

Page 42 of 106<br />

FOPEN - foliage penetration radar<br />

FORGN - foreign<br />

FORSCOM - US Army Forces Comm<strong>and</strong><br />

FORTAS - forward observer remote target acquisition system<br />

FORTE - fast on-orbit recording of transient events<br />

FORTRAN - formula translator<br />

FOSIC - Fleet Ocean Surveillance Information Center<br />

FOT - frequency of optimum transmission<br />

FOTLAN - fiber optic tactical LAN<br />

FOTS - fiber optic transmission system<br />

FOUO - For Official Use Only<br />

Four - Wire - A circuit path using separate pairs for send <strong>and</strong><br />

receive. This term is also used when referring to digital channels<br />

that inherently have discrete send <strong>and</strong> receive paths, regardless<br />

of the number of pairs (or other media) used.<br />

FPA - focal plane array<br />

FPCB - field-programmable circuit board<br />

FPD - flat panel display<br />

FPF - final protective fire<br />

FPGA - field programmable gate array<br />

FPI - functional process improvement<br />

FPIC - field-programmable interconnect chip<br />

FPID - field-programmable interconnect device<br />

FPIS - forward propagation ionospheric scatter<br />

FPKI - Federal Public Key Infrastructure<br />

FPL - final protective line<br />

FPLA - field programmable logic-array<br />

FPLMTS - future public l<strong>and</strong> mobile telephone services<br />

FPP - fixed path protocol<br />

FPP - floating point processor<br />

FPS - frames per second<br />

FPU - floating-point unit<br />

FQDN - fully qualified domain name<br />

FR - frequency response<br />

Fractional - T1/E1 - A fractional line is subchannel of a full T1/E1<br />

line. There are 24/31 fractional T1/E1 lines, each with a<br />

b<strong>and</strong>width of 64 kbps. This is an economical measure to fit the<br />

requirements where the full DS1 is not needed. Individual DS0<br />

slots may be switched to different services or locations. The user<br />

may provide a full DS1 from each end of the circuit, but the<br />

central office extracts only those DS0s that are paid for <strong>and</strong><br />

routes them to the required service or location.<br />

FRAD - frame relay assembler/dissembler<br />

FRAGO - fragmentary order<br />

FRAM - ferro-electric r<strong>and</strong>om-access memory<br />

Frame - (Data) - In bit-oriented protocols, data is formatted in frames<br />

for transmission. Each frame consists of a start flag followed by<br />

an address field, data field, frame check sequence, <strong>and</strong> a stop<br />

flag.<br />

Frame - (DS1/T1) - A 193-bit entity, consisting of 192 information<br />

bits (24 channels, 8 bits each) plus one framing bit. T-1 frames<br />

occur at the rate of 8000 per second. Twelve frames make a<br />

st<strong>and</strong>ard DS1/D4 format superframe. On modern ESF T-1<br />

facilities, 24 frames are used to make an Extended superframe,

---

wherein the 193rd bit in the frames is used for various functions in<br />

addition to framing.<br />

Frame Alignment Signal - The frame alignment signal (F1, F0)<br />

identifies the subframe <strong>and</strong>, accordingly, all the control-bit time<br />

slots.<br />

Frame Slip - A controlled frame slip occurs on a trunk that is not<br />

synchronously timed. When sufficient clock drift has accumulated,<br />

frame-alignment buffers on the trunk are reset.<br />

FRC - frame recovery circuit<br />

FRCS - Federal Reserve communications system<br />

freq - frequency<br />

Frequency Response - The change in attenuation with frequency<br />

relative to the attenuation at a reference frequency. Also called<br />

attenuation distortion.<br />

FRERP - federal radiological emergency response plan<br />

Friendload - The process of loading code from a friend node (a<br />

node containing the desirable software that is not directly<br />

connected to the node being loaded). Contrast with neighbor<br />

node.<br />

FRMA - functional requirements management agency (CALS)<br />

FRO - frequency reference oscillator<br />

FRP - Federal Radionavigation Plan<br />

FRP - Federal Response Plan<br />

FRPA - fixed reception pattern antenna<br />

FRPI - flux reversals per inch<br />

Fs - signal framing<br />

FSAN - full service access network<br />

FSATS - fire support automated test system<br />

FSB - fire support battalion<br />

FSC - fire support coordinator<br />

FSCATT - fire support combined arms tactical trainers<br />

FSCS - fire support control system<br />

FSDPSK - filtered symmetric differential phase-shift keying<br />

FSE - full screen editor<br />

FSE - fire support element<br />

FSEN - future small extension node<br />

FSF - Free Software Foundation<br />

FSFM - full-screen full-motion<br />

FSIC - forward sensor interface <strong>and</strong> control<br />

FSK - Frequency Shift Keying<br />

FSN - FEMA switched network<br />

FSN - full service network<br />

FSO - field security operations<br />

FSO - fire support officer<br />

FSP - functionality, security <strong>and</strong> performance<br />

FSPM - formal security policy model<br />

FSRF - flood search routing function<br />

FSSG - force service support group<br />

FSTC - Financial Services Technology Consortium<br />

FSTS - federal secure telephone service<br />

FT - fault tolerance<br />

Page 43 of 106<br />

Ft - terminal framing<br />

ft - foot, feet<br />

FT1 - fractional T1<br />

FTAM - file transfer, access <strong>and</strong> management<br />

FTDMA - frequency time-division multiple-access<br />

FTEWA - force threat evaluation <strong>and</strong> weapon assignment<br />

FTIR - Fourier transform infrared<br />

FTLS - formal top level specification<br />

FTM - File Transfer Manager<br />

FTN - fiber transmission network<br />

FTP - fiber termination panel<br />

FTP - File Transfer Protocol<br />

FTS - Federal Technology Service (GSA/FTS)<br />

FTS - Federal Telecommunications System<br />

FTS2000 - Federal Telecommunications System 2000 (GSA/FTS)<br />

FTS2001 - Federal Telecommunications System 2001 (GSA/FTS)<br />

FTSAT - Flyaway Tri-b<strong>and</strong> Satellite Terminal<br />

FTSC - Federal Telecommunication St<strong>and</strong>ards Committee<br />

FTSP - Federal Telecommunication St<strong>and</strong>ards Program<br />

FTTC - fiber to the curb<br />

FTTH - fiber to the home<br />

FTX - Field Training Exercise<br />

FUD - fire unit display<br />

FUI - file update information<br />

Full Duplex - Transmission occurs simultaneously in two directions.<br />

Functional Area Menu - A menu in the Operator Interface where<br />

most operator comm<strong>and</strong>s are initiated such as installing or<br />

modifying cards, ports, <strong>and</strong> links; querying the system <strong>and</strong> the<br />

Event log; monitoring alarms; reserving b<strong>and</strong>width; <strong>and</strong><br />

performing diagnostics.<br />

Fuse Disconnect Barrier - Used for some CEPT trunk applications<br />

in the United Kingdom when the equipment connected to the<br />

node is not certified to BS 6301.<br />

FUWG - Fleet Users Working Group<br />

FVS - foreign visits system<br />

FVT - full video translation<br />

fwd - forward<br />

FWPC - Federal Wireless Policy Committee<br />

FWRO - Federal Wireless Review Office<br />

FWTS - Federal Wireless Telecommunications Services (GSA/FTS)<br />

FWUF - Federal Wireless Users’ Forum<br />

FX - (Foreign Exchange) - Usually seen in the context of FXS<br />

(foreign exchange subscriber) <strong>and</strong> FXO (foreign exchange office)<br />

<strong>and</strong> available through the DS1 port Signalling Protocol parameter.<br />

FXO - Foreign Exchange Office<br />

FXO GDSTRT (Foreign Exchange Office Ground Start) - Differs from<br />

the FXO LPSTRT in the following manner: request for service (offhook)<br />

is accomplished by asserting a ground on the ring lead, <strong>and</strong><br />

then applying a loop closure. Disconnect (on-hook) is<br />

accomplished by an open loop.<br />

FXS - Foreign Exchange Service<br />

FXS - Foreign Exchange Station

---

FXS LPSTRT (Foreign Exchange Station Loop Start) - This signaling<br />

protocol is used (at the station end) on facilities interfacing a 2wire<br />

station to a foreign (distant) PBX or C.O. <strong>and</strong> combines<br />

transmission <strong>and</strong> signaling functions on a single pair of wires. On<strong>and</strong><br />

off-hook supervision is accomplished by an open loop <strong>and</strong><br />

loop closure respectively.<br />

FYDP - Future Years Defense (Program) Plan<br />

FYP - five year plan<br />

G<br />

G-6 - communications directorate of an Army staff<br />

G/LSRD - Ground/Loop Start Ringdown Trunk<br />

G/T - antenna gain-to-noise temperature<br />

G1 - Assistant Chief of Staff, G1 (Personnel)<br />

G2 - Assistant Chief of Staff, G2 (Intelligence)<br />

G3 - Assistant Chief of Staff, G3 (Operations <strong>and</strong> Plans)<br />

G6 - Assistant Chief of Staff, G6 (Communications-<br />

ElectronicsPrincipal Staff Officer)<br />

GAA - gateway access authorization<br />

GaAs - gallium arsenide<br />

GACC - Ground Attack Control Center<br />

GACIAC - Guidance <strong>and</strong> Control Information Analysis Center<br />

GAL - generic array logic<br />

GAL - Global Access List<br />

gal - gallon(s)<br />

GAM - GPS-aided munition<br />

GAMS - Guide to Available Mathematical Software (NIST)<br />

GAO - General Accounting Office<br />

GAPI - gateway application programming interface<br />

Gapped Clock - A clock stream at a nominal bit rate that may be<br />

missing clock pulses at arbitrary intervals for arbitrary lengths of<br />

time. A gapped clock is different from a synchronous clock.<br />

GAR - gateway access request<br />

GAT - government acceptance test<br />

GAT - guidance, apportionment <strong>and</strong> target (cell)<br />

Gate - A digital circuit with one output <strong>and</strong> one or more inputs. The<br />

output value is determined by specific criteria (for example, truth<br />

table).<br />

GATEC - government acquisition through electronic commerce<br />

Gateway Link - A logical connection between two gateway nodes<br />

consisting of one or more trunk modules.<br />

Gateway Link ID - Gateway links are identified through the Operator<br />

Interface by indicating the gateway nodes connected by a link.<br />

For example, the link between Gateway Node 5 in Domain 30 <strong>and</strong><br />

Gateway Node 7 in Domain 100 is referred to as D30N5D100N7<br />

(the local gateway node must be listed first).<br />

Gateway Node - A node that connects to a neighbor gateway node<br />

through a gateway link to provide connectivity between domains.<br />

GATM - global air traffic management environment<br />

Gb - gigabit<br />

GB - gigabyte<br />

Page 44 of 106<br />

GB - group buffer<br />

GBCS - ground based common sensor<br />

GBL - ground based laser<br />

GBN - global block numbering<br />

GBNP - Global Block Numbering Plan<br />

Gbps - gigabits per second<br />

GBps - gigabytes per second<br />

GBR - ground based radar<br />

GBS - ground based sensor<br />

GBS - Global Broadcast Service<br />

GBS - global broadcast system<br />

GCA - ground control approach<br />

GCC - global control center<br />

GCCS - Global Comm<strong>and</strong> <strong>and</strong> Control System<br />

GCCS-A - Global Comm<strong>and</strong> <strong>and</strong> Control System-Army<br />

GCCS-M - Global Comm<strong>and</strong> <strong>and</strong> Control System-Maritime<br />

GCE - ground combat element<br />

GCHQ - Government Communication Headquarters (UK)<br />

GCI - ground controlled intercept<br />

GCOS - general comprehensive operating system<br />

GCR - group coded recording<br />

GCRA - (Generic Cell Rate Algorithm) - Used to define conformance<br />

with respect to the traffic contract of the connection. For each cell<br />

arrival, the GCRA determines whether the cell conforms to the<br />

traffic contract. The UPC function may implement the GCRA, or<br />

one or more equivalent algorithms to enforce conformance. The<br />

GCRA is defined with two parameters: the Increment (I) <strong>and</strong> the<br />

Limit (L).<br />

GCRI - general collective routing indicator<br />

GCS - Ground Control Station<br />

GCSS-A - Global Comm<strong>and</strong> <strong>and</strong> Control System-Army<br />

GCSS - global combat support system<br />

GCSS-AF - Global Combat Support System Air Force component<br />

(Was BLSM-II)<br />

GCU - guidance <strong>and</strong> control unit<br />

GD - General Datacomm<br />

GD - graphic display<br />

GDA - gimballed dish antenna<br />

GDA - global data area<br />

GDB - global database<br />

GDB - MGR - global database manager<br />

GDDM - graphical data display manager<br />

GDF - group distribution frame<br />

GDI - graphics device interface<br />

GDI - Global Domain Identifier<br />

GDI - Global Domain Identifier<br />

GDIP - General Defense Intelligence Program<br />

GDMO - guidelines for the definition of managed objects<br />

GDMS - global database management system<br />

GDS - global directory service

---

GDSS - global decision support system<br />

GDU - graphic display unit<br />

GE - Germany<br />

GEDAE - graphical entry distributed application environment<br />

GEM - Grey Extension Module<br />

GEM - General Dynamics Encryption Manager<br />

GEMINI - Global Emergency Management Information Network<br />

Initiative (G-7)<br />

GEMS - GPS engineering management system<br />

GEMSS - GITS Electronic Mail Steering Subcommittee<br />

GEN - generation<br />

gen - generator(s)<br />

GENE - GPS enhanced navigation system<br />

GENSER - general service<br />

GEO - geostationary orbit<br />

GEOREF - geographical reference<br />

GES - government electronic systems<br />

GET - get execute trigger<br />

GETS - Government Emergency Telecommunications Service (NCS)<br />

GFCI - ground fault circuit interrupt<br />

GFE - government furnished equipment<br />

GFI - government furnished information<br />

GFLOPS - billion floating-point operations per second<br />

GFSK - Gaussian frequency shift keying<br />

GGI - global geospatial information<br />

GGI - global grid initiative<br />

GGI&S - global geospatial Information <strong>and</strong> Services<br />

GHz - gigaHertz<br />

GIDEP - government-industry data exchange program<br />

GIE - global information environment (Army)<br />

GIF - graphics interchange format<br />

GIG - Global Information Grid<br />

GIGO - garbage-in/garbage-out<br />

GII - global (Government) information infrastructure<br />

GILS - government information locator system (Service)<br />

GIPS - billion instructions per second<br />

GIPSY - graphic information presentation system<br />

GIS - geographic information systems<br />

GIS - Global Information Society<br />

GISA - German Information Security Agency<br />

GITEC - Government Information Technology Executive Council<br />

GITS - Government Information Technology Services<br />

GIV - geological information visualization<br />

GIX - Global Information Exchange<br />

GK - gate keeper<br />

GKS - graphical kernel system<br />

Glare - On a POTS line an incoming call is signaled by periodically<br />

applying an AC ring voltage to the line. Since there is a semi<br />

Page 45 of 106<br />

r<strong>and</strong>om period before the ring, <strong>and</strong> pauses between rings, it is<br />

possible to seize a line which is "about to ring" (<strong>and</strong> answer a call)<br />

when attempting to place an outgoing call. When this scenario<br />

happens it is called glare. Glare is much less likely if Ground Start<br />

trunks are used. See Ground Start Trunk.<br />

Glass - TTY - A dumb terminal used to accept keyed data <strong>and</strong><br />

transmit that data to a computer. This terminal has no other<br />

processing capabilities. The term glass refers to the TTY with a<br />

CRT screen.<br />

GLIS - global l<strong>and</strong> information system<br />

GLLD - ground laser locator/designator<br />

GLOBIXS - global information exchange systems (Navy)<br />

GLPAL - global preaffiliation list<br />

GLU - Group Logic Unit<br />

GM - group modem<br />

GMAP - general macro assembler program<br />

GMD - global missile defense<br />

GMDSS - global maritime distress <strong>and</strong> safety system<br />

GMF - ground mobile forces<br />

GMF - ground mobile forces<br />

GMFSC - ground mobile forces satellite communications<br />

GMITS - Guidelines for the Management of IT Security<br />

GMPCS - global mobile personal communications systems<br />

GMR - giant magnetoresistive<br />

GMT - Greenwich Mean Time<br />

GND - ground<br />

GNDCP - ground comm<strong>and</strong> post<br />

GNDFE - ground force element<br />

GNIE - Global Networked Information Enterprise<br />

GNMP - government network management profile<br />

GNOSC - Global Network Operations <strong>and</strong> Security Center<br />

GNSS - global navigational satellite system<br />

GOCA - graphics object content architecture<br />

GOES - Geostationary Operational Environmental Satellites<br />

GOLDS - general online display system<br />

GOS - grade of service<br />

GOSC - Global Operations <strong>and</strong> Security Center (DISA)<br />

GOSIP - government open system interconnection profile (protocol)<br />

GOTS - government off-the-shelf<br />

GP - group<br />

GPALS - global positioning <strong>and</strong> location system<br />

GPALS - global protection against limited strikes<br />

GPC - general purpose computer<br />

GPCSC - general purpose computer support center<br />

GPEE - general purpose encryption equipment<br />

GPI - graphics programming interface<br />

GPIB - general purpose interface bus<br />

GPMDM - Group Modem<br />

GPRS - general packet radio service<br />

GPS - Global Positioning System

---

GPSR - Global Positioning System receiver<br />

GPSS - general purpose simulation system<br />

GRACE - generic reusable Ada components for engineering<br />

Grade Of Service - This is simply the ratio of calls blocked to total<br />

calls in a decimal form. So a grade of service of P.08 would<br />

represent 8% blocking. Telephone tariffs regulate the acceptable<br />

average grade of service which must be provided on public<br />

networks.<br />

GRASP - graphical system for presentation<br />

GRCS - guardrail common sensor<br />

GRE - graphics engine<br />

GRNN - general regression neural network<br />

Ground Start - A method of signaling between two machines, where<br />

one machine grounds one side of the line <strong>and</strong> the other machine<br />

detects the presence of the ground.<br />

Ground Start Trunk - A type of telephone trunk where the request<br />

to make an outgoing call (i.e. request for dial tone) is made by<br />

briefly grounding the Tip conductor. Many PBX systems use<br />

ground start trunks as they are less prone to glare than Loop start<br />

trunks. See Loop Start Trunk. See also Glare<br />

GRT - ground receive terminal<br />

GRWSIM - ground warfare simulation<br />

GS - general support<br />

GSA - General Services Administration<br />

GSA - global security architecture<br />

GSB - gateway signaling buffer<br />

GSE - ground support equipment<br />

GSII - Government Services Information Infrastructure<br />

GSM - global system mobile (Europe)<br />

GSM - ground station module<br />

GSM - groupe speciale mobile<br />

GSORTS - global status of resources <strong>and</strong> training system<br />

GSPM - Global St<strong>and</strong>ard Profile Matrix<br />

GSR - ground surveillance radar<br />

GSRD - Ground Start Ringdown<br />

GSS - general security support (DOD)<br />

GSSAP - generic security service applications programming<br />

GSSP - Generally Accepted System Security Principles<br />

GSTS - Ground-based surveillance <strong>and</strong> tracking system<br />

GSVS - global secure voice system<br />

GT - Guard Time<br />

GTA - graphic training aid<br />

GTACS - ground theater air control system<br />

GTE - General Telephone <strong>and</strong> Electric<br />

GTEAM - Global Team Labeling<br />

GTFM - generalized tamed frequency modulation<br />

GTIS - Government Telecommunications <strong>and</strong> Information Services<br />

(Canada)<br />

GTL - gunning transceiver logic<br />

GTLD - Generic Top Level Domains<br />

GTN - Global Transportation Network (DOD)<br />

GTS - government telecommunications system<br />

GUI - graphical user interface<br />

GVM - global virtual manufacturing<br />

GW - gateway<br />

GWC - global weather central<br />

GWIP - global weather intercept program<br />

GWS - groupware server<br />

GWS - GroupWare Server<br />

GXX - format for a user's telephone number, 4/3 numbering plan<br />

GXXX - format for a user's telephone number, 3/4 numbering plan<br />

H<br />

H-HMMWV - high variant HMMWV<br />

H - height<br />

H.gcp - gateway control protocol<br />

HACMP - high availability clustered multiprocessing<br />

HAEMP - High Altitude Electromagnetic Pulse<br />

HAG - high assurance guard<br />

HAIDE - hostile aircraft identification equipment<br />

HAL - hard array logic<br />

HAL - hardware adaptation (abstraction) layer<br />

HAL - house programmed array logic<br />

Half-Duplex - Transmission occurs in two directions, but not<br />

simultaneously.<br />

H<strong>and</strong>shake - Exchange of predetermined signals occurring when<br />

the connection between two data sets is first established.<br />

HARM - high speed anti-radiation missile<br />

HBA - host bus adapter<br />

HCI - human/computer interface<br />

HCJ - heliborne common jammer<br />

HCLOS - high capacity line of sight<br />

HCP - hardcopy printer<br />

HCTR - High-Capacity Trunk Radio<br />

HCU - high capacity computer unit<br />

HCU-2 - high capacity unit-2<br />

HD - hard disk<br />

HD - harmonic distortion<br />

HDA - head disk assembly<br />

HDA - host data adapter<br />

HDB3 (High Density Bipolar, 3 Zero) - A CCITT recommended<br />

BNZS coding format. This commonly used version of high-density<br />

bipolar (HDB) line coding replaces strings of four zeroes with<br />

sequences containing a bipolar violation in the fourth-bit position.<br />

Since this coding format precludes strings of zeroes greater than<br />

three, it is referred to as HDB3. The encoding algorithm is<br />

basically the same as B3ZS. HDB3 line coding is used in CEPT<br />

Level-1 digital transmission (2.048 Mbps); thus HDB3 is used with<br />

the CEPT Trunk module. Also see zero suppression.<br />

HDB3 - High Density Bipolar 3. An E1 line coding method. This is the<br />

more modern line coding method of the two commonly available.<br />

See Line Coding, T1. See also AMI <strong>and</strong> B8ZS<br />

Page 46 of 106

---

HDCD - high definition compatible digital<br />

HDD - hard disk drive<br />

HDDI - host document data interchange<br />

HDF - hierarchical data format<br />

HDGH - high definition graphic display<br />

HDI - head to disk interference<br />

HDI - high density interconnect<br />

HDL - hardware description language<br />

HDLC (High-Level Data Link Control) - A link level, bit-oriented fullduplex<br />

protocol defined by ISO (International St<strong>and</strong>ards<br />

Organization). A somewhat universal protocol, it is used in the<br />

SCLP channel, <strong>and</strong> in the ESF data link.<br />

HDM - hardware device module<br />

HDM - hierarchical development methodology<br />

HDSL - high data-rate digital subscriber line (loop) (link)<br />

HDT - high density tape<br />

HDTV - high definition television<br />

HDU - hard disk unit<br />

HDU - helmet display unit<br />

HDUX - half duplex transmission<br />

HDVC - (High Density Voice Compression) Module - This module<br />

can receive input from voice modules in 64 kbps PCM (Pulse<br />

Code Modulation) format. The HDVC uses Vector Adaptive<br />

Predictive Coding (VAPC) at either 16 kbps for a compression<br />

ratio of 4:1 or alternatively at 8 kbps for a compression ratio of<br />

8:1.<br />

HDVD - high definition volumetric display<br />

HDX - half duplex<br />

Header - Control information <strong>and</strong> codes that are appended to the<br />

front of a block of user data for control, synchronization, routing,<br />

<strong>and</strong> sequencing of a transmitted data frame or packet.<br />

HEC - header error control<br />

HEL - high energy laser<br />

HELLO - routing protocol<br />

HEMP - high altitude electromagnetic pulse<br />

HEO - highly elliptical orbit<br />

HERF - hazard from electromagnetic radiation to fuel<br />

HERO - hazard from electromagnetic radiation to ordnance<br />

Hertz - (Hz) - A measure of frequency equal to one cycle per<br />

second.<br />

HF - high frequency<br />

HF/DF - high frequency direction finding<br />

HF/SSB - high frequency/single-sideb<strong>and</strong><br />

HFAARS - high frequency adaptive antenna receiving system<br />

(Canada)<br />

HFB - high-frequency channel B<br />

HFC - hybrid fiber-coaxial<br />

HFCP - high frequency communications planner<br />

HFEN - high frequency emergency network<br />

HFM - high frequency prediction module<br />

HFPLAN - high frequency planner<br />

HFR - high frequency radio<br />

Page 47 of 106<br />

HHC - h<strong>and</strong>held computer<br />

HHC - Headquarters <strong>and</strong> Headquarters Company<br />

HHMMWV - heavy high mobility multipurpose wheeled vehicle<br />

HHMMWV - heavy high mobility multipurpose wheeled vehicle<br />

HHVIT - h<strong>and</strong>held video imagery terminal<br />

HI - high<br />

HIC - human interaction capability<br />

HICC - hostile intelligence collection capabilities<br />

HIDAD - high density array development<br />

HIDS - headquarters information distribution system (Canadian<br />

army)<br />

HIMAD - high to medium altitude air defense<br />

HIMS - human information management system<br />

HIPERLAN - high performance local area network (European)<br />

HIPO - hierarchy of input, processing, <strong>and</strong> output<br />

HIPPI - high performance parallel interface<br />

HIRF - high intensity radiated fields<br />

HIS - Hypermedia Indexing Schema<br />

HISS - Horizon Infrared Surveillance Sensor<br />

HIT - high interest telecommunication<br />

HITS - Hawaiian information transfer system<br />

HJ - crypto key change<br />

HLA - high level architecture<br />

HLI - high-speed LAN interface<br />

HLL - high level language<br />

HLLAPI - high level language application programming interface<br />

HLOS - horizontal line-of-sight<br />

HLQ - high level qualifier<br />

HMA - hub management architecture<br />

HMD - head (helmet) mounted display<br />

HMI - host message interface<br />

HMMP - HyperMedia Management Protocol<br />

HMMS - HyperMedia Management Schema<br />

HMMWV - high mobility multipurpose wheeled vehicle<br />

HMOM - HyperMedia Object Manager<br />

HMOS - high density metal oxide semiconductor<br />

HMX - home exchange<br />

HN - Home Net<br />

HNSC - House National Security Committee<br />

HOC - cable connector<br />

HOCNET - HUMINT Operational Communications Network<br />

HOIS - hostile intelligence service<br />

HOL - high order language<br />

Hops - The number of nodes through which a call passes before<br />

reaching its destination. (Includes only the pass-through <strong>and</strong><br />

destination nodes, not the origination node).<br />

HOPSEC - hopping security<br />

HOST - Hybrid Open Systems Technology

---

HOT - health-oriented telecommunications<br />

HP - Hewlett Packard<br />

HPA - high power amplifier<br />

HPC - high performance computing<br />

HPCC - high performance computing (computer) <strong>and</strong><br />

communications<br />

HPFS - high-performance file system<br />

HPM - high powered microwave<br />

HPOV - Hewlett Packard OpenView<br />

HPPI - high performance parallel interface<br />

HPPP - high performance parallel processor<br />

HPSS - high performance storage system<br />

HPT - high priority target<br />

HQ - headquarters<br />

HRCD - h<strong>and</strong>held remote controlled device<br />

HRG - high resolution graphics<br />

HRMS - human resource management system<br />

HRR - high resolution radar<br />

HRV - Home Rekey Variable<br />

HS - high-speed<br />

HSBIC - high-speed balanced interface card<br />

HSC - high speed channel<br />

HSCDM - High-Speed Cable Driver Modem<br />

HSD (High-Speed Data) Module - This module provides two<br />

independent data ports with V.35 or RS-449/422 interfaces at<br />

rates from 9.6 kbps to 1.344 Mbps <strong>and</strong> RS-232 DCE/DTE<br />

interfaces at rates from 9.6 kbps to 19.2 kbps.<br />

HSE - high speed encryption<br />

HSFEC - high speed forward error correction<br />

HSI - hue saturation intensity<br />

HSI - human systems integration<br />

HSI - hyper-spectral imagery<br />

HSIF - hardware/software integration facility<br />

HSLAN - high-speed local area network<br />

HSM - hierarchical storage management<br />

HSM - host security module<br />

HSMUX - high speed multiplexer<br />

HSMUX2 - high speed multiplexer-2<br />

HSPR - high-speed pulse-form restorer<br />

HSS - high-speed shelf<br />

HSS-2 (High-Speed Shelf) - A mechanical assembly (chassis) that<br />

contains the SX, T3, <strong>and</strong> PPM modules in a Promina 800.<br />

HSSDB - high-speed serial data buffer<br />

HSSI - high speed serial interface<br />

HSU - High Speed User<br />

HSV - hue saturation value<br />

HT - heavy terminal<br />

HT/MT - heavy terminal/medium terminal<br />

HTCIA - High Technology Crime Investigative Association<br />

Page 48 of 106<br />

HTI - horizontal technology integration<br />

HTML - HyperText Markup Language<br />

HTTP - HyperText Transport Protocol<br />

HTU - h<strong>and</strong>held terminal unit<br />

HUD - heads-up display<br />

HUDCLIPS - HUD client information <strong>and</strong> policy system<br />

HUMINT - human intelligence<br />

Hunt - Group - A group of telephone channels configured so that if<br />

the first is busy (engaged) the call goes to the next channel, if that<br />

channel is busy it goes to the next channel, etc. Hunt groups may<br />

hunt from the highest to the lowest, the lowest to the highest, or<br />

on some other arbitrary pattern. But the order of hunting will<br />

usually be fixed, beginning with one channel <strong>and</strong> working through<br />

("hunting") until an unused channel is found. The term may have<br />

originated back in the old manual switchboard days when the<br />

operator literally hunted for an unused jack to plug a cord into.<br />

This arrangement is very common in business scenarios where a<br />

single incoming number (the Listed Directory Number) is given to<br />

the public, but multiple incoming channels are supported. See<br />

LDN<br />

HUS - Hardened Unique Storage<br />

HVA - high voltage assembly<br />

HVPS - high-voltage power supply<br />

HVT - high value target<br />

HWCI - hardware configuration item<br />

HWIL - hardware-in-the-loop<br />

HWS - host workstation<br />

HXTS - external traffic service<br />

Hybrid - 1. A device which converts from a two-wire signal such as<br />

POTS lines to a four-wire system (separate send <strong>and</strong> receive<br />

paths) such as used in the pro-audio world. While this task is<br />

theoretically quite simple, the fact the impedance of most phone<br />

lines varies widely across frequency complicates matters. 2.<br />

Mixed data <strong>and</strong> voice applications.<br />

Hybrid Network - A network that can h<strong>and</strong>le protocols in both public<br />

<strong>and</strong> private network communications. Most private networks today<br />

are hybrid networks.<br />

HYDRA - hierarchical yet dynamically reprogrammable architecture<br />

HYTIME - hypermedia/time-based structuring language<br />

Hz - Hertz<br />

HZG - Hertz generator<br />

I<br />

I-CASE - integrated computer-aided software (systems) engineering<br />

I-MAC - isynchronous media access controller<br />

I&A - identification <strong>and</strong> authentication<br />

I&RTS - Integration <strong>and</strong> Runtime Specifications<br />

I/O - input/output<br />

I2 - image intensifying<br />

I3MP - Installation Information Infrastructure Modernization Program<br />

(Army)<br />

I3P - Institute for Information Infrastructure Protection<br />

I4 - International Information Integrity Institute

---

I422 - Trunk Module - A low b<strong>and</strong>width trunk module to connect sites<br />

in different countries.<br />

IA - Imagery Analyst<br />

IA - Information Assurance (DOD)<br />

IA - internet access<br />

IA - issuing authority<br />

IA/M - information assurance monitoring<br />

IAB - Internet Architecture (Activities) Board<br />

IAC - Image Analysis Center<br />

IAC - Information Analysis Center<br />

IAC - interapplication communication<br />

IAC - International Access Code<br />

IAC - International Area Code<br />

IAD - Information Assurance Document<br />

IAD - integrated antenna detectors<br />

IAEA - International Atomic Energy Agency<br />

IAFIS - integrated automated fingerprint identification system (FBI)<br />

IAG - Information Assurance Group<br />

IAL - incoming async link<br />

IALEIA - International Association of Law Enforcement Intelligence<br />

Analysts<br />

IAMC - information assurance management cell<br />

IANA - Internet Assigned Numbers Authority<br />

IAP - Information Architecture Plan<br />

IAP - Information Assurance Posture<br />

IAP - Internet Access Provider<br />

IAP - interactive asset placement<br />

IAR - Interoperability Assessment Report<br />

IARRCIS - Interim Allied Comm<strong>and</strong> Europe Information System<br />

IAS - intelligence analysis system<br />

IAS - intelligence analysis system<br />

IAT - import address table<br />

IATAC - Information Assurance Technology Analysis Center<br />

IATACS - Improved Army Tactical Communications System<br />

IATF - Information Assurance Technology (Technical) Framework<br />

IATO - interim approval to operate<br />

IAUP - internet user account provider<br />

IAVA - Information Assurance Vulnerability Alert<br />

IAVB - Information Assurance Vulnerability Bulletin<br />

IAW - in accordance with<br />

IAWGDEC - Interagency Working Group on Drug Enforcement<br />

Communications<br />

IB/OOB - in-b<strong>and</strong>/out-of-b<strong>and</strong><br />

IBAC - identity based access control<br />

IBAG - INFOSEC Business Advisory Group<br />

IBC - instrument bus computer<br />

IBC - in-b<strong>and</strong> control<br />

IBCS - integrated battlefield control system<br />

Page 49 of 106<br />

IBCT - Initial/Interim Brigade Combat Team<br />

IBIS - interactive battlespace intelligence system<br />

IBIS - interagency border inspection system<br />

IBS - integrated booking system<br />

IBS - Integrated Broadcast Service<br />

IBW - information-based warfare<br />

IC - information center (DOD)<br />

IC - integrated circuit<br />

IC - integration contractor<br />

IC - intelligence community<br />

IC - interrupt controller<br />

IC - intercept<br />

IC - interface control<br />

IC/CIO - Intelligence Community/Chief Information Officer<br />

IC4I - Integration for Comm<strong>and</strong>, Control, Communications,<br />

Computers <strong>and</strong> Intelligence<br />

ICA - intra-application communications area<br />

ICADS - integrated correlation <strong>and</strong> display system<br />

ICAM - integrated computer-aided manufacturing<br />

ICANN - Internet Corporation for Assigned Names <strong>and</strong> Numbers<br />

ICAO - International Civil Aviation Organization<br />

ICAP - Integrated Communications Access Package<br />

ICAP - Intelligence Community Assignment Program<br />

ICAP - Integrated Communications Access Package<br />

ICARIS - intelligence communications <strong>and</strong> requirements information<br />

system<br />

ICASC - Improved Direct Air Support Central<br />

ICATS - interactive computer aided training system<br />

ICC - Information <strong>and</strong> Coordination Central<br />

ICC - intelligence coordination center (Coast Guard)<br />

ICCCM - inter-client communications conventions manual<br />

ICCIP - Inter-Center Council on Information Processing<br />

ICCITS - Inter-Center Council on Information Technology Security<br />

ICCN - Inter-Center Council on Networking<br />

ICCP - Institute for the Certification of Computer Professionals<br />

ICD - imitative communications deception<br />

ICD - Interface Control Document<br />

ICDL - Integrated Circuit Design Language<br />

ICE - information <strong>and</strong> content exchange<br />

ICE - integrated collaborative engineering<br />

ICE - International Cryptography Experiment<br />

ICE - intrusion countermeasures equipment<br />

ICEMAN - Integrated Computing Environment-Mainframe <strong>and</strong><br />

Networking (FAA)<br />

ICF - interconnect facility<br />

ICI - image component information<br />

ICI - incoming call identification<br />

ICIT - Industry Coalition on Information Technology

---

ICL - interface clear<br />

ICLID - incomming-call line identification<br />

ICM - Intelligence Collection Management<br />

ICM - Intelligence Correlation Module<br />

ICMP - Internet Control Message Protocol<br />

ICN - idle channel noise<br />

ICNIA - integrated communication, navigation <strong>and</strong> identification<br />

avionics<br />

ICO - Intelligence Community Officers<br />

ICO - intermediate circular orbit<br />

ICODES - integrated computerized deployment system<br />

ICOE - Intelligence Center of Excellence<br />

ICOM - integrated communication security<br />

ICON - Imagery Communications <strong>and</strong> Operations Node<br />

ICP - integrated channel processor<br />

ICP - interface change proposal<br />

ICP - internal communications processor<br />

ICP - Intertheater COMSEC package<br />

ICP - intertheater communications security package<br />

ICQC - Intelligence Community Quality Council<br />

ICR - in-circuit reconfigurable<br />

ICR - Intelligence Collection Requirements<br />

ICR - intelligent character recognition<br />

ICRI - interswitch collective RI<br />

ICS - intelligence community staff (now intelligence management<br />

staff)<br />

ICS - interagency communications system<br />

ICS - intuitive comm<strong>and</strong> structure<br />

ICSC - Interior Communications Switching Center<br />

ICSI - Interdepartmental Committee on Security <strong>and</strong> Intelligence<br />

(Canada)<br />

ICU - interface control unit<br />

ICW - interactive courseware<br />

ICW - interrupted continuous wave<br />

ICWG - interface control working group<br />

ID - identification<br />

ID3 - international direct distance dialing (GSA/FTS)<br />

IDA - integrated digital access<br />

IDA - intelligent disk (drive) array<br />

IDAPI - integrated database application programming interface<br />

IDARS - integrated document archive <strong>and</strong> retrieval system<br />

IDB - integrated database<br />

IDCU - integrated data communications utility<br />

IDD - interface design document<br />

IDDD - international direct distance dialing<br />

IDDF - intermediate data distribution facility<br />

IDE - integrated data environment<br />

IDE - integrated device (drive) electronics<br />

Page 50 of 106<br />

IDE - interactive design <strong>and</strong> engineering<br />

IDE - interface design enhancement<br />

IDEA - International Data Encryption Algorithm<br />

IDEAS - intelligence data element <strong>and</strong> authorization system<br />

IDEAS - interior department electronic acquisition system<br />

IDECM - integrated defensive electronic countermeasure<br />

IDEF - Integrated Definition Language<br />

IDEX - image data exploitation system<br />

IDF - intermediate distribution frame<br />

IDH - Interface Design H<strong>and</strong>book<br />

IDHS - intelligence data h<strong>and</strong>ling system<br />

IDIP - intrusion detection interactive protocol<br />

IDIQ - indefinite-delivery, indefinite-quantity<br />

IDIV - integer divide<br />

IDL - interactive distance learning<br />

IDL - Interface Definition Language<br />

IDL - interoperable data link<br />

IDL - interim data link<br />

IDM - improved data modem<br />

IDM - information dissemination management<br />

IDM - intelligent database machine<br />

IDM-T - information dissemination management-tactical<br />

IDM - information dissemination management<br />

IDMP - intelligence digital message processor<br />

IDMS - integrated data base management system<br />

IDMT - Intelligence Digital Message Terminal<br />

IDN - integrated digital network<br />

IDNX - (Integrated Digital Network Exchange) - Refers to<br />

components of the N.E.T. IDNX network: an IDNX/90, IDNX/70,<br />

IDNX/20, <strong>and</strong> IDNX/Micro 20.<br />

IDO - Integrated Deterrent Option<br />

IDOCS - intrusion detection optical communication system<br />

IDOM - integrated document <strong>and</strong> output management<br />

IDP - integrated data processing<br />

IDP - intelligence data processor<br />

IDRC - improved data recording capability<br />

IDRP - Interdomain Routing Protocol<br />

IDS - intrusion detection system<br />

IDT - integrated device technology<br />

IDT - interrupt descriptor table<br />

IDTS - integrated data transport (telecommunications) system (Army)<br />

IDTS - Integrated Digital Telecommunications Switch (USAF)<br />

IDTV - improved definition television<br />

IDX - index<br />

IE - information engineering<br />

IEB - Intelink Engineering Board<br />

IEC - interexchange carriers

---

IEC - InterExchange Carrier. "Long Distance" carrier. H<strong>and</strong>les<br />

Interlata <strong>and</strong> interstate calls. Also referred to as IXC.<br />

IEEE - Institute of Electrical <strong>and</strong> Electronics Engineers<br />

IEF - Information Engineering Facility<br />

IEMATS - Improved Emergency Actions Automatic Transmission<br />

System<br />

IEMS - integrated emergency management system<br />

IEMSI - interactive electronic mail st<strong>and</strong>ard identification<br />

IEN - Internet Experiment Notes<br />

IEP - Intergovernmental Enterprise Panel<br />

IER - information exchange requirement<br />

IES - imagery exploitation system<br />

IESG - Internet Engineering Steering Group<br />

IESS - imagery exploitation support system<br />

IETF - Internet Engineering Task Force<br />

IETM - interactive electronic technical manual<br />

IEW - intelligence <strong>and</strong> electronic warfare<br />

IEWCS - intelligence <strong>and</strong> electronic warfare common sensor<br />

IF - intermediate frequency<br />

IFA - interagency funding agreement<br />

IFAS - industrial fund accounting system<br />

IFD - image file directory<br />

IFF - identification friend or foe<br />

IFF/NCTR - identification friend or foe/non-cooperative target<br />

IFFN - identification friend or foe/neutral<br />

IFG - incoming fax gateway<br />

IFMA - Information Functional Mission Area<br />

IFOV - instantaneous field of view<br />

IFR - Identify For Rekeying<br />

IFS - ionospheric forward scatter<br />

IFS - installable file system<br />

IFSM - information systems management<br />

IG - interagency group<br />

IGA - integrated graphics array<br />

IGC - integrated graphics controller<br />

IGES - initial graphics exchange specification (st<strong>and</strong>ard)<br />

IGMP - Internet Group Management Protocol<br />

IGOSS - industry-government open system specification<br />

IGP - intelligent gateway processor<br />

IGP - interior gateway protocol<br />

IGRP - interior gateway routing protocol<br />

IGS - Internet go server<br />

IGSM - interim ground station module<br />

IGW - integral gateway<br />

IGX - integrated gateway exchange<br />

IGX - ISDN gateway exchange<br />

IGX.C - IGX Comm<strong>and</strong> Control Exchange<br />

IHC - Information H<strong>and</strong>ling Committee<br />

Page 51 of 106<br />

IHF - improved high frequency<br />

IHFR - improved high frequency radio<br />

II - imagery interpretation<br />

IIA - Information Industry Association<br />

III - Interstate Identification Index (FBI)<br />

IIMS - integrated image management system<br />

IIOP - intra/Internet object protocol<br />

IIR - infinite impulse response<br />

IIR - imaging infrared<br />

IIR - immediate impulse response<br />

IIS - industry information security<br />

IITA - information infrastructure technology applications<br />

IITF - Information Infrastructure Task Force<br />

IIW - information in war (USAF)<br />

IJC3S - integrated joint comm<strong>and</strong> <strong>and</strong> control communications<br />

system<br />

IKE - Internet key exchange<br />

ILC - interlink module<br />

ILEC - Incumbent Local Exchange Carrier. A local Exchange Carrier<br />

which entered the marketplace before the enactment of the 1996<br />

Telecom act;. i.e. a telephone company which is neither an Indie<br />

nor an RBOC. See LEC <strong>and</strong> CLEC.<br />

ILECS - Incumbent Local Exchange Carriers<br />

ILI - intelligent line interface<br />

ILMI - (Integrated Local Management Interface) - An ATM Forumdefined<br />

interim specification for network management functions<br />

between an end user <strong>and</strong> a public or private network <strong>and</strong> between<br />

a public network <strong>and</strong> a private network. This is based on a limited<br />

subset of SNMP capabilities.<br />

ILSC - Industrial Logistics Systems Center (Army)<br />

IM - information management<br />

IM - intensity modulation<br />

IM - Interface Manager<br />

IMA - information (management) mission area<br />

IMA - Interactive Multimedia Association<br />

IMA - Inverse Multiplexing over ATM<br />

IMA - Information Mission Area<br />

IMACS - interservice materiel <strong>and</strong> accounting control system<br />

IMAP - Internet Message Access Protocol<br />

IMCT - intermodule compatibility testing<br />

IMDS - integrated maintenance data system<br />

IME - input method editor<br />

IMETS - integrated meteorological system<br />

IMEWS - integrated missile warning system<br />

IMG - imagery<br />

IMINT - imagery intelligence<br />

Immediate - IADS integrated audio distribution system<br />

IMP - information/interface message processor<br />

IMP - Information Management Plan<br />

IMP - intelligence message processor

---

IMP - interface message processor<br />

IMPE - information management processing equipment<br />

Impedance - The resistance to the flow of alternating current in a<br />

circuit.<br />

IMPEG - Information Management Program Evaluation Group<br />

IMPWG - Information Policy Working Group<br />

IMS - Integrated Management System<br />

IMSI - intelligent multi-sensor integration<br />

IMTA - intermediate transfer agent<br />

IMTV - interactive multimedia television<br />

IMU - inertial measurement unit<br />

IMU - intermatrix unit<br />

IMUX - inverse multiplexer<br />

IN - intelligent network<br />

IN - impulse noise<br />

IN-ADDR - inverse address<br />

In B<strong>and</strong> Signaling - A signaling system where network information<br />

such as address <strong>and</strong> routing information are h<strong>and</strong>led over the<br />

communications (voice) path itself. Usually the information is<br />

represented in the form of tones, however DC loop current<br />

signaling also qualifies as In B<strong>and</strong> Signaling. See also CCIS.<br />

IN-ADDR - inverse address<br />

In-b<strong>and</strong> - Using or involving the information digit time slots of a DS1<br />

frame (that is, bit assignments of a frame exclusive of the framing<br />

or 193rd bit).<br />

INC - Internet controller<br />

Incumbent - Local Exchange Carrier - See ILEC. See also CLEC &<br />

LEC<br />

IND - independent<br />

INDD - intra-nodal data distribution<br />

Independent - Any of the phone companies in existence at the time<br />

of divestiture that were not affiliated with the Bell System. See<br />

RBOC, LEC, <strong>and</strong> CLEC<br />

INE - in-line network encryptors<br />

info - information<br />

INFOCON - information operations condition<br />

INFOSEC - information security<br />

INID - Intercept Network In Dialing<br />

INIT - initialization<br />

INM - integrated network management<br />

INMARSAT - International Maritime Satellite<br />

INMS - Integrated Network Management System<br />

INPHO - Information Network for Public Health Officials<br />

INS - inertial navigation system<br />

INS - integrated network server<br />

INSA - integrated network services architecture<br />

INSC - interoperable networks for secure communications<br />

INSCOM - Intelligence <strong>and</strong> Security Comm<strong>and</strong><br />

INSM - integrated network <strong>and</strong> systems management<br />

INT - integer (internal) (interrupt)<br />

INT - internal<br />

INT - (International) 422 Trunk Module - This module is used as a<br />

low-b<strong>and</strong>width trunk (for example, 128 kbps) to connect sites in<br />

different countries. The module is designed so that it will operate<br />

in conjunction with an RS-422 trunk module as long as both trunk<br />

modules are properly configured <strong>and</strong> the data rate is one that<br />

both cards support.<br />

INTA - interrupt acknowledge<br />

INTEL - intelligence<br />

Intelligent Switching - A feature of multiplexers that enables every<br />

call to be routed through the shortest distance, <strong>and</strong> one that takes<br />

into account traffic at any given time to avoid congestion or<br />

network failures.<br />

Intelligent Terminal - A data terminal that contains a processing<br />

element. It can perform local data processing <strong>and</strong> storage<br />

activities.<br />

INTELSAT - International Telecommunications Satellite<br />

(Organization)<br />

Interconnect Company - A vendor of telecommunications Customer<br />

Premise Equipment (CPE) other than a Bell Operating Company<br />

(RBOC) or AT&T. This term was originated by AT&T <strong>and</strong> was<br />

meant to be derisive towards the fledgling industry when the<br />

courts said it was OK for end users to buy equipment from<br />

someone other than the Bell System. This industry flourished, in<br />

spite of AT&T°Øs disdain, <strong>and</strong> ironically the RBOCs were not<br />

allowed to sell CPE under the terms of the break up of AT&T.<br />

With the current state of deregulation, the RBOCs are slowly reentering<br />

this business.<br />

Interdomain Call - A call that originates in one domain, possibly<br />

passes through a transit domain, <strong>and</strong> terminates in another<br />

domain.<br />

Interdomain Call ID - See virtual call ID.<br />

Interexchange Carrier - See IEC.<br />

Interface - A point between two devices where electrical signals,<br />

connectors, timing, <strong>and</strong> h<strong>and</strong>shaking meet.<br />

Interface Signal - A method of physical signaling defined by various<br />

specifications such as V.24, V.35, V.36, RS-232, <strong>and</strong> RS-449.<br />

Intermediate Rate - A subrate data rate formed by combining two or<br />

more adjacent 9.6 DS0B subrate channels to form a 19.-, 28.8-,<br />

or 38.4 kbps circuit.<br />

Internal Timing - When the node is the clock source.<br />

InterNIC - Internet Network Information Center<br />

Interrupt - A means of gaining access in a CPU or network to get a<br />

desired service.<br />

Intradomain Call - A call that originates <strong>and</strong> terminates within the<br />

same domain.<br />

Inverse Multiplexing - A method of combining <strong>and</strong> later separating<br />

2 data streams that does not involve the telephone network.<br />

Inverse multiplexing is the most common way of achieving this<br />

function in Codecs operating at 128kbps or less over ISDN.<br />

INX - information exchange<br />

IO - Information Operations (DOD)<br />

IO - input only<br />

IO - information operations<br />

IOC - interoffice channel<br />

IOC - input/output controller<br />

IOC Capability Packages - ISDN Ordering Code system. This<br />

system was devised by the National ISDN User’s Forum <strong>and</strong><br />

Bellcore to simplify ordering new ISDN lines in the USA <strong>and</strong><br />

Canada. Using a single code specifies all line specifications.<br />

IOCA - image object content architecture<br />

IOCS - input/output control system<br />

Page 52 of 106

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IOCTL - input/output control<br />

IOE - Input/Output Exp<strong>and</strong>er<br />

IOF - Intermediate Operations Facilities<br />

IOP - input/output processor<br />

IOPL - input/output privilege level<br />

IOPS - Internet Operators<br />

IOS - Internet operating system<br />

IOSGA - input/output support gate array<br />

IOSL - input/output exp<strong>and</strong>er to SCSI line circuit card<br />

IOTC - Information Operations Technical Center<br />

IOU - Input/Output Unit<br />

IOX - Input/Output Exchange<br />

IP - image processing<br />

IP - intelligent peripheral<br />

IP (Internet Protocol) - The network layer for the TCP/IP protocol<br />

suite used in Ethernet networks. It provides packet routing,<br />

fragmentation, <strong>and</strong> re-assembly through the date link layer.<br />

IP Access List - Also known as the IP Routing Table. The IP Route<br />

Server Node is the designated node that maintains the database<br />

for the IP routing table, <strong>and</strong> also advertises or floods the IP routes<br />

throughout the domain. Any Promina 800 series node can be the<br />

IP Route Server Node. There can be multiple IP Route Server<br />

Nodes within a domain providing they are configured as server<br />

nodes serving different routes. Each IP Route Server node can<br />

have 16 entries in the IP access list.<br />

IP Gateway Node - The IP Gateway Node is the designated<br />

Promina node that is connected to the external Network<br />

Management System (NMS) or PanaVue. This node broadcasts<br />

the IP access tables to all the network nodes <strong>and</strong> routers within<br />

the domain.<br />

IP Routing - IP packets are routed over the Promina network to<br />

enable applications running on the attached workstations to<br />

communicate with the Promina processor cards using the Internet<br />

Protocol. Designed for internal N.E.T. IP traffic only.<br />

IPA - imagery product archive<br />

IPA - intermediate power amplifier<br />

IPB - Intelligence Preparation of the Battlefield<br />

IPC - Information Policy Committee<br />

IPC - information processing center<br />

IPC - Infrastructure Protection Center (FBI)<br />

IPC - instructions per clock<br />

IPC - Intelligence Producers Council<br />

IPC - interprocess communications<br />

IPC - information protection cell<br />

IPDS - imagery processing <strong>and</strong> dissemination system<br />

IPDS - intelligent printer data stream<br />

IPDU - Internetworking protocol data unit<br />

IPF - information presentation facility<br />

IPF - integrated processing facility<br />

IPI - intelligent peripheral interface<br />

IPL - image product library<br />

IPL - interprocessor link<br />

IPLI - Internet private line interface<br />

IPM - impulses per minute<br />

Page 53 of 106<br />

IPM - interference prediction model<br />

IPM - internal polarization modulation<br />

IPMO - INFOSEC Program Management Office<br />

IPN - Intelligence Processing Network<br />

IPN - packet network<br />

IPOWS - Intelligence Processing Operator Workstation Model<br />

IPPD - integrated product <strong>and</strong> process development<br />

IPR - Internet Protocol Router<br />

IPRA - Internet policy registration authority<br />

IPRWG - Intellectual Property Rights Working Group<br />

IPS - Internet Protocol Suite<br />

IPSE - integrated project support environment<br />

IPSEC - Internet protocol security<br />

IPSO - Internet protocol security option<br />

IPTF - Infrastructure Protection Task Force (DOJ)<br />

IPX/SPX - Internet packet exchange/sequence packet exchange<br />

IQL - interactive query language<br />

IR - information retrieval<br />

IR - infrared<br />

IR&D - independent research <strong>and</strong> development<br />

IRAC - Interdepartment Radio Advisory Committee<br />

IRC - INFOSEC Research Council<br />

IRC - international record carrier<br />

IRC - Interagency Radio Committee<br />

IRC - Internet relay chat<br />

IRCM - Infrared Countermeasures<br />

IRD - integrated receiver/descrambler<br />

IrDA - Infrared Data Association<br />

IRDC - Intelligence Research <strong>and</strong> Development Council<br />

IRDS - information resource dictionary system<br />

IREO - infrared electro-optical<br />

IRIA - Infrared Information Analysis Center<br />

IRIG-B - type of global positioning system time code<br />

IRIS - imagery receiver <strong>and</strong> intelligence system<br />

IRIS - intelligence resources information system<br />

IRIS - Internal Revenue Information Service<br />

IRJ - intrared jammer<br />

IRL - interactive reader language<br />

IRM - information resources manager (management)<br />

IRMA - Information Resources Management Association<br />

IRMAC - Information Resource Management Advisory Committee<br />

IRMC - Information Resources Management College<br />

IRQ - (Interrupt Request) - A hardware signal sent to the CPU's<br />

interrupt h<strong>and</strong>ler, which diverts the attention of the computer,<br />

causing it to save the contents of the CPU registers, take action to<br />

satisfy the interrupting device, restores the registers contents, <strong>and</strong><br />

resumes processing.<br />

IRS - interface requirements specification<br />

IRST - infrared search <strong>and</strong> tracking

---

IRT - Incident Response Team<br />

IRTF - Internet Research Task Force<br />

IRV - interswitch rekeying variable<br />

IRVAT - infrared video automatic tracker<br />

IS - intelligence specialist<br />

IS - international st<strong>and</strong>ard<br />

IS - information systems<br />

IS - interswitch<br />

IS - information system<br />

IS-IS - Intermediate System to Intermediate System Protocol<br />

IS/AEF - Information Superiority/Air Expeditionary Force (USAF)<br />

ISA - industry st<strong>and</strong>ard architecture<br />

ISA - information system architecture<br />

ISA - instruction set architecture<br />

ISA - integrated service adapter<br />

ISAAC - Irreducible Semi-Autonomous Adaptive Combat (model)<br />

ISAC - Information Sharing <strong>and</strong> Analysis Center<br />

ISAD - Information Society <strong>and</strong> Development (conference)<br />

ISAM - indexed sequential-access management/method<br />

ISAR - inverse sidelooking airborne radar<br />

ISAR - inverse synthetic aperture radar<br />

ISAT - Information Science <strong>and</strong> Technology<br />

ISB - independent sideb<strong>and</strong><br />

ISB - Intelligence Systems Board<br />

ISB - Intelink Security Board<br />

ISB - initial staging base<br />

ISC - instruction set computer<br />

ISC/R - individual soldier’s computer/radio<br />

ISC2 - Integrated Space Comm<strong>and</strong> & Control<br />

ISD - image section descriptor<br />

ISD - instructional systems design<br />

ISDB - integrated satcom data base<br />

ISDB - integrated services digital broadcasting (Japan)<br />

ISDN-BRI - Integrated Services Digital Network-Basic Rate Interface<br />

ISDN-PRI - Integrated Services Digital Network-Primary Rate<br />

Interface<br />

ISDN (Integrated Service Digital Network) - An emerging<br />

international st<strong>and</strong>ard for public <strong>and</strong> private networks that aims to<br />

st<strong>and</strong>ardize protocols <strong>and</strong> interfaces for communications<br />

networks, <strong>and</strong> accommodate mixed transmission services. The<br />

service allows dialing on digital lines with multiple bi-directional<br />

"Bearer" channels each with a capacity of 56 or 64 Kbps <strong>and</strong> a<br />

single bi-directional "D channel". See BRI <strong>and</strong> PRI.<br />

ISDN 2 - A term used in Europe for ISDN BRI. See BRI.<br />

ISDN 30 - A term used in Europe for ISDN PRI. See PRI.<br />

ISDN Protocol - The "language" used for communication between<br />

the Telco’s switch <strong>and</strong> the customer’s Terminal Adapter. Each<br />

ISDN circuit has one protocol, <strong>and</strong> the protocol has no effect on<br />

where or whom one may call. See ETS 300, National ISDN, <strong>and</strong><br />

Custom ISDN.<br />

ISDNX - Integrated Services Digital Network Exchange<br />

ISEC - Information Systems Engineering Comm<strong>and</strong> (Army)<br />

Page 54 of 106<br />

ISEE - integrated software engineering environment<br />

ISEP - interconnect signal entry panel<br />

ISEW - Intelligence, Security, & Electronics Warfare<br />

ISG - Incoming Service Grouping. See Hunt Group<br />

ISH - integrated service hub<br />

ISHM - International Society for Hybrid Microelectronics<br />

ISI - Internet service infrastructure<br />

ISIS - individual soldier imaging subcomponent<br />

ISIS - integrated signals intelligence system<br />

ISIS - Integrated Systems <strong>and</strong> Information Services<br />

ISL - Interactive System Language<br />

ISL - interswitch link<br />

ISMA - Information Systems Management Agency (Army)<br />

ISMC - Intelink Service Management Center<br />

ISMF - interactive storage management facility<br />

ISMI - Interim Soldier Machine Interface<br />

ISN - initial sequence number<br />

ISO - isochronous<br />

ISO - (International St<strong>and</strong>ards Organization) - An organization that<br />

promotes the development of worldwide communications<br />

st<strong>and</strong>ards.<br />

ISOC - Internet Society<br />

ISOO - Information Security Oversight Office<br />

ISP - information services provider<br />

ISP - Information Survivability Program (DARPA)<br />

ISP - in-system programmable<br />

ISP - integrated service panel<br />

ISP - Internet Service Provider<br />

ISP - interrupt stack pointer<br />

ISP - interrupt status port<br />

ISPBX - integrated services private branch exchange<br />

ISPF - Interactive System Programming Facility<br />

ISPM - informal security policy model<br />

ISQP - Information Systems Quality Program<br />

ISR - information storage <strong>and</strong> retrieval<br />

ISR - intelligence, surveillance <strong>and</strong> reconnaissance<br />

ISR - interrupt service routine<br />

ISR - initial service request<br />

ISRC - International St<strong>and</strong>ard Recording Code<br />

ISS - information system security<br />

ISS - Intelligence Systems Secretariat<br />

ISS - information systems security<br />

ISSA - Information System Security Association<br />

ISSAA - Information Systems Selection <strong>and</strong> Acquisition Activity<br />

ISSB - Information Systems Security Board<br />

ISSC - information service support center<br />

ISSC - Information Systems Security Committee<br />

ISSC - Information Systems Software Center

---

ISSE - information system security engineering<br />

ISSES - imagery scientist softcopy exploitation system<br />

ISSM - Information Systems Security Manager<br />

ISSO - Information Services Support Office<br />

ISSO - Information Systems Security Officer<br />

ISSP - Information System Security Policy<br />

ISSR - Internal Software Specification Review<br />

ISSRS - ISS Real Secure<br />

ISSS - Initial Sector Suite System (FAA)<br />

ISSSB - Information Systems Software Support Bulletin<br />

ISST - infrared surveillance of surface targets<br />

IST - interswitch trunk<br />

IST - integrated services telephone<br />

IST - Integrated Systems Technology<br />

ISTA - Intelligence, Surveillance, <strong>and</strong> Target Acquisition<br />

ISTE - integrated services terminal equipment<br />

ISU - integrated switching unit<br />

ISV - independent software vendor<br />

ISVS - International Switched Voice Service<br />

ISWG - Information Systems Working Group (NATO)<br />

ISX - Information Superiority experiment<br />

ISYSCON - integrated systems control<br />

IT - information technology<br />

ITA - Integrated Theater Architectures<br />

ITA - International Telegraph Alphabet<br />

ITA - intruder alert<br />

ITAA - Information Technology Association of America<br />

ITABBS - Information Technology Acquisition Bulletin Board System<br />

ITAC - Information Technology industry Association of Canada<br />

ITAC - Intelligence <strong>and</strong> Threat Analysis Center<br />

ITACEN - Information Technology Acquisition Center<br />

ITACS - Improved Army Tactical Communications System<br />

ITAS - improved target acquisition system<br />

ITAWDS - integrated tactical amphibious warfare data system<br />

ITD - input transition detection<br />

ITDS - International Trade Data System (Treasury)<br />

ITEP - Interim Tactical Elint Processor<br />

ITG - interswitch trunk group<br />

ITI - Information Technology Industry Council<br />

ITI - information technology infrastructure (Navy)<br />

ITI - Information Technology Integration (GSA/FTS)<br />

ITINT - Information Technology Intelligence<br />

ITMRA - Information Technology Management Reform Act<br />

ITMSC - Information Technology Management Council<br />

ITN - Identification Tasking <strong>and</strong> Networking (FBI)<br />

ITO - information technology outsourcing<br />

ITO - Integrated Tasking Order<br />

ITOP - Information Technology Omnibus Procurement<br />

ITPB - Information Technology Policy Board (DOD)<br />

ITRUS - information technology reuse & software reuse program<br />

(service)<br />

ITS - Information Technology Service (GSA) (was IRMS)<br />

ITS - Institute for Telecommunication Sciences<br />

ITS - intelligent transportation system<br />

ITS - Internet telephony server<br />

ITSDN - Integrated Tactical <strong>and</strong> Strategic Digital Network<br />

ITSEC - information technology security evaluation criteria<br />

ITSEF - information technology security evaluation facility<br />

ITSEM - information technology security evaluation methodology<br />

ITSG - Information Technology St<strong>and</strong>ards Guidance<br />

ITSND - Integrated Tactical-to-Strategic Data Networking<br />

ITSO - International Telecommunications Satellite Organization<br />

ITST - Interim Thermal Signature Target<br />

ITU-TSS - International Telecommunications Union-<br />

Telecommunications St<strong>and</strong>ardization Section<br />

ITU - (International Telecommunications Union) - The umbrella<br />

organization that recommends international st<strong>and</strong>ards. CCITT<br />

<strong>and</strong> CCIR both belong to the ITU.<br />

ITV - interactive television<br />

ITW&A - integrated tactical warning <strong>and</strong> attack<br />

ITW/AA - integrated tactical warning/attack assessment<br />

IUAP - Internet User Account Provider<br />

IUDT - interface unit data terminal<br />

IUSS - integrated undersea surveillance system<br />

IV - initialization vector<br />

IV&V - independent verification & validation<br />

IVCS - interior voice communications system<br />

IVD - integrated voice & data<br />

IVDT - integrated voice data terminal<br />

IVHS - intelligent vehicle highways system<br />

IVHSA - Intelligent Vehicle-Highway System Act<br />

IVIS - interactive video information system<br />

IVIS - intervehicular information system<br />

IVR - integrated voice response<br />

IVS - interactive videodisk system<br />

IVSN - Initial Voice Switched Network<br />

IW - information warfare<br />

IW-D - Information Warfare-Defensive<br />

IWEB - Information Warfare Executive Board<br />

IWF - internetworking function<br />

IWF - information warfare flight<br />

IWF (Interworking Function) - A function that translates one<br />

protocol to another, or encapsulates one protocol in another. The<br />

CX module is an IWF that can h<strong>and</strong>le Frame Relay-to-ATM traffic.<br />

IWF - information warfare flight<br />

IWO - information warfare officer (Navy)<br />

IWS - Information Warfare Squadron<br />

Page 55 of 106

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IWS - intelligent workstation<br />

IWS - Interoperable Waveform St<strong>and</strong>ard<br />

IWSC - Information Warfare Security Center<br />

IWSDB - integrated weapon system data base<br />

IXC - interexchange carrier<br />

J<br />

J-1 - personnel directorate of a Joint Staff<br />

J-2 - intelligence directorate of a Joint Staff<br />

J-3 - operations directorate of a Joint Staff<br />

J-4 - logistics directorate of a Joint Staff<br />

J-5 - plans directorate of a Joint Staff<br />

J-6 - communications directorate of a Joint Staff<br />

J-7 - operational plans <strong>and</strong> interoperability directorate of a Joint Staff<br />

J-8 - force structure, resources, <strong>and</strong> assessment directorateof a Joint<br />

Staff<br />

JACS - joint automated CEOI system<br />

JACTS - joint air combat training system<br />

JAD - joint application design<br />

JAIC - Joint Air Intelligence Center<br />

JALADV - Joint Airlift Mission Advisory Message<br />

JALARR - Joint Airlift Mission Arrival Message<br />

JALIS - joint air logistics information system<br />

JALSCD - Joint Airlift All Schedule Message<br />

JAMPS - JINTACCS automated message preparation system<br />

JANAP - Joint Army-Navy-Air Force Protocol<br />

JANAP - Joint Army, Navy, <strong>and</strong> Air Force Publication<br />

JANOP - Joint Automatic Network Operating Procedure<br />

JAOC - Joint Air Operations Center<br />

JASORS - joint advanced special operations radio system<br />

JASPP - Joint Acquisition Systems Protection Program<br />

JBC - Joint Battle Center<br />

JBI - joint battlespace infosphere<br />

JBS - joint broadcast system<br />

JC2A - Joint Comm<strong>and</strong> <strong>and</strong> Control Augmentation Architecture<br />

JC2WC - Joint Comm<strong>and</strong> <strong>and</strong> Control Warfare Center<br />

JC3S - Joint C3 Simulation<br />

JCALS - joint computer-aided acquisition logistics system<br />

JCATS - joint cartographic analysis tool set<br />

JCCC - joint combat camera center<br />

JCCC - Joint Communications Control Center<br />

JCCT - joint combat camera team<br />

JCCT - Joint Comm<strong>and</strong> <strong>and</strong> Control Tactical Operations Center<br />

JCD - joint CERT database<br />

JCEOI - Joint Communications-Electronics Operation Instructions<br />

JCEWS - Joint Comm<strong>and</strong>ers Electronic Warfare Staff<br />

Page 56 of 106<br />

JCF - joint control facility<br />

JCIP - Joint/Combined interface procedure<br />

JCL - job control language<br />

JCMA - Joint COMSEC Monitoring Activity<br />

JCME - Joint Collection Management Element<br />

JCMO - Joint COMSEC Management Office<br />

JCMOICP - Joint COMSEC Management Office intertheater <strong>and</strong><br />

intra theater COMSEC package<br />

JCMT - joint collection management tools<br />

JCON - Justice Consolidated Office Network<br />

JCS - Joint Chiefs of Staff<br />

JCSAN - Joint Chiefs of Staff Alerting Network<br />

JCSC - Joint Communications Support Comm<strong>and</strong><br />

JCSI - Joint Comm<strong>and</strong> System Integration<br />

JCSS - Joint Communications Support Squadron<br />

JCTN - Joint Composite Tracking Network<br />

JDBC - Java database connectivity<br />

JDC - Java Development Kit<br />

JDIICS - Joint Deployable Information Inftrastructure Control System<br />

JDIICS-D - Joint Defense Information Infrastructure Control System-<br />

Deployed<br />

JDISS - Joint Deployable Intelligence Support System<br />

JDOL - Joint Doctrine Operations Laboratory<br />

JDSS - joint decision support system<br />

JDSSC - Joint Data Systems Support Center<br />

JECCS - Joint Enhanced Core Communications System<br />

JECEWS - Joint Electronic Combat Electronic Warfare Simulation<br />

JECG - joint exercise control group<br />

JEDEC - Joint Electronic Devices Engineering Council<br />

JEDI - joint expeditionary digital information system<br />

JEDMICS - joint engineering drawing (Data) management<br />

information <strong>and</strong> control system<br />

JEIDA - Japanese Electronics Industry Development Association<br />

JESS - joint exercise support system<br />

JETDS - joint electronics/designator systems<br />

JETS - joint emitter targeting system<br />

JEWC - Joint Electronic Warfare Center<br />

JEZ - Joint Engagement Zone<br />

JFACC - Joint Force Air Component Comm<strong>and</strong>er<br />

JFC - Joint Force Comm<strong>and</strong>ers<br />

JFCOM - Joint Forces Comm<strong>and</strong><br />

JFET - junction field effect transistor<br />

JFIF - JPEG file interchange format<br />

JFMO - joint frequency management office<br />

JFRDT - Joint Functional Requirements Development Team<br />

JFSOCC - joint force special operations component comm<strong>and</strong>er<br />

JIBSG - Joint Integrated Broadcast Steering Group<br />

JIC - Joint Intelligence Center

---

JIDAP - Joint Intel Dissemination Architecture Panel<br />

JIDL - Java interface definition language<br />

JIDRP - Joint Intel Dissemination Requirements Panel<br />

JIDS - Joint Information Defense System<br />

JIDS - Joint Intrusion Detection System<br />

JIEB - Joint Intelligence Executive Board<br />

JIEO - Joint Interoperability Engineering Organization<br />

JIEO - Joint Information <strong>and</strong> Engineering Orgaization<br />

JIEP - Joint Intelligence Estimate for Planning<br />

JIES - joint interoperability evaluation system<br />

JIIIC - Joint Initial Imagery Interpretation Center<br />

JILE - Joint Intelligence Liaison Element<br />

JIMC - Joint Information Management Center<br />

JINTACCS - joint interoperability of tactical comm<strong>and</strong> <strong>and</strong> control<br />

systems<br />

JIOC - Joint Information Operations Center<br />

JIOS - joint interoperability system<br />

JIPC - joint intelligence production complex<br />

JIPTL - joint integrated prioritized target list<br />

JISE - joint intelligence support element<br />

JITC - Joint Interoperability Test Comm<strong>and</strong><br />

JITF - Joint Integration Test Facility<br />

JITF - joint interface test force<br />

JITI - Joint in-Theater Injection Terminal<br />

Jitter - Short-term variation of the significant instants of a digital<br />

signal from their ideal positions in time. Short-term implies that<br />

these variations are high frequency (greater than 10 Hz).<br />

JIVA - Joint Intelligence Virtual Architecture<br />

JIVE - joint information viewing environment<br />

JIWG - Joint IA Operations Working Group<br />

JIWG - Joint Intelink Working Group<br />

JKMP - joint key management plan<br />

JKMS - Joint Key Management System<br />

JLMIS - joint logistics management information system<br />

JLSC - Joint Logistics Systems Center<br />

JLTC - Joint Language Training Center<br />

JMAPI - Java Management Application Programming Interface<br />

JMAPS - joint message analysis <strong>and</strong> processing system<br />

JMAS - joint mission application software<br />

JMASS - joint modeling <strong>and</strong> simulation system<br />

JMAST - Joint Mobile Ashore Support Terminal<br />

JMC - joint military comm<strong>and</strong><br />

JMCIS - joint maritime comm<strong>and</strong> information system<br />

JMCIS - joint military comm<strong>and</strong> information system<br />

JMCOMS - Joint Maritime Communications<br />

JMETL - Joint Mission-Essential Task List<br />

JMH - JSSIS message h<strong>and</strong>ler<br />

JMIC - Joint Military Intelligence College<br />

Page 57 of 106<br />

JMICS - joint maritime comm<strong>and</strong> <strong>and</strong> information system<br />

JMICS - JWICS Mobile Integrated Communications System<br />

JMIP - Joint Military Intelligence Program<br />

JMISE - Joint Military Intelligence Support Element<br />

JMITC - Joint Military Intelligence Training Center<br />

JMS - Java messaging service<br />

JMTK - Joint Mapping Tool Kit<br />

JNDI - Java naming <strong>and</strong> directory interface<br />

JNIDS - Joint National Intelligence Development Staff<br />

JNMS - Joint Network Management System<br />

JOA - joint operations area<br />

JOC - Joint Operations Center<br />

JOCS - Joint Operations Comm<strong>and</strong> System (UK)<br />

JODI - joint operational data base<br />

JOG-A - Joint Operations Graphics-Air<br />

JOG-G - Joint Operations Graphics-Ground<br />

JOIN - Joint Operations Intelligence Network<br />

JointSTARS - joint surveillance target attack radar system<br />

(JSTARS)<br />

JOPES - Joint Operation Planning <strong>and</strong> Execution System<br />

JOPS - joint operational planning system<br />

JOPSREP - joint operational planning system reporting system<br />

JOSS - JTF operations support system<br />

JOTS - joint operational tactical system<br />

JOVIAL - Jules’ Own Version of International Algebraic Language<br />

JPAV - joint personnel asset visibility<br />

JPEG - Joint Photographic Experts Group<br />

JPNIC - Japan Network Information Center<br />

JPO-STC - Joint Program Officer for Special Technical<br />

Countermeasures<br />

JPOTF - Joint Psychological Operations Task Force<br />

JRB - JROC Review Board<br />

JRE - Java Runtime Environment<br />

JRFL - Joint Radio (restricted) Frequency List<br />

JRIC - Joint Reserve Intelligence Center<br />

JRIP - Joint Reserve Intelligence Program<br />

JROP - Java remote object protocol<br />

JRSC - jam-resistant secure communications<br />

JRVIO - Joint Reserve Virtual Information Organizations<br />

JS - Joint Staff<br />

JSAN - joint staff automation for the nineties<br />

JSAS - Joint Force Air Component Comm<strong>and</strong>er Situational<br />

Awareness System<br />

JSC - Joint Spectrum Center<br />

JSEAD - joint suppression of enemy air defense<br />

JSECTS - joint service electronic combat test system<br />

JSICP - Joint Staff intertheater COMSEC package<br />

JSIMS - joint simulation system

---

JSIPS - joint service imagery processing system<br />

JSIPS-N - joint service imagery processing system-Navy<br />

JSMB - Joint Space Management Board<br />

JSMS - joint spectrum management system<br />

JSOACC - Joint Special Operations Air Component Comm<strong>and</strong>er<br />

JSOACC - Joint Special Operations Air ComponentComm<strong>and</strong>er<br />

JSOTF - joint special operations task force<br />

JSS - joint surveillance system<br />

JSSIS - joint staff support information system<br />

JSTARS - joint surveillance target attack radar system (JointSTARS)<br />

JSWS - Joint services workstation<br />

JSYSCON - joint systems control<br />

JTACS - joint tactical area communications system<br />

JTAGS - Joint Tactical Air-Ground Station<br />

JTAO - joint tactical air operations<br />

JTAP - joint terrain analysis program<br />

JTASC - Joint Training, Analysis, <strong>and</strong> Simulation Center<br />

JTAV - Joint Total Asset Visibility<br />

JTC - Joint Technical Committee<br />

JTC3A - Joint Tactical Comm<strong>and</strong>, Control, <strong>and</strong> Communications<br />

Agency<br />

JTCB - Joint Targeting Control Board<br />

JTCF - joint TCF<br />

JTCMO - Joint Theater COMSEC Management Office<br />

JTCS - joint tactical combat training system<br />

JTCTS - joint tactical combat training system<br />

JTD - Joint Technology Demonstration<br />

JTDSDA - Joint Tactical Directory System Design Architecture<br />

JTF - Joint Task Force<br />

JTF-CND - Joint Task Force-Computer Network Defense<br />

JTF - joint task force<br />

JTFE - joint task force enabler<br />

JTFP - Joint Tactical Fusion Program<br />

JTG - Joint Technical Group<br />

JTIDS - Joint Tactical Information Distribution System<br />

JTLS - Joint Theater Level Simulation<br />

JTM - job transfer manipulation<br />

JTMD - Joint Theater Missile Defense<br />

JTRB - Joint Telecommunications Resources Board<br />

JTRS - joint tactical radio system<br />

JTRS - joint tactical radio system<br />

JTS - Java transaction service<br />

JTS - Justice Telecommunications Service<br />

JTSA - Joint Tactical SIGINT Architecture<br />

JTSDA - Joint Tactical System Design Architecture<br />

JTT - Joint Tactical Terminal<br />

JUDI - joint universal data interpreter<br />

JUSE - joint user switch exercise<br />

Page 58 of 106<br />

JUST - Justice Network<br />

JUSTIS - joint uniform service technical information system<br />

JVDN - joint voice <strong>and</strong> data networks<br />

JVIDS - joint visually integrated display system<br />

JVIS - Joint Visual Information Services<br />

JVM - Java Virtual Machine<br />

JWAC - Joint Warfare Analysis Center<br />

JWARS - joint warfare system<br />

JWCA - Joint Warfighting Capability Assessment<br />

JWFC - Joint Warfighting Center<br />

JWG - Joint Working Group<br />

JWICS - Joint Worldwide Intelligence Communications System<br />

JWID - Joint Warfare Interoperability Demonstration<br />

JWRAC - Joint Web Risk Assessment (Analysis) Cell<br />

K - Kelvin<br />

KA - Keep-Alive<br />

KAD - Kuwait Air Defense<br />

KAE - Key Agile Encryption<br />

K<br />

KAM - Cryptographic Army Operational Maintenance Manual<br />

KAO - cryptographic operating manual<br />

KAPP - Key Asset Protection Program<br />

KAWS - Korean analysis work station<br />

KB - kilobyte<br />

Kb - kilobit<br />

KBE - knowledge-based engineering<br />

Kbps - Kilobits per second<br />

KBPS - kilobytes per second<br />

KBS - knowledge-based systems<br />

KBSA - knowledge-based software assistant<br />

KBW - knowledge-based warfare<br />

KCPT - kinematic carrier phase tracking<br />

KDC - key distribution center<br />

KDD - key distribution device<br />

KDT - key definition table<br />

KE - kinetic energy<br />

KEA - Key Exchange Algorithm<br />

KEK - key encryption key<br />

Key Telephone System - A system that allows multiple telephones<br />

to share multiple pre-determined telephone lines. The system<br />

provides indicators to allow the users to underst<strong>and</strong> the status of<br />

each line available on a given phone. It is up to the user to<br />

provide the intelligence to select an unused line, or answer a<br />

ringing line, for example. See also PBX.<br />

keymat - keying material<br />

KG - key generator

---

KHz - The abbreviation for kilohertz or 1,000 cycles per second.<br />

KIF - Knowledge Interchange Format<br />

KLOC - thous<strong>and</strong> lines of code<br />

KM - knowledge management<br />

km - kilometer<br />

Km/h - kilometers per hour<br />

KMC - key management center<br />

KMI - Key Management Infrastructure<br />

KMP - key management plan<br />

KOK - key operating key<br />

KPC - Kernal Platform Compliance (DOD)<br />

KPI - kernel programming interface<br />

KPTC - KG patch<br />

KQML - Knowledge Query <strong>and</strong> Manipulation<br />

KRA - Key Recovery Alliance<br />

KRC - Key Recovery Center<br />

KRF - Key Recovery Field<br />

KRS - knowledge retrieval system<br />

KSD - Key Storage Device<br />

KTS - key telephone system<br />

KU - commercial SHF frequency b<strong>and</strong><br />

kVA - kilovolt ampere<br />

KVG - key variable generators<br />

KVM - keyboard/video/mouse<br />

KVM - key variable management<br />

kW - kilowatt<br />

KY - voice encryption/decryption device<br />

L - length<br />

L/L - long local<br />

L2F - Layer Two Forwarding<br />

L<br />

L2TP - Layer Two Tunneling Protocol<br />

LA - line amplifier<br />

LAB - logic array block<br />

LAD-GNSS - local area differential global navigation satellite system<br />

LAN (Local Area Network) - A type of high-speed data<br />

communications arrangement wherein all segments of the<br />

transmission medium (typically coaxial cable, twisted-pair wire or<br />

optical fiber) are in an office or campus environment under the<br />

control of the network operator.<br />

LANACS - local area network asynchronous connection server<br />

LANE - local area network emulation<br />

LANET - Lucent Limitless ATM Network<br />

LANTDIS - Atlantic Comm<strong>and</strong> deployable intelligence terminal<br />

LAPB - link access procedure balanced (protocol)<br />

LAPD - link access procedure direct (protocol)<br />

LAPM - link access procedure for modems<br />

LAS - local area system<br />

LASINT - Laser Intelligence<br />

LAT - local access terminal<br />

LATA - Local Access <strong>and</strong> Transport Area. The area within which<br />

calls are routed by your Local Exchange Carrier (LEC). Under the<br />

divestiture of the Bell System calls going outside of this area must<br />

be h<strong>and</strong>led by an Interexchange carrier (IEC). With the latest<br />

round of de-regulation the usual IEC companies are being<br />

allowed to compete in the IntraLATA long distance market <strong>and</strong><br />

LECs are beginning to be permitted to h<strong>and</strong>le InterLATA calls.<br />

Latching Loopback - A (more) complex method of implementing<br />

network loop-in. A complex sequence of NCCs <strong>and</strong> specific data<br />

patterns controls implementation <strong>and</strong> release of a latching<br />

loopback. Latching loopback requires a specific NCC to release or<br />

"unlatch" the loop-in, whereas "nonlatching" loopback is released<br />

when the network side stops transmitting the loopback code. A<br />

latching loopback provides a means to perform more thorough<br />

testing because any data pattern can be transmitted between the<br />

time the loop-in is "latched" <strong>and</strong> "unlatched," whereas nonlatching<br />

loopback requires that loopback code be transmitted every other<br />

byte. Also see nonlatching loopback.<br />

LAW - local authority workstation<br />

LAW - light antitank weapon<br />

LAWN - local area wireless network<br />

lb - pound<br />

LB - local battery<br />

LBA - logical block addressing<br />

LBO - line built out<br />

LBS - local base station<br />

lbs - pounds<br />

LBSS - lightweight battlefield surveillance system<br />

LBT - listen before talk<br />

LBT1 - limited b<strong>and</strong>width T1<br />

LBX - low b<strong>and</strong>width X<br />

LC - line concentrator<br />

LCB - line circuit board<br />

LCC - L<strong>and</strong> Component Comm<strong>and</strong>er<br />

LCC - local control center<br />

LCC - logic control cell<br />

LCC - amphibious comm<strong>and</strong> ship<br />

LCC - link communications circuit<br />

LCCES - light contingency communications extension switch<br />

LCCP - light contingency communications package<br />

LCCPS - light contingency communications parent switch<br />

LCCS - Life Cycle Contractor Support (For C4I)<br />

LCD - Liquid Crystal Display<br />

LCDL - low cost data link<br />

LCES - line conditioning equipment scanner<br />

LCMS - Local COMSEC Management System<br />

LCP - link control protocol<br />

LCR - least-cost routing<br />

LCS - large complex systems<br />

LCSE - life cycle software engineering<br />

Page 59 of 106

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LCSEC - Life Cycle Software Engineering Center<br />

LCSS - l<strong>and</strong> combat support system<br />

LCSS - life cycle software support<br />

LCT - low cost terminal<br />

LCU - lightweight computer unit<br />

LD - load<br />

LD-CELP - (Low Delay Code Excited Linear Prediction) - A voice<br />

compression module which uses a backward-adaptive analysisby-synthesis<br />

algorithm. This voice module offers the advantages<br />

of toll quality voice compression while maintaining the ability to<br />

transmit group III FAX.<br />

LD-CELP Post-Filter - The Post-Filter is used to add additional<br />

voice quality to the decompressed voice signal at end-points in<br />

the network.<br />

LDA - logical device address<br />

LDAP - Lightweight Directory Access Protocol<br />

LDC - lightweight deployable communications<br />

LDF - lightweight digital facsimile<br />

LDGPS - local area differential global positioning system<br />

LDI - long dwell imagery<br />

LDI - line driver interface<br />

LDM - limited distance modem<br />

LDMX - Local Digital Message Exchange<br />

LDN - Listed Directory Number. When a number of Telco channels<br />

share the same hunt group it is customary to give out only one<br />

phonenumber for the group, although generally each channel will<br />

have its own number. The number given out is the "Listed<br />

Directory Number" since that is the number that would be listed in<br />

the Telephone Directory <strong>and</strong> given to customers. See also Hunt<br />

Group.<br />

LDO - limited duty officer<br />

LDR - low data rate<br />

LDR - leader<br />

LDRM - low data rate multiplexer<br />

LDS - long distance service<br />

LDU - local distribution unit<br />

LDV - lock data views<br />

LDVM - legacy PPT/Voice Module<br />

LEA - Law Enforcement Agency<br />

LEAF - law enforcement access field<br />

LEAP - leading edge advanced packages<br />

LEASAT - leased satellite<br />

Leased Line - A dedicated circuit, typically supplied by the<br />

telephone company, that permanently interconnects two or more<br />

user locations; generally voice-grade in capacity <strong>and</strong> range of<br />

frequencies supported. It is typically analog, though sometimes it<br />

refers to DDS subrate digital channels (2.4 to 9.6 kbps); could be<br />

point-to-point or multipoint.<br />

Least-Cost Routing - The capability of a switch, either a node or a<br />

PBX, to automatically determine an optimal route establishing a<br />

circuit; also called automatic route selection.<br />

LEC - Local Exchange Carrier. Your local telephone service provider<br />

which is either an RBOC or an Independent. In other words, a<br />

traditional phone company. In contrast to CLEC or IEC.<br />

LECP - line ECP<br />

LED - light emitting diode<br />

Page 60 of 106<br />

LEM - language extension module<br />

LEN - low entry networking<br />

LEN - Large Extension Node<br />

LENS - large extension node switch<br />

LEO - Law Enforcement On-Line (FBI)<br />

LEO - low Earth orbit<br />

LES - Leading Edge Services (DISA)<br />

LES - Litton Emulation Software<br />

LF - low frequency<br />

LFB - look ahead for busy<br />

LFI - last file indicator<br />

LFN - long fat network<br />

LFSR - linear-feedback shift-register<br />

LG - loop group<br />

LGDT - load global descriptor table<br />

LGM - Loop Group Multiplexer<br />

LGSM - light ground station module<br />

LH - left h<strong>and</strong><br />

LHA - general purpose amphibious assault ship<br />

LHD - general purpose amphibious assault ship (with internal dock)<br />

LIA - Legacy Interface Adapter<br />

LIDT - load interrupt descriptor table<br />

LIFO - last in, first out<br />

LIM - Litton Interface Manager<br />

LIMS - laboratory information management system<br />

LINCS - Leased Interfacility National Airspace Communications<br />

System<br />

Line - An electrical connection between a telephone service<br />

provider’s switch (LEC or CLEC) <strong>and</strong> a telephone terminal or Key<br />

system. An electrical connection between a telephone service<br />

provider’s switch <strong>and</strong> another switch is called a trunk. Note that<br />

some type of physical lines offer more than one channel. I.E. a<br />

BRI circuit has 2 channels, called B channels. This term is a<br />

confusing one. See Channel. See also Station Line<br />

Line Card - The circuit in the Telco switch to which your line is<br />

connected. On an ISDN circuit the line card performs a role<br />

analogous to the NT1 in adapting <strong>and</strong> equalizing the circuit.<br />

Line Coding, T1 - The clock signal for T1 is derived at the far end<br />

from the data bits themselves. Therefore T1 lines have certain<br />

restrictions as to the data allowed. No more than 15 zeros shall<br />

be sent in a row; <strong>and</strong> average density of 12.5% ones must be<br />

maintained. The CSU is responsible to ensure that these<br />

requirements are met. The line encoding method, AMI or B8ZS<br />

determines exactly how these requirements are met while still<br />

allowing recovery of the original data at the far end. Your Telco<br />

will determine the method used on a specific circuit. B8ZS is<br />

preferred. E1 circuits have similar restrictions. HDB3 is preferred<br />

for E1 circuits.<br />

Line Format, T1 - Modern T1 circuits usually use either Superframe<br />

(sometimes called SF or D4) or Extended Superframe<br />

(sometimes called ESF) line formatting. The type of framing used<br />

is determined by your Telco. ESF is preferred. See ESF <strong>and</strong> SF<br />

Line Hit - An incident of electrical interference causing unwanted<br />

signals to be introduced onto a transmission circuit.<br />

Link - A circuit or transmission path, including all equipment,<br />

between a sender <strong>and</strong> a receiver. A logical connection between<br />

two nodes consisting of one or more T1/T3 trunks.

---

Link Cost - See routing cost.<br />

Link ID - Links are identified through the Operator Interface by<br />

indicating the nodes connected by a link. For example, the link<br />

between Nodes 5 <strong>and</strong> 7 is referred to as N5N7 or N7N5.<br />

LINT - line interface number<br />

LIP - large internet packet<br />

LIPS - logistics information processing system<br />

LIRCM - large (aircraft) infrared countermeasures<br />

Listed Directory Number - See LDN<br />

LITE - Lightweight Integrated Telecommunications Equipment<br />

LITINT - literature intelligence<br />

LIU - LAN interface unit<br />

LIU - line interface unit<br />

LIWA - l<strong>and</strong> information warfare activity<br />

LKG - Loop Key Generator<br />

LKGI - loop key generator interfaces<br />

LKM - local key manager<br />

ll - numbers<br />

LLC - logical link control<br />

LLCSC - lower level computer software component<br />

LLDT - load local descriptor table<br />

LLLTV - low light level television<br />

LLP - lower layer protocol<br />

LM - loop modem<br />

LMD - loop group multiplexer <strong>and</strong> demultiplexer<br />

LMDS - Local Multi-point Distribution Service<br />

LMF - language media format<br />

LMI - (Local Management Interface) - A protocol used for controlling<br />

the connection between the User <strong>and</strong> the Network.<br />

LMR - l<strong>and</strong> mobile radio<br />

LMRDFS - lightweight man-transportable radio direction finding<br />

system<br />

LMS - lightweight modular shelter<br />

LMSS - l<strong>and</strong> mobile satellite system<br />

LMST - lightweight multib<strong>and</strong> satellite terminal<br />

LMSW - load machine status word<br />

LMU - local management unit<br />

LN - link node<br />

LNA - local network attachment<br />

LNA - low noise amplifier<br />

LNE - Late Net Entry<br />

LNO - Liaison Officer<br />

LNP - Local Number Portability<br />

LNS - leader node switch<br />

LNX - flood search numbering plan prefix<br />

LNX+XXXX - format for a MSE user's telephone number<br />

LO - low<br />

LOAC - Laws of Armed Conflict<br />

Page 61 of 106<br />

Load - Unit - A measure of the processing capability of each<br />

processor (PPM <strong>and</strong> PLM) module.<br />

LOC - lines of code<br />

LOC - local<br />

Local Access <strong>and</strong> Transport Area - See LATA.<br />

Local Exchange Carrier - See LEC <strong>and</strong> CLEC.<br />

Local Loop - A diagnostic technique that loops data out to local<br />

cable <strong>and</strong> terminal equipment to isolate failures.<br />

Local UI - A user Interface application resident on the same machine<br />

as SSIMP-LR Main.<br />

LOCE - Linked Operations Intelligence Capability-Europe<br />

LOCIS - Library of Congress Information System<br />

LOCK - logical coprocessor kernel<br />

LOF - lowest operating frequency<br />

log - logistics<br />

LOGAIS - logistics automated information system<br />

Logical Slots - A measure of the b<strong>and</strong>width amount required for the<br />

operation of a specific module. Each shelf in a node can support a<br />

specific number of logical slots.<br />

LOI - loss-of-input<br />

LOICE - Link Operations Intelligence Center-Europe<br />

Long Distance - 1. If your local Telco is a former Bell Operating<br />

Company then any call outside of your LATA or any Interstate call<br />

is considered long distance <strong>and</strong> is h<strong>and</strong>led by an IEC 2. If your<br />

local phone company is an independent then only interstate <strong>and</strong><br />

inter-phone company calls are considered long distance. The<br />

above is true regardless of whether you are referring to a<br />

dedicated line or a dial up call 3. However, under the current state<br />

of deregulation, toll calls within a LATA may now be covered by<br />

the IEC, <strong>and</strong> in some cases RBOCs are being permitted to h<strong>and</strong>le<br />

InterLATA calls.<br />

LOOP - MUX loop multiplexer<br />

Loop - 1. A diagnostic technique that loops data out or in to the<br />

equipment to isolate failures. 2. The telephone circuit from the CO<br />

to the customer's premises. Generally refers to a copper cable<br />

circuit.<br />

Loop Qualification - Process of actually measuring the loss on a<br />

prospective ISDN line to see if it can be used for ISDN service .<br />

The actual loss on the line determines whether ISDN service can<br />

be offered without a repeater. Generally ISDN is available up to<br />

18,000 feet from the serving Central Office. It may not be<br />

available within this range, or may be available further from the<br />

CO. Only a loop qualification can tell for sure. Not all Telcos will<br />

extend ISDN lines with Repeaters.<br />

Loop Start Line - A plain old telephone line. The telephone terminal<br />

signals the "off hook" condition by allowing DC current to flow.<br />

See Ground Start Trunk. See also Glare.<br />

Loop Start Trunk - A plain old telephone line connected to a PBX<br />

switch. See Loop Start Line. The PBX signals the "off hook"<br />

condition by allowing DC current to flow. Ground Start Trunks are<br />

generally preferred for use on PBXs to prevent glare. See Ground<br />

Start Trunk. See also Glare.<br />

Loop Timing - Loop timing indicates that the transmit <strong>and</strong> receive<br />

frame bits are synchronized. When the operator selects the Loop<br />

Timing parameter, the voice card obtains it’s transmit <strong>and</strong><br />

receive clock from the incoming bit stream.<br />

Loop-in - A transmission capability in which the received signal is<br />

returned (looped in) to the network.<br />

Loop-out - A transmission capability in which the received signal is<br />

returned (looped out) to the physical interface. In the SDMS port 0<br />

bundle context, the meaning of loop-out is straightforward. In the<br />

subrate port context, it is confusing because DSMS ports have no

---

physical interface; data is looped back towards the remote data<br />

port. To the remote QSD port, this looks like a loop-in.<br />

Loopback - A transmission capability in which the received signal is<br />

returned (looped back) to the sender.<br />

LORAN-C - Long-Range Aid to Navigation<br />

LOS - line of sight<br />

LOS - loss of signal<br />

LOSH - line of sight (high capacity)<br />

LOSL - line-of-sight link<br />

LOSM - line of sight (Marine Corps)<br />

LOW - link orderwire<br />

LOW - link orderwire<br />

LP - linearly polarized (mode)<br />

LP - linear programming<br />

LP - linking protection<br />

LP - log periodic (antenna)<br />

LP - BK loop back<br />

LP - listening point<br />

LPA - linear power amplifier<br />

LPC - linear predictive coding<br />

LPC - longitudinal parity check<br />

LPCK - Loop Clock<br />

LPCS - lateral parent COMSEC switch<br />

LPD - low probability of detection<br />

LPD - Line Printer Daemon (protocol)<br />

LPD - amphibious transport dock<br />

LPE - low probability of exploitation<br />

LPI - low probability of interference (intercept)<br />

LPP - line printer/plotter<br />

LPU - line printer unit<br />

LPVM - legacy PTT voice module<br />

LQA - link quality analysis<br />

LRAU - local radio access unit<br />

LRC - longitudinal redundancy check<br />

LRDM - low rate data multiplexer<br />

LRF - laser rangefinder<br />

LRI - limited range of intercept<br />

LRM - language reference manual<br />

LRM - low rate multiplexer<br />

LRM - low rate modem<br />

LRSU - Long Range Surveillance Unit<br />

LRU - line replaceable unit<br />

LS - LKG selector<br />

LS - light stream<br />

LS (Low Speed) Trunk Module - A b<strong>and</strong>width efficient trunk module<br />

primarily used as a low b<strong>and</strong>width trunk.<br />

LS - low speed<br />

LSB - least significant bit<br />

Page 62 of 106<br />

LSB - lower sideb<strong>and</strong><br />

LSC - least significant character<br />

LSCDM - Low-Speed Cable Driver Modem<br />

LSD - large screen display<br />

LSD - least significant digit<br />

LSD - large screen display<br />

LSD - l<strong>and</strong>ing ship, dock<br />

LSDIS - light & special division interim sensor<br />

LSE - local subscriber environment<br />

LSI - Large-Scale Integration<br />

LSL - link support layer<br />

LSMS - local service management system<br />

LSP - Logistics Support Package<br />

LSPR - Low-Speed Pulseform Restorer<br />

LSRD - Loop Start Ringdown<br />

LSRR - loose source <strong>and</strong> record route<br />

LSSC - Logistics Systems Software Center (Army)<br />

LSTDM - low-speed time division multiplexers<br />

LT - laser transmitter<br />

LT - local terminal<br />

LTBF - Local Timing Buffer<br />

LTC - line traffic coordinator<br />

LTE - Late Traffic Entry<br />

LTG - Local Timing Generator<br />

LTM - Line Termination Module<br />

LTOIV - latest time of intelligence value<br />

LTU - Line Termination Unit<br />

LTU - TCTC transmit cipher text clock, transit case technical control<br />

LU - logical unit<br />

LUA - logical unit application<br />

Lucent Technologies - Company which now makes the former<br />

AT&T 5ESS switch, as well as various other pieces of Telco gear<br />

<strong>and</strong> semiconductors. Lucent was split off from AT&T in 1996 <strong>and</strong><br />

owns Bell Labs. As of approximately 1999 Lucent sold their<br />

telephone set manufacturing business (<strong>and</strong> the right to use the<br />

AT&T name on telephone sets) to V-Tech. V-Tech is using the<br />

AT&T name <strong>and</strong> line as their high-end line.<br />

LUF - lowest usable frequency<br />

LUT - look up table<br />

LVDTC - local video display terminal controller<br />

LVM - large voice module<br />

LWIR - long wave infrared<br />

LWIRJ - long wavelength infrared jammer<br />

LWSD - large wall screen display<br />

LWX (LAN/WAN Exchange) Module - This module provides an<br />

internetworking connection between geographically separated<br />

LANs (local area networks) to connect to a WAN (wide area<br />

network).<br />

LZ - l<strong>and</strong>ing zone

---

m - meters<br />

M<br />

M-Frame - Basic frame structure in DS3 datastream. Every M-Frame<br />

is divided into seven subframes of 680 timeslots. Each subframe<br />

is then divided into eight blocks of 85 time slots, the first of which<br />

is a control bit. The remaining bits are available for information<br />

bits. The control bits include X-bits, F-bits, M-bits, P-bits, <strong>and</strong> Cbits.<br />

The total number of time slots is 4760 with 4704 time slots<br />

reserved for data.<br />

M&FI - Maintenance <strong>and</strong> Fault Isolation<br />

M/C - multichannel<br />

M/S - maintenance/supervisor<br />

M13 - Multiplexer for T1 to subrated asynchronous T3 datastreams.<br />

MA - master<br />

mA - milliamperes<br />

MA - master<br />

MAA - Metropolitan Area Acquisition (GSA/FTS)<br />

MAC - m<strong>and</strong>atory access control<br />

MAC - message authentication code<br />

MAC - (Media Access Control) - MAC is a 6-byte hardware address<br />

(set when manufactured) that is unique to each PSM.<br />

MACA - multiple access collision avoidance (protocol)<br />

MACCS - Marine air comm<strong>and</strong> <strong>and</strong> control system<br />

MACG - marine air control group<br />

MACSAT - multiple access commercial satellite<br />

MAE - Metropolitan Area Exchanges (Internet)<br />

MAFET - microwave <strong>and</strong> analog front end technology<br />

MAGIC - multidimensional application <strong>and</strong> gigabit internetwork<br />

consortium<br />

MAGIIC - Mobile Ground Imagery Interpretation Center<br />

MAGIS - Marine Air-Ground Intelligence System<br />

MAGR - miniaturized airborne GPS receiver<br />

MAGTF - Marine Air Ground Task Force<br />

MAIS - major automated information systems<br />

MAISRC - Major Automated Information Systems Review Council<br />

MAJCOM - major comm<strong>and</strong><br />

MaJIWC - Maritime Joint Information Warfare Center<br />

MALD - miniature air-launched decoy<br />

MAMA - man-machine<br />

MAMS - Military Airspace Management Systems<br />

MAN - Metropolitan Area Network<br />

man - manual<br />

MANT - maintenance<br />

MANTIS - manpack tactical intelligence system<br />

MAP - manufacturing automation (applications) protocols<br />

MAP-D - multi-application processor for DEFINITY<br />

MAPI - messaging application programming interface<br />

Mapping - In network operations, the logical association of one set<br />

of values, such as addresses on one network, with quantities or<br />

Page 63 of 106<br />

values of another set, such as devices on another network (for<br />

example, name-address mapping, internetwork-route mapping,<br />

protocol-to-protocol mapping).<br />

MAPSE - Minimal Ada Programming Support Environment<br />

MARC - multitechnology automated reader card<br />

MARCEMP - manual relay center modernization program<br />

MARFOR - Marine Forces<br />

MARFORPAC - MARFOR Pacific<br />

MARIS - Maritime Information Systems Project<br />

MARKS - The Modern Army Recordkeeping System<br />

MARS - military affiliated (amateur) radio system<br />

MARTI - microprocessor <strong>and</strong> radio telephone interconnection<br />

MAS - multiple award schedule<br />

MASC - Modeling, Analysis, <strong>and</strong> Simulation Center<br />

MASINT - measurement <strong>and</strong> signature intelligence<br />

MAST - Mobile Ashore Support Terminal<br />

MAST CENT MAST central<br />

MAST EUR MAST Europe<br />

MAST PAC MAST Pacific<br />

Master Clock - The source of time signals (or the signals<br />

themselves) that all nodes use for synchronization.<br />

Master/Slave Glare Resolution - Provides a single path of<br />

continuity for data <strong>and</strong> signaling between end points in a glare<br />

situation, where the node with the lower node number is termed<br />

the "master" <strong>and</strong> its call goes through. The node with the higher<br />

number is termed the "slave" <strong>and</strong> its call fails. The slave drops its<br />

call <strong>and</strong> hooks up the incoming call in a glare situation, <strong>and</strong> the<br />

master refuses the incoming call. Also see glare.<br />

Matrix Switch - A device that allows a number of channels,<br />

connected via serial interfaces (typically RS-232C), to connect,<br />

under operator control, to designated remote or local analog<br />

circuits, as well as to other serial interfaces.<br />

MATT - multi-mission advanced tactical terminal<br />

MATTS - Mobile Air Transportable Telecommunications System<br />

MAU - media (medium) access unit<br />

MAU - multistation access unit<br />

MAWS - missile approach warning system<br />

MAX - maximum<br />

MAXI - Modular Architecture for the Exchange of Information<br />

(Intelligence)<br />

MB - megabyte<br />

Mb - megabit<br />

MBA - multibeam antenna<br />

MBB - multib<strong>and</strong> beacon<br />

MBC - memory bus controller<br />

MBC - mortar ballistics computer<br />

MBDL - missile battery data link<br />

MBMR - multib<strong>and</strong> multimode radio<br />

MBONE - multicast backbone<br />

Mbps - megabits per second<br />

MBps - megabytes per second<br />

MBR - master boot record

---

MBRR - magnetic bubble recorder-reproducer<br />

MC-TDMA - multiple carrier TDMA<br />

MC - media converter<br />

MC - Marine Corps<br />

MC&G - mapping, charting, <strong>and</strong> geodesy<br />

MC2 - measurement communications <strong>and</strong> computing<br />

MCA - Maritime Cryptologic Architecture<br />

MCA - micro channel architecture<br />

MCAD - mechanical computer aided design<br />

MCB - memory control block<br />

MCB - message control block<br />

MCC - master control center<br />

MCC - Mobile Comm<strong>and</strong> Center<br />

MCC - movement control center<br />

MCCC - Marine Communications Control Center<br />

MCCR - mission critical computer resources<br />

MCD - manipulative communications deception<br />

MCD - missile countermeasure device<br />

MCDES - Malicious Code Detection <strong>and</strong> Eradication System<br />

MCDN - Marine Corps Data Network<br />

MCE - modular control equipment<br />

MCE - mission control element<br />

MCEB - Military Communications-Electronics Board<br />

MCEN - Marine Corps Enterprise Network<br />

MCG&I - mapping, charting, geopositioning, & imagery<br />

MCGA - multicolor graphics array<br />

MCHS - Marine Common Hardware Suite<br />

MCI - media control interface<br />

MCIA - Marine Corps Intelligence Activity<br />

MCIC - Marine Corps Intelligence Center<br />

MCIS - management control information system<br />

MCIS - Maritime Comm<strong>and</strong> Information System<br />

MCM - multicarrier modulation<br />

MCM - multichip module<br />

MCP - massively concurrent processing<br />

MCP - monitor <strong>and</strong> control protocol<br />

MCP - MCEB Military Communications Procedures <strong>and</strong> Publications<br />

Panel<br />

MCPC - multiple channels per carrier<br />

McPIM - Media Converter Port Interface Module<br />

MCPP - multicircuit patch panel<br />

MCPS - modular comm<strong>and</strong> post system<br />

MCPS - Modular Comm<strong>and</strong> Post System<br />

MCPU - maintenance control processor unit<br />

MCR - minimum cell rate<br />

MCRC - Master Control <strong>and</strong> Reporting Center<br />

MCS - mission control segment<br />

MCS - Maneuver Control System<br />

MCS - message conversion center<br />

MCSF - mobile cryptologic support facility<br />

MCSF - mobile cryptologic support facility<br />

MCSR - minimum commercial security requirements<br />

MCSSC2 - Marine Combat Service Support Comm<strong>and</strong> <strong>and</strong> Control<br />

System<br />

MCTCA - Marine Corps Tactical Communications Architecture<br />

MCTL - Military Critical Technologies List<br />

MCTSSA - Marine Corps systems support activity<br />

MCU - mobile control unit<br />

MCU - multipoint control unit<br />

MCU - maintenance communications unit, multipoint control unit<br />

MCU - master control units, multiple conference units<br />

MCU - mobile COMSEC unit<br />

MCW - modulated continuous wave<br />

MD - message digest<br />

MDA - monochrome display adapter<br />

MDA - miniaturized dual function adapter<br />

MDAC - multi-channel data acquisition computer<br />

MDAS - multiple data base access system<br />

MDCI - Multi-Discipline Counter Intelligence<br />

MDDB - multidimensional database<br />

MDE - mission development element<br />

MDF - main distribution frame<br />

MDI - multiple document interface<br />

MDID - MSE data interface device<br />

MDIS - medical diagnostic imaging support<br />

MDITS - migration defense intelligence threat data system<br />

MDR - medium data rate<br />

MDS - meteorological data system<br />

MDS - modular dissemination system<br />

MDT - medical detachment telemedicine<br />

MDT - message distribution terminal<br />

MDTG - multiplex digital transmission group<br />

MDZ - maritime defense zone<br />

MEADS - Medium Extended Range Air Defense System (European)<br />

MEB - memory expansion board<br />

MEB - Marine Expeditionary Brigade<br />

Mech - mechanized<br />

MED - Mediterranean<br />

MEDINT - Medical Intelligence<br />

MEDLL - multi-path estimation delay lock loop<br />

MEF - Marine Expeditionary Force<br />

MEL - monitor equipment line<br />

MELIOS - Mini Eyesafe Laser Infrared Observation Set<br />

MELP - Mixed Excitation Linear Prediction<br />

MEM - memory<br />

MEMS - micro-electro-mechanical systems<br />

Page 64 of 106

---

MEO - middle Earth orbit<br />

MEOV - MERS Emergency Operations Vehicle<br />

MERF - mobile enroute radar facility<br />

MERS - Mobile Emergency Response Support<br />

MES - Mobile Earth Station<br />

MESAR - microwave electronically scanned adaptive radar (UK)<br />

MESAR - multifunction electronically scanned adaptive radar<br />

MET - metafile<br />

MET - meteorology/meteorological<br />

MET - Multi-image Exploitation Tool<br />

METS - mobile electronic threat simulator<br />

METT-T - mission, enemy, terrain, troops, <strong>and</strong> time<br />

MEU - Marine Expeditionary Unit<br />

MEWSS - mobile electronic warfare support system<br />

MF - multiple (medium) frequency<br />

MF - management facility<br />

MF - multifrequency<br />

MFA - maneuver functional area<br />

MFBIT - Multi-Feature Bayesian Intelligent Tracker<br />

MFC - multinational force comm<strong>and</strong>er<br />

MFCS - material finance control system<br />

MFD - multi-functional display<br />

MFI - multifunction interpreter<br />

MFJ - modification of final judgment<br />

MFLOPS - million floating point operations per second<br />

MFLT - modified fast lapped transform<br />

MFLTU - Multifrequency Line Termination Unit<br />

MFM - modified frequency modulation<br />

MFOTS - military fiber optic transmission system<br />

MFP - multifunction peripheral<br />

MFPL - message format processing language<br />

MFS - multifunction service<br />

MFSK - multiple frequency-shift keying<br />

MFTDMA - multiple frequency time division, multiple access<br />

MFVRP - Mission Familiarization Virtual Reality Project<br />

MG - master group<br />

MGA - monochrome graphics adapter<br />

MGCP - Media Gateway Control Protocol<br />

MGE - modular GIS environment<br />

MGM - Master Group Multiplexer<br />

mgmt - management<br />

MGRS - military grid reference system<br />

MGS - mobile ground system<br />

MGS - medium grade security<br />

mgt - management<br />

MGV - mobile gateway van (Army)<br />

MGW - multimedia gateway<br />

Page 65 of 106<br />

MH - message h<strong>and</strong>ler<br />

MHF - medium high frequency<br />

MHS - message h<strong>and</strong>ling system<br />

MHz - MegaHertz<br />

MI - Message Indicator<br />

MI - military intelligence<br />

MI2S - Military Intelligence Investment Strategy<br />

MIB - Military Intelligence Board<br />

MIB - (Management Information Base) - The set of network<br />

elements, such as a nodes, cards, <strong>and</strong> links that can be managed<br />

by an SNMP manager. Each agent maintains a MIB that<br />

represents the manageable network elements at that node.<br />

MIC - medium interface connector<br />

MIC - microwave integrated circuit<br />

MIC - monolithic integrated circuit<br />

MIC - mutual interface chart<br />

MICFAC - Mobile Integrated Comm<strong>and</strong> Facility<br />

MIDAS - military intelligence decision aid system<br />

MIDAS - Multiplexer Integration <strong>and</strong> DCSS Automation System<br />

MIDB - Modernized Integrated (Intelligence) Data Base<br />

MIDI - musical instrument digital interface<br />

MIDS - military information distribution system<br />

MIDS - miniaturized interoperable data system<br />

MIDS - multifunctional information distribution system<br />

MIE - Military Information Environment<br />

MIES - modernized imagery exploitation system<br />

MIF - management information format<br />

MII - military information infrastructure (Army)<br />

MII - media interdependent interface<br />

MIIDS - military integrated intelligence data system<br />

MIJI - meaconing, intrusion, jamming, <strong>and</strong> interference<br />

MIL-SPEC - military specification<br />

MIL-STD - military st<strong>and</strong>ard<br />

MIL - military<br />

MILDEP - Military Department<br />

MILDEPS - Military departments Milstar Military Strategic <strong>and</strong><br />

Tactical Relay<br />

MILES - multiple integrated laser engagement system<br />

MILNET - Military Network<br />

MILOGS - Marine integrated logistic system<br />

MILSATCOM - military satellite communications<br />

MILSTAR - military strategic tactical <strong>and</strong> relay satellite<br />

communication<br />

MIMD - multiple instruction multiple data<br />

MIME - multipurpose Internet mail extensions<br />

MIN - mobile identification number<br />

min - minute(s)<br />

MINS - multisource integrated notification system<br />

MINTERM - miniaturized terminal

---

MINX - multimedia information network exchange<br />

MIP - medium interface point<br />

MIPE - mobile intelligence processing element<br />

MIPS - Marine integrated personnel system<br />

MIPS - million instructions per second<br />

MIQ - machine intelligence quotient<br />

MIRACL - mid-infrared advanced chemical laser<br />

MIRFS - multifunction integrated radio frequency system<br />

MIRMO - Medical Information Resources Management Office (VA)<br />

MIRS - miniaturized imagery receive system<br />

MIS - management information systems<br />

misc - miscellaneous<br />

MISSI - Multilevel Information System Security Initiative<br />

MIST - modular interoperable surface terminal<br />

MITLA - microcircuit technology in logistics applications<br />

MITT - Mobile Integrated Tactical Terminal<br />

MK - manual key(ing)<br />

MK - mark<br />

MK/RV - manual key receive variable<br />

MKV - Mobile Ku B<strong>and</strong> Vehicle<br />

ML - machine language<br />

ML - mail list<br />

MLA - mail list agent<br />

MLAPI - multilingual application programming interface<br />

MLID - multi-link interface driver<br />

MLM - Mail List Manager<br />

MLPC - multiple linear predictive coding<br />

MLPP - multilevel precedence <strong>and</strong> preemption<br />

MLS - microwave l<strong>and</strong>ing system<br />

MLS - multilevel security<br />

MLSWG - Multilevel Security Working Group<br />

MLTM - Maneuver Control System Layered Telecommunications<br />

Model<br />

MMC - matched memory cycle<br />

MMC - modular mission computer<br />

MMC - Microsoft Management Console<br />

MMC - Materiel Management Center<br />

MMCF - multimedia communications forum<br />

MMDS - multipoint multimedia distribution system<br />

MMEM - Micromemory<br />

MMI - man/machine interface<br />

MMIC - monolithic microwave integrated circuit<br />

MMIS - materials manager information system<br />

MML - mathematical markup language<br />

MMLS - mobile microwave l<strong>and</strong>ing system<br />

MMPM - multi media presentation manager<br />

MMS - maintenance mentoring system<br />

MMS - meteorological measuring system<br />

Page 66 of 106<br />

MMS - multimode seeker<br />

MMSA - multimission surveillance aircraft<br />

MMT - multimedia terminal<br />

MMTA - Multimedia Telecommunications Industry Association<br />

MMU - memory management unit<br />

MMW - millimeter wavelength<br />

MNP - master navigation plan<br />

MO - magneto optical<br />

MOA - memor<strong>and</strong>um of agreement<br />

MOC - Milstar operations center<br />

MOCC - Mobile Operations Control Center<br />

MOD - modulator<br />

Modem (modulator demodulator) - A type of DCE that converts<br />

digital data to an analog signal for transmission on telephone<br />

circuits. A modem at the receiving end converts the analog signal<br />

to digital form.<br />

MODIS - moderate resolution imaging spectro-radiometer<br />

Modulation - The process of varying some characteristics of the<br />

carrier wave in accordance with the instantaneous value or<br />

samples of the intelligence to be transmitted. Amplitude,<br />

frequency, <strong>and</strong> phase are the characteristics commonly varied.<br />

Module - A set of one or more cards that performs a single, logical<br />

function. A module usually consists of the front card <strong>and</strong> interface<br />

card (printed-circuit board assembly) that connect through the<br />

backplane on the shelf in a Promina 800, 400, <strong>and</strong> 200.<br />

Module Power Consumption - The total wattage (power) used by a<br />

module (combined front <strong>and</strong> rear interface card).<br />

MOE - measure of effectiveness<br />

MOE - mission operations element<br />

MOF - maximum observed frequency<br />

MOHLL - machine oriented high level language<br />

MOISE - Mission-Oriented Information System Engineering<br />

MOM - message-oriented middleware<br />

MOOTW - military operations other than war<br />

MOP - maintenance operations protocol<br />

MOPX - mobility planning <strong>and</strong> execution system<br />

MOS - military occupational specialty<br />

MOS - mean opinion score<br />

MOSPF - multicast open shortest path first<br />

MOSS - MIME object security services<br />

MOW - maintenance orderwire<br />

MP-MLQ - multipurpose-multilevel quantization<br />

MP - Military Police<br />

MPARES - Mission Planning <strong>and</strong> Rehearsal System<br />

MPAS - Measurement <strong>and</strong> Signature Intelligence Analysis<br />

MPE - multiprogramming executive<br />

MPE - mission planning element<br />

MPEG - Motion Pictures Experts Group<br />

MPH - miles per hour<br />

MPM - mission plan management<br />

MPN - multiprotocol network

---

MPOA - MultiProtocol Over ATM<br />

MPP - massively parallel processing<br />

MPPC - multipurpose parallel computing<br />

MPPE - Microsoft point-to-point encryption<br />

MPQS - multiple polynomial quadratic sieve<br />

MPR - multiport repeater<br />

MPRS - mission planning rehearsal systems<br />

MPS - mapping, chart <strong>and</strong> graphics production system<br />

MPS - multiprocessor specification<br />

MPS - Modular Power Supply<br />

MPT - Ministry of Posts <strong>and</strong> Telecommunications (Europe <strong>and</strong><br />

China)<br />

MPU - multiprocessor unit<br />

MPU/VDU - modem-only plug-in unit/voice processor-only unit<br />

MR - magneto-resistive<br />

MRAM - magnetic r<strong>and</strong>om access memory<br />

MRC - mobile radio communications<br />

MRC - major regional conflict<br />

MRCI - Modular Reconfigurable C4I Interface<br />

MRDBS - MASINT requirements data base system<br />

MRIM - Marine Rapid Information Management System<br />

MRM - magneto-resistive microscopy<br />

MROC - multicomm<strong>and</strong> required operational capability<br />

MRT - mobile radio telephone<br />

MRTBF - master range <strong>and</strong> test facility<br />

MRV - Machine Readable Visa<br />

MRV - multi-radio vehicle<br />

MRVC - multirate voice card<br />

MS - multispectral sensor<br />

MS - message switch<br />

ms - milliseconds<br />

MSAT - mobile satellite<br />

MSAU - multi-station access unit<br />

MSB - most significant bit<br />

MSC - mobile switching center<br />

MSC - major subordinate comm<strong>and</strong><br />

MSCA - Military Support for Civil Authorities<br />

MSCS - multi-service communications systems<br />

MSD - mass storage device<br />

MSD - medium screen display<br />

MSDR - multiplexed streaming data request<br />

MSE - mobile subscriber equipment<br />

MSE-NPT - mobile subscriber equipment nodal planning terminal<br />

Msec - milliseconds<br />

MSEP - multi-sensor electronic package<br />

MSEQ - Microsequencer<br />

MSEU - mass storage expansion unit<br />

MSF - multiplex signal format<br />

Page 67 of 106<br />

MSG - multifunction secure gateway<br />

MSG - message<br />

MSG - multifunction secure gateway<br />

MSGS - Multilevel Secure Gateway System<br />

MSI - multi-sensor integration<br />

MSIAC - Modeling <strong>and</strong> Simulation Information Analysis Center<br />

(DOD)<br />

MSIC - Missile <strong>and</strong> Space Intelligence Center<br />

MSIS - marine safety information system<br />

MSK - minimum-shift keying<br />

MSK - Message Signature Key<br />

MSL - master station log<br />

MSL - master support list<br />

MSL - maximum segment lifetime<br />

MSN Multiple Subscriber Number. This is a telephone number<br />

associated with an ETS 300 BRI line. Providers of ETS 300 often<br />

give you three MSNs with a BRI, although additional MSNs can<br />

be purchased. An ISDN terminal will "ring" (provide an alerting<br />

signal) only when calls are made to the MSN (or MSNs) entered<br />

in that terminal. If a terminal has no MSNs entered it will "ring"<br />

wheneverthere is a call to any of the MSN’s on that BRI. See ETS<br />

300 <strong>and</strong> Directory Number.<br />

MSNF - multisystem networking facility<br />

MSNK - message switch net key<br />

MSNV - message switch net variable<br />

MSP - Message Security Protocol<br />

MSR - minimum security requirements<br />

MSR - main supply route<br />

MSRC - Modular Software-programmable Radio Consortium<br />

MSRK - message switch rekey key<br />

MSRS - multi-role survivable radar<br />

MSRT - Mobile Subscriber Radio Terminal<br />

MSRV - message switch rekey variable<br />

MSS - metropolitan switching system<br />

MSS - mobile satellite services<br />

MSS - multiprotocol switched services<br />

MSS - mission support system<br />

MSS-IIE - Mission Support System II Enhanced<br />

MSS - maximum segment size<br />

MST - master<br />

MSU - Modular Switching Unit<br />

MT - medium terminal<br />

MTA - message transfer agent<br />

MTACCS - Marine tactical automated comm<strong>and</strong> <strong>and</strong> control system<br />

MTBF - (Mean Time Between Failures) - A stated or published<br />

period of time for which a user may reasonably expect a device to<br />

operate before an incapacitating failure occurs.<br />

MTBO - mean time between outages<br />

MTCC - modular tactical communications center<br />

MTD - marketing transaction database<br />

MTD - moving target detection

---

MTDBU - mean time between data unavailability<br />

MTDN - Marine Corps Tactical Data Network<br />

MTDS - Marine tactical data system<br />

MTF - message text format<br />

MTF - modulation transfer function<br />

MTG - Master Timing Generator<br />

MTI - moving target indicator<br />

MTI - Message Transfer Interface<br />

MTM - McLintock theater model<br />

MTMP - MACOM Telephone Modernization Program<br />

MTOPS - million composite theoretical operations per second<br />

MTRACS - multiple input tracking control system<br />

MTS - Marine tactical system<br />

MTS - message transfer system<br />

MTSO - mobile telephone switching office<br />

MTSR - mean-time-to-service-restoral<br />

MTT - magnetic tape transport<br />

MTTF - mean-time-to-failure<br />

MTTR - mean-time-to-repair<br />

MTU - (Maximum Transfer Unit) - An MTU is the largest frame length<br />

which may be sent on a physical medium.<br />

MTW - Major Theater War<br />

MTWS - Marine Tactical Warfare Simulation<br />

MTWSS - MAGTF tactical warfare simulation system<br />

Mu-Law - Mu-law is the comp<strong>and</strong>ing st<strong>and</strong>ard used in the analog-todigital<br />

conversion process (<strong>and</strong> vice-versa) in PCM systems,<br />

North American telephone networks.<br />

MUF - maximum usable frequency<br />

MUF - military unique features<br />

MUI - multimedia user interface<br />

Multidrop - A communications arrangement where multiple devices<br />

share a common transmission channel, although only one device<br />

may transmit at a time.<br />

Multijunction Unit (MJU) - Equipment at the customer's site that<br />

connect to a DSU to multipoint operation.<br />

Multiplexer - A device, also called a MUX that can transmit several<br />

messages or signals in a high-speed data stream on a single<br />

channel.<br />

Multiplexing Format - The N.E.T. multiplexing format used on the<br />

sync card to multiplex subrate data ports into the sync trunk DS0<br />

channels.<br />

Multiservice Access Platform - Intelligent T3/T1 multiplexers<br />

capable of complex switching <strong>and</strong> routing needed for backbone<br />

T3/T1 networks. A network system facility that connects with<br />

customer devices <strong>and</strong> T1/T3/E3 trunks. Physically, it may consist<br />

of several shelves. Logically, it is controlled by a single software<br />

supervisor, which may be distributed among several processors.<br />

MULTS - Mobile Universal Link Translator System (Navy)<br />

MUSE - multidimensional user-oriented synthetic environment<br />

MUSE - Multiple Sub-Nyquist Encoding<br />

MUSIC - multiple signal classification<br />

MUSTRS - multi-sensor target recognition system<br />

MUTES - multiple threat emitter simulator<br />

Page 68 of 106<br />

MUX - multiplexer<br />

mV - millivolts<br />

MVDM - multiple virtual DOS machines<br />

MVGA - monochrome video graphics array<br />

MVIP - Multivendor Integration Protocol<br />

MVP - multimedia video processor<br />

mvr - maneuver<br />

MVS - message validation system<br />

MVS - multiple virtual storage<br />

MVS - modular video studio<br />

MW - microwave<br />

mw - milliwatt<br />

MW - morale <strong>and</strong> welfare<br />

MWCS - Marine wing communications squadron<br />

MWI - message waiting indicator<br />

MWIS - Marine WWMCCS information system<br />

MWP - microwave processor<br />

MWS - missile warning set<br />

MWS - management workstation<br />

MWS-R - management workstation replacement<br />

MX/DMX - multiplexer/demultiplexer<br />

MYX - tactical area code<br />

N - not classified but sensitive<br />

N-ISDN - narrowb<strong>and</strong> ISDN<br />

N - nonsecure, negative, no<br />

N/A - not applicable<br />

N<br />

N6 - Space <strong>and</strong> Comm<strong>and</strong>, Control, Communications <strong>and</strong> Computer<br />

Systems Requirements (Navy)<br />

NAC - network adapter card<br />

NAC - NATO area code<br />

NAC - National Area Code<br />

NACD - National Association of Computer Dealers<br />

NACIC - National Counterintelligence Center<br />

NACISA - NATO Communications <strong>and</strong> Information Systems Agency<br />

NACISC - NATO Communications <strong>and</strong> Information Systems<br />

Committee<br />

NACK - Non-acknowledge<br />

NACMA - NATO Air Comm<strong>and</strong> <strong>and</strong> Control Management Agency<br />

NACMO - NATO Air Comm<strong>and</strong> <strong>and</strong> Control Management<br />

Organization<br />

NACOSA - NATO CIS Operating Systems Agency (was NICS COA)<br />

NACS - National Advisory Committee on Semiconductors<br />

NACSAM - National COMSEC Advisory Memor<strong>and</strong>um<br />

NACSEM - National COMSEC Emanations Memor<strong>and</strong>um

---

NACSI - National Communications Security Instruction<br />

NACSIM - National COMSEC Information Memor<strong>and</strong>um<br />

NADC - NATO air defence committee<br />

NADDIS - narcotics <strong>and</strong> dangerous drugs information system<br />

NADF - North American Directory Forum<br />

NADIN - National Airspace Data Interchange Network<br />

NADIR - Network Anomaly Detection Intrusion Reporter<br />

NAF - Numbered Air Force<br />

NAG - Network Address Group<br />

NAI - NATO Analog Interface<br />

NAIC - National Air Intelligence Center<br />

NAK - negative acknowledgment<br />

NALCOMIS - Naval Aviation Logistics Comm<strong>and</strong> Management<br />

System<br />

NALLA - NATO Allied Long-Lines Agency<br />

NAM - Network Assessment Model<br />

NAMPS - Narrowb<strong>and</strong> Advanced Mobile Phone Service<br />

NANOG - North American Network Operators Group (Internet)<br />

NANP - North American Numbering Plan<br />

NAOC - National Airborne Operations Center<br />

NAP - network access protocol (point)<br />

NARA - National Archives <strong>and</strong> Records Administration<br />

NARACS - national radio communications system<br />

NARSAP - National Advanced Remote Sensing Application Program<br />

NAS - Network Access System<br />

NAS - National Airspace System (FAA)<br />

NAS - network attached storage<br />

NAS - Numerical Aerodynamic Simulation (NASA)<br />

NASA - National Aeronautics <strong>and</strong> Space Administration<br />

NASCOM - NASA Operational Communications System<br />

NASD - network attached storage device<br />

NASIRE - National Association of State Information Resource<br />

Executives<br />

NASM - National Air <strong>and</strong> Space Model (USAF)<br />

NASNET - National Airspace System Network<br />

NAT - Network Address Translation<br />

National ISDN - The first US "st<strong>and</strong>ardized" multi-platform ISDN<br />

protocol. The first version is National ISDN-1. As of mid 1996<br />

National ISDN-2 has been implemented in some areas <strong>and</strong> is fully<br />

backward compatible with National ISDN-1.Ä<br />

Native Agent - An SNMP agent that resides on a Promina node <strong>and</strong><br />

responds to requests from an SNMP manager, such as the<br />

PanaVue Management Platform.<br />

NATO - North Atlantic Treaty Organization<br />

NATS - North American terrestrial system<br />

NAU - network addressable unit<br />

NAVCAMS - naval modular automated communications system<br />

NAVCIRP - Navy Computer Incident Response Team<br />

NAVCIRT - Navy Security Incident Response Team<br />

NAVCOMPARS - Navy Communications Processing <strong>and</strong> Routing<br />

System<br />

NAVFOR - Navy forces<br />

NAVGUARD - Navigation by GPS Utility with Anti-jam <strong>and</strong> RFI<br />

Direction Finding<br />

NAVMACS - Naval Modular Automated Communications System<br />

NAVMIC - Naval Maritime Intelligence Center<br />

NAVSATCOMFAC - Naval Satellite Communications Facility<br />

NAVSOF - Naval Special Operation Forces<br />

NAVSPEC - Naval Special<br />

NAVSTAR - navigational system timing <strong>and</strong> range<br />

NAVTACNET - Naval Tactical Network<br />

NAVTEX - worldwide navigational warning service<br />

NAVWAR - Navigation Warfare<br />

NAWAS - national warning system<br />

NB - narrowb<strong>and</strong><br />

NBC - nuclear, biological, chemical<br />

NBFM - narrow b<strong>and</strong> frequency modulation<br />

NBRVF - narrowb<strong>and</strong> radio voice frequency<br />

NBS - National Bureau of St<strong>and</strong>ards<br />

NBSV - narrowb<strong>and</strong> secure voice<br />

NC - Node Center<br />

NC - network computer<br />

NC3A - NATO Consultation, Comm<strong>and</strong> <strong>and</strong> Control Agency<br />

NCA - National Comm<strong>and</strong> Authorities<br />

NCA - network computing architecture<br />

NCA - network communications adapter<br />

NCC - National Coordinating Center<br />

NCC - network control circuit<br />

NCC-D - network control center-deployed<br />

NCC - (Network Control Center) - 1. Any centralized network<br />

diagnostic <strong>and</strong> management station or site, such as that of a<br />

packet-switching network. 2. (Network Control Code) - DDSdefined<br />

byte codes that are used to initiate loops <strong>and</strong> convey<br />

status information.<br />

NCCOSC - Naval Comm<strong>and</strong> Control <strong>and</strong> Ocean Surveillance Center<br />

NCCS - Naval Comm<strong>and</strong> <strong>and</strong> Control System-Ashore<br />

NCCS-A - Navy Comm<strong>and</strong> <strong>and</strong> Control System-Afloat<br />

NCCS - National Computer Crime Squad (FBI)<br />

NCCS - nodal control CS<br />

NCCS - Nodal Comm<strong>and</strong> <strong>and</strong> Control System<br />

NCD - net control device<br />

NCE - network control element<br />

NCF - network computing framework<br />

NCF - net control facility<br />

NCGA - National Computer Graphics Association<br />

NCI - network computing infrastructures<br />

NCIC - National Crime Information Center<br />

NCIC - Network Centric Innovation Center (Navy)<br />

NCIPB - National Counter Intelligence Policy Board<br />

Page 69 of 106

---

NCMD - Nine-Channel Multiplexer/Demultiplexer<br />

NCMSACS - Nodal Control Mobile Subscriber Access CS<br />

NCO - noncommissioned officer<br />

NCOIC - Noncommissioned Officer in Charge<br />

NCP - not copy protected<br />

NCP - Network Control Protocol<br />

NCP - (Network Control Point) - Network Control Point: A routing<br />

optimizer <strong>and</strong> network synchronization software process. Any<br />

node is a potential NCP, but the network can run without one.<br />

NCS - National Communications System<br />

NCS - National Cryptologic System<br />

NCS - net control station<br />

NCS - node center switch<br />

NCSA - National Center for Supercomputing Applications<br />

NCSA - National Computer Security Association<br />

NCSC - National Computer Security Center (Committee)<br />

NCSD - National Communications System Directive<br />

NCSL - National Computer Systems Laboratory<br />

NCT - network control terminal<br />

NCTA - National Cable Television Association<br />

NCTAMS - Naval Computer <strong>and</strong> Telecommunications Area Master<br />

Station<br />

NCTE - Network Channel Terminating Equipment. NCTE is a<br />

general term that can be applied to a CSU or NT1 or other<br />

equipment terminating a digital line at the customer°Øs<br />

premises. In many countries the NCTE is provided by the Telco.<br />

The USA is not one of those countries.<br />

NCTR - non-cooperative target recognition<br />

NCTSI - Naval Center for Tactical Systems Interoperability<br />

NCVT - noncooperative variable transfer<br />

NDAC - Network Design <strong>and</strong> Analysis Center (NCS)<br />

NDCS - network data control system<br />

NDF - network dynamic functionality<br />

NDI - non-developmental item(s)<br />

NDI - NATO digital interface<br />

NDIC - National Drug Intelligence Center<br />

NDIS - Network Device Interface Specification<br />

NDIS - network driver interface st<strong>and</strong>ard<br />

NDN - non-delivery notice<br />

NDP - National Defense Panel<br />

NDP - numeric data processor<br />

NDPS - national disclosure policy system<br />

NDR - negative differential resistance<br />

NEACP - National Emergency Airborne Comm<strong>and</strong> Post (See NAOC)<br />

NEF - Naval Expeditionary Forces<br />

neg - negative<br />

Neighbor Load - The process of loading code from a neighbor node<br />

(a node that is physically connected to the node).<br />

Neighbor Node - A node that is physically connected to another<br />

node.<br />

Page 70 of 106<br />

NEMIS - national emergency management information system<br />

(FEMA)<br />

NeMISIS - New Mexico intelligence sharing information system<br />

NEMS - national emergency management system<br />

NEO - noncombatant evacuation operation<br />

NEP - Network Entry Point<br />

NEP - noise equivalent power<br />

NES - network encryption system<br />

NES - noise equivalent signal<br />

NES - Network Encryption System<br />

NESDIS - national environmental satellite data <strong>and</strong> information<br />

service<br />

NESEA - Naval Electronics Systems Engineering Activity<br />

NESP - Navy Extremely high frequency Satellite Program<br />

NET - subnetwork<br />

NetBIOS - network Basic Input/Output System<br />

NETOPS - Network Operations<br />

NETPLAN - network planning<br />

NETS - Nationwide Emergency Telecommunications Service<br />

Netview - An IBM mainframe network management product that<br />

integrated the functions of several earlier IBM network<br />

management products.<br />

NETWARS - network warfare simulation<br />

Network - A circuit configuration of two or more nodes that<br />

interconnects links. A network can have up to 16,000 domains<br />

each consisting of up to 250 nodes connected in any topology<br />

(such as star, ring, <strong>and</strong> full-mesh).<br />

Network - Channel Terminating Equipment - See NCTE.<br />

Network Event Log - Contains events from nodes in the network<br />

that are tagged as being network significant, also contains all<br />

cleared alarms.<br />

Network Gateway Feature - A licensed feature that allows a node to<br />

be configured as a gateway node to gain access to other<br />

domains.<br />

Network Management - A systematic approach to planning,<br />

organizing, <strong>and</strong> controlling a communications network.<br />

Network Topology - The physical <strong>and</strong> logical relationship of nodes<br />

in a network; the schematic arrangement of the links <strong>and</strong> nodes of<br />

a network. Networks are typically of either a star, ring, tree, or bus<br />

topology, or some hybrid combination thereof.<br />

NEXRAD - next generation weather radar<br />

NEXT - near-end crosstalk<br />

NFC - Numbered Fleet Comm<strong>and</strong>er<br />

NFD - nodal fault diagnostics<br />

NFIB - National Foreign Intelligence Board<br />

NFIP - National Foreign Intelligence Program<br />

NFS - number field sieve<br />

NFS - (Network File System) - NFS is a networking protocol that<br />

allows a computer system to access files over a network as if they<br />

were on its local disks.<br />

NG - National Guard<br />

NGCR - next generation computer resources<br />

NGI - Next Generation Internet<br />

NGIC - National Ground Intelligence Center

---

NGSO - Nongeosynchronous orbit<br />

NGW - (Neighbor Gateway) - A gateway node in another domain that<br />

physically connects to the gateway node in this domain.<br />

NI - national identifier<br />

NI - NATO interface<br />

NI - (Network Interface) - The point between the carrier's network<br />

<strong>and</strong> the customer's installation.<br />

NIAC - national identifier-area code<br />

NIAG - National Infrastructure Assurance Council<br />

NIAP - National Information Assurance Partnership<br />

NIBRS - National Incident Based Reporting System<br />

NIC - National Intelligence Council<br />

NIC - network interface card<br />

NIC - Network Information Center<br />

NICS - NATO integrated communications system<br />

NID - network interface (intrusion) device<br />

NID - network inward dialing<br />

NIDL - National Information Display Laboratory<br />

NIDR - networked information discovery <strong>and</strong> retrieval<br />

NIDS - network intrusion detection system<br />

NIE - National Intelligence Estimate<br />

NII - National Information Infrastructure<br />

NIIMS - Nuclear Integration Information Management System<br />

NIIRS - National Imagery Information Resolution St<strong>and</strong>ards<br />

NIIT - National Information Infrastructure Testbed<br />

NILTU - NATO Interface Line Termination Unit<br />

NIMA - National Imagery <strong>and</strong> Mapping Agency<br />

NIMS - National Airspace System Infrastructure Management<br />

System<br />

NINEWS - Navy Integrated Electronic Warfare System<br />

NIO - National Intelligence Officers<br />

NIOD - network inward/outward dialing<br />

NIP - Network Implementation Plan<br />

NIPC - National Infrastructure Protection Center<br />

NIPR - Sensitive but Unclassified Internet Protocol Router<br />

NIPRNET - Nonsecure Internet Protocol Router Network<br />

NIPS - Naval intelligence processing system<br />

NIR - network information retrieval<br />

NIS - NMCS information system<br />

NIS - non-imaging sensor<br />

NISMC - Naval Information Systems Management Center<br />

NISO - National Information St<strong>and</strong>ards Organization<br />

NIST - National Institute for St<strong>and</strong>ards <strong>and</strong> Technology<br />

NIT - network interface tap<br />

NITAAC - National Information Technology Acquisition <strong>and</strong><br />

Assessment Center<br />

NITB - National INFOSEC Technical Baseline<br />

NITC - National Information Technology Center<br />

NITF - national imagery transmission format<br />

Page 71 of 106<br />

NITFS - national imagery transmission format st<strong>and</strong>ard<br />

NIU - network interface unit<br />

NIU - NATO interface unit<br />

NIUF - National ISDN User’s Forum. A user’s group formed under<br />

the National Institute of Technology (NIST) in the USA. The NIUF<br />

is a neutral forum where the switch manufacturers <strong>and</strong> Telcos can<br />

get input from users <strong>and</strong> CPE manufacturers regarding the<br />

implementation of National ISDN. Among NIUF’s successful<br />

projects have been the IOC ordering codes. Their web page is at<br />

http://www.niuf.nist.gov/ . See National ISDN.<br />

NIWA - Naval Information Warfare Activity<br />

NLA - non-linear amplifier<br />

NLECTC - National Law Enforcement <strong>and</strong> Corrections Technology<br />

Center<br />

NLETS - National Law Enforcement Telecommunications System<br />

NLM - network loadable module<br />

NLOC - noncommented lines of code<br />

NLP - national level NSEP telecommunications program<br />

NLS - national language support<br />

NLSP - network layer security protocol<br />

NLU - natural language underst<strong>and</strong>ing<br />

nm - nautical mile<br />

NM - Network Module<br />

NMAC - Network Management Analysis Center<br />

NMC - network management center<br />

NMCC - National Military Comm<strong>and</strong> Center<br />

NMCS - National Military Comm<strong>and</strong> System<br />

NMD - national missile defense<br />

NMF - Network Management Forum<br />

NMF - network management facility<br />

NMF - node management facility<br />

NMIA - National Military Intelligence Association<br />

NMICC - National Military Intelligence Collection Center<br />

NMIPC - National Military Intelligence Production Center<br />

NMISC - National Military Intelligence Support Center<br />

NMIST - National Military Intelligence Support Team<br />

NMJIC - National Military Joint Intelligence Center<br />

NMOC - Network Management Operations Center<br />

NMS - nodal management server<br />

NMS - (Network Management System) - 1. Network system<br />

applications that support real-time, ongoing monitoring of network<br />

performance, problem isolation, <strong>and</strong> network maintenance <strong>and</strong><br />

administration. 2. nodal management server<br />

NMT - network management terminal<br />

NMT - nodal mesh terminal<br />

NMVT - network management vector tables<br />

NNI - network to network interface<br />

NNI - network mode interface<br />

NNM - nodal network manager<br />

NNT - nonnodal terminal<br />

NNTP - Network News Transfer Protocol

---

NNX - format for a switch code, 3/4 numbering plan<br />

NNX+XXXX - NOSC Network Operations Security Center<br />

NNXX - format for a switch code, 4/3 numbering plan<br />

NO - number<br />

NOAA - National Oceanic <strong>and</strong> Atmospheric Administration<br />

NOAO - National Optical Astronomy Observatories<br />

NOAVA - Nationwide Office Automation for the VA<br />

NOC-V - Network Operations Center Vehicular<br />

NOC-C - Network Operations Center-CONUS<br />

NOC - Network Operations Center<br />

NOD - network outward dialing<br />

NODC - National Oceanographic Data Center (NOAA)<br />

Node - A Promina or an IDNX system that connects with customer<br />

devices <strong>and</strong> T1/T3/E3 trunks. Nodes are configured to meet<br />

individual network requirements.<br />

Node ID - Nodes are identified through the Operator Interface by a<br />

number from 1 to 250 preceded by an N (for example, N5). Node<br />

IDs are assigned during the node installation process.<br />

Node Name - An alphanumeric name of up to eight characters.<br />

Node Parameters - See parameters.<br />

NOFORN - Not Releasable to Foreign Nationals<br />

NOIC - naval operational intelligence center<br />

Noise - R<strong>and</strong>om electrical signals, introduced by circuit components<br />

or natural disturbances, which tend to generate errors.<br />

non-ICOM - non-integrated COMSEC<br />

Non-subrated - See subrated.<br />

Nonlatching Loopback - A (relatively) simple method of<br />

implementing network loop-in. A nonlatching loopback is initiated<br />

when four consecutive bytes of the specified loopback code are<br />

received, remains in place as long as every other byte contains<br />

the loopback code, <strong>and</strong> continues for a minimum of four bytes<br />

after receipt of the last loopback code. Also see latching<br />

loopback.<br />

NOP - no operation<br />

NORAD - North American Aerospace Defense Comm<strong>and</strong><br />

NORM - normal<br />

Nortel - Northern Telecom (previously Northern Electric). The<br />

Canadian company which was once the manufacturing arm of<br />

Bell Canada. Manufacturer of the DMS-100 switch as well as<br />

many other pieces of telecom equipment.<br />

Northern Telecom - See Nortel.<br />

NOS - network operating system<br />

NOSC - Naval Ocean Systems (Surveillance) Center<br />

NOSC - Network Operations <strong>and</strong> Security Center (USAF)<br />

NOSC-D - Network Operations <strong>and</strong> Security Center-Deployed<br />

NPA - numbering plan area<br />

NPA - numbering plan access<br />

NPACI - National Partnership for Advanced Computational<br />

Infrastructure<br />

NPCS - narrowb<strong>and</strong> PCS<br />

NPDB - National Practitioner Data Bank<br />

NPDS - NMCC processing <strong>and</strong> display system<br />

NPE - network planning engineering<br />

Page 72 of 106<br />

NPI - network printer interface<br />

NPIC - National Photographic Interpretation Center<br />

NPOESS - National Polar-Orbiting Operational Environmental<br />

Satellite System<br />

NPS - NES product server<br />

NPT - Non-Proliferation Treaty<br />

NPT - network planning tool<br />

NPTN - National Public Telecomputing Network<br />

NPU - natural processing unit<br />

NPX - numeric processor extension<br />

NR/C - nonredundant-communications security capable<br />

NR/NC - nonredundant-not communications security capable<br />

NRC - Network Reliability Council (FCC)<br />

NREN - National Research <strong>and</strong> Educational (education) Network<br />

NRI - net radio interface<br />

NRIC - Network Reliability <strong>and</strong> Interoperability Council (FCC)<br />

NRIS - network resource information system<br />

NRM - network resource manager<br />

NRO - National Reconnaissance Office<br />

NRP - Net Radio Protocol<br />

NRSC - Network Reliability Steering Committee<br />

NRZ - Non-Return to Zero<br />

NS - nanosecond<br />

NS - Network Server<br />

NS - name server<br />

NS - nonsecure<br />

NS - node switch<br />

NS/EP/PS - national security, emergency preparedness, <strong>and</strong> public<br />

safety<br />

NS3 - NATO supplement-3<br />

NSA - National Security Agency<br />

NSAD - network security architecture <strong>and</strong> design<br />

NSAP - network service access point<br />

NSAS - noncommunications signals exploration system<br />

NSB - NATO signaling buffer<br />

NSCF - Naval satellite communications facility<br />

NSD - network security directive<br />

NSDD - National Security Decision Directive<br />

NSDI - National Spatial Data Infrastructure<br />

NSDU - network service data unit<br />

NSF - National Science Foundation<br />

NSF - national st<strong>and</strong>ard format<br />

NSFNET - National Science Foundation Network<br />

NSG - Naval Security Group<br />

NSG - node switching group<br />

NSI - national security information<br />

NSI - NASA Science Internet<br />

NSIE - Network Security Information Exchange

---

NSIPS - Naval st<strong>and</strong>ard integrated personnel system<br />

NSIRC - National Security Incident Response Center<br />

NSISIP - National Security Information Systems Incident Program<br />

NSLDS - National Student Loan Data System<br />

NSM - network <strong>and</strong> systems management<br />

NSM - network security management<br />

NSN - national stock number<br />

NSO - network security officer<br />

NSOC - National Security Operations Center (NSA)<br />

NSP - network service provider<br />

NSSOG - National Security St<strong>and</strong>ards Oversight Group<br />

NST - Navy st<strong>and</strong>ard teleprinter<br />

NSTAC - National Security Telecommunications Advisory Committee<br />

NSTISSAM - National Security Telecommunications <strong>and</strong> Information<br />

Systems Security Advisory Memor<strong>and</strong>um<br />

NSTISSC - National Security Telecommunications <strong>and</strong> Information<br />

Systems Security Committee<br />

NSTISSI - National Security Telecommunications <strong>and</strong> Information<br />

Systems Security Instruction<br />

NSTISSP - National Security Telecommunications <strong>and</strong> Information<br />

Systems Security Policy<br />

NSTL - National Software Testing Labs<br />

NSW - nonsecure warning<br />

NSWS - naval special warfare system<br />

NSWT - nonsecure warning tone<br />

NSWTG - Naval special warfare task group<br />

NT - network termination (terminal)<br />

NT - network terminal<br />

NT - network technology<br />

NT - new technology (Microsoft)<br />

NT - nodal terminal<br />

NT1 - "Network Termination Type 1". The termination at the<br />

customer premises of an ISDN BRI circuit. The NT1 performs the<br />

role of line termination of the "U" interface <strong>and</strong> Code/Decodes<br />

from the line's 2B1Q coding scheme. The customer end of the<br />

NT1 interfaces using the "S" or "T" interface. The NT1 is<br />

frequently part of the "Terminal Adapter".<br />

NTC - network terminal computer<br />

NTCB - network trusted computing base<br />

NTCN - National Telecommunications Coordinating Network<br />

NTCS-A - Naval Tactical Comm<strong>and</strong> System-Afloat<br />

NTCSS - Naval Tactical Comm<strong>and</strong> Support System<br />

NTDR - Near Term Digital Radio<br />

NTDS - Navy tactical data system<br />

NTF - National Test Facility<br />

NTIA - National Telecommunications <strong>and</strong> Information Administration<br />

NTIS - National Technical Information Service<br />

NTISA - Naval Tactical Interoperability Support Agency<br />

NTMA - national telecommunications management architecture<br />

NTMS - National Telecommunications Management System<br />

NTON - National Transparent Optical Network<br />

NTOPS - New Technology for Open <strong>and</strong> Portable Systems (Navy)<br />

NTP - Network Time Protocol<br />

NTP - Naval Telecommunications publication<br />

NTR - net time reference<br />

NTSC - National Television St<strong>and</strong>ards Committee<br />

NTSDS - National Target/Threat Signatures Data System<br />

NTTC - National Technology Transfer Center<br />

NTTN - national technical transfer network<br />

NUCINT - Nuclear Intelligence<br />

NUI - network user identification (interface)<br />

NVIS - near vertical incidence sky wave<br />

NVM - non-volatile memory<br />

NVOD - near video on dem<strong>and</strong><br />

NVS - Non-Volatile Storage<br />

NVT - network virtual terminal<br />

NWARS - national wargaming system<br />

NWCW - Network Centric Warfare (Navy)<br />

NWDC - Naval Warfare Development Comm<strong>and</strong><br />

NWI - Navy Worldwide Intranet<br />

NWIS - Navy WWMCCS Information System<br />

NWR - NOAA weather radio<br />

NWS - national weather service<br />

NWT - Normal wideb<strong>and</strong> terminal<br />

NWTDB - Naval Warfare Tactical Data Base<br />

NXTK Trunk Module - This module uses the X.21 st<strong>and</strong>ard for its<br />

interface <strong>and</strong> operates at 1.92 Mbps data rate.<br />

NXX - switch code (commercial plan)<br />

NYX - area code (commercial <strong>and</strong> DCS)<br />

O<br />

O&M - Operations <strong>and</strong> maintenance<br />

O&P - Outsourcing <strong>and</strong> Privitization<br />

O/R - originator/recipient<br />

O/W - orderwire<br />

OAA - Open Agent Architecture<br />

OAI - Open Applications Interface<br />

OAN - Operational Area Network<br />

OAS - other automatic switch<br />

OASD - Office of the Assistant Secretary of Defense<br />

OATS - Office Automation Technology <strong>and</strong> Services<br />

NTISSAM - National Telecommunications <strong>and</strong> Information Systems<br />

OATV - open architecture television<br />

Security Advisory Memor<strong>and</strong>um<br />

OBATS - off-board augmented theater surveillance<br />

NTISSC - National Telecommunications <strong>and</strong> Information Systems<br />

Security Committee<br />

OBEWS - On Board Electronic Warfare Simulator<br />

Page 73 of 106

---

obj - object<br />

Object Menu - The Operator Interface Object Menu contains the<br />

available items on which actions are performed such as ports,<br />

cards, nodes, call summary, network, etc.<br />

Objects - Refers to items in the Operator Interface such as nodes,<br />

links, cards, ports, <strong>and</strong> so on.<br />

OC - optical carrier<br />

OCA - object content architecture<br />

OCC - other common carrier<br />

OCD - orderwire clock distributor<br />

OCE - open collaboration environment<br />

OCI - offensive counterinformation (USAF)<br />

OCL - operation (operator) control language<br />

OCONUS - outside continental United States<br />

OCP - operational configuration processing<br />

OCR - optical character recognition (reader)<br />

OCS - open control system<br />

OCSP - Online Certificate Status Protocol<br />

OCU - Orderwire Control Unit<br />

OCU-I - Orderwire Control Unit I<br />

OCU-II - Orderwire Control Unit II<br />

ODA - office document architecture<br />

ODAPS - oceanic display <strong>and</strong> planning system (FAA)<br />

ODBC - open database connectivity<br />

ODBMS - object-oriented database management system<br />

ODI - open data-link interface<br />

ODIF - office (open) document interchange format<br />

ODIN - operational digital network<br />

ODIT - optical digital imaging technology<br />

ODL - Oceanic Data Link (FAA)<br />

ODL - office document language<br />

ODM - On Dem<strong>and</strong> Mode<br />

ODMA - open document management<br />

ODMG - open document management group<br />

ODS - ODS Networks Incorporated<br />

OEM - (Original Equipment Manufacturer) - The maker of equipment<br />

that is marketed by another vendor, usually under the name of the<br />

reseller. The OEM may manufacture certain components, or<br />

complete devices, which are then often configured with software<br />

<strong>and</strong>/or other hardware by the reseller.<br />

OEMI - original equipment manufacturer interface<br />

OFC - optical fiber, conductive<br />

Off-net Calls - All calls that are not destined for the backbone<br />

network. On st<strong>and</strong>ard trunks (other than 56K/64K trunks), calls<br />

take up only the b<strong>and</strong>width required for the call itself. These<br />

features allow the HDVC to increase the number of voice calls<br />

that can be sent <strong>and</strong> received on trunks by compressing<br />

b<strong>and</strong>width. The HDVC module can be used for international<br />

applications, because it can convert between Mu-Law <strong>and</strong> A-Law<br />

st<strong>and</strong>ards.<br />

Office Channel Unit (OCU) - The DDS module in the Central Office<br />

that connects with customer equipment (CSU). It formats<br />

customer data into synchronous DS0B-formatted 8-bit bytes <strong>and</strong><br />

multiplexes them into a 64 kbps signal. This DS0 is then<br />

Page 74 of 106<br />

multiplexed into the DS1 signal. The OCU provides test access to<br />

the bipolar 64 kbps-formatted signal <strong>and</strong> responds to OCU<br />

loopback requests.<br />

Officer - ANDVT advanced narrowb<strong>and</strong> digital voice terminal<br />

OFN - optical fiber, nonconductive<br />

OFS - output field separator<br />

OGIS - Open Geodata Interoperability Specification<br />

OH - overhead<br />

OIC - Officer in Charge<br />

OICC - Operations Intelligence Crisis Center<br />

OIDL - object interface definition language<br />

OIS - office information systems<br />

OIS - Office of Information Security (GSA/FTS)<br />

OIU - operation interface unit<br />

OIW - Offensive Information Warfare<br />

OLAP - on-line analytical processing<br />

OLCP - online complex processing<br />

OLD - online tests <strong>and</strong> diagnostics<br />

OLE - object linking <strong>and</strong> embedding<br />

OLED - Organic Light-emitting Diode<br />

OLMC - output logic macrocell<br />

OLS - optical line system<br />

OLTP - on-line transaction processing<br />

OM - object manager<br />

OMF - open message format<br />

OMFTS - Operational Maneuver from the sea<br />

OMG - Object Management Group<br />

OMNCS - Office of the Manager, National Communications System<br />

OMNIP - open management interoperability points<br />

OMNS - open network management system<br />

OMO - other military operations (was OOTW)<br />

OMPS - outboard mission planning system<br />

OMR - optical mark recognition<br />

OMT - orthogonal mode transducer<br />

On-net - Calls - All calls that are destined for the backbone network.<br />

ONA - open network architecture<br />

ONC - open network computing<br />

ONC - Operational Navigation Charts<br />

Ones - Density - See pulse density <strong>and</strong> zero suppression.<br />

ONI - Office of Naval Intelligence<br />

ONRAMP - Optical Networking for Regional Access with<br />

ONU - optical network unit<br />

OO - object oriented<br />

OO - output only<br />

OOA - object oriented analysis<br />

OOB - out of b<strong>and</strong><br />

OOD - object orientated design<br />

OODA - observe, orient, decide <strong>and</strong> act

---

OODB - object-oriented database<br />

OODMS - object-oriented database management system<br />

OOL - object-oriented language<br />

OOP - object oriented programming<br />

OOPL - object-oriented programming language<br />

OOS - object-oriented systems<br />

OOS - Out of Service<br />

OOS - out of sync<br />

OOT - object-oriented technology<br />

OOTW - operations other than war<br />

OOTW - operations other than war<br />

OOUI - object oriented user interface<br />

OP - operations post<br />

OP - operate<br />

OPC - optical photoconductor<br />

OPC - optical proximity correction<br />

OPCON - operational control<br />

OPE - operational planning element<br />

Operator - The person who uses the Operator Interface to manage<br />

the network. There are six levels of operators, each with different<br />

levels of access to the Operator Interface. The operator is<br />

identified by an operator ID of up to eight alphanumeric<br />

characters.<br />

Operator Console - The terminal used to communicate with the<br />

Operator Interface on the node. Physically connected to the RS-<br />

232C interface of the processor module.<br />

Operator ID - Operators are identified in the Operator Interface by a<br />

name up to eight alphanumeric characters. The operator name is<br />

used to log into the Operator Interface <strong>and</strong> has session<br />

parameters associated with it through the operator profile.<br />

Operator Interface - A menu/query system consisting of four levels:<br />

(1) Prolog Procedure menu, (2) Functional Area menu, (3) Action<br />

menus, <strong>and</strong> (4) Object menus.<br />

Operator Profile - A file containing the default session parameters<br />

associated with a specific Operator ID <strong>and</strong> stored in the<br />

configuration database. If an operator profile is not updated,<br />

changes to the session parameters will be in effect only during the<br />

current session. Upon updating an operator profile, the session<br />

parameters will be in effect during subsequent sessions under the<br />

same operator name.<br />

OPG - operator equipment group<br />

OPINTEL - Operational Intelligence<br />

OPLAN - operation plan<br />

OPNET - Operational Network Evaluation Tool<br />

OPORD - operation order<br />

OPP - orderwire patch panel<br />

OPR - office of primary responsibility<br />

OPREP - operations status report<br />

OPS - operations<br />

OPSCOMM - operations communications<br />

OPSEC - operations security<br />

OPT - Office of Priority Telecommunications (NCS)<br />

OPT - open protocol technology<br />

OPTADS - operations tactical data systems<br />

Page 75 of 106<br />

Optimal Path - The route between origination <strong>and</strong> destination ports<br />

that meets routing requirements <strong>and</strong> has the least link cost.<br />

OPTINT - optical intelligence<br />

OPU - outstation processing unit<br />

OPX - off-premises extension<br />

OQPSK - offset quadriphase shift keying<br />

ORA - Organization Registration Authorities<br />

ORAR - originator requested alternate recipient<br />

ORASIS - optical real-time adaptive signature identification system<br />

ORB - object request broker<br />

ORD - operational requirements document<br />

ORR - operational readiness report<br />

ORS - output record separator<br />

OS - operating system<br />

OSA - open system architecture<br />

OSAR - originator specified alternate recipient<br />

OSAT - out-of-service analog test<br />

OSC - operating system control<br />

Oscillator - An electronic device used to produce repeating signals<br />

of a given frequency <strong>and</strong> amplitude.<br />

OSD - Ofiice of the Secretary of Defense<br />

OSDS - Oceanic Systems Development <strong>and</strong> Support<br />

OSE - open system environment<br />

OSF - Open Software Foundation<br />

OSI-RM - opn system interconnection-reference model<br />

OSI - (Open System Interconnect) Model - A 7-layer reference model<br />

jointly developed by ISO <strong>and</strong> CCITT <strong>and</strong> designed to st<strong>and</strong>ardize<br />

procedures <strong>and</strong> protocols for data communication exchanges<br />

between computers, networks, <strong>and</strong> applications that are open to<br />

other systems, networks, <strong>and</strong> devices by means of their mutual<br />

use of the appropriate OSI procedures <strong>and</strong> protocols.<br />

OSI - operational subsystem interface<br />

OSINT - open source intelligence (also OSCINT)<br />

OSIS - open source information system<br />

OSIS - operating system independent server<br />

OSM - operating-system service module<br />

OSP - optical storage processor<br />

OSPF - open shortest path first<br />

OSPG - operation support group prototype<br />

OSQL - object structured query language<br />

OSRI - originating stations routing indicator<br />

OSS - on-line schedule system<br />

OSS - operational (operations) support system<br />

OSSN - originating stations serial number<br />

OSTP - Office of Science Technology <strong>and</strong> Policy<br />

OT - object technology<br />

OTA - Office of Technology Assessment<br />

OTA - operational test agent<br />

OTAD - over-the-air-key distribution<br />

OTAM - over-the-air-management

---

OTAR - over the air rekeying<br />

OTAT - over-the-air key transfer<br />

OTAU - over-the-air-update<br />

OTC - Officer in Tactical Comm<strong>and</strong><br />

OTCIXS - Officer in Tactical Comm<strong>and</strong> information exchange system<br />

OTH-B - over-the-horizon backscatter<br />

OTI - Office of Technical Integration<br />

OTM - object transaction monitor<br />

OTM - Office of Telecommunication Management<br />

OTP - one-time programmable<br />

OW - Orderwire<br />

OWC - Operational Watch Comm<strong>and</strong>er<br />

P<br />

P-SRAM - pseudo-static r<strong>and</strong>om access memory<br />

P-MUX - Promina multiplexer<br />

P-Bus - On a Promina 800, h<strong>and</strong>les module <strong>and</strong> system control <strong>and</strong><br />

provides for communication between cards (similar to the CBus).<br />

P-MUX - Promina multiplexer<br />

P - Priority<br />

p-p - peak-to-peak<br />

P - positive<br />

P - DN page down<br />

P - UP page up<br />

P/N - part number<br />

P/O - part of<br />

P/P - patch panel<br />

P3 - preplanning package<br />

P3I - preplanned product improvement<br />

PA - Privacy Act/power amplifier when used in radio configurations<br />

PA - public announce<br />

PA - parent relay<br />

PAA - policy approving authorities<br />

PAB - personal address book<br />

PABX - private area branch exchange<br />

PABX - private automatic branch exchange<br />

PAC - privilege attribute certificate<br />

PAC - Pacific<br />

PAC - Personnel <strong>and</strong> Administrative Center<br />

PACA - Priority Access <strong>and</strong> Channel Assignment<br />

PACAF - Pacific Air Forces<br />

PACCS - post-attack comm<strong>and</strong> <strong>and</strong> control system<br />

PACI - partnership for advanced computational infrastructure<br />

Packet - A sequence of data, with associated control information,<br />

that is switched <strong>and</strong> transmitted as a whole; refers mainly to the<br />

field structure <strong>and</strong> format defined within the CCITT X.25<br />

recommendation. A short block of data prefixed with addressing<br />

Page 76 of 106<br />

<strong>and</strong> other control information <strong>and</strong> carried between nodes. There<br />

are two general packet categories: datagram packets (DGP) <strong>and</strong><br />

virtual circuit packets.<br />

Packet Switching - A data transmission technique whereby user<br />

information is segmented <strong>and</strong> routed in discrete data envelopes<br />

called packets, each with its own appended control information for<br />

routing, sequencing, <strong>and</strong> error checking.<br />

Packetized - Voice - Digitized voice technology that lends itself to T1<br />

<strong>and</strong> ISDN applications.<br />

PACMERS - Pacific mobile emergency radio system<br />

PACS - picture archiving <strong>and</strong> communication system<br />

PAD - packet assembler disassembler<br />

PAIDS - Pacific area imagery distribution system<br />

PAL - phase-alternation line<br />

PAL - process asset library<br />

PAL - programmable array logic<br />

PAL - Preaffiliation List<br />

PAM - (Pulse Amplitude Modulation) - A modulation scheme wherein<br />

the modulating waveshape is caused to modulate the amplitude<br />

of a pulse stream.<br />

PAMA - pulse-address multiple access<br />

PAMS - patent automated management system<br />

PAN - personal area network<br />

PanaVue - The PanaVue Management Platform is a set of SNMPbased<br />

network management tools that monitor <strong>and</strong> manage<br />

networks composed of N.E.T. equipment including Promina 800<br />

Series <strong>and</strong> IDNX nodes, Promina 2000 ATM Network<br />

Multiplexers, <strong>and</strong> Promina 4000 ATM Switches.<br />

PanaVue NMS - See PanaVue.<br />

PAP - passwork authentication protocol<br />

para - paragraph<br />

Parallel - Data - The transfer of data simultaneously over two or<br />

more wires or transmission links.<br />

Parameters - Any of the allowable, programmable states that can be<br />

configured by the user are defined through the software on a per<br />

node, card, or port basis. These states consist of fields that are<br />

selectable during configuration <strong>and</strong> are usually described within<br />

an online menu.<br />

Partition - A feature used to group nodes <strong>and</strong> limit the access<br />

operators have to the group of nodes.<br />

PAS - Priority Access Service<br />

PASCAL - programming language named for Blaise Pascal<br />

Pass-through - In this mode, a data circuit is clocked at the<br />

frequency of the connected device, timing while the node<br />

operates at a different frequency. The circuit is passed through<br />

the node without data loss due to frequency slippage. This mode<br />

is useful when a node is connected to two different carrier<br />

services, for example Dataphone Digital Services (DDS) <strong>and</strong> MCI.<br />

Pass-through timing is available on the USD module.<br />

PAT - process action team<br />

PAT - Patriot<br />

Path - Path is the route a call takes through the nodes to reach its<br />

destination. Also see optimal path.<br />

PATRIOT - Phased Array Tracking to Intercept of Target<br />

PAVE - PAWS submarine launched ballistic missile phased array<br />

radar system<br />

PAWS - protection against wrapped sequence numbers

---

Payload - The 192 bits of information in a DS1 frame.<br />

PBOOK - phone book<br />

PBX - Private Branch Exchange: A privately owned switch. Basically<br />

a PBX is a private "business" telephone system which also<br />

interfaces to the telephone network. Many PBX's can now offer<br />

ISDN BRI service, usually over the S Interface. A few vendors are<br />

now offering BRI over the U interface as well. Be wary of these<br />

ISDN protocols since they have not been as well tested. They<br />

may or may not work with a given piece of CPE.<br />

PBX/Channel Bank Interface Module - This module links a node<br />

<strong>and</strong> a channel bank or a PBX. It accepts two T1 lines, each<br />

containing 24 voice channels in the st<strong>and</strong>ard D3 frame format.<br />

PBXM - Private Branch Exchange Module<br />

PBXM - Private Branch Exchange Module<br />

PC - personal computer<br />

PC - printed circuit<br />

PC - program counter<br />

PCA - policy certification authority<br />

PCA - policy creation authority<br />

PCA - printed card assembly<br />

PCB - program control block<br />

PCB - printed circuit board<br />

PCCIP - President’s Commission on Critical Infrastructure Projection<br />

PCE - Programmable Crypto Engine<br />

PCERT - Purdue Computer Emergency Response Team<br />

PCI - peripheral component interconnect<br />

PCIS - portable common interface set<br />

PCL - process control language<br />

PCL - preprogrammed conference list<br />

PCM - plug compatible module<br />

PCM - (Pulse Code Modulation) - The process of converting an<br />

analog signal to a digital signal or a digital signal to an analog<br />

signal.<br />

PCMCIA - Personal Computer Memory Card Interface Association<br />

PCMCIA - People Can’t Memorize Computer Industry <strong>Acronyms</strong><br />

PCMIM - personal computer media interface module<br />

PCMM - People Capability Maturity Model<br />

PCN - personal communications network<br />

PCN - personal computer network<br />

PCNFS - personal computer network file system<br />

PCR - peak cell rate<br />

PCS - personal communications systems (services)<br />

PCS - process control systems<br />

PCS - personal conferencing specification<br />

PCS - Program Counter Store<br />

PCS - Processor-Controlled Strapping<br />

PCSR - parallel channels signaling rate<br />

PCT - picture (file name extension)<br />

PCTE - portable common tool(s) environment<br />

PCTSS - provisioning, cataloging, <strong>and</strong> technical support system<br />

PCU - portable computer unit<br />

Page 77 of 106<br />

PCX - picture image (file name extension)<br />

PD - public domain<br />

PDA - personal digital assistant<br />

PDC - primary domain controller<br />

PDC - program designator code<br />

PDD - physical device driver<br />

PDENS - projected energy neutralization system<br />

PDES - product data exchange (using STEP)<br />

PDF - portable document format<br />

PDIA - process-driven information automation<br />

PDL - page description language<br />

PDL - program design language<br />

PDM - product data management<br />

PDM - pulse delta (duration) modulation<br />

PDMSS - programmed depot maintenance scheduling system<br />

PDN - public data net (network)<br />

PDS - packet driver specification<br />

PDS - partitioned data set<br />

PDS - processor-direct slot<br />

PDS - processing <strong>and</strong> display system<br />

PDS - program data source<br />

PDS - protected distribution system<br />

PDSN - public data switched network<br />

PDSO - packet data security overlay<br />

PDSS - post deployment software support<br />

PDT - programmable data terminal<br />

PDU - protocol data unit<br />

PDU - power distribution unit<br />

PE - phase encoded<br />

PE - peripheral equipment<br />

PEA - pocket Ethernet adapter<br />

PEBES - Personal Earnings <strong>and</strong> Benefits Statement (SSA)<br />

PECL - positive emitter-coupled-logic<br />

PEEL - programmable electrically erasable logic<br />

PEIP - Programmable Embedded INFOSEC Product (NRL)<br />

PEM - privacy enhanced mail<br />

PEO - program executive officer<br />

PEP - peak envelope power<br />

Per-Channel Signaling - Transmission of signaling information in<br />

binary codes for each channel.<br />

Permanent Virtual Circuit - A virtual circuit resembling a leased line<br />

in that invariant logical channel numbers allow it to be dedicated<br />

to a single user.<br />

PERMS - personnel electronic records management system<br />

Personality Module - Plug-in modules on the quad analog voice<br />

port 4-wire analog interface card that support E&M 4-wire<br />

signaling types I through V.<br />

PEX - PHIGS extension to X Windows<br />

PFIAB - President’s Foreign Intelligence Advisory Board

---

PFM - passport files miniaturization<br />

PFM - pulse-phase modulation<br />

PGA - pin grid array<br />

PGE - power generation equipment<br />

PGWS - primary groupware server<br />

ph - telephone<br />

Phase - The time or angle that a signal is delayed with respect to<br />

some reference position.<br />

PHIC - Portable Human Computer Interface (DARPA)<br />

PHID - positive hostile identification<br />

PHIGS - programmer’s hierarchical interactive graphics system<br />

PHILLS - Portable Hyperspectral Images for Low Light Spectroscopy<br />

PHOTINT - Photographic Intelligence<br />

PHP - personal h<strong>and</strong>y phone (Japan)<br />

PHS - primary HMMWV Shelter<br />

Physical Slots - The actual slot on a card shelf that a module<br />

occupies. Also see card shelf <strong>and</strong> logical slots.<br />

PIA - peripheral interface adapter<br />

PIC - personal information carrier (Army)<br />

PIC - Personal Intelligent Communicator<br />

PIC - priority interrupt controller<br />

PIC - programmable interconnect component<br />

PIC - Primary Interexchange Carrier. This is your default "1+" carrier<br />

used for interLATA calls. In some areas you may have two PICs,<br />

one for interLATA calls, <strong>and</strong> one for intraLATA long distance calls<br />

(in which case it st<strong>and</strong>s for Primary Intraexchange Carrier). In<br />

some areas intraLATA long distance calls are still h<strong>and</strong>led by your<br />

RBOC, in others you now have a choice.<br />

PIC - peripheral interface controller<br />

PICS - platform for internet content selection<br />

PICS - protocol implementation conformance statement<br />

PIDP - programmable indicator data processor<br />

PIE - protected information environment (Navy)<br />

PIF - picture interchange format file<br />

PIM - personal information manager<br />

PIM - processor-in-memory<br />

PIM - protocol independent multicast<br />

PIN - personal identification number<br />

PIN - processor independent netware<br />

PING - (Packet Internet Groper) - A program in the Internet used to<br />

test the ability to reach destinations by sending them an ICMP<br />

echo request.<br />

PIP - Primary Injection Point<br />

PIR - priority information requirements (Army)<br />

PIR - personnel information roster<br />

PIU - path information units<br />

PIX - private Internet exchange<br />

PIXEL - picture element<br />

PKAF - Public Key Authentication Framework<br />

PKC - public key cryptography<br />

PKCS - public key cryptography st<strong>and</strong>ards<br />

Page 78 of 106<br />

PKE - public key encryption<br />

PKI - public key infrastructure<br />

pkt - packet<br />

PLA - programmable logic-array<br />

PLA - plain language address<br />

PLAD - plain language address directory<br />

PLAID - Precision Location <strong>and</strong> Identification system (USAF)<br />

PLC - programmable logic controller<br />

PLC - power line conditioner<br />

PLCP - physical layer <strong>and</strong> convergence protocol<br />

PLD - programmable logic device<br />

Plesiochronous - A condition in a synchronized digital network<br />

where communicating devices are each synchronized to a<br />

different timing source of the same accuracy <strong>and</strong> stability. Two<br />

signals are plesiochronous if their corresponding significant<br />

instants occur at nominally the same rate, but not necessarily in<br />

the same phase, with any variation in rate constrained within<br />

specified limits.<br />

PLGR - precision lightweight GPS receiver<br />

PLI - private line interface<br />

PLI - position location information<br />

PLL - phase locked loop<br />

PLL - prescribed load list<br />

PLN - private line network<br />

PLR - pulse link repeater<br />

PLRS - position location <strong>and</strong> reporting system<br />

PLRSMAN - PLRS manager<br />

PLS - physical layer signaling<br />

plt - platoon<br />

PLT - program library tape<br />

PM - phase modulation<br />

PM - program manager<br />

PM - pulse modulation<br />

PMAC - packet media access controller<br />

PMCS - Preventive Maintenance Checks <strong>and</strong> Services<br />

PMD - physical-layer media-dependent<br />

PMM - Power Management Module<br />

PMMU - paged memory management unit<br />

PMO - program management office<br />

PMO - Project Management Officer<br />

PMP - AT&T "Custom Point to Point" Custom ISDN Protocol. See<br />

Custom ISDN <strong>and</strong> ISDN Protocol.<br />

PMSP - pre message security protocol<br />

PN - processing node<br />

PN - pseudo noise<br />

PN - public network<br />

PN - pseudor<strong>and</strong>om noise<br />

PNCS - primary net control station<br />

PNG - Portable Network Graphics<br />

PNI - primary network interface

---

PNID - Precedence Network In Dialing<br />

PNID - precedence network inward dial<br />

PNL - panel<br />

PNMC - Packet Network Management Center<br />

PNNI - Private Network to Network Interface<br />

PNS - primary node switch<br />

POC - point of contact<br />

POCSAG - Post Office Code St<strong>and</strong>ardization Advisory Group<br />

POES - Polar-Operational Environmental Satellite<br />

Point-to-Point Networks - Simple networks that interconnect two<br />

points directly with no intermediate processing nodes, computers,<br />

or branched circuits.<br />

pol - polarization<br />

POL - petroleum, oil, <strong>and</strong> lubricants<br />

Polarity - Any condition in which there are two opposing voltage<br />

levels or charges, such as positive <strong>and</strong> negative.<br />

Polling - The individual selection of multiple terminals by a controller<br />

to allow transmission of traffic to/from all terminals on a multidrop<br />

line in an orderly manner.<br />

POP - Point Of Presence. The local facility where your IEC maintains<br />

a switch. This is where your long distance calls get routed so that<br />

your IEC can h<strong>and</strong>le them.<br />

POP - Post Office Protocol<br />

Port - A physical interface between the node <strong>and</strong> customer<br />

equipment. Each call has an origination <strong>and</strong> destination port. Port<br />

also refers to a user-configured port on an SDMS card, which can<br />

be the bundle port 0 or a subrate port. Also see channel.<br />

Port ID - Ports are identified through the Operator Interface by a<br />

one- or two-digit number preceded by a P, the card ID, <strong>and</strong> an<br />

optional node ID (for example, N50C10P0). Some port IDs also<br />

have an optional digroup ID (for example, N2C26.1P0). To specify<br />

all ports, enter a card ID only. Also see virtual call ID.<br />

Port Parameters - See parameters.<br />

Port Routing Requirements - Port routing requirements bias calls<br />

toward or away from trunks configured with specific trunk<br />

attributes (Required, Preferred, Prefer Not, <strong>and</strong> Don't Care).<br />

Trunk attributes are Terrestrial, Satellite, Encrypted, <strong>and</strong> DSI.<br />

PORTS - portable receiver/transmit system<br />

POS - point of sale<br />

POS - packet over SONET<br />

POS/NAV - position location/navigation<br />

POSIX - portable operating system interface exchange<br />

POSNAV - position navigation<br />

POST - passive optical seeker technology<br />

POT - point of termination<br />

POT - Plain Old Telephone. A black, rotary-dial desk phone. Usually<br />

a Western Electric model 500 set. Outdated term.<br />

POTS - plain old telephone service<br />

POTS - Purchase of Telecommunications Services (GSA/FTS)<br />

POTS - Plain Old Telephone Service. Regular old-fashioned analog<br />

loop start phone service.<br />

Power Requirements - The power requirements of each module<br />

must be considered when configuring a shelf.<br />

Power Supplies - The power source on the node.<br />

PP - patch panel<br />

Page 79 of 106<br />

PPBES - programming, planning, budgeting <strong>and</strong> execution system<br />

PPBS - planning, programming <strong>and</strong> budgeting system<br />

PPI - plan position indicator<br />

PPI - Processor-to-Processor Interface<br />

PPK - preplaced keys<br />

PPL - preferred products list<br />

PPM - pages per minute<br />

PPM - pulse position modulation<br />

ppm - pulses per minute<br />

PPO - preferred provider organization<br />

PPP - Program Protection Planning (Navy)<br />

PPP - primary patch panel<br />

PPP - Point-to-Point Protocol<br />

PPPoE - Point-to-Point Protocol over Ethernet<br />

PPS - packets per second<br />

pps - pulses per second<br />

PPSN - public packet switched network<br />

PPTP - Point-to-Point Tunneling Protocol<br />

PQS - parellel query server<br />

PR - Premise Router<br />

pr - pair<br />

PR - pulse repeater<br />

PR/SL - Primary Regional Switch Location<br />

PRA - Paperwork Reduction Act<br />

PRA - primary rate access<br />

PRACSA - Public Remote Access Computer St<strong>and</strong>ards Association<br />

PRAM - Parallel R<strong>and</strong>om-Access Machine<br />

PRAM - Parameter R<strong>and</strong>om Access Memory<br />

PRAM - Programmable R<strong>and</strong>om Access Memory<br />

PRAMS - Passenger Reservation <strong>and</strong> Manifesting System<br />

PRBG - pseudo-r<strong>and</strong>om bit generator<br />

PRBS - pseudo r<strong>and</strong>om binary sequence<br />

PRC - (Primary Rate Card) Module - This module can be used as a<br />

two-digroup clear-channel interface in Native mode or as a DS1<br />

front card replacement in Emulation mode. (In its PRC INTL<br />

software configuration, the module cannot be used as a DS1<br />

replacement).<br />

PRC/TMCP Proprietary Bundle - A group of one or more DS0s<br />

installed on a TRK-3 t<strong>and</strong>em-mode card. PRC/TMCP proprietary<br />

bundles provide connectivity between the IDNX node <strong>and</strong> off-net<br />

PRC/TMCP ports.<br />

Preempt Priority - A number from 0 through 15 that is assigned to<br />

each port. Calls with a lower priority are disconnected to fulfill a<br />

call request with the higher priority. The default is 0.<br />

PREP - programmable electronics performance<br />

PRF - Pulse Repetition Frequency<br />

PRI - Primary Rate Interface. A form of ISDN with 23 "B Channels"<br />

<strong>and</strong> one "D channel." All 24 channels are on a single cable.<br />

Functionally related to T1 telephone circuits. In Europe PRI has<br />

30 "B Channels" <strong>and</strong> one "D Channel".<br />

PRI - progressive RI

---

Primary Channel - A name for the T1 line that is formatted in the<br />

ISDN method of 23B or information (64 kbps) time slots plus one<br />

D or signaling channel.<br />

PRIME - Precision Range Integrated Maneuver Exercise Laser<br />

Range<br />

PRISM - portable, reusable, integrated software modules<br />

Private Network - A network established <strong>and</strong> operated by a private<br />

organization or corporation for users within that organization or<br />

corporation. Can be operated in concert with a public network.<br />

Also see public network.<br />

PRM - protocol reference model<br />

PRM - pulse rate modulation<br />

PRML - partial-response maximum-likelihood<br />

PROC - processor<br />

Processor - Module - See PPM <strong>and</strong> PLM modules.<br />

Prolog Procedure Menu - This menu of the Operator Interface lets<br />

you manage operators, set up terminal options, send messages<br />

to other operators, <strong>and</strong> move to the Functional Area menu.<br />

PROM - programmable read-only memory<br />

Promina 200 - Small multiservice access platform, supporting<br />

internodal T3/T1 trunks <strong>and</strong> CellXpress ATM trunks. It is<br />

compatible with <strong>and</strong> offers the same functionality as larger<br />

Promina multiservice access platforms. It is used by users who<br />

require smaller networks that do not need high b<strong>and</strong>width<br />

capacity, or who require remote, low traffic sites found in large<br />

networks. Available in an 8-slot configuration. Also see node.<br />

Promina 400 - Medium size high performance multiservice access<br />

platform, supporting internodal T3/T1 trunks <strong>and</strong> CellXpress ATM<br />

trunks. It is compatible with <strong>and</strong> offers the same functionality as<br />

larger Promina multiservice access platforms. Available in 12-slot<br />

<strong>and</strong> 24-slot configurations. Also see node.<br />

Promina 800 - N.E.T's largest high performance multiservice access<br />

platform, supporting internodal T3/T1 trunks <strong>and</strong> CellXpress ATM<br />

trunks. Comprised of one high speed shelf <strong>and</strong> one st<strong>and</strong>ard or<br />

expansion shelf with a combination of additional STS or EXS<br />

shelves for a maximum of up to eight shelves. Also see node.<br />

Promina Logic Module (PLM) - This module consists of a PLM front<br />

card <strong>and</strong> an interface (PLMI) <strong>and</strong> provides the processor control,<br />

clock, <strong>and</strong> switch matrix functionality for Promina 400 <strong>and</strong> 200<br />

nodes. It uses a Motorola 68LC040 microprocessor operating at<br />

25 MHz. The PLM's flash memory provides data storage of the<br />

boot code, system runtime code, <strong>and</strong> configuration database. The<br />

PLM's DRAM memory provides all normal run-time code<br />

execution space, stack space, <strong>and</strong> scratch pad storage. The PLMI<br />

has two serial ports for modem <strong>and</strong> console connectivity <strong>and</strong> one<br />

internal Ethernet port for intranodal communication when an<br />

optional PSM is installed.<br />

Promina Processor Module (PPM) - This module consists of a<br />

PPM front card <strong>and</strong> an interface card (PPMI) <strong>and</strong> serves as the<br />

controller module for Promina 800 nodes. It uses a Motorola<br />

68LC060 microprocessor operating at 50 MHz <strong>and</strong> contains<br />

sufficient flash <strong>and</strong> DRAM memory to load all system software,<br />

including the configuration database. This module resides on the<br />

HSS <strong>and</strong> provides an internal Ethernet port for intranodal<br />

communication <strong>and</strong> a console port for connection to a console.<br />

Promina Server Module (PSM) - This module consists of a PSM<br />

front card <strong>and</strong> an interface (PSMI) <strong>and</strong> serves as the node file<br />

system manager <strong>and</strong> the focal point for local network<br />

management <strong>and</strong> remote access administrative <strong>and</strong> service<br />

communications for Promina 800, 400, <strong>and</strong> 200 nodes. It uses a<br />

Motorola 68LC040 microprocessor operating at 25 MHz <strong>and</strong><br />

includes a hard disk drive for storage of system code,<br />

configuration database, event logs, <strong>and</strong> feature module code. The<br />

PSMI has two serial ports for modem <strong>and</strong> console connectivity,<br />

one internal Ethernet port for intranodal communication, <strong>and</strong> one<br />

external Ethernet port for connection to a NMS workstation or an<br />

LAN.<br />

Page 80 of 106<br />

Proprietary Bundle - A group of one or more DS0s installed on a<br />

TRK-3 span-mode card. Proprietary bundles provide fractional<br />

service between TRK-3 cards within the Promina or IDNX<br />

network.<br />

Protocol - A formal set of communications conventions <strong>and</strong> rules<br />

setting the format <strong>and</strong> control of inputs <strong>and</strong> outputs between two<br />

communicating devices or processes.<br />

Protocol Converter - A device for translating the data transmission<br />

code of one computer or peripheral to the data transmission code<br />

of another computer or peripheral, thus enabling equipment with<br />

different data formats to communicate with one another.<br />

Provisioning - The act of configuring an ISDN line. Also refers to the<br />

complete line configuration information.<br />

PRR - pulse repetition rate<br />

PRS - primary reference source<br />

PRSL - primary region switch location<br />

PRSL - primary zone switch location<br />

PRSW - Promina Switching Card<br />

PS - packet switch<br />

PS - processing subsystem<br />

PS2 Power - Power provided on pins 7 <strong>and</strong> 8 of the "S" interface<br />

cable. This power is used so that an NT-1 can provide power to a<br />

terminal (usually a phone). In some cases it is used to allow a<br />

terminal to power an NT1.<br />

PSAP - public safety answering points<br />

PSC - print server comm<strong>and</strong><br />

PSC - (Primary Signaling Channel) - PSC is associated with the<br />

Signaling Channel Link Protocol (SCLP) channels. The<br />

PSC/SCLP designation emphasizes that this is the primary<br />

channel for transmitting signaling <strong>and</strong> control information between<br />

nodes for Promina <strong>and</strong> IDNX nodes. See also SCLP <strong>and</strong> SSC.<br />

PSC - Power Supply Cabinet<br />

PSDD - Preliminary Software Design Document<br />

PSDN - packet-switched data network<br />

PSDN - public switched data network<br />

PSDS - packet-switched data service<br />

PSEP - protected signal entry panel<br />

PSH - push flag, TCP header<br />

PSHTI - Packet Switch Host Trunk Interface<br />

PSI - process to support interoperability (NATO)<br />

PSID - PostScript image data<br />

PSK - phase-shift keying<br />

PSN - public switched network<br />

PSN - packet switch network, packet switch node<br />

PSPDN - Packet-Switched Public Data Network<br />

PSS - portable security system<br />

PSTAR - portable search <strong>and</strong> tracking acquisition radar<br />

PSTN - public switched telephone network<br />

PSWN - Public Safety Wireless Network<br />

PSYOP - psychological operations<br />

PT - plain text<br />

PTADSS - portable tactical automated dependent surveillance<br />

system<br />

PTC - patch

---

PTCS - plain text clear to send<br />

PTD - parallel transfer disk drive<br />

PTDM - plain text data mode<br />

PTF - patch <strong>and</strong> test facility<br />

PTLL - plain text local loopback<br />

PTM - Point-To-Multipoint<br />

PTM - pulse-time modulation<br />

PTMON - plain text monitor<br />

PTOCA - presentation text object content architecture<br />

PTP - Point-To-Point<br />

PTP - AT&T "Custom Point to Point" Custom ISDN Protocol. Pointto-Point<br />

lines have only one incoming phone number which must<br />

be dialed twice to connect to both lines. See Custom ISDN <strong>and</strong><br />

ISDN Protocol.<br />

PTR - preliminary technical review<br />

PTRL - plain text remote loopback<br />

PTRR - plain text receiver ready<br />

PTRS - plain text request to send<br />

PTS - parellel transaction server<br />

PTT - push-to-talk, postal telephone <strong>and</strong> telegraph<br />

PTTI - precise time <strong>and</strong> time interface (interval)<br />

PTTM - plain text test mode<br />

PTTR - plain text terminal ready<br />

PTTT - plain text terminal timing<br />

PTW - precision targeting work station<br />

PTX - Practical Training Exercise<br />

PU - Participating Unit<br />

PU - physical unit<br />

PU - purpose <strong>and</strong> use<br />

PUA - profiling user agent<br />

PUB - Publication<br />

Public Network - A network operated by common carriers or<br />

telecommunications administrations for the provision of circuitswitched,<br />

packet-switched, <strong>and</strong> leased-line circuits to the public.<br />

Also see private network.<br />

Pulse Density - A measure of the ones (marks, pulses) in relation to<br />

the total number of digit time slots transmitted. Current Bell<br />

specifications require no more than 15 consecutive zeros, with an<br />

average of 12.5 percent pulse density on T-1 facilities. Also see<br />

zero suppression.<br />

PUS - processor upgrade socket<br />

PVA - prime voice analog<br />

PVC - permanent virtual circuit<br />

PVM - parallel virtual machine<br />

PVSEC - prime voice secure card<br />

PVT - private<br />

PWA - printed wiring assembly<br />

PWB - printed wiring board<br />

PWDS - protected wireline distribution system<br />

PWG - permanent working group<br />

PWM - pulse width modulation<br />

Page 81 of 106<br />

PWR - power<br />

PX - private exchange<br />

PX Platform Module - This module provides packet-switched<br />

services over a wide-area-network <strong>and</strong> supports these networking<br />

applications: LWX, FRX, <strong>and</strong> ISDNX.<br />

QA - quality assurance<br />

Q<br />

QAE - quality assurance evaluator<br />

QAM - quadrature amplitude modulation<br />

QASD - (Quad Asynchronous/Synchronous Data) Module - This<br />

module provides four ports that can be independently<br />

programmed to operate in either the asynchronous or<br />

synchronous mode, at various speeds, for data transmission in a<br />

network.<br />

QAVP - (Quad Analog Voice Port) Module - This module provides<br />

support for up to four 4-wire full duplex ports that can be<br />

interfaced to either the signaling or trunking end of PBXs, central<br />

offices or channel banks. This module converts 3 kHz b<strong>and</strong>width<br />

analog signals to 64 kbps PCM (pulse code modulation) <strong>and</strong> vice<br />

versa.<br />

QBRI - quad basic rate interface<br />

QCMBR - quality of service capable multicast bi-level router<br />

QCP - quick-connect panel<br />

QDISPL - Queue Display<br />

QE - quantum efficiency<br />

QEAM - quick erect antenna mast<br />

QED - quantum effect design<br />

QEEM - quick erect exp<strong>and</strong>able mast<br />

QFA - quick file access<br />

QIP - quality improvement prototype<br />

QIP - quadritech Internet protocol<br />

QIP - Quadritech IP Management<br />

QMF - query management facility<br />

QML - qualified manufacturing line<br />

QOS - quality of service<br />

QPSK - quadrature phase shift keying<br />

QRA - quick reaction antenna<br />

QRMP - quick reaction multicolor printer<br />

QRSA - quick-reaction satellite antenna<br />

QRSAG - quick reaction satellite antenna group<br />

QRSS - Quasi-R<strong>and</strong>om Signal Source<br />

QSAM - queued sequential access method<br />

QSC - quad synchronous module<br />

QSD Module - This module supplies up to four data ports with an<br />

RS-232 interface at rates from 1.2 kbps to 19.2 kbps. The QSD-2<br />

supports V.35 interfaces for speeds up to 56 kbps.<br />

QSP - quad synchronous processor module<br />

QTGM - Quad Transmission Group Multiplexer<br />

QTY - quantity

---

quan - quantity<br />

Quantizing - See comp<strong>and</strong>ing.<br />

Quasi-R<strong>and</strong>om Signal - A signal consisting of a bit sequence which<br />

approximates a r<strong>and</strong>om signal.<br />

QXP - (Quad X.21 Port) Module - This module supplies up to four<br />

independent X.21 interfaces for data communications, supporting<br />

speeds from 1200 bps to 64 kbps. It is used to interface to a<br />

leased X.21 circuit, or to provide a gateway to public X.21<br />

networks.<br />

R<br />

R - required, AN/TTC-42 reentry key<br />

R - Routine<br />

R - restricted<br />

R&S - reconnaissance <strong>and</strong> surveillance<br />

R/C - redundant-communications security capable<br />

R/C - Redundant capable<br />

R/NC - redundant-not communications security capable<br />

R/T - receive/transmit<br />

R/Y - GENSER or SCI<br />

R1 - Switch Traffic Report<br />

R2 - Node Pair Traffic Report<br />

R3 - Summary Report for TGCS<br />

R4 - Precedence Report for TGCS<br />

R5 - Loop Traffic Report<br />

R6 - DTG BER Report<br />

RA - Remote Authentication<br />

RA - resync achieved<br />

RA - registration authority<br />

RACE - Research into Advanced Communications in Europe (see<br />

ACTS)<br />

RACF - resource access control facility<br />

Rack-Mounting Space - All telephone equipment <strong>and</strong> racks are<br />

designed so that their height is evenly divided by 1.75 inches<br />

(4.45 cm); 1.75 inches (4.45 cm) is the vertical dimension of one<br />

rack-mounting space in a telco rack. The dimensions of a single<br />

rack-mounting space in a cabinet are set so that any given piece<br />

of equipment will occupy one or more of these spaces.<br />

RAD - rapid application development (tool)<br />

RADAR - radio detection <strong>and</strong> ranging<br />

RADAY - radio day<br />

RADINT - radar intelligence<br />

RADSL - rate adaptive DSL<br />

RAID - redundant arrays of independent (inexpensive) disks (drives)<br />

RAIDS - rapid anti-ship missile integrated defense system<br />

RALU - register arithmetic logic unit<br />

RAM - r<strong>and</strong>om access memory<br />

RAM - reliability, availability <strong>and</strong> maintainability<br />

RAMTEC - rapid modular technical control<br />

RAP - radio access point<br />

RAP - rapid application prototyping<br />

RAP - recognized air picture (NATO)<br />

RARP - Reverse Address Resolution Protocol<br />

RAS - r<strong>and</strong>om access storage<br />

RAS - remote access server<br />

RASP - remote access security program<br />

RASP - reusable avionics software project<br />

RASSP - rapid prototyping of application-specific signal processing<br />

RASU - r<strong>and</strong>om access storage unit<br />

RAT - Registration Assistance Tool<br />

RAU - Radio Access Unit<br />

RAVN - Regimental aviation<br />

RB-STD - rubidium st<strong>and</strong>ard<br />

RBBS - remote bulletin board system<br />

RBC - (Relative Bus Cycle) - Unit of interface relative to the module's<br />

window on the TBus. Contrast with Absolute Bus Cycle (ABC).<br />

RBCS - remote bar coding system<br />

RBECS - Revised Battlefield Electronic Communications-Electronics<br />

Operation Instruction System<br />

RBECS - Revised Battlefield Electronic Communications- Electronics<br />

Operation Instruction System<br />

RBES - rule-based expert system<br />

RBI - RED/BLACK isolator<br />

RBI - RED-BLACK interface<br />

RBM - Receive Broadcast Manager<br />

RBOC - Regional Bell Operating Company. One of the regional<br />

companies formed when AT&T got out of the local telephone<br />

business. Each RBOC (or "baby bell") owns a number of the<br />

former "Bell Operating Companies". The Bell Operating<br />

Companies are the traditional local phone companies (pre-1984),<br />

except where one’s service is from an "Independent" (non bell)<br />

telephone company or a CLEC. Due to their former association<br />

with the Bell System RBOCs are regulated by the FCC differently<br />

than are independent Telcos. In many cases the Bell Operating<br />

Company structure is no longer used. For instance, here in Ohio<br />

we now deal directly with the RBOC, Ameritech, while the old Bell<br />

Operating Company, Ohio Bell Telephone, no longer exists.<br />

Another trend is mergers among the RBOCs (<strong>and</strong> in some cases<br />

the independents as well). See CLEC <strong>and</strong> LEC.<br />

RBS - remote base station<br />

RC - receive clock<br />

RCA - Radio Coverage Analysis<br />

RCAS - reserve component automation system<br />

RCC - radio-common carrier<br />

RCC - Rekey Cycle Complete<br />

RCC - Regional Control Center<br />

RCCS - radiological controls computer system<br />

RCERT - Regional Computer Emergency Response Team<br />

RCI - resource critical item<br />

RCL - radio communications/control link<br />

RCL - received carrier level<br />

RCM - resync control module<br />

RAMTIP - reliability <strong>and</strong> maintainability technology insertion program<br />

RCMC - Regional COMSEC Monitoring Center<br />

Page 82 of 106

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RCS - radar cross section<br />

RCS - requirements computation system<br />

RCSP - remote call service position<br />

RCTC - receive cipher text clock<br />

RCU - remote control unit<br />

RCU - rekeying control unit<br />

RCU - rate changer unit<br />

RCV - receive<br />

RCVD - Received<br />

RCVR - Receiver<br />

RD - Receive Data. Data coming from the network, or DCE towards<br />

the DTE. Also, a light on a modem or CSU/DSU which lights to<br />

indicate presence of this signal.<br />

RD - ringdown<br />

RD&J - radar deception <strong>and</strong> jamming<br />

RDA - remote data (base) access<br />

RDB - receive data buffer<br />

RDB - requirements data bank<br />

RDBMS - relational database management system<br />

RDCO - research development coordination office<br />

RDEC - Research Development <strong>and</strong> Engineering Center<br />

RDEL - RI delete<br />

RDF - radio direction finding<br />

RDG - r<strong>and</strong>om data generator<br />

RDJTF - rapid deployment joint task force<br />

RDLAP - radio data link access protocol<br />

RDM - remote data management<br />

RDM - RED data module<br />

RDN - relative distinguished name<br />

RDS - report distribution system<br />

RDSS - radio determination <strong>and</strong> satellite system<br />

RE - relay<br />

REACT - rapid execution <strong>and</strong> combat targeting system<br />

REC - radio electronic combat<br />

RECAP - recapitulation<br />

RECIPe - Remote Encryptor Configuration Information Protocol<br />

RECON - reconnaissance<br />

RECP - Regional Emergency Communications Planner (NCS)<br />

RECP - RI ECP<br />

Red Alarm - A Red Alarm means that an out of frame or carrier loss<br />

condition has been detected at the local receiver. This causes a<br />

yellow alarm to be transmitted to the far end.<br />

RED - classified<br />

RED - collateral<br />

Redundancy - Refers to backup hardware, software, <strong>and</strong><br />

transmission circuits that protect against network failure.<br />

ref - reference<br />

Regenerator - Equipment that reconstruct <strong>and</strong> retransmits a pulse<br />

train.<br />

Regional - Bell Operating Company - See RBOC.<br />

Page 83 of 106<br />

REIN - reintroduction<br />

REL - recovered energy logic<br />

REL - release<br />

RELP - residual excited linear prediction<br />

REMBASS - remotely monitored battlefield sensor system<br />

REMFM - Remote Fault Multiplexer<br />

Remote Debugger - Used by N.E.T. personnel to troubleshoot<br />

problems on the node.<br />

Remote Login (rlogin) - Allows you to gain access to the full<br />

Operator Interface on a remote node while in the node from which<br />

you are working.<br />

Remote Loop - The local port requests that the remote port<br />

implement a loop-in.<br />

Remote UI - A User Interface application not resident on the same<br />

machine as SSIMP-LR Main.<br />

REn - relay type code<br />

REOS - real-time electronic online system<br />

Repeater - A communications systems component that amplifies or<br />

regenerates signals to compensate for losses in the system.<br />

Reserved Slots - A slots on the cards shelf that is required for a<br />

specific card type.<br />

RESYNC - resynchronization<br />

RETRANS - retransmission<br />

REXEC - remote execution<br />

RF - radio frequency<br />

RFAM - radio frequency attack munition<br />

RFC - request for comments<br />

RFI - radio frequency interference<br />

RFIC - radio frequency integrated circuit<br />

RFID - radio frequency identification<br />

RFM - radio frequency module<br />

RFO - request for outage<br />

RFP - Request For Programming<br />

RFQ - radio frequency quadrupole<br />

RFS - radioelectronic fire strike (Russia)<br />

RFS - remote file sharing (system)<br />

RFS - request for service<br />

RFSM - Radio Frequency Spectrum Management<br />

RFT - revisable form text<br />

RGB - red-green-blue<br />

RH - right h<strong>and</strong><br />

RH - reentry home<br />

RHDD - Radiation Hardened Disk Drive<br />

RHDD - removable hard disk drives<br />

RHM - RED hub module<br />

RHP - reconfigurable hardware product<br />

RHR - radio horizon range<br />

RI - Ring Indicator<br />

RI - routing indicator<br />

RII - Relevant Information <strong>and</strong> Intelligence

---

RIM - rapid information management<br />

RINT - Radiation Intelligence<br />

RIO - Regional Information Officer<br />

RIP - raster image processor<br />

RIP - remote imaging protocol<br />

RIP - Routing Information Protocol<br />

RIPSO - revised interconnection protocol security option<br />

RIS - Rekey Initiate Sent<br />

RISC - Reduced Instruction Set Computer<br />

RISTA - reconnaissance, intelligence, surveillance <strong>and</strong> target<br />

acquisition<br />

RIU - remote interface unit<br />

RJ-45 - A serial connector which looks like a st<strong>and</strong>ard telephone<br />

connector, except it houses eight wires instead of four. Often<br />

used on devices such as terminal servers that have many ports.<br />

RJE - remote job entry<br />

RK - rekey<br />

RKA - rekey agent<br />

RKID - rekey ID<br />

RKV - VINSON rekey variable<br />

RKVD - VINSON rekey variable duplicate<br />

RLE - run length encoded<br />

RLGM - Remote Loop Group Multiplexer<br />

RLGM/CD - Remote Loop Group Multiplexer/Cable Driver<br />

RLL - run length limited<br />

RLOS - remote line-of-sight<br />

RLSD - received line signal detected<br />

RM - reference monitor<br />

RM - reprogrammable microprocessor<br />

RM - radio modem<br />

RMA - Revolution in Military Affairs<br />

RMAST - Reserve Mobile Ashore Support Terminal<br />

RMC - Remote Multiplexer Combiner<br />

RMC - Raptor management console<br />

RME - resource manager essentials<br />

RMI - remote message interface<br />

RMM - RED Multiplexer Module<br />

RMNCS - Regional Manager, National Communications System<br />

RMO - Resource Management Offices<br />

RMON - remote monitoring<br />

RMP - reprogrammable microprocessor<br />

RMS - requirements management system<br />

RMTOPER - remote operate<br />

RMTZERO - remote zero<br />

RN - regional nodes<br />

RN/C - redundant-not COMSEC capable<br />

RNA - rapid needs assessment<br />

RNG - r<strong>and</strong>om number generator<br />

Page 84 of 106<br />

RNOSC - Regional Network Operations <strong>and</strong> Security Center<br />

RNTDS - Restructured Navy Tactical Data System<br />

RO - read only<br />

Robbed Bit Signaling - A signaling scheme that "borrows" bits on<br />

each T1 channel for use as signaling channels. On SF T1's there<br />

are two bits, the A bit <strong>and</strong> the B bit in each direction. On ESF T1's<br />

there is also a C <strong>and</strong> D bit in each direction, although they are<br />

rarely used. Using these bits, various older analog trunk<br />

interfaces can be emulated over a T1. For instance, address<br />

signaling using 10 pulse per second (rotary style) digit groups<br />

over these bits. Since robbed bit signaling interferes with the least<br />

significant bit, only 7 bits can be used for sensitive data<br />

applications, leaving only a 56kbps channel for data applications.<br />

ROC - Regional Operation Center<br />

ROCE - rules of coordination <strong>and</strong> engagement<br />

ROCU - Remote Orderwire Control Unit<br />

ROI - return on investment<br />

Rollover - See Hunt Group<br />

ROM - read-only memory<br />

ROOM - real-time object-oriented modeling<br />

ROP - raster operation<br />

ROSC - Regional Operations <strong>and</strong> Security Center<br />

Router - Interconnects geographically dispersed networks.<br />

Routing Cost - The value or cost that has been assigned to each<br />

link in a network. In configuring a route for a call, the total value or<br />

cost for each possible route is determined <strong>and</strong> the route with the<br />

least cost is chosen.<br />

Routing Requirements - Determines the path a call takes to reach<br />

its destination.<br />

Routing Table - Each network node has a copy of the network<br />

routing table, which tracks link topology even when a link has<br />

more than one trunk. It also tracks trunk characteristics. For<br />

example, if the table indicates a link is both satellite <strong>and</strong><br />

terrestrial, it is understood that the link has multiple trunks.<br />

RP - restoration priority (now TSP)<br />

RP - release point<br />

RPC - remote procedure call<br />

RPG - report program generator<br />

RPL - resident programming language<br />

RPM - revolutions per minute<br />

RPOA - recognized private operating agency (CCITT)<br />

RPPROM - reprogrammable PROM<br />

RPTC - receive plain text clock<br />

RR - repetition rate<br />

RR - radio relay<br />

RR - receiver ready<br />

RR-MO - Response <strong>and</strong> Recovery Directorate's Mobile Operations<br />

Division<br />

RR - receiver-ready<br />

RR - resource record<br />

RRAU - remote radio access unit<br />

RRM - RED router module<br />

RRR - Rekey Request Received<br />

RRS - remote relay system

---

RS-232C - Industry st<strong>and</strong>ard specifications for mechanical <strong>and</strong><br />

electrical interfacing of DTE with DCE; a 25-pin physical interface.<br />

RS-422 - Trunk Module - This module provides an RS-449/422compatible<br />

interface that operates at speeds ranging from 256<br />

kbps to 2048 kbps. It offers the same functionality as the T1 trunk<br />

module, including multiplexing internodal signaling <strong>and</strong> support for<br />

all voice compression methods.<br />

RS-423 - An unbalanced electrical implementation of RS-449 for RS-<br />

232C compatibility.<br />

RS - request to send<br />

RS - rate synthesizer<br />

RS - router subsystem<br />

RSA - Rivest, Shamir, Adleman<br />

RSAR - recipient specified alternate recipient<br />

RSB - Routing Subsystem Buffer<br />

RSB - routing signaling buffer<br />

RSB/DA - Routing Subsystem Buffer/Data Adapter<br />

RSBC - Routing Subsystem Buffer Controller<br />

RSBC - routing signaling buffer controller<br />

RSBIN - Remote Signaling Buffer Interface<br />

RSC - remote switching center<br />

RSC - RED station clock<br />

RSCD - RS-423 to CDlp card<br />

RSCS - remote spooling communications system<br />

RSDC - reconnaissance-strike-defense complex<br />

RSH - REDCOM Shell<br />

rsh - remote shell<br />

RSL - received signal level<br />

RSMI - remote soldier machine interface<br />

RSNOC - RES switch operations center<br />

RSOC - Regional Signals Intelligence Operations Center<br />

RSP - radio switch panel<br />

RSP - readiness spare packet<br />

RSS - Routing Subsystem<br />

RSS-D - downsize routing subsystem<br />

RSS - radio subsystem<br />

RSSC - Regional Space Support Center<br />

RSSC - Regional Satellite Support Center<br />

RSSD - routing subsystem downsized<br />

RSSMOP - Routing Subsystem Maintenance <strong>and</strong> Operation<br />

Program<br />

RST - reset flag, TCP header<br />

RSTA - Reconnaissance, Surveillance <strong>and</strong> Target Acquisition<br />

RSTC - reconnaissance-strike-target complex<br />

RSTER - radar surveillance technology experimental radar<br />

RSU - Routing Signaling Unit<br />

RSU - remote switch unit<br />

RSVP - Resource Reservation Protocol<br />

RSVP - Resource Reserve Protocol<br />

RSX - real time resource sharing executive<br />

Page 85 of 106<br />

RT - receiver-transmitter<br />

Rt - route<br />

RT - radio transmitter<br />

RT - remote terminal<br />

RTA - remote trunk arrangement<br />

RTAM - remote terminal access method<br />

RTC - (Real Time Clock) - In Promina systems RTC is used as a<br />

relative measurement of real time processing for indicating when<br />

a processor is overloaded.<br />

RTCA - Radio Technical Commission for Aeronautics<br />

RTCP - Real Time Transport Control Protocol<br />

RTCU - remote terminal control unit<br />

RTDI - responsive theater defense interceptors<br />

RTE - run time environment<br />

RTE - receive timing error<br />

RTF - rich text format<br />

RTIC - real time information in cockpit<br />

RTL - register-transfer level (language)<br />

RTLP - receiver test level point<br />

RTM - response time monitor<br />

RTM - real-time mode<br />

RTO - recovery time objective<br />

RTO - retransmission time out<br />

RTOS - real-time operating system<br />

RTP - real-time protocol<br />

RTP - Real Time Transport Protocol<br />

RTR - router<br />

RTS - rapid targeting system (Navy)<br />

RTS - (Request To Send) - An Electronics Industry Association (EIA)<br />

signal that may be passed end-to-end using the transparent<br />

signaling feature.<br />

RTS - remote transfer switch<br />

RTT - round-trip time<br />

RTTC - Regional Technical Transfer Center<br />

RTTY - Remote Teletype<br />

RTTY - radio teletypewriter<br />

RTU - remote terminal unit<br />

RTV - real time video<br />

RU - Routing Unit<br />

RV - receive variable<br />

RVA - relative virtual address<br />

RVDT - Remote Video Display Terminal<br />

RVDTC - Remote Video Display Terminal Controller<br />

RVI - reverse interrupt<br />

RVM - reference validation mechanism<br />

RVWG - Reliability <strong>and</strong> Vulnerability Working Group<br />

RWI - radio wire integration<br />

RWR - radar warning receiver<br />

RWS - remote workstation

---

RX - receive<br />

RXCLK - receive clock<br />

RXCLKIN - receive clock in RXREF receive reference<br />

RXDCT - receive digital cipher text<br />

RXDPT - receive digital plain text<br />

RZ - (Return to Zero) - See unipolar.<br />

S - secret<br />

S<br />

S-HTTP - Secure Hypertext Transfer Protocol<br />

S - Interface - The electrical interface between the NT-1 <strong>and</strong> the<br />

Terminal Adapter or other ISDN equipment. ISDN equipment with<br />

built-in NT1’s do not necessarily provide access to the S interface.<br />

Multiple devices can share an NT-1 by connecting on the S<br />

interface. Also known as the S passive bus.<br />

S-A - satellite access<br />

S - compartmented key<br />

S&F - store <strong>and</strong> forward<br />

S/EWCC - signals intelligence/electronic warfare coordination center<br />

S/N - signal to noise ratio<br />

S1 - Adjutant (US Army)<br />

S2 - Intelligence Officer (US Army)<br />

S2M - European term for ISDN PRI. See PRI <strong>and</strong> ISDN 30.<br />

S3 - st<strong>and</strong>-alone shared storage<br />

S3 - Operations <strong>and</strong> Training Officer (US Army)<br />

S4 - Supply Officer (US Army)<br />

S6 - Communications Officer (US Army)<br />

SA - selective availability (GPS)<br />

SA - situational awareness<br />

SA - system administrator<br />

SA Trunk Module - This module provides symmetric <strong>and</strong><br />

asymmetric trunking capabilities (asymmetric means that the<br />

transmit <strong>and</strong> receive rates do not have to be the same on the<br />

trunk).<br />

SA - symmetric/asymmetric<br />

SA - st<strong>and</strong>alone<br />

SA-TRK - symmetric/asymmetric trunk<br />

SA - Security Administrator<br />

SAA - satellite access authorization<br />

SAA - SIPRNET Access Authorization<br />

SAAS - st<strong>and</strong>ard ammunition automated system<br />

SABER - situational awareness beacon with reply<br />

SABI - secret <strong>and</strong> below interoperability<br />

SABM - set asynchronous balanced mode<br />

SAC - service access code<br />

SACCS - strategic automated comm<strong>and</strong> <strong>and</strong> control systems (Navy)<br />

SACK - selective acknowledgement<br />

SACS - secure access control system<br />

Page 86 of 106<br />

SACS - satellite mission control subsystem<br />

SADL - situational awareness data link<br />

SADT - structured analysis <strong>and</strong> design technique<br />

SAG - SQL access group<br />

SAILS - st<strong>and</strong>ard Army installation logistics system<br />

SAIRS - st<strong>and</strong>ardized advanced infrared system<br />

SAISS - Subcommittee on Automated Information Systems Security<br />

SAL - security access level<br />

SALTS - streamlined alternative logistic transmission system<br />

SAM - self-assembled monolayers<br />

SAM - software asset management<br />

SAM - SPEED Application Manager<br />

SAME - SQL Ada module extension<br />

SAMEDL - SQL Ada module extension description language<br />

SAMMS - st<strong>and</strong>ard automation material management system<br />

SAMP - Security/Accreditation Management Plan<br />

SAMP - Security Association Management Protocol<br />

Sampling Rate - The rate per unit of time at which samples are<br />

taken of a particular waveshape's amplitude.<br />

SAN - storage area network<br />

SAP - survivable adaptive planning<br />

SAR - Synthetic Aperture Radar<br />

SAR - (Segmentation <strong>and</strong> Reassembly) - A method of breaking up<br />

arbitrarily sized packets. Source: ATM Forum.<br />

SAR - satellite access request<br />

SAR/MTI - Synthetic Aperture Radar <strong>and</strong> Moving Target Indicator<br />

SARK - Saville Advanced Remote Keying<br />

SAS - survivable adaptive systems<br />

SAS - second antenna system<br />

SASD - server-attached storage device<br />

SASS - SIGINT analysis <strong>and</strong> simulation system<br />

SASS - Systems Acquisition Support Services (DIA)<br />

SAT - security audit trail<br />

SAT - satellite<br />

SAT-R - st<strong>and</strong>ard AUTODIN terminal-GENSER<br />

SAT-Y - st<strong>and</strong>ard AUTODIN terminal-DSSCS<br />

SATAN - Security Administrator Tool for Analyzing Networks<br />

SATCOM - satellite communication<br />

Satellite Communications - The use of geostationary orbiting<br />

satellites to relay transmission from one earth station to others.<br />

SATM - INMARSAT Module<br />

SATPLAN - Satellite Planner<br />

SATR - Synthetic Aperture Targeting Radar<br />

SAU - servo amplifier unit<br />

SAW - surface acoustic wave<br />

SB - switchboard<br />

SB - small board<br />

SBC - single board computer

---

SBC - Signaling Buffer Controller<br />

SBCC - Signaling Buffer Controller Card<br />

SBI - (Shelf Bus Interface) Card - This card on the Promina HSS-2<br />

shelf is the interface between the SX-2 module <strong>and</strong> the other<br />

modules in the shelf. There is an SBI A card <strong>and</strong> an SBI B card<br />

for redundancy.<br />

SBIRS - Space-Base infrared system<br />

SBIS - Sustaining Base Information Services<br />

SBLC - st<strong>and</strong>ard base-level computer<br />

SBM - Satellite Broadcast Manager<br />

SBM - Satellite Broadcast Manager<br />

SBPSK - shaped beam phase shift keying<br />

SBU - sensitive but unclassified<br />

SC - single channel<br />

SC - system controller<br />

SC - Signal Corps<br />

SC - switched connected<br />

SC - station clock<br />

SCADA - supervisory control <strong>and</strong> data acquisition<br />

SCAMP - Single Channel Antijam ManPortable Terminal<br />

SCAMPI - single channel anti-jam manportable interface<br />

SCC - serial communications controllers<br />

SCC - specialized common carrier<br />

SCC - st<strong>and</strong>ards coordinating committee<br />

SCC - system control center<br />

SCC-2 - system control center-2<br />

SCCB - software configuration control board<br />

SCCS - source code control system<br />

SCD - st<strong>and</strong>ard color display<br />

SCDL - surveillance control (common) data link<br />

SCDU - signal conditioning <strong>and</strong> display unit<br />

SCE - service control environment (AIN)<br />

SCE - service creation environment<br />

SCE - service cryptologic element<br />

SCE - software capability evaluation<br />

SCF - service control facility<br />

SCG - switching control group<br />

SCI - scaleable coherent interface<br />

SCI - sensitive compartmented information<br />

SCIF - sensitive compartmented information facility<br />

SCIP - Society of Competitive Intelligence Professionals<br />

SCLP - (Signaling Channel Link Protocol) - The SCLP (also known<br />

as the Signal Unit) provides a common channel signaling system<br />

that allows each node to communicate control <strong>and</strong> signal<br />

information with other nodes in a network. An SCLP channel is<br />

associated with every trunk in the network. In Promina networks<br />

SCLP is also used to transport IP Packets.<br />

SCLP Task - All signaling <strong>and</strong> control information is transmitted<br />

between nodes on pre-defined trunk signaling channels called<br />

Signaling Channel Link Protocol (SCLP) channels. SCLP refers to<br />

the Layer 2 point-to-point protocol. An SCLP task exists for each<br />

Page 87 of 106<br />

trunk on a node to manage the Layer 2 protocol. This SCLP task<br />

also performs some Layer 3 routing functions.<br />

SCM - software configuration management<br />

SCM - spectrum certification module<br />

SCM - Security Configuration Manager<br />

SCMP - software configuration management plan<br />

SCN - switched circuit network<br />

SCO - Santa Cruz Operation<br />

SCOMP - secure communications processor<br />

SCOPS - security concept of operations<br />

SCOTT - Single Channel Objective Tactical Terminal<br />

SCP - service control point (AIN)<br />

SCP - system control program<br />

SCPC - single channel per carrier<br />

SCPU - switch control processor unit<br />

SCR - Silicon-Controlled Rectifier<br />

SCRF - subchannel reassignment function<br />

SCRIPS - Service Center Recognition Image Processing System<br />

(IRS)<br />

SCS - survivable control system<br />

SCS - stabilization <strong>and</strong> control subsystem<br />

SCSI - small computer systems interface<br />

SCSR - single channel signaling rate<br />

SCSS - Service Center support system<br />

SCTE - Source Clock Terminal Element<br />

SD - send data<br />

SD - switched DA<br />

SDA - software disk array<br />

SDA - system design architecture<br />

SDC - signal data connector<br />

SDC - signal data converter<br />

SDD - Secure Data Device<br />

SDD - software design document<br />

SDE - Shared Data Environment<br />

SDF - software development file<br />

SDF - st<strong>and</strong>ard delay file<br />

SDH - synchronous digital hierarchy<br />

SDI - single document interface<br />

SDK - software development kit<br />

SDL - Software Development Library<br />

SDLC - (Synchronous Data Link Control) - A bit-oriented, layer 2<br />

protocol developed by IBM that is essentially the same as the ISO<br />

HDLC <strong>and</strong> the CCITT LAP-B, among others.<br />

SDM - space-division multiplexing<br />

SDM - sync detection module<br />

SDMO - Specifications & Data Management Officer<br />

SDMX - space division matrix<br />

SDN - software defined network<br />

SDN - SOF Deployable Node

---

SDNRI - secure digital net radio interface<br />

SDNRIU - secure digital net radio interface unit<br />

SDNS - secure data networking system<br />

SDP - software development plan<br />

SDP - service delivery plan<br />

SDR - service denial records<br />

SDRA - satellite digital radio service<br />

SDRAM - synchronous DRAM<br />

SDS - small digital switch<br />

SDS - software development system<br />

SDS - strategic data system<br />

SDS - sysops distribution system<br />

SDS - space division subscriber<br />

SDSG - space division switching group<br />

SDSL - Single-line, hi-bit-rate DSL<br />

SDSL - symmetric digital subscriber line<br />

SDSM - space division switching matrix<br />

SDTS - spatial data transfer st<strong>and</strong>ard<br />

SDU - storage device unit<br />

SDVS - state delta verification system<br />

SEAD - Suppression of Enemy Air Defenses<br />

SEAL - segmentation <strong>and</strong> reassembly layer (protocol)<br />

Sealing Current - Unlike telegraphy, teletypewriter <strong>and</strong> POTS lines,<br />

most digital lines (such as ISDN) use a voltage rather than current<br />

mode of operation. Sealing Current allows a controlled amount of<br />

current to be passed through a telecom circuit for purposes of<br />

"healing" damage caused by corrosion. Bellcore specifies sealing<br />

current on the ISDN U interface.<br />

SEASTRAT - sealift strategic contingency planning system<br />

SEAT - Seat Management (GSA/FTS)<br />

sec - section<br />

SEC - Software Engineering Center at Fort Monmouth, New Jersey.<br />

Secam - System Electronique Couleur Avec Memoire<br />

SECDEF - Secretary of Defense<br />

SECOM - Software Engineering Cost Model<br />

SEE - software engineering environment<br />

SEE - softcopy exploitation system<br />

SEGAT - secure gateway<br />

SEI - Software Engineering Institute<br />

SEI - specific emitter identification<br />

SEL - secure electronic transactions<br />

SEL - select<br />

SELCALL - selective call<br />

Selected Path - User-specified path for a call.<br />

SEM - st<strong>and</strong>ard electronic module<br />

SEM - Service Extension Module<br />

SEMA - special electronic mission aircraft<br />

SEN - Small Extension Node<br />

SENS - small extension node switch<br />

Page 88 of 106<br />

SEOC - systems engineering operations center<br />

SEP - Signal Entry Panel<br />

SEPG - Software Engineering Process Group<br />

Serial Port - A device that converts parallel input to serial form,<br />

which is used in data transmission.<br />

Serial Transmission - A method of information transfer in which the<br />

bits comprising a character are sent in sequence, one at a time.<br />

SES - sales emulation system<br />

Session Parameters - Specifies the Operator Interface environment<br />

for a particular operator ID.<br />

SET - secure electronic transaction (protocol)<br />

SET - Secure Encrypted Transaction<br />

SET - software engineering technology<br />

SETA - systems engineering <strong>and</strong> technical assistance<br />

SETAMS - systems engineering, technical assistance, <strong>and</strong><br />

management services<br />

SEVAS - secure voice access system<br />

SEVMS - security enhanced virtual memory system<br />

SEW - scientific engineering workstation<br />

SEW - Space, Electronic Warfare<br />

SF - single frequency<br />

SF - Superframe. A type of Line format supported on T1 circuits. The<br />

Telco determines the line format <strong>and</strong> line encoding of your line.<br />

ESF is the preferred Line Format on T1 circuits. See Line Format.<br />

SF - store <strong>and</strong> forward or primary/connected RI<br />

SFAF - st<strong>and</strong>ard frequency action format<br />

SFi - spectral composition<br />

SFOB - special forces operating base<br />

SFQL - structured full-text query language<br />

SFT - system fault tolerance<br />

SFUG - security features user’s guide<br />

SFW - sensor fuzed weapons<br />

SG - supergroup<br />

SGDF - supergroup distribution frame<br />

SGDSA - Shadow Global Directory System Agent<br />

SGEN - signal (system) generator<br />

SGL - single<br />

SGLS - space-ground link subsystem<br />

SGML - St<strong>and</strong>ard Generalized (general) Markup Language<br />

SGT - Sergeant<br />

SHA - secure hash algorithm<br />

SHADE - shared data environment<br />

SHARES - Shared Resources for High Frequency Radio Program<br />

SHD - special h<strong>and</strong>ling designator<br />

Shelf - A shelf is a mechanical assembly that houses cards <strong>and</strong> a<br />

backplane.<br />

SHF - super high frequency<br />

Shielding - A means of controlling EMI from electronic components.<br />

Shockwatch Indicators - Devices used during shipping to indicate<br />

whether the rated G-force (25-50 Gs) was exceeded during<br />

shipping.

---

SHS - secure hash st<strong>and</strong>ard<br />

SHTU - simplified h<strong>and</strong>held terminal unit<br />

SI - service interval<br />

SI - special intelligence<br />

SIA - Semiconductor Industry Association<br />

SIB - system interface bus<br />

SIC - st<strong>and</strong>ard industrial code<br />

SICPS - St<strong>and</strong>ard Integrated Comm<strong>and</strong> Post System<br />

SICPS - St<strong>and</strong>ardized Integrated Comm<strong>and</strong> Post Shelter<br />

SID - secondary imagery dissemination<br />

SID - semantic identifiers<br />

SID - serial input data<br />

SID - station ID<br />

SIDF - System Independent Data Format (Association)<br />

SIDR - Secure Intelligence Data Repository<br />

SIDS - secondary imagery dissemination system<br />

SIDT - store interrupt descriptor table<br />

SIE - St<strong>and</strong>ards Improvement Executives<br />

SIE - systems integration environment<br />

SIF - software integration facility<br />

SIG - special interest group<br />

SIG - signal<br />

SIGC2 - signal comm<strong>and</strong> <strong>and</strong> control<br />

SIGCEN - signal Center<br />

SIGINT - signal intelligence<br />

Signal Trace - This comm<strong>and</strong> is used to record all the signaling<br />

information (in a trace buffer) carried by the A-B bits relative to a<br />

specified port.<br />

Signaling System Number 7 - Refers to the set of CCITT<br />

recommendations Q.701 through Q.741. Signaling System<br />

Number 7 is generally recognized as the common-channel<br />

signaling method used in an Integrated Services Digital Network<br />

(ISDN).<br />

SIGO - signal officer<br />

SIGSEC - signals security<br />

SII - system internal interface<br />

SIJ - signal initiated jamming<br />

Silence - Suppression - See Statistical Multiplexing<br />

SILO - signal intercept from low orbit<br />

SILS - st<strong>and</strong>ard for interoperable LAN security<br />

SIM - sensor interaction model<br />

SIM - subscriber identity modules<br />

SIMD - single instruction, multiple data<br />

SIMLM - Single Integrated Medical Logistics Manager<br />

SIMMS - single inline memory modules<br />

SIMNET - simulation network<br />

SIMO - Systeme Integration Management Office<br />

SINAD - signal+noise+distortion noise+distortion<br />

SINCGARS - Single-Channel Ground <strong>and</strong> Airborne Radio System<br />

SINS - state-wide integrated narcotics system<br />

Page 89 of 106<br />

SIO - serial input/output<br />

SIO - Special Information Operations (DOD)<br />

SIOP - Single Integrated Operational Plan<br />

SIOP-ESI - Single Integrated Operational Plan-extremely sensitive<br />

information<br />

SIP - system improvement plan<br />

SIP - Session Initiation Protocol<br />

SIPR - Secret Internet Protocol Router<br />

SIPRNET - Secret Internet Protocol Router Network<br />

SIR-C - space imaging radar C<br />

SIRC - security incident response capability<br />

SIRFC - suite of integrated radar frequency countermeasures<br />

SIRST - Shipboard Infra-Red Search <strong>and</strong> Track<br />

SISS - Subcommittee on Information Systems Security<br />

SITTEMPS - situation templates<br />

SIVVR - Software Independent Verification <strong>and</strong> Validation Report<br />

SL - subscriber line<br />

SLA - service level agreement<br />

SLAR - side-looking airborne radar<br />

Slash Comm<strong>and</strong>s - Expert mode comm<strong>and</strong>s that perform Operator<br />

Interface comm<strong>and</strong>s more quickly.<br />

SLC - submarine laser communications<br />

SLC - subscriber line charge<br />

SLC - subscriber loop carrier<br />

SLC-96 - A Subscriber Loop Carrier Circuit system manufactured by<br />

AT&T (now Lucent). SLC-96 has its own version of T1 framing<br />

between it <strong>and</strong> the CO. This interface is the Bellcore TR-008 or<br />

the newer GR-303 interface which are specialized versions of T1<br />

intended to allow transparent transport of analog features such as<br />

Caller ID, Call Waiting, etc.<br />

SLCM - sea launched cruise missile<br />

SLCSE - software life cycle support environment<br />

SLCT - similar line control terminal<br />

SLD - system link designator<br />

SLES - single line entry system<br />

SLGR - small, lightweight global positioning system receiver (GPS)<br />

SLIC - system-licensed internal code<br />

SLIC - 1. Subscriber Line Interface Circuit, see Line Card. 2. The<br />

equipment used with the AT&T (Lucent) SLCC Subscriber Loop<br />

Carrier Circuit, a system used to multiplex a number of subscriber<br />

loops onto a single circuit to reduce fixed costs.<br />

SLIP - (Serial Line Interface Protocol) - SLIP software allows Internet<br />

Protocol, normally used on Ethernet, to be used over a serial line<br />

(e.g., an RS-232 serial port connected to a remote access<br />

modem).<br />

SLM - subscriber list management<br />

SLOC - software lines of code<br />

SLP - Service Logic Program<br />

SLP - Service Location Protocol<br />

SLSI - super large-scale integration<br />

SLV - slave<br />

SM - service message

---

SM - system management<br />

SMART-T - Secure Mobile Antijam Reliable Terminal - Tactical<br />

SMB - server message block<br />

SMCS - satellite mission control subsystem<br />

SMD - st<strong>and</strong>ard microcircuit drawing<br />

SMD - surface mounted device<br />

SMD - switch mux/demux<br />

SMDPS - strategic mission data preparation system<br />

SMDS - (Switched Megabit Data Service) - A connectionless highspeed<br />

data transmission service that provides wide area LAN<br />

connectivity through the public telephone network.<br />

SMF - system management function<br />

SMG - secure mail guard<br />

SMI - Soldier Machine Interface<br />

SMI - structure of management information<br />

SMIB - security management information base<br />

SMIF - st<strong>and</strong>ard mechanical interface<br />

SMM - system management mode<br />

SMP - symmetric multiprocessing<br />

SMPC - shared memory parallel computer<br />

SMR - specialized mobile radio<br />

SMRAM - system management r<strong>and</strong>om access memory<br />

SMRI - service message RI<br />

SMRS - specialized mobile radio system<br />

SMS - system-managed storage<br />

SMS - simple (short) message service<br />

SMS - service management station<br />

SMT - surface mount technology<br />

SMTP - Simple Mail Transport Protocol<br />

SMTS - space <strong>and</strong> missile tracking system<br />

SMU - system management utility<br />

SMU - Switch Multiplex Unit<br />

SMUX - smart multiplexer<br />

SMX - satellite multiplexer<br />

SN - secondary-nonconnected<br />

SN - SEN net variable<br />

SNA - (System Network Architecture) - An IBM communications<br />

architecture that describes the logical structure, formats,<br />

protocols, <strong>and</strong> operational sequences to transmit information units<br />

through a communications network.<br />

SNAP - Shipboard Non-tactical Automated Program<br />

SNAP - subnetwork access point<br />

SNAP - switched network automated planner<br />

SNCS - secondary net control station<br />

SNI - subscriber network interface<br />

SNIU - secure network interface unit<br />

SNMP - Simple Network Management Protocol<br />

SNOS - silicon nitride oxide semiconductor<br />

SNPA - subnetwork point of attachment<br />

Page 90 of 106<br />

SNR - signal to noise ratio<br />

SNS - secure network server<br />

SNS - secondary node switch<br />

SOA - Start of Authority<br />

SOAC - Signal Officer Advanced Course<br />

SOAP - simple object access protocol<br />

SOBC - Signal Officer Basic Course<br />

SOC - Special Operations Comm<strong>and</strong><br />

SOCCE - special operations comm<strong>and</strong> <strong>and</strong> control element<br />

SOCEUR - Special Operations Comm<strong>and</strong> Europe<br />

SOCOM - special operations comm<strong>and</strong><br />

SOCPAC - Special Operations Comm<strong>and</strong> Pacific<br />

SOCRATES - Special Operations Comm<strong>and</strong> Research, Analysis,<br />

<strong>and</strong> Threat Evaluation System<br />

SOCS - Subcommittee on Computer Security<br />

SOE - st<strong>and</strong>ard operating environment<br />

SOF - special operations forces<br />

SOF-IV - Special Operations Forces-Intelligence Vehicle<br />

SOF - Special Operations Forces<br />

SOFAMPS - SOF advanced mission planning system<br />

SOFPARS - SOF operations force planning <strong>and</strong> rehearsal system<br />

SOFTACS - special operations forces tactical assured connectivity<br />

system<br />

SOFTECS - SOF technical control system<br />

SOI - Signal operating instructions<br />

SOIC - small outline integrated circuits<br />

SOICS - special operations improved cryptographic system<br />

SOIS - Special Operations Intelligence System<br />

SOJ - st<strong>and</strong>-off jammer<br />

SOL - simulation oriented language<br />

SOM - system object model<br />

SOM - Start of Message<br />

SONET - (Synchronous Optical Network) - A fiber optic st<strong>and</strong>ard.<br />

The basic signal operates at 51.840 Mbps. The information<br />

payload can be one DS3 datastream.<br />

SONOS - silicon oxide nitride oxide semiconductor<br />

SOP - st<strong>and</strong>ing operating procedure<br />

SORDAC - Special Operations Research, Development <strong>and</strong><br />

Acquisition Center<br />

SOSC - Systems Operational Support Center<br />

SOSUS - sound surveillance system<br />

SOT - start of text<br />

SOTA - Signals Intelligence Operational Tasking Authority<br />

SOTAS - St<strong>and</strong>-off target acquisition system<br />

SOTVS - special operations tactical video system<br />

SOUTH - US Southern Comm<strong>and</strong><br />

SOUTHAF - Air Force component, US Southern Comm<strong>and</strong><br />

SOUTHCOM - US Southern Comm<strong>and</strong><br />

SP - search pattern

---

SP - security protocol<br />

SP - signal processor<br />

SP - start point<br />

SP - security preferred, sound power<br />

SP - space<br />

SP/WP - smart push/warrior pull<br />

SP4 - security protocol layer 4<br />

SPA - software process assessment<br />

Space - A logical 0 condition on a data circuit.<br />

SPADATS - space tracking detection system<br />

SPAG - St<strong>and</strong>ards Promotion <strong>and</strong> Application Group (EC)<br />

Span - (Spanline) - A full duplex digital transmission line between<br />

two digital facilities, such as between a carrier facility <strong>and</strong> the<br />

customer installation.<br />

Span-Mode - TRK-3 - A TRK-3 module installed in span-mode<br />

connects directly to the transmission line or span (consists of a<br />

front card <strong>and</strong> an interface card). Proprietary <strong>and</strong> clear channel<br />

bundles are installed on span-mode cards. Also see T<strong>and</strong>em-<br />

Mode TRK-3.<br />

SPARC - scalable processor architecture<br />

SPB - Security Policy Board<br />

SPC - small peripheral controller<br />

SPC - statistical process control<br />

SPD - speed<br />

SPDVB - Special Device Controller B<br />

SPDVC - Special Device Controller C<br />

SPDVD - remote special devices demultiplexer<br />

SPE - software product evaluation<br />

SPEC - system performance evaluation cooperative<br />

SPECAT - special category<br />

SPEDE - system procurement by electronic data exchange<br />

SPEED - Systems Planning, Engineering, <strong>and</strong> Evaluation Device<br />

SPF - shortest path first<br />

SPI - service provider interface<br />

SPI - software process improvement<br />

SPICE - software rrocess improvement <strong>and</strong> capability determination<br />

SPID - Service Profile IDentifier- On the "National ISDN", "AT&T<br />

Custom PMP" <strong>and</strong> "Custom DMS" ISDN protocols, the Telco<br />

switch must receive correct SPID(s) from the CPE before it will<br />

allow access to ISDN service. Intended to allow multiple<br />

configurations on ISDN lines shared among different types of<br />

CPE equipment. While your SPID may include your area code<br />

<strong>and</strong> telephone number, the SPID is distinct from the telephone<br />

number. Custom PTP <strong>and</strong> ETS 300 protocols do not require a<br />

SPID.<br />

SPIF - Security Policy Information File<br />

SPIRE - spatial paradigm for information retrieval <strong>and</strong> exploration<br />

SPIRIT - Special Purpose Integrated Remote Intelligence Terminal<br />

SPIRITS - special in-b<strong>and</strong> radiance imaging of targets <strong>and</strong> scenes<br />

SPLX2W - simplex 2-wire<br />

SPM - security policy model<br />

SPOOL - simultaneous peripheral operations on line<br />

SPP - scaleable parallel processor<br />

Page 91 of 106<br />

SPP - sequenced packet protocol<br />

SPP - SPEED path profiler<br />

SPRITE - signal processing in the element<br />

SPS - software product specification<br />

SPS - st<strong>and</strong>ard procurement system<br />

SPSC - system planning <strong>and</strong> system control<br />

SPT - sectors per track<br />

spt - support<br />

SPW - signal processing workstation<br />

SPX - sequenced packer exchange<br />

SPX Network Processor - A high-end statistical multiplexer using<br />

packet technology to establish virtual circuits connecting data<br />

devices in a wide-area network.<br />

SQA - software quality assurance<br />

SQAP - software quality assurance plan<br />

SQC - statistical quality control<br />

SQE - signal quality error<br />

SQL - structured query language<br />

SQP - Software Quality Program<br />

SQPP - Software Quality Program Plan<br />

SR - security required<br />

SR - secondary-remote<br />

SRA - subregistration authority<br />

SRAM - static r<strong>and</strong>om access memory<br />

SRB - Software Review Board<br />

SRC - st<strong>and</strong>ard requirements code<br />

SRCU - securable remote control unit<br />

SRDM - (Subrate Data Multiplexing) - A subrate data multiplexer<br />

divides a DS0 (64 kbps) into a number of subrate (64 kbps)<br />

channels.<br />

SRI - surveillance, reconnaissance <strong>and</strong> intelligence<br />

SRM - security reference monitor<br />

SRM - system resource manager<br />

SRN - software release notice<br />

SRN - single row nest<br />

SRO - sharable <strong>and</strong> read only<br />

SRPI - server-requester programming interface<br />

SRS - software requirements specification<br />

SRT - source routing transparent<br />

SRT - Shipboard Receive Terminal<br />

SRV - SEN rekey variable<br />

SRWBR - short range wideb<strong>and</strong> radio<br />

SS - signaling system<br />

SS - spread spectrum<br />

SS-4 - selective signaling voice conference system<br />

SS - Switch Supervisor<br />

SSA - serial storage architecture<br />

SSA - servicing security agency<br />

SSA - software support activity

---

SSA - System Security Administrator<br />

SSA - system security analysis<br />

SSAA - system security authorization agreement<br />

SSAP - source service access point<br />

SSB - single sideb<strong>and</strong><br />

SSC - (Secondary Signaling Channel) - 1. SSC is a userconfigurable<br />

alternative to Signaling Channel Link Protocol<br />

(SCLP) for carrying traditional internodal signaling <strong>and</strong> IP<br />

Packets. Because SSC can carry internodal traffic, it can be used<br />

to replace or supplement SCLP functionality. SSC can be used on<br />

an as needed basis to provide extra b<strong>and</strong>width for increased<br />

internodal traffic. See also SCLP. 2. SIPRNET support center<br />

SSC - SIPRNET support center<br />

SSCOP - service specific connection-oriented protocol<br />

SSCS - st<strong>and</strong>ard satellite control systems<br />

SSDS - ship self-defense system<br />

SSE - system security engineering<br />

SSEE - ship’s signals exploitation equipment<br />

SSEM - system <strong>and</strong> server evaluation model<br />

SSF - software support facility<br />

SSGA - system support gate array<br />

SSH - secure shell<br />

SSI - small scale integration<br />

SSI - synchronous service window<br />

SSI - st<strong>and</strong>ing signal instructions<br />

SSIMP-LR - Soldier/Sailor Interface Management Program -<br />

Local/Remote<br />

SSL - secure sockets layer<br />

SSL - st<strong>and</strong>ard security label<br />

SSM - System/Security Manager<br />

SSMA - spread spectrum multiple access<br />

SSME - spread spectrum modulation equipment<br />

SSMI - simplified soldier-machine interface<br />

SSMP - System Safety Management Plan<br />

SSMS - Signal intelligence manpack system<br />

SSMS - single shelter message switch<br />

SSN - switched service network<br />

SSO - Special Security Officer<br />

SSP - single source processor<br />

SSR - software specification review<br />

SSRA - system safety risk assessment<br />

SSRP - simple server redundancy protocol<br />

SSRR - strict source <strong>and</strong> record route<br />

SSRT - Sub Surface Receive Terminal<br />

SSS - system segment specification<br />

SSS - Single Shelter Switch<br />

SSSA - software systems support activity<br />

SST - spread-spectrum technology<br />

ST - synchronous transport<br />

ST - student text<br />

Page 92 of 106<br />

ST - reference points in ISDN interface<br />

ST - send timing<br />

ST&E - security test <strong>and</strong> evaluation<br />

STA - system tape A<br />

STA - CLK station clock<br />

STA - ID station identification number<br />

STACCS - St<strong>and</strong>ard Theater Army Comm<strong>and</strong> <strong>and</strong> Control System<br />

STAIRS - storage <strong>and</strong> information retrieval system<br />

STAMIS - St<strong>and</strong>ard Army Management Information System<br />

STAMPS - st<strong>and</strong>-alone message processing system<br />

STANAG - St<strong>and</strong>ardization Agreement<br />

STAR - satellite tracking using ambient radio frequency<br />

STAR - System Threat Analysis Report<br />

Star Topology - The point-to-point wiring of network elements to a<br />

central node.<br />

STAR-T - Super (High Frequency Tri-b<strong>and</strong>) Advanced Range<br />

Extension Terminal<br />

STAR-T - SHF Tri-B<strong>and</strong> Advanced Range Extension Terminal<br />

STARS - software technology for adaptable, reliable systems<br />

Start Bit - The first element in each character in asynchronous<br />

transmission.<br />

STARTEX - start of exercise<br />

Station - NDI nondevelopmental item<br />

Station Clock - An external device that receives a timing signal from<br />

an external source <strong>and</strong> passes it through the USD to the node. It<br />

provides a 4 kHz reference frequency to the node <strong>and</strong> an external<br />

frequency reference.<br />

Station Line - A telephone circuit from a PBX to a telephone on that<br />

PBX. Since this is a telephone-to-switch connection it is<br />

considered to be a"line". See Line <strong>and</strong> Trunk.<br />

Statistical Multiplexer - Dynamically allocates trunk capacity to<br />

active input channels only, allowing the connection of more<br />

devices than with traditional multiplexers.<br />

Statistical Multiplexing - A method of improving effective b<strong>and</strong>width<br />

of a Telco channel. Statistical Multiplexing takes advantage that<br />

there are typically many pauses in a conversation. By taking<br />

advantage of this fact, <strong>and</strong> not sending the pauses, improvements<br />

in efficiency can be made. Also referred to as silence<br />

suppression. See Circuit Switched.<br />

STATS - statistics<br />

Status Level - Restricts the amount of access that an operator has<br />

to the network <strong>and</strong> the tasks on the network that the operator can<br />

perform. The Operator Interface has four status levels or levels of<br />

security.<br />

STAWRS - simplified tax <strong>and</strong> wage reporting system (Treasury)<br />

STC - SHAPE Technical Centre<br />

STC - Software Technology Center<br />

STC - Secondary Traffic Channel<br />

STD - subscriber trunk dialing<br />

STD - st<strong>and</strong>ard<br />

STDIS - space division timing distributor<br />

STDM - statistical time division multiplexer<br />

STDMA - self-organizing time division multiple access<br />

STDN - secure tactical data network

---

STE - secure telephone equipment<br />

STE - secure terminal equipment<br />

STE-R - remote controllable secure terminal equipment<br />

STEL - secure telephone<br />

STEP - st<strong>and</strong>ard for the exchange of product<br />

STEP - St<strong>and</strong>ardized Tactical Entry Point<br />

STGEN - space division matrix timing generator<br />

STI - summing telephone interface<br />

STIC - St<strong>and</strong>ard Interface Controller<br />

STIG - Security Technical Implementation Guide<br />

STIISP - Scientific <strong>and</strong> Technical Intelligence Information Services<br />

Program<br />

STK - strategic-to-tactical KEK<br />

STM - synchronous transfer mode<br />

STN - software transfer notice<br />

STO - science <strong>and</strong> technology objectives<br />

STO - special technical operations<br />

STO - store<br />

Stop Bit - The last element of a character in asynchronous<br />

transmission.<br />

STOW - Synthetic Theater of War<br />

STP - shielded twisted pair<br />

STP - signal transfer point<br />

STP - software test plan<br />

STP - step<br />

STR - software test report<br />

STRADIS - structured analysis, design <strong>and</strong> implementation of<br />

information system (NATO)<br />

STRADS - strategic deployment system<br />

STRATCERT - Strategic Comm<strong>and</strong> computer emergency response<br />

team<br />

STRED - St<strong>and</strong>ard Tactical Receive Equipment Display<br />

STS - Subcommittee on Telecommunications Security<br />

STS - (St<strong>and</strong>ard Shelf) - A mechanical assembly (chassis)<br />

containing the feature <strong>and</strong> common equipment modules plus the<br />

Bus Terminator Interface in a Promina 800. This shelf consists of<br />

12 card slots <strong>and</strong> power supplies.<br />

STS - SSIMP-LR Trainer Software<br />

STS-3c - synchronous transport signal 3 concatenated<br />

STSVT - strategic/tactical secure voice terminal<br />

STU - secure telephone unit<br />

STU - secure terminal unit<br />

STU-III - Secure Telephone Unit III<br />

STX - strategic-to-tactical TEK<br />

SUB - subscriber<br />

Subrate - Any data port speed that is less the 64 kbps.<br />

Subrated - Analogous to DS0 channels on a DS1 data stream. A<br />

DS3 data stream can be subrated into DS1 data streams using<br />

M13. The Promina uses a non-subrated (or proprietary format)<br />

downstream for T3. Third-party equipment will not be able to<br />

separate circuit information out of the data stream payload.<br />

SUBS - subscriber(s)<br />

Page 93 of 106<br />

Subscriber - The customer of a Telecommunications company. This<br />

term dates back to when a local Telephone Company was formed<br />

at the specific request of a group of customers who agreed in<br />

advance to "subscribe" to the service.<br />

SUM - software user’s manual<br />

SUPCOM - support comm<strong>and</strong><br />

SUPE - supervisory comm<strong>and</strong>s program<br />

Superframe - See SF<br />

Supervisor - Software - Software in the processor module that<br />

controls <strong>and</strong> manages the node.<br />

SUPP - supplement<br />

supv - supervisor<br />

SUR - small unit radio<br />

SURTASS - surveillance towed array sensor system<br />

SURVIAC - Survivability/Vulnerability Information Analysis Center<br />

SVAR - S variable<br />

SVC - switched virtual circuit<br />

SVD - simultaneous voice <strong>and</strong> data processor<br />

SVGA - super video graphics array<br />

SVI - st<strong>and</strong>ardized virtual interface<br />

SVLTU - service line termination unit<br />

SVM - secure voice module<br />

SVP - software validation plan<br />

SVS - secure voice system<br />

SVT - secure voice terminal<br />

SVTC - secure video teleconferencing<br />

SW - software<br />

SW - switch<br />

SWA - Southwest Asia<br />

SWAN - satellite wide area network<br />

SWAN - shipwide area network<br />

SWBD - switchboard<br />

SWC - strike warfare coordinator<br />

SWDMX - Switch DEMUX, Switch Demultiplexer<br />

SWF - Software FORTEZZA<br />

SWIT - software integration <strong>and</strong> test<br />

Switch - Telephone company switching device which "makes the<br />

connection" when you place a call. Modern switches are<br />

specialized computers. ISDN service is provided from a "Digital"<br />

switch, most commonly an AT&T model "5ESS", Northern Telcom<br />

model "DMS-100", or Siemens model "EWSD". The switch, <strong>and</strong><br />

related software running on it, will determine which ISDN<br />

protocol(s) will be available to customers connected to it. See also<br />

PBX.<br />

Switched Circuit - A channel which is not permanent in nature, but<br />

is connected through a switching device of some kind. The<br />

switching device allows a switched circuit to access many other<br />

switched circuits (the usual "dial up" type of telephone channels).<br />

Once the connection is made however, the complete capacity of<br />

the channel is available for use. As opposed to a Dedicated<br />

Circuit.<br />

Switched-56 - A type of digital telephone service developed in the<br />

mid-1980's which allows dialing on a single 56Kbps line. Each<br />

Switched-56 circuit has 1 or 2 copper wire-pairs associated with it.<br />

Switched-56 is being rapidly replaced with ISDN, which is<br />

cheaper <strong>and</strong> more flexible. See also CSU/DSU.

---

Switching - The ability to create or change the path of a<br />

transmission.<br />

SWL - short wavelength<br />

SWMUX - Switch MUX/DEMUX, Switch MUX, Switch Multiplexer<br />

SWOLOP - Sun Workstation On-line Operational Program<br />

SWPS - strategic war planning system<br />

SWS - silly window syndrome<br />

SX - (Switching Exchange) Module - In a Promina 800, this module<br />

provides the switch matrix <strong>and</strong> clocking for the node. It connects<br />

to the SBI, BXI, <strong>and</strong> T3I cards.<br />

SYN - synchronous idle<br />

SYN - synchronization character<br />

SYN - synchronize sequence numbers flag, TCP header<br />

SYNBAD - synthetic battlefield development<br />

SYNC - synchronization<br />

SYNCH - synchronize/synchronization<br />

Synchronous Data - A form of serial data which uses a clock signal<br />

to synchronize the bit stream. SInce, unlike Asynchronous Data,<br />

no start <strong>and</strong> stop bits are use, data throughput is higher than with<br />

asynchronous data. ISDN uses Synchronous data.<br />

Synchronous Transmission - Data transmission in which<br />

synchronization is controlled by timing signals which are<br />

independent of the data signals on the DTE/DCE interface, <strong>and</strong><br />

which are synchronized to a common, or network, reference. A<br />

constant clock speed is maintained between end terminals during<br />

(<strong>and</strong> between) the characters (or groups of characters) being<br />

transmitted; transmission in which the sending <strong>and</strong> receiving<br />

instruments are operating continuously at substantially the same<br />

frequency <strong>and</strong> in which the desired phase relationship may be<br />

maintained by means of correction.<br />

SYNCRX - sync comm<strong>and</strong> receive<br />

SYNCTX - sync comm<strong>and</strong> transmit<br />

SYNTRAN - T3 datastream format with synchronous, subrated T1<br />

data. This is not compatible with the Promina 800.<br />

SYS - system<br />

SYSADMIN - system administration<br />

SYSCON - system control<br />

SYSGEN - system generator<br />

SYSLOG - system log<br />

SYSOP - system operator<br />

T<br />

T-Link - A proprietary Telos 2.048mbps channelized link. This link<br />

uses the DSX-1 electrical protocol <strong>and</strong> has 30 channels at 64kbps<br />

each.<br />

T-Span - A telephone circuit or cable through which a T-carrier runs.<br />

T - trunk key<br />

T - terminated<br />

T1 - A common type of digital telephone carrier widely deployed<br />

within the US, Canada, <strong>and</strong> Japan. Has 24 64Kbps channels<br />

(called DS0’s). The most common framing scheme for T1 "robs"<br />

bits for signaling leaving 56kbps per channel available.<br />

T1 Facility - Bell System terminology for the 1.544 Mbps digital<br />

signal. Usually refers to a transmission facility that carries a DS1<br />

signal. A T1 line is a digital pipeline that carries the T1 signal.<br />

T1 Jackfield - The interface between the T1 facility <strong>and</strong> the trunk<br />

modules.<br />

T1 Network - A telecommunications network that includes T1<br />

circuits, T1 multiplexers or communications resource managers,<br />

<strong>and</strong> network management equipment.<br />

T1 Trunk Module - This module allows a single T1 trunk in DS1<br />

format to connect to the node.<br />

T1 Carrier - A time-division multiplexed transmission method that<br />

usually refers to a line or cable carrying a DS1 signal. The T1-<br />

Carrier permits simultaneously transmission of 24 voice calls at<br />

64 kbps each.<br />

T1 - 1.544 Mbps<br />

T1CEPT - commercial st<strong>and</strong>ard T1 or E1 groups<br />

T1LTU - T1 line termination unit<br />

T3 - Refers to a trunk that carries a DS3 signal.<br />

T3 Trunk Module - This module consists of the hardware, firmware,<br />

<strong>and</strong> software required to connect to <strong>and</strong> control an internodal DS3<br />

span or facility.<br />

T3 - tactical tri-b<strong>and</strong> terminal<br />

TA - target acquisition<br />

TA - Terminal Adapter. The electronic interface between an ISDN<br />

device <strong>and</strong> the NT1. The terminal adaptor h<strong>and</strong>les the dialing<br />

functions <strong>and</strong> interfaces to the user's data equipment as well as to<br />

the NT1 on the "S" or "T" interface.<br />

TAACOM - Theater Army Area Comm<strong>and</strong><br />

TAAD - Theater Air Defense System<br />

TAADS - The Army Authorization Documents System<br />

TAB - theater air base<br />

TAC - terminal access controller<br />

tac - tactical<br />

TAC - CP - tactical comm<strong>and</strong> post<br />

TACACCIS - Transportation Coordinator automated comm<strong>and</strong> <strong>and</strong><br />

control information system<br />

TACAN - tactical control <strong>and</strong> navigation<br />

TACC - tactical air control center<br />

TACCIMS - theater automated comm<strong>and</strong> <strong>and</strong> control information<br />

management system<br />

TACCS - Tactical Army Combat Service Support Computer System<br />

TACFAM - tactical frequency assignment model<br />

TACFAST - Tactical Forward Analyst Support System<br />

TACFEP - tactical front end processor<br />

TACFIRE - Tactical Fire Direction System<br />

TACINTEL - tactical intelligence<br />

TACLAN - tactical local area network<br />

TACLAN/WAN - tactical local area network/wide area network<br />

TACLS - tactical loop signaling<br />

TACO - tactical communications protocol<br />

TACP - tactical air control party<br />

TACREF - tactical reference<br />

TACS - Tactical Air Control System<br />

TACSAT - Tactical Satellite<br />

Page 94 of 106

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TACSATCOM - tactical satellite communication<br />

TACSSCS - tactical Army combat service support computer system<br />

TACTERM - tactical terminal<br />

TACTS - tactical trunk signaling<br />

TAD - telephone answering device<br />

TADIL - tactical data information link<br />

TADIL - tactical digital information link<br />

TADIXS-B - Tactical Data Information Exchange System-B<br />

TADIXS - tactical digital information exchange system<br />

TADL - tactical data link<br />

TADS - tactical air defense system<br />

TADSS - training aids, devices, simulators <strong>and</strong> simulations<br />

TAFIM - Technical Architecture Framework for Information<br />

Management<br />

TAG - TEMPEST advisory group<br />

TAGS - theater air ground system<br />

TAI - targeted area of interest<br />

TAIS - tactical airspace integration system<br />

TAIS - telecommunications & automated information system<br />

TAIS - target architecture <strong>and</strong> implementation strategy<br />

TAM - telephone access module<br />

TAMPS - tactical automated mission planning system<br />

TAMSS - target area meteorological sensor system<br />

T<strong>and</strong>em Switch - A switch which is between two others. It connects<br />

two trunks together. Long distance calls on a LEC line go through<br />

a long distance t<strong>and</strong>em that passes them through to the long<br />

distance provider’s switch.<br />

T<strong>and</strong>em Tie Trunk Switching - When a PBX switch allows a Tie<br />

Line call to dial out of the switch. For example, if switch "A" in<br />

Arkansas has a tie line to switch "B" in Boise, Boise could use the<br />

tie line to make calls from switch "A".<br />

T<strong>and</strong>em-Mode - TRK-3 - A TRK-3 module installed in t<strong>and</strong>em-mode<br />

consists of a front card only. PRC/TMCP bundles are installed on<br />

t<strong>and</strong>em-mode cards. T<strong>and</strong>em-mode cards also process<br />

proprietary bundles when the capacity of the span-mode card is<br />

exceeded. Also see Span-Mode TRK-3.<br />

TAO - Tactical Action Officer<br />

TAOC - Tactical Air Operations Center<br />

TAOM - tactical air operations module<br />

TAP - telephone application processing<br />

TAP - the Army plan<br />

TAPI - telephony applications programming (program) interface<br />

TAPP - Transportable Assemblage Perimeter Protection<br />

TAPS - theater automated planning system<br />

TARE - telegraph automatic relay equipment (NATO)<br />

TARGET - Theater-level analysis replanning graphical execution<br />

toolkit<br />

TARPS - tactical air reconnaissance pod system<br />

TARS - theater airborne reconnaissance system<br />

TAS - target acquisition system<br />

TAS - telephone access server<br />

TAS - timeline analysis system<br />

Page 95 of 106<br />

TASCID - tactical AUTODIN satellite compensation interface device<br />

TASCO - Tactical Automatic Switch Control Officer<br />

TASDAC - Tactical Secure Data Communications<br />

TASI - time-assignment speech interpolation<br />

Tasks - The system software functions as a group of tasks. All tasks<br />

execute independently of one another. In general, a task controls<br />

a single external object (for example, a port or card) or performs a<br />

single function (for example, Network Manager Task). Tasks<br />

communicate with each other via messages.<br />

TASO - terminal area security officer<br />

TASR - tactical automated situation receiver<br />

TASS - tactical automated security system (USAF)<br />

TAU - Tactical Access Unit<br />

TAWDS - transportable automated weather distribution system<br />

TAXI - transparent asynchronous transceiver/receiver interface<br />

TB - terabyte<br />

TBD - to be determined<br />

TBM - tactical battle management<br />

TBM - theater battle management<br />

TBMCS - Theater Battle Management Core Systems<br />

TBSL - to be supplied later<br />

TBus - Transport bus used to carry real-time user data.<br />

TBus1 - The TBus connection provided by the primary (main) PICA<br />

ASIC. This is the TBus/PBus on the shelf on which the T3 module<br />

resides.<br />

TBus2 - The TBus connection provided by the secondary (cascade)<br />

PICA ASIC. This is the direct connection with the SX module.<br />

TC - transmission control<br />

TC - technical control<br />

TC - telemetry combiner<br />

TCAC - Tactical Control <strong>and</strong> Analysis Center<br />

TCAIMS - transportation coordinators AI movement system<br />

TCAS - traffic alert collision avoidance system<br />

TCB - trusted computing base<br />

TCBL - tactical cell bearing link<br />

TCC - Tactical Comm<strong>and</strong> Center<br />

TCC - transmission control code<br />

TCCC - Theater C4 Coordination Center<br />

TCCC - terrestrial critical control circuits<br />

TCCC - Theater Communication Coordination Center<br />

TCCS - theater comm<strong>and</strong> <strong>and</strong> control system<br />

TCCS - transit case circuit switch<br />

TCDN - tactical communications distribution node<br />

TCF - technical control facility<br />

TCG - Telemetry Combiner/Generator<br />

TCIM - tactical communications interface module<br />

TCIN - tactical communications information network<br />

TCIS - Tactical Communications Interface Software<br />

TCL - tool comm<strong>and</strong> language<br />

TCLTU - twenty hertz line termination unit

---

TCLTU - twenty Hertz/contact closure<br />

TCM - trellis-coded modulation<br />

TCMO - Theater COMSEC Management Office<br />

TCOS - tactical combat operations system<br />

TCP - tactical computer processor<br />

TCP - Tactical Cryptologic Program<br />

TCP - terminal control processor<br />

TCP - Transmission Control Protocol<br />

TCP/IP - Transmission Control Protocol/Internet Protocol<br />

TCS - treasury communications system (Was CDN)<br />

TCS - trusted computer system<br />

TCS - Transportable Communications System<br />

TCS - thermal control subsystem<br />

TCSEC - trusted computer system evaluation criteria<br />

TCSN - tactical circuit switch network<br />

TCT - tactical computer (comm<strong>and</strong>er’s) terminal<br />

TCT - tactical communications terminal<br />

TCTC - transmit cipher text clock<br />

TCTS - tactical combat training system<br />

TCU - transportable computer unit<br />

TCU - terminal control unit<br />

TD - Transmit Data. Data coming from the DTE towards the DCE or<br />

network. Also, a light on a modem or CSU/DSU which lights to<br />

indicate presence of this signal.<br />

TD - timing distributor<br />

TD - telemetry decombiner<br />

TDA - tactical decision aid<br />

TDAC - tactical data acquisition <strong>and</strong> correlation<br />

TDC - tactical display console<br />

TDC - tactical document copier<br />

TDC - Theater Deployable Communications<br />

TDD - tactical display device<br />

TDD - Telecommunications device for the deaf<br />

TDD - time division duplex<br />

TDDS - trap data dissemination system<br />

TDE - terminal display editor<br />

TDF - tactical digital facsimile<br />

TDFLC - Time-Division Fault Collector<br />

TDI - trusted database interpretation<br />

TDIG - time division interface group<br />

TDIGM - time division interface group modified<br />

TDIM - time division interface module<br />

TDIST - tactical digital interswitch trunk<br />

TDLS - time division loop speed<br />

TDM - (Time Division Multiplexing) - The second basic method of<br />

multiplexing. Unlike frequency division multiplexing, time division<br />

multiplexing works only with digital signals.<br />

TDMA - time division (domain) multiple access<br />

TDMF - Time Division Memory Function<br />

Page 96 of 106<br />

TDMF - time division matrix function<br />

TDMM - Time-Division Memory Module<br />

TDMS - terminal display management system<br />

TDMX - time division matrix<br />

TDMX - time division multiplexer<br />

TDN - tactical data network<br />

TDN - tactical data network tech technical<br />

TDP - tactical data processor<br />

TDPI - Treasury Distributed Processing Infrastructure<br />

TDPPM - time dithered pulse position modulation<br />

TDR - time domain reflectometry<br />

TDRSS - tracking <strong>and</strong> data relay satellite system<br />

TDS - tactical data system<br />

TDS - time division subscriber<br />

TDSG - Time-Division Switching Group<br />

TDSGM - Time-Division Switching Group, Modified<br />

TDSR - transmitter data service request<br />

TDSSCS - Tactical Defense Special Security Communications<br />

System<br />

Te - TED extension key<br />

TEAM - threat engagement analysis model<br />

TECH - technical<br />

TECHCON - technical control<br />

TECHEVAL - technical evaluation<br />

TECNET - technical network<br />

TECS - treasury enforcement communications system<br />

TED - trunk encryption device<br />

TEDS - tactical environmental data server<br />

TEED - tactical end-to-end encryption device<br />

TEI - TED extension initialization<br />

TEK - trunk encryption key<br />

Telco - (Telephone Company) Rack - A st<strong>and</strong>ard shelf-mounting<br />

rack provided with the 24-slot Promina 400.<br />

Telco - Telephone Company. Your local telephone service provider.<br />

In the 21st century you generally have a choice of Telcos if you<br />

are a business in a major metropolitan area in the USA.<br />

Competition is coming to the Telecom industry around the world.<br />

TELCO - telephone company<br />

Telecommunications - A term encompassing both voice <strong>and</strong> data<br />

communications in the form of coded signals over media.<br />

Telephony - Generic term describing voice communications.<br />

TELINT - Telemetry Intelligence<br />

TELNET - Telnet Protocol<br />

Telnet - This comm<strong>and</strong> establishes a user interface with a remote<br />

system using the Telnet protocol.<br />

TEM - Trunk Encryption Module<br />

TEM - trunk encryption module<br />

TEMP - Test <strong>and</strong> Evaluation Master Plan<br />

temp - temporary

---

TEMPEST - telecommunications <strong>and</strong> electrical machinery protected<br />

from emissions <strong>and</strong> spurious transmissions<br />

TEMPEST - technical electro-magnetic pulse emanation suppression<br />

techniques<br />

TEMPEST - transient electro-magnetic pulse emanation st<strong>and</strong>ards<br />

techniques<br />

TEMPO - telecommunications modernization project (DOD)<br />

TENCAP - Tactical Exploitation of National Capabilities<br />

TEP - tactical electronic processor<br />

TEP - task execution plan<br />

TERCOM - terrain contour matching<br />

TERM - terminal<br />

Terminal - Adapter - See TA<br />

TERN - subscriber net variable<br />

TERPES - tactical electronic reconnaissance processing <strong>and</strong><br />

evaluation system<br />

TERS - tactical event reporting system<br />

TERV - subscriber rekey variable<br />

TES - tactical engagement simulator<br />

TESS - tactical environmental support system<br />

TETRA - trans-European trunked radio<br />

TEWS - tactical electronic warfare system<br />

TFA - transparent file access<br />

TFCC - tactical flag comm<strong>and</strong> center<br />

TFDD - text file device driver<br />

TFG - telecommunications functional group<br />

TFM - trusted facility manual<br />

TFOCA - thin fiber optic cable assembly<br />

TFOPS - trillion floating-point operations per second<br />

TFS - technical foundation server<br />

TFT - thin-film transistor<br />

TFTP - Trivial File Transfer Protocol<br />

TG - trunk group<br />

Tg - TED gateway key<br />

TGASC - timing generator automatic signaling card<br />

TGBR - theater ground based radar<br />

TGC - Trunk Group Cluster<br />

TGC - test generator controller<br />

TGEN - table generate<br />

TGI - transaction generated information<br />

TGI - TED gateway initialization<br />

TGM - Trunk Group Multiplexer<br />

TGM - transmission group module<br />

TGMOW - transmission group module/orderwire<br />

TGRT - Transportable Ground Receive Terminal<br />

THAAD - Theater High Altitude Air Defense<br />

THD - total harmonic distortion<br />

THF - time horizon to failure<br />

THHR - tactical h<strong>and</strong>held radio<br />

Page 97 of 106<br />

THMT - tactical high mobility terminal<br />

THR - transmit holding register<br />

Throughput - The speed at which data is output from a multiplexer.<br />

thru - through<br />

THSDN - Tactical High Speed Data Network<br />

THz - teraHertz<br />

TI - technical intelligence<br />

TI - Tactical Internet<br />

TI - tactical Internet management system<br />

Ti - TED initialization key<br />

TI - trunk interface<br />

TIA - Telecommunications Industry Association<br />

TIA - Tactical Interface Adapter<br />

TIARA - tactical intelligence & related activities<br />

TIB - tactical information base (bulletin)<br />

TIBS - tactical information broadcast system (Service)<br />

TIC - Technology Integration Center<br />

TIDP - Technical Interface Design Plan<br />

TIE - time interval error<br />

Tie Line - See Tie Trunk<br />

Tie Trunk - A Trunk between two PBXs. Note, a tie line is a<br />

dedicated circuit, not a switched circuit. See Trunk<br />

TIF - tagged image file<br />

TIFF - tagged image file format<br />

TIGER - topographically integrated geographic encoding <strong>and</strong><br />

referencing<br />

TIGRTP - tactical intelligence guide to regional threat platforms<br />

TIIAP - Telecommunications <strong>and</strong> Information Infrastructure<br />

Assistance Program<br />

TIM - telecommunications industry mobilization<br />

TIM - technical integration manager<br />

TIM - transmission interface module<br />

TIM - trunk interface multiplexer<br />

TIMA - tool inventory management application<br />

TIMBT - Built In Test Control Card<br />

TIMS - tactical internet modeling <strong>and</strong> simulation<br />

TIMS - theater information management system<br />

TIMS - transmission impairment measurement set<br />

TIMS - tactical Internet<br />

TIMTG - timing generator<br />

TINA-C - Telecommunications Information Networking Architecture<br />

Consortium<br />

TINA - tactical Internet network agent<br />

TINS - thermal imaging navigation set<br />

TIP - Tactical Intelligence Program<br />

TIP - Telecommunications Improvement Program<br />

TIP - terminal interface processor<br />

TIP - theater injection point

---

TIPHON - telecommunications <strong>and</strong> Internet protocol harmonization<br />

over networks<br />

TIREM - terrain-integrated rough-earth model<br />

TISD - tactical Internet system description<br />

TISS - thermal imaging sensor system<br />

TIU - (trunk) trusted interface unit<br />

TIU - TSSR Interface Unit<br />

TIW - Transnational Infrastructure Warfare<br />

TJTN-CCB - Theater Joint Tactical Networks Configuration Control<br />

Board<br />

TLC - traffic load control<br />

TLD - top level domain (Internet)<br />

TLDF - team label data file<br />

TLDHS - Target Location, Designation <strong>and</strong> H<strong>and</strong>-off System<br />

TLI - Transport Layer Interface<br />

TLM - topographic line maps<br />

TLM - telemetry module<br />

TLP - transmission level point<br />

TLP - (Test Level Point) - Used in setting the dB level in analog<br />

circuits over a 23dB range.<br />

TLS - top level specification<br />

TLS - TOC LAN server<br />

TLSP - transport layer security protocol<br />

TM - technical manual<br />

TM - traffic management<br />

TM - TROPO modem<br />

TMAC - Treasury multiuser acquisition contract<br />

TMAP - Telecommunications Monitoring <strong>and</strong> Assessment Program<br />

(USAF)<br />

TMCP - (Two Megabit Channelized Port) Module - This module<br />

supports CCITT 2.048 Mbps CEPT transmission equipment <strong>and</strong><br />

facilities <strong>and</strong> serves as a digroup interface for European voice<br />

calls.<br />

TMD - tactical (theater) missile defense<br />

TMDPS - tactical mission data planning system<br />

TMG - Tactical Multi-Net Gateway<br />

TMG - tactical messaging gateway<br />

TMG - timing<br />

TMIF - tactical MSE interface family<br />

TMN - Telecommunications Management Network<br />

TMPS - theater mission planning system<br />

TMRC - teletype modulaltion rate converter<br />

TMS - tactical message system<br />

TMS - tax modernization system<br />

TMS - technical <strong>and</strong> management support (DSA/FTS)<br />

TMS - trouble management system<br />

TMS - tactical message switch<br />

TMSO - Telecommunications Management Service Office<br />

TMTA - tactical message transfer agent<br />

TMWS - Target Material Work Station<br />

Page 98 of 106<br />

Tn - TED network key<br />

TN - T nodal<br />

TNAPS+ - Tactical Network Analysis <strong>and</strong> Planning System Plus<br />

TNC - Threaded Nut Connector<br />

TNC - terminal node controller<br />

TNCC - TROJAN Network Control Center<br />

TNI - trusted network interpretation<br />

TNM - telecommunications network management (st<strong>and</strong>ard)<br />

TNS - tactical name server<br />

TO - technical order<br />

TOC - Tactical Operations Center<br />

TOCU - tropo orderwire control unit<br />

TOD - time of day<br />

TOE - table(s) of organization <strong>and</strong> equipment<br />

TOES - telephone order entry system<br />

TOH - top of hill<br />

Token - Pertains to LAN systems. It is a unique combination of bits<br />

that grants permission to a LAN workstation to transmit.<br />

Token Bus - A LAN with a bus structure that uses token passing for<br />

access.<br />

TOP - technical (<strong>and</strong>) office protocol<br />

Top Cable Entry Kit - Allows customers to drop cables into the node<br />

from an overhead, vertical ladder instead of bringing them up from<br />

the raised floor.<br />

Topology - A description of the physical connections of a network.<br />

TOPOMAN - topographic manager<br />

TOPS - total object programming system<br />

TOPS - transition of optical processing to systems<br />

TOS - terms of service<br />

TOS - trusted operating system<br />

TOS - type-of-service<br />

TOT - time on task<br />

TP - transaction processing<br />

TP - telephone<br />

TP - transport protocol<br />

TPA - tactical packet adapter<br />

TPA - terminal privilege authority<br />

TPC - Telecommunications Policy Committee<br />

TPC - tactical pilotage charts<br />

TPDU - transport protocol data unit<br />

TPEP - Trusted Product Evaluation Program<br />

TPF - transaction processing facility<br />

TPFDD - Time-Phased Force <strong>and</strong> Deployment Data<br />

TPFDL - Time-Phased Force <strong>and</strong> Deployment List<br />

TPI - tracks per inch<br />

TPI - two-person integrity<br />

TPL - table producing language<br />

TPM - transient protection module<br />

TPN - Tactical Packet Network

---

TPS - technology protection system<br />

TPS - tactical packet switch<br />

TPSN - tactical packet switch network<br />

TQDM - total quality data management<br />

TQM - total quality management<br />

TR - token ring<br />

TR - GNDCP transportable ground comm<strong>and</strong> post<br />

TR - terminal ready<br />

TRAC - tactical radar correlator<br />

TRADOC - United States Army Training <strong>and</strong> Doctrine Comm<strong>and</strong><br />

Traffic Shaping - A mechanism that alters the traffic characteristics<br />

of a stream of cells on a connection to achieve better network<br />

efficiency, while meeting the QoS objectives, or to ensure<br />

conformance at a subsequent interface. Traffic shaping must<br />

maintain cell sequence integrity on a connection.<br />

Transcoder - A device to encode <strong>and</strong> decode. Encoding is the<br />

generation of digital signals in PCM voice equipment to represent<br />

quantized samples. Decoding is a set of quantized values<br />

generated from digital representation.<br />

TRANSEC - transmission security<br />

Transit Domain - A call can only pass-through at most one domain,<br />

called the transit domain, to reach its destination. The transit<br />

domain is a "route server domain."<br />

Transmission - The dispatching of a signal, message, or other form<br />

of intelligence by wire, radio, telegraphy, telephony, facsimile, or<br />

other means (ISO); a series of characters, messages, or blocks<br />

including control information <strong>and</strong> user data.<br />

Transmission Link - The information path between sender <strong>and</strong><br />

receiver.<br />

TRAP - Tactical Related Application<br />

Trap - An asynchronous message from the SNMP agent to the<br />

SNMP manager notifying the manager of events or alarms that<br />

have occurred at the node.<br />

TRAP - terrain resources analysis program<br />

TRC - technical reference codes<br />

TRC - transverse redundancy check<br />

TRC - transmission release code<br />

TRC - Transmission Resource Controller<br />

TRCS - tactical radio communications system<br />

TRE - tactical receive equipment<br />

Trendiest - The portion of the central office that connects to trunks<br />

going to other switching offices.<br />

TRG - Threshold Reporting Group<br />

TRI-TAC - Tri-Service Tactical Communications<br />

TRIB - transfer rate of information bits<br />

TRILS - tactical radar identification <strong>and</strong> location system (Canada)<br />

TRIMS - targets <strong>and</strong> ranges information/management system<br />

TRK-2 Module - This module supports st<strong>and</strong>ard North American D4<br />

framed, DS1 rate (1.544 Mbps) transmission facilities.<br />

TRK-3 Module - This module supports subrated facilities at 1.544<br />

Mbps DS1 or FT1 (T1-DSX interface card), 2.048 Mbps E1 of FE1<br />

(E1 interface card), or Nx64 kbps (64-2048 kbps) RS-530/RS-<br />

449/ V.36/X.21/V.35 (STI interface card). Proprietary, clear<br />

channel, <strong>and</strong> PRC/ TMCP bundles are installed on the card to<br />

allocate the DS0s.<br />

TRK - trunk<br />

Page 99 of 106<br />

TRL - tropospheric link<br />

TRLP - transmission reference level point<br />

TRM - Team Risk Management<br />

TRM - technical reference model<br />

TRN - token ring network<br />

TRO - transparent remote operation<br />

TROJAN - SPIRIT special purpose integrated remote intelligence<br />

terminal<br />

TROPO - tropospheric scatter radio<br />

Trouble Ticket - A telco "work order" used to track Customer<br />

Repairs within the Telco. If you call someone "inside" the telco's<br />

repair department they will need this number to proceed. It will<br />

also be needed whenever you call to check on the status of a<br />

repair. Always ask for this number when initiating a repair request.<br />

TRP - technology reinvestment project<br />

TRP - target reference point<br />

TRPI - telecommunications-related personal information<br />

TRSS - tactical remote sensor system<br />

TRT - tropospheric terminal<br />

Trunk - A single physical b<strong>and</strong>width resource connecting two nodes<br />

(such as a T1 or T3 trunk) <strong>and</strong> is used to build a transmission<br />

network. A network may include fiber optic, copper wire, coaxial<br />

cable, microwave, or satellite. Also see link.<br />

Trunk Group - A number of telephone channels which are<br />

functionally related. Most common is the Hunt Group. Other<br />

common types include Incoming Trunk Groups <strong>and</strong> Outgoing<br />

Trunk Groups. See also Combination Trunks <strong>and</strong> Two-way DID<br />

Trunks.<br />

Trunk Routing Attributes - Parameters defining the level of<br />

preference for three types of trunk characteristics: Terrestrial or<br />

Satellite, Encrypted or Not Encrypted, or Fiber.<br />

TRUSIX - trusted UNIX working group<br />

TS - time slot<br />

TS - t<strong>and</strong>em switches<br />

TS - Top Secret<br />

TS/C - TOP SECRET/Collateral<br />

TS/SCI - Top Secret/Sensitive Compartmented Information<br />

TS/SI - top secret/sensitive information<br />

TS3 - TOP SECRET Support System<br />

TSABI - top secret <strong>and</strong> below interoperability<br />

TSAD - Theater Strategic Air Defense<br />

TSAP - transport service access point<br />

TSAPI - telephony services application program interface<br />

TSARS - tactical situation awareness response system<br />

TSAS - tactical switching afloat system<br />

TSB - trunk signaling buffer<br />

TSC - Tactical Support Center<br />

TSC - Modernization System<br />

TSC(A) - Theater Signal Comm<strong>and</strong> (Army)<br />

TSC2 - Telecommunications Support Contract 2 (GSA/FTS)<br />

TSCM - technical surveillance countermeasures program<br />

TSD - tactical situation display<br />

TSE - terminal server edition

---

TSEC - telecommunications security<br />

TSES - tactical signals exploitation system<br />

TSG - test signal generator<br />

TSGCEE - tri-service group on communications-electronics<br />

equipment (NATO)<br />

TSIG - trusted systems interoperability group<br />

TSK - transmission security key<br />

TSL - tactical satellite link<br />

TSM - tax system modernization<br />

TSM - trusted software methodology<br />

TSM - trunk signaling message<br />

TSO - time sharing option<br />

TSO - telecommunications service order<br />

TSOP - thin small-outline package<br />

TSOP - tactical st<strong>and</strong>ing operating procedure<br />

TSP - telecommunications service priority<br />

TSP - PO TSP Program Office<br />

TSP - (Time Space Processor) ASIC (Application Specific Integrated<br />

Circuit) - Each SX module has four TSPs, each capable of<br />

performing time-space-time switching on IC residing on the<br />

switchboard. Facilitates bi-directional transmission of call data<br />

between more than one TBus. The TSP has two major functions:<br />

Time Slot Interchange, <strong>and</strong> PBus arbitration <strong>and</strong> control.<br />

TSP - telecommunication service priority<br />

TSPI - time space position information<br />

TSR - telecommunications service request<br />

TSR - terminate <strong>and</strong> stay resident<br />

TSRD - Telecommunications Security Requirements Document<br />

TSS - Telecommunications St<strong>and</strong>ardization Sector<br />

TSS - traffic service station<br />

TSS - tactical switching system<br />

TSSP - tactical satellite signal processor<br />

TSSR - tropo-satellite support radio<br />

TST - tactical satellite terminal<br />

TSTS - transaction switching <strong>and</strong> transport service<br />

TT - terminal timing<br />

TT&C - telemetry, tracking & comm<strong>and</strong><br />

TTA - tactical terminal adapter<br />

TTA - trusted transfer agent<br />

TTA - tactical terminal adapter<br />

TTAP - Trusted Technology Assessment Program (NSA-NIST)<br />

TTCS - tactical terminal control system<br />

TTD - temporary text delay<br />

TTDS - theater tactical display system<br />

TTL - (Transistor to Transistor Logic) - A digital circuit in which the<br />

output is derived from two transistors. The term also refers<br />

generically to digital connections in contrast with analog<br />

connections.<br />

TTL - time-to-live<br />

TTMS - TROJAN Transportable Mini Switch<br />

TTP - trusted third party (parties)<br />

Page 100 of 106<br />

TTS - text-to-speech<br />

TTS - trouble ticketing system<br />

TTY - teletype<br />

TTY - teletypewriter<br />

TU - timing unit<br />

TU/FA - transition unit frame assembly<br />

TUBA - transition unit box assembly<br />

TUBA - TCP <strong>and</strong> UDP with bigger addresses<br />

TUNA - transition unit nest assembly<br />

TVI - television interference<br />

TVP - topological vector profile<br />

TVRS - tactical voice recognition system<br />

TW/AA - tactical warning <strong>and</strong> attack assessment<br />

TWA - two-way alternate<br />

TWASI - 2-wire analog subscriber interface<br />

TWG - telecommunications working group<br />

Two Wire - A circuit path where only a single pair of wires is used. A<br />

Hybrid is used to convert from two wire to Four Wire circuits. No<br />

hybrid is perfect, <strong>and</strong> those used by the phone company can be<br />

pretty bad. But the Telos TWO family is approaching perfection!<br />

Two-way DID Trunk - An ISDN PRI (or T1) line equipped for direct<br />

inward dialing. Most trunks are related to a given phone number,<br />

either alone or as part of a hunt group. In the case of a "normal"<br />

(ie analog) DID Trunk a group of phone numbers are associated<br />

with that DID trunk (or group of trunks) <strong>and</strong> incoming calls include<br />

the DID Number, so the PBX can route that call to the correct DID<br />

Extension. This is exactly how ISDN PRI functions, with the DID<br />

information coming in over the D Channel. There is a big<br />

difference between a normal DID Trunk <strong>and</strong> a Two-way DID trunk<br />

over ISDN PRI. For one thing, ISDN PRI is digital. More<br />

importantly, you cannot dial out over a true DID trunk <strong>and</strong> you can<br />

dial out over a PRI. See DID<br />

TWS - two-way simultaneous<br />

TWTA - traveling wave tube amplifier<br />

TWX - teletypewriter exchange service<br />

TX - transmit<br />

TxClkIn - transmit clock in<br />

TXCLKIN - transmit clock in<br />

TxClkSrc - transmit clock source<br />

TXD - transmitted data<br />

TxIn - transmit in<br />

TxRef - transmit reference<br />

TXREF - transmit reference<br />

U - unclassified<br />

U<br />

U - Interface - The interface between the ISDN BRI line <strong>and</strong> the NT1.<br />

This can be considered the ISDN "phone jack" in the USA &<br />

Canada <strong>and</strong> is frequently in the form of a RJ-11 or RJ-45 type<br />

telephone jack.<br />

U/C - upconverter<br />

U/L - uplink

---

UA - user agent<br />

UAN - universal area network<br />

UART - universal asynchronous receiver/transmitter<br />

UAV - unmanned aerial vehicle<br />

UBR - unspecified bit rate<br />

UBS - unclassified but sensitive<br />

UCAV - uninhabited combat aerial vehicles<br />

UCCS - (EUCOM) comm<strong>and</strong> <strong>and</strong> control system<br />

UCMJ - Uniform Code of Military Justice<br />

UCNI - unclassified controlled nuclear information<br />

UCSB - Universal Clock Synchronizer Board<br />

UDDI - universal description discovery <strong>and</strong> integration<br />

UDF - user defined functions<br />

UDP - User Datagram Protocol<br />

UFC - universal feature card<br />

UFO - ultra-high frequency follow-on satellite<br />

UHF - ultra high frequency<br />

UI - user interface<br />

UIDL - user interface definition language<br />

UIMS - user interface management system<br />

UIRV - Unique Interswitch Rekey Variable<br />

UISRM - user interface system reference model<br />

UITC - user interface transit case<br />

UJTL - Uniform Joint Task List<br />

ULANA - unified local area network architecture<br />

ULCS - Unit Level Circuit Switch<br />

ULF - ultra low frequency<br />

ULMS - unit level message switch<br />

ULP - ultra low power<br />

ULP - upper layer protocol<br />

ULS - user location server<br />

ULSI - ultra-large-scale integration<br />

UM - universal modem<br />

UMC - (Unassigned Multiplex Channel Code) - This NCC is<br />

transmitted for a DS0B channel that is not active.<br />

UML - universal modeling language<br />

UMS - universal modem system<br />

UMTS - universal mobile telecommunications system (Europe)<br />

UNE - unbundled number elements<br />

UNI - user-network interface<br />

Unipolar - Unipolar (of one polarity) is the fundamental characteristic<br />

of internal signals in digital communications equipment. A unipolar<br />

signal represents simply, one of two states: on or off; 1 or 0. A<br />

unipolar signal may either: go on for the portion of the bit time,<br />

<strong>and</strong> then return to zero state (unipolar RZ); or, go on (<strong>and</strong> stay<br />

on) as long as consecutive one bits are present, not returning to<br />

zero until a zero state occurs (unipolar NRZ). Contrast with<br />

bipolar.<br />

UNO - universal networked object<br />

UOES - user operational evaluation system<br />

Page 101 of 106<br />

UPS - uninterruptible power supply<br />

UPT - universal personal telecommunications<br />

URAV - uninhabited reconnaissance aerial vehicles<br />

URG - urgent pointer flag, TCP header<br />

URL - uniform (universal) resource locator<br />

US - ultraspectral sensor<br />

US - user<br />

US - United States<br />

USA - United States Army<br />

USACC - U.S. Army Communications Comm<strong>and</strong><br />

USAF - United States Air Force<br />

USAFE - United States Air Forces in Europe<br />

USAISC - US Army Information Systems Comm<strong>and</strong><br />

USAISSAA - US Army Information Systems Selection <strong>and</strong><br />

Acquisition Agency<br />

USAR - United States Army Reserve<br />

USARPAC - US Army Pacific<br />

USARSO - United States Army Forces Southern Comm<strong>and</strong><br />

USASOC - United States Army Special Operations Comm<strong>and</strong><br />

USAT - ultra small aperture terminal<br />

USB - universal serial bus<br />

USB - upper sideb<strong>and</strong><br />

USCENTCOM - United States Central Comm<strong>and</strong><br />

USCG - United States Coast Guard<br />

USCINCCENT - Comm<strong>and</strong>er in Chief, US Central Comm<strong>and</strong><br />

USCINCEUR - US Comm<strong>and</strong>er in Chief, Europe<br />

USCINCJFCOM - Comm<strong>and</strong>er in Chief, US Joint Forces Comm<strong>and</strong><br />

USCINCPAC - Comm<strong>and</strong>er in Chief, US Pacific Comm<strong>and</strong><br />

USCINCSO - Comm<strong>and</strong>er in Chief, US Southern Comm<strong>and</strong><br />

USCINCSOC - Comm<strong>and</strong>er in Chief, US Special Operations<br />

Comm<strong>and</strong><br />

USCINCSPACE - Comm<strong>and</strong>er in Chief, US Space Comm<strong>and</strong><br />

USD - (Universal Synchronous Data) Module - This module provides<br />

two independent synchronous data ports with V.35 or RS-449/422<br />

DCE/DTE interfaces at rates from 1.2 kbps to 1.344 Mbps <strong>and</strong><br />

RS-232 DCE/DTE interfaces at rates from 1.2 kbps to 19.2 kbps.<br />

Also supported is a RS-530 DCE interface at rates of 1.2 kbps to<br />

1.344 Mbps.<br />

USDC - U.S. Display Consortium<br />

USE/DA - Users Society for Electronic Design Automation<br />

USEP - unprotected signal entry panel<br />

USERID - user identification<br />

USEUCOM - United States European Comm<strong>and</strong><br />

USFK - United States Forces Korea<br />

USIA - United States Information Agency<br />

USIGS - United States Imagery <strong>and</strong> Geospatial Information System<br />

USIS - United States Imagery System<br />

USJFCOM - United States Joint Forces Comm<strong>and</strong><br />

USLI - ultra-large-scale integration<br />

USMC - United States Marine Corps

---

USMCEB - United States Military Communications-Electronics Board<br />

USMTF - US message text format<br />

USMTF - United States MTF<br />

USN - United States Navy<br />

USPACOM - United States Pacific Comm<strong>and</strong><br />

USSOCOM - United Stated Special Operations Comm<strong>and</strong><br />

USSOUTHCOM - United States Southern Comm<strong>and</strong><br />

USSPACECOM - United states Space comm<strong>and</strong><br />

UT - universal time<br />

UTC - unit type code<br />

UTC - Coordinated Universal Time<br />

UTM - universal transverse mercator<br />

UTP - unshielded twisted pair<br />

UUCP - Unix-to-Unix Copy<br />

UVS - U variable storage<br />

V - volts<br />

V - per-call key<br />

V p-p - volts peak-to-peak<br />

V&V - verification & validation<br />

V<br />

V.35 - A high-speed modem st<strong>and</strong>ard <strong>and</strong> physical interface<br />

st<strong>and</strong>ard (CCITT). V.35 uses a 34-pin, Winchester-type<br />

connector. It provides balanced data <strong>and</strong> clock leads, <strong>and</strong><br />

employs bipolar current for signaling.<br />

V1 - Version 1 (Commercial)<br />

V2 - Version 2 (Ruggedized)<br />

V2DA - Version 2 Data Adapter<br />

V3 - Version 3 (Militarized)<br />

VA - value added (network)<br />

VA - volt-ampere<br />

VAAP - Vulnerability Analysis <strong>and</strong> Assistance Program (Navy)<br />

VAC - volts alternating current<br />

VAD - value added distributor<br />

VADATS - Veterans Administration data transmission system<br />

VAS - value added services<br />

VAS - vulnerability assessment system<br />

VAX - virtual address extension<br />

VBA - variable balance architecture<br />

VBA - Veterans Benefit Administration<br />

vBNS - very high-speed backbone network service<br />

VBR - variable bit rate<br />

VC - virtual channel (call) (circuit)<br />

VC - voice compressor<br />

VC31 - <strong>and</strong> VC62 (Voice Compression) Server Modules - These<br />

modules encode <strong>and</strong> decode full duplex PCM voice circuits into<br />

32 or 24 kbps ADPCM on a per channel basis. Used for<br />

international voice circuits, these modules increase the voice-call<br />

capacity of trunks by compressing <strong>and</strong> decompressing both Mu-<br />

Law <strong>and</strong> A-Law comp<strong>and</strong>ed PCM voice circuits.<br />

VCC - virtual channel connection<br />

VCC - voice communications circuit<br />

VCFAX - (Voice Compression Facsimile) Server Module - This<br />

module provides 4:1, 6.67:1, <strong>and</strong> 8:1 b<strong>and</strong>width reduction for<br />

voice transmission. It does this by compressing 24 channels of 64<br />

kbps PCM data into an equal number of channels at 16 kbps, 9.6<br />

kbps, or 8 kbps. The VCFAX supports compressed group III Fax<br />

at 9.6K fax on 16K circuits, 9.6K fax on 9.6K circuits, <strong>and</strong> 7.2K fax<br />

<strong>and</strong> 8K circuits.<br />

VCI - virtual circuit identifier<br />

VCM - virtual call manager<br />

VCN - voice communications network<br />

VCO - voltage controlled oscillator<br />

VCP - virtual channel processor<br />

VCP - communication server<br />

VCS - virtual circuit switch<br />

VCSEL - Vertical Cavity Surface Emitting Laser<br />

VCU - versatile computer unit<br />

VCXO - Voltage-Controlled Crystal Oscillator<br />

VDC - volts direct current<br />

VDE - vertical doping engineering<br />

VDIN - Voice-Data-Image-Navigation<br />

VDLS - vaults, depots <strong>and</strong> logistics systems<br />

VDP - video decompression processor<br />

VDR - voice digitization rate<br />

VADER - video analysis, digitization, enhancement <strong>and</strong> re-<br />

VDS - voice data switch<br />

transmission (DIA)<br />

VDSL - very high data rate DSL<br />

VAN - value-added network<br />

VDT - Video Display Terminal<br />

VAPC - (Vector Adaptive Predictive Coding) - Compresses PCM<br />

samples for transmission at either 8 kbps or 16 kbps. The<br />

VDT - visual display terminal<br />

algorithm uses a block coding process that combines vector<br />

quantization with linear prediction in an adaptive structure. The<br />

vector quantizer uses an optimized code book to code the<br />

VDTC - visual display terminal controller<br />

VDU - Video Display Unit<br />

difference between an input vector <strong>and</strong> a predicted vector.<br />

VDU - visual display unit<br />

VAR - value-added reseller<br />

VDU - video docking unit<br />

VAR - variable<br />

VDUC - visual display unit controller<br />

Variant - The particular protocol (i.e National ISDN-1 or ETS 300)<br />

running on a specific switch. Not all variants are valid for a<br />

VECP - value engineering change proposal<br />

specific switch. The switch br<strong>and</strong> <strong>and</strong> model plus the variant<br />

veh - vehicle<br />

defines the ISDN protocol. See ISDN Protocol.<br />

VERTS - virtual emergency response training system<br />

Page 102 of 106

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VESA - Video Electronics St<strong>and</strong>ards Association<br />

VF - voice frequency<br />

VFC - Voice frequency channel<br />

VFCT - voice frequency carrier telegraph<br />

VFTG - voice frequency telegraph<br />

VFTK - voice frequency telegraph keyer/converter<br />

VG - variable generate<br />

VGA - video graphics array<br />

VHDL - very high speed integrated hardware description language<br />

VHF - very high frequency<br />

VHF-FM - very high frequency-frequency modulated<br />

VHF - very high frequency<br />

VHPBNS - Very-High-Performance Backbone Network Service<br />

VHSIC - very high speed integrated circuit<br />

VI - visual information<br />

VIA - vendor independent ASIS<br />

VIC - vehicular intercommunication<br />

VICS - VME Integrated Communications System<br />

VIE - virtually integrated enterprise<br />

VIEWS - virtual interactive environment work space<br />

VIM - vendor independent messaging<br />

VIM - versatile backplane bus INFOSEC module<br />

VINCE - vendor independent network control entity<br />

VINSON - KY-57/-58<br />

VIP - very important person<br />

VIP - visual information processor<br />

VIPR - Virtual IP Routing<br />

Virtual Call ID - Device ID used to query interdomain calls after they<br />

leave the origination domain <strong>and</strong> enter a transit domain or the<br />

destination domain. The virtual call ID consists of the node ID <strong>and</strong><br />

a r<strong>and</strong>om card <strong>and</strong> port ID The virtual call ID is assigned by the<br />

inbound gateway node in the domain. The call is assigned a<br />

virtual call ID for each domain it goes through.<br />

Virtual Circuit - A virtual circuit is a communications link that<br />

appears to be a dedicated point-to-point link but is not. It delivers<br />

data packets in guaranteed sequential order just as they would be<br />

received over a point-to-point circuit. The applications for virtual<br />

circuit packets include DS1 dialed digit packets <strong>and</strong> EIA signal<br />

information packets for synchronous data ports.<br />

Virtual ISDN - An alternative to repeaters which uses a local Telco<br />

Switch to act as a repeater <strong>and</strong> which then sends the signal onto<br />

another switch which supports ISDN. See also Repeater.<br />

VISN - Veterans Integrated Service Networks<br />

VITS - video image tracking system<br />

VIU - voice interface unit<br />

VIXS - video information transfer system<br />

VLAN - virtual local area network<br />

VLDB - very large database<br />

VLES - variable length execution sets<br />

VLF - very low frequency<br />

VLIW - very long instruction word<br />

VLM - very large memory<br />

VLM - virtual loadable modules<br />

VLSI - very large-scale integration<br />

VLSIC - very large-scale integrated circuit<br />

VLWI - very long word instruction<br />

VM - virtual (machine) manufacturing<br />

VME - versa module European<br />

VME - virtual memory extension<br />

VME - Versa Module Eurobus<br />

VMF - variable message format<br />

VMLI - line interface card<br />

VMLI - VME DTA interface card<br />

VMS - virtual memory system<br />

VNMC - Video Network Management Center<br />

VOA - Voice of America<br />

VOCU - voice orderwire control unit<br />

VOD - video on dem<strong>and</strong><br />

VOFR - voice over frame relay<br />

VOIP - voice over IP<br />

VOX - voice operated transmission<br />

VOX - (Voice Operated Relay Circuit) Module - This module<br />

performs voice activity detection on 24 voice channels input<br />

through a DSP module when DSI compression is used. This<br />

module, along with the N.E.T. ADPCM <strong>and</strong> DSI modules,<br />

provides a speech compression method to increase the capacity<br />

of a multichannel trunk to transmit voice.<br />

VOX - voice actuation, voice-operated transmission<br />

VP - virtual path<br />

VPF - vector product format<br />

VPI - virtual path identifier<br />

VPN - Virtual Private Network<br />

VPRN - Virtual Private Remote Networking<br />

VPT - Virtual Private Trunking<br />

VQ - (Vector Quantization) - This is the voice compression algorithm<br />

for the VCFAX module.<br />

VR - virtual reality<br />

VRAM - video r<strong>and</strong>om access memory<br />

VRC - vertical redundancy check<br />

VRD - virtual retinal display<br />

VRML - Virtual Reality Modeling (Markup) Language<br />

Vrms - voltage root mean square<br />

VRU - voice response unit<br />

vs - versus<br />

VSA - vendor security analyst<br />

VSAL - very small aperture laser<br />

VSAM - virtual storage access method<br />

VSAT - Very Small Aperture Terminal<br />

VSB - vestigial side b<strong>and</strong><br />

VSCS - voice switching <strong>and</strong> control system<br />

VSE - virtual storage extended<br />

VSEC - voice secure card<br />

Page 103 of 106

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VSM - vestigial sideb<strong>and</strong> modulation<br />

VSP - voice selection panel<br />

VSWR - voltage st<strong>and</strong>ing wave ratio<br />

VT - virtual terminal<br />

VTAM - virtual telecommunications access method<br />

VTC - Variable Transfer Complete<br />

VTC - video teleconferencing<br />

VTCM - Video Teleconferencing Module<br />

VTF - video teleconference facility<br />

VTGC - virtual trunk group clusters<br />

VTI - Variable Transfer Initiate<br />

VTOA - Voice Telephony Over ATM<br />

VTP - Virtual Terminal Protocol<br />

VTR - video tape recording<br />

VTS - vessel traffic system<br />

VTS - virtual terminal service<br />

VTTYC - VDT Teletype Controller<br />

VTU - video teleconferencing unit<br />

VU - variable update<br />

VUX - variable update X<br />

VV&A - verification, validation <strong>and</strong> accreditation<br />

VxWorks - Realtime OS running on a Promina node.<br />

W - watts<br />

W - weekly<br />

W - wire<br />

w/ - with<br />

W<br />

W3C - World Wide Web Consortium<br />

W4GL - workgroup 4GL<br />

WA - West Atlantic<br />

WAAS - wide area augmentation system<br />

WAATS - wide area assured transport service<br />

WABI - Windows application binary interface<br />

WACK - wait acknowledgment<br />

WACS - Wire <strong>and</strong> Cable Services (GSA/FTS)<br />

WAD-GNSS - wide area differential global navigation satellite system<br />

WADS - wide area data service<br />

WAIS - Wide Area Information Server<br />

WAM - WWMCCS automation modernization<br />

WAN - wide area network<br />

WAP - wireless application protocol<br />

WARC - World Administrative Radio Conference (Consortium)<br />

WARCOM - Warfare Comm<strong>and</strong><br />

WARNORD - warning order<br />

Page 104 of 106<br />

WARP - weight associate rule processor<br />

WARSIM - Warfighters Simulation<br />

WATM - Wireless Asynchronous Transfer Mode<br />

WATS - wide-area telecommunications services<br />

WAVE - wide-area voice exchange<br />

Waveform Coding - Refers to the electrical techniques used to<br />

convey binary signals. In digital communication equipment,<br />

internal signals are typically bipolar, with either 100 percent (NRZ)<br />

or a 50 percent (RZ) duty cycle. On the external interface, digital<br />

waveform coding (line coding) must be suitable for the application<br />

<strong>and</strong> the distance to be traveled.<br />

WAVES - Waveform <strong>and</strong> Vector Exchange Specification<br />

WAWS - Washington-area wideb<strong>and</strong> system<br />

WB - wideb<strong>and</strong><br />

WBEM - Web-based Enterprise Management<br />

WBII - wide b<strong>and</strong>width information infrastructure<br />

WCC - weapons control computer<br />

WCCS - Wing Comm<strong>and</strong> <strong>and</strong> Control System<br />

WCG - workstation, computer graphics<br />

WDL - waveform description language<br />

WDM - wavelength division multiplexing<br />

WE - write-enable<br />

WECO - Western Electric Company<br />

WEDI - workgroup for electronic data exchange<br />

WF - waveform<br />

WGET - working group on encryption <strong>and</strong> telecommunications<br />

WHCA - White House Communications Agency<br />

WIC - workstation interface card<br />

WICP - Wing Initial Communications Package<br />

Wideb<strong>and</strong> Circuit - A transmission facility having a b<strong>and</strong>width<br />

greater than that of a voice-grade line.<br />

WIMPS - windows, icons, menus, printers, scroll bars<br />

WIN - Warfighter Information Network<br />

WIN - wireless in building<br />

WIN - WWMCCS intercomputer network<br />

WIN-T - Warfighter Information Network-Terrestrial/Tactical<br />

WIN - windows<br />

WINGS - Web Interactive Network of Government Services<br />

WINS - windows Internet naming service<br />

WIS - WWMCCS information system<br />

WISP - Workstation Integrated Security Program<br />

WITS - Washington interagency telecommunications system<br />

(GSA/FTS)<br />

WITS - wireless information transfer system<br />

WITS2001 - Washington interagency telecommunications system<br />

2001 (FSA/FTS)<br />

WL - west Atlantic<br />

WLA - wireline adapters<br />

WLAN - wireless local-area network<br />

WLTU - wire line termination unit

---

WML - wireless markup language<br />

WMS - workload management system<br />

WOC - wing operations center<br />

WOD - word of day<br />

WODVD - word of day validity date<br />

Work Order - See Trouble Ticket.<br />

WORM - write once, read many<br />

WOSA - Windows open services architecture<br />

WOTL - worldwide topographic loader<br />

WP - word processing<br />

WP - west Pacific<br />

WPS - worldwide port system<br />

WRAP - Warfighting Rapid Acquisition Process (Army)<br />

WS - workstation<br />

WSP - workstation security package<br />

WSP - workstation software package<br />

WSTI - Wide Area Surveillance Thermal Imagers (USAF)<br />

WVS - World Vector Shoreline<br />

WW - worldwide<br />

WWAS - Wide-area Augmentation System<br />

WWMCCS - worldwide military comm<strong>and</strong> <strong>and</strong> control system<br />

WWW - World Wide Web<br />

WX - weather<br />

WYSIWYG - what you see is what you get<br />

X<br />

X-INSUM - Executive Intelligence Summary<br />

X-Bus - Used to connect the shelves on a Promina 800 node.<br />

X - subscriber or net traffic key<br />

X.21 - A serial data interface for synchronous data popular in<br />

Europe. X.21 uses balanced data <strong>and</strong> unbalanced signal lines.<br />

X.25 - A CCITT recommendation that specifies the interface between<br />

user data terminal equipment (DTE) <strong>and</strong> packet switching data<br />

circuit-terminating equipment (DCE).<br />

X/L - cross link<br />

XA - extended architecture<br />

xcvr - receiver<br />

XCVR - tranceiver<br />

XDDCMP - External Digital Data Communications Message Protocol<br />

XDR - extended data representation<br />

xDSL - generic (specialized) digital subscriber line<br />

XHMTL - extensible HTML<br />

XID - transaction ID<br />

XIDB - Extended Intelligence Data Base<br />

XMIT - transmit<br />

XML - Extensible Markup Language<br />

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XMP - cross-management platform<br />

XMSN - transmission<br />

XMT - transmit<br />

XMTD - transmitted<br />

XO - executive officer<br />

XPE - cross-platform environment<br />

XPG - X/Open Portability Guide<br />

Xport - External port on a DMD module.<br />

XRF - extended recovery facility<br />

XSL - extensible stylesheet language<br />

XT - crosstalk<br />

XTACACS - Extended Terminal Access Controller Access Control<br />

System<br />

XTC - external transmit clock<br />

XTI - X/open transport interface<br />

XTRA - extra<br />

XVAR - X variable<br />

Y/N - yes/no<br />

Y2K - Year Two Thous<strong>and</strong><br />

Y<br />

Yellow Alarm - A yellow alarm indicates that the neighbor node has<br />

detected a red alarm condition.<br />

Z - zulu time<br />

Z - AKDC KEK, zeroize<br />

Z - ALL zeroize all<br />

Z - SEL selective zeroize<br />

ZAK - zero administration kit<br />

Z<br />

ZAW - zero administration windows<br />

ZBTSI - (Zero Byte Time Slot Interchange) - A zero-suppression<br />

technique that involves buffering <strong>and</strong> addressing. The buffer holds<br />

96 bytes (four D4 frames). As the bytes enter the buffer, they are<br />

scanned. Any zero code detected is removed from the buffer <strong>and</strong><br />

nonzero bytes fill the vacated spots.<br />

Zero Suppression - The elimination of insignificant zeroes to control<br />

the ones' density on a T1 line or T3 line.<br />

ZFX - channel sequence number out of sequence<br />

ZIF - zero insertion force<br />

ZISC - zero-instruction-set computer<br />

ZKG - Z-key generator<br />

ZNP - Zero Knowledge Proof (security protocol)<br />

ZR - zone restriction<br />

ZRL - zone restriction list

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ZSI - Zentralstelle fur Sicherheit in der Informationstechnik<br />

(Germany)<br />

ZULU - Time Zone indicator for Coordinated Universal Time<br />

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