Glossary, Acronyms, and Abbreviations - IIUSA
Glossary, Acronyms, and Abbreviations - IIUSA
Glossary, Acronyms, and Abbreviations - IIUSA
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<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
# - 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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 />
Page 105 of 106<br />
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
ZSI - Zentralstelle fur Sicherheit in der Informationstechnik<br />
(Germany)<br />
ZULU - Time Zone indicator for Coordinated Universal Time<br />
Page 106 of 106