Abbreviations and Acronyms - SCTE

<strong>Abbreviations</strong> <strong>and</strong> <strong>Acronyms</strong><br />

µsec Microsecond<br />

1xRTT Single Carrier Radio Transmission Technology<br />

2G 2 nd Generation<br />

3DES Triple Data Encryption St<strong>and</strong>ard<br />

3DTV Three Dimensional Television<br />

3G 3 rd Generation<br />

3GPP Third Generation Partnership Project<br />

3GPP2 Third Generation Partnership Project 2<br />

4C Consortium of Intel, IBM, Matsushita, <strong>and</strong> Toshiba<br />

4G Fourth Generation<br />

4WM Four Wave Mixing<br />

5C Consortium of Intel, Sony, Matsushita, Toshiba, <strong>and</strong> Hitachi<br />

8VSB 8-level Vestigial Sideb<strong>and</strong><br />

A/D Analog to Digital<br />

A/D/A Analog to Digital to Analog<br />

A/O Additional Outlet<br />

A/V Audio/Video<br />

AAA Authentication, Authorization, <strong>and</strong> Accounting<br />

AAAA American Association of Advertising Agencies<br />

AAC Advanced Audio Codec/Coding<br />

AACS Advanced Access Content System<br />

AAS Adaptive Antenna System<br />

ABC American Broadcasting Corporation<br />

ABSBH Average Busy Season Busy Hour<br />

AC Access Category<br />

AC Alternating Current<br />

AC_BE Access Category – Best Effort<br />

AC_BK Access Category – BacKground<br />

AC_VI Access Category – VIdeo<br />

AC_VO Access Category – VOice<br />

AC3 Adaptive Transform Coder 3<br />

AC-3 Audio Coding Revision 3<br />

ACAP Advanced Common Application Platform<br />

ACD Automated/Automatic Call Distribution<br />

ACK Acknowledge(ment)<br />

ACL Access Control List<br />

ACL Applications Connection-Less<br />

ACM Adaptive Coding <strong>and</strong> Modulation<br />

ACORN A Classification of Residential Neighborhoods<br />

ACS Ad Content Service<br />

AD Activity Detection<br />

ADI Asset Distribution Interface<br />

ADI Asynchronous Digital Interface<br />

Ad-ID Advertising-Digital Interface<br />

ADM Ad Management Service<br />

ADM Add/Drop Multiplexing<br />

ADPCM Adaptive Differential Pulse Code Modulation<br />

ADS Ad Decision Service<br />

ADSL Asymmetric Digital Subscriber Line<br />

ADSL2 Asymmetric Digital Subscriber Line <strong>and</strong> Annex J (Supports higher b<strong>and</strong>width)<br />

ADSL2+ Asymmetric Digital Subscriber Line <strong>and</strong> Annex L (Supports higher b<strong>and</strong>width)<br />

AES Advanced Encryption St<strong>and</strong>ard<br />

AF Abstract Framework

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AF Application Function<br />

AF Assured Forwarding<br />

AGC Automatic Gain Control<br />

Agg-PE Aggregation Provider Edge<br />

AGI Attachment Group Identifier<br />

AGW Access Gateway<br />

AI Artificial Intelligence<br />

AIFS Arbitration InterFrame Space<br />

AIN Advanced Intelligent Network<br />

AIS Alarm Indication Signal<br />

AIT Application Information Table<br />

AKA Authentication <strong>and</strong> Key Agreement<br />

ALG Application Layer Gateway<br />

AM Amplitude Modulation<br />

AM Application Manager<br />

AMA Automatic Message Accounting<br />

AMI Alternate Mark Inversion<br />

AMOL Automated Measurement Of Lineup<br />

A-MPDU Aggregated MAC (Media Access Control) Protocol Data Unit<br />

AMPS Advanced Mobile Phone Service<br />

AMS Asset Management System<br />

ANA Association of National Advertisers<br />

ANC Announcement Controller<br />

ANF Aggregate Noise Factor<br />

ANP Announcement Player<br />

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

AOD Advertising On Dem<strong>and</strong><br />

AOL America On-Line<br />

AoR Address of Record<br />

AP Access Point<br />

AP Automatic Power<br />

APD Avalanche Photo Diode<br />

API Application Programming Interface<br />

APM Alternate Provisioning Mode<br />

APON ATM Passive Optical Network<br />

APON ATM-based Passive Optical Network<br />

Apps Applications<br />

APS Analog Protection System<br />

APSK Amplitude Phase Shift Keying<br />

A-RACF Access – Resource <strong>and</strong> Admission Control Function<br />

ARCNET Attached Resource Computer Network<br />

ARF Advertising Research Foundation<br />

ARIB Association of Radio Industries <strong>and</strong> Businesses<br />

ARIN American Registry of Internet Numbers<br />

ARP Address Resolution Protocol<br />

ARPU Average Revenue per Unit (or User)<br />

ARQ Automatic Repeat Request<br />

AS Application Server<br />

AS Autonomous System<br />

ASAP As Soon As Possible<br />

ASCII American St<strong>and</strong>ard Code for Information Interchange<br />

ASD Authorized Service Domain<br />

ASF Advanced Streaming Format<br />

ASF Advanced Systems Format<br />

ASI Asynchronous Serial Interface<br />

AsiaPac Asia Pacific

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ASIC Application-Specific Integrated Circuit<br />

ASM Any Source Multicast<br />

ASM Asset Management System<br />

ASN Access Service Network<br />

ASP Average Selling Price<br />

ASP Application Service Provider<br />

ASR Access Switch Router<br />

ASTB Advanced Set-Top Box<br />

ASTD American Society for Training <strong>and</strong> Development<br />

ASX Advanced Stream Redirector<br />

AT Advanced Technology<br />

ATA Advanced Technology Attachment<br />

ATDMA Advanced Time Division Multiple Access<br />

A-TDMA Advanced Time Division Multiple Access<br />

ATDMA Asynchronous Time Division Multiple Access<br />

ATE Automated Test Environment<br />

ATIS Alliance for Telecommunications Industry Solutions<br />

ATM Asynchronous Transfer Mode<br />

AToM Any Transport Over MPLS<br />

ATP Adaptive Transmission Protocol<br />

ATSC Advanced Television Systems Committee<br />

ATTN Attenuator<br />

AUP Acceptable Use Policy<br />

AV Audio/Video<br />

AV Audiovisual<br />

AVC Advanced Video Coding<br />

AVI Advanced Video Interface<br />

AVI Audio Video Interleave<br />

AWGN Additive White Gaussian Noise<br />

AWS Advanced Wireless Services<br />

AWT Abstract Window(ing) Toolkit<br />

B2BUA Back-to-Back User Agent<br />

B8ZS Binary 8 Zero Substitution<br />

BA Behavioral Aggregate<br />

BAF Bellcore AMA Format<br />

BB Baseb<strong>and</strong><br />

BB Broadb<strong>and</strong><br />

BBTV Broadb<strong>and</strong> Television<br />

BC Broadcast<br />

BC/NC Broadcast/Narrowcast<br />

BC-BS Backwards-Compatible Broadcast Services<br />

BCID Billing Correlation Identifier<br />

BDF Broadb<strong>and</strong> Digital Forward<br />

BDR Baseb<strong>and</strong> Digital Reverse<br />

BE Best Effort<br />

BER Bit Error Rate<br />

BERT Bit Error Rate Test<br />

BFS Broadcast File System<br />

BGCF Breakout Gateway Control Function<br />

BGF Border Gateway Function<br />

BGP Border Gateway Protocol<br />

BGP-VPLS Border Gateway Protocol-Virtual Private LAN Service<br />

BGW Border Gateway<br />

BICSI Building Industry Consulting Services International<br />

BIF Binary Interchange Format<br />

BIG Broadb<strong>and</strong> Integrated Gateway

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BITS Building Integrated Timing Supply<br />

bits/sym Bits per Symbol<br />

BIU Broadb<strong>and</strong> Interface Unit<br />

BMS Business Management System<br />

BNN Bit-Error-Rate in the Noise Notch<br />

BoD Broadcast on Dem<strong>and</strong><br />

BOM Bill of Material<br />

BOSS Back Office Support System<br />

BP Boundary Point<br />

BP@L1b Baseline Protocol at Level 1b<br />

BPF B<strong>and</strong>-Pass Filter<br />

BPI Baseline Privacy Interface<br />

BPI+ Baseline Privacy Interface Plus<br />

BPL Broadb<strong>and</strong> over Power Lines<br />

BPON Broadb<strong>and</strong> Passive Optical Network<br />

B-PON Broadb<strong>and</strong> Passive Optical Network<br />

bps Bits Per Second<br />

BRAS Broadb<strong>and</strong> Remote Access Server<br />

B-RAS Broadb<strong>and</strong> Remote Access Server<br />

BRI Basic Rate Interface<br />

BRI Br<strong>and</strong> Rating Index<br />

BRS Broadb<strong>and</strong> Radio Service<br />

BS Base Station<br />

BS Broadcast Services<br />

BSC Base Station Controller<br />

BSS Basic Service Set<br />

BSS Business Support System<br />

BTS Base Transceiver Station (Wireless Telephony)<br />

BTS Business Telecom Services<br />

BTSC Broadcast Television Systems Committee<br />

BTU British Thermal Unit<br />

BTU/hr British Thermal Unit Per Hour<br />

BW B<strong>and</strong>width<br />

BW/QAM B<strong>and</strong>width per QAM<br />

BYOI Bring Your Own Infrastructure<br />

C/N Carrier to Noise Ratio<br />

C/N0 Carrier-to-Noise-density Ratio<br />

CA Mgmt Conditional Access Management<br />

CA Call Agent<br />

CA Conditional Access<br />

CA Content Archive<br />

CAB Cable Advertising Bureau<br />

CAC Call Admission Control<br />

CAC Connection Admission Control<br />

CAC Connetiont Admission Control<br />

CAD Computer Aided Design<br />

CAGR Compound Annual Growth Rate<br />

CALA Central America <strong>and</strong> Latin America<br />

CALEA Communications Assistance for Law Enforcement Act<br />

CAN Cellular Access Network<br />

Canitec Camara Nacional de la Industria Television por Cable<br />

CapEx Capital Expenditure<br />

CAPMAN Capacity Management<br />

CAS Channel Associated Signaling<br />

CAS Conditional Access Server<br />

CAS Conditional Access System

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CAT Conditional Access Table<br />

CAT5 Category 5<br />

CATV Community Antenna Television (or Cable Television)<br />

CB Channel Bonding<br />

CB Citizen B<strong>and</strong><br />

CBI Character-Based Interface<br />

CBR Constant Bit Rate<br />

CBT Computer Based Testing (or Training)<br />

CBT Core-Based Trees<br />

CC Convolutional Coding<br />

CCC Circuit Cross Connect<br />

CCCF Call Continuity Control Function<br />

CCCM CPE Controlled Cable Modem<br />

CCDF Complementary Cumulative Distribution Function<br />

CCI Content Control Information<br />

CCI Copy Control Information<br />

CCK Complimentary Code Keying<br />

CCM Channel Change Message<br />

CCM Constant Coding <strong>and</strong> Modulation<br />

CCNR Completion of Calls No Reply<br />

CCP Channel Change Protocol<br />

CCR Call Completion Ratio<br />

CCS Centum Call Seconds<br />

CCS Common Channel Signaling<br />

CCS Completed Call Seconds<br />

CD Chromatic Dispersion<br />

CD Compact Disc<br />

CDC Changed Data Capture<br />

CDC Connected Device Configuration<br />

CDF Channel Definition Format<br />

CDF Charging Data Function<br />

CDMA Code Division Multiple Access<br />

CDN Content Delivery Network<br />

CDN Content Distribution Network<br />

CDPD Cellular Digital Packet Data<br />

CDR Call Detail Record<br />

CD-ROM Compact Disk-Read Only Memory<br />

CDS Content Delivery System<br />

CE Consumer Electronics<br />

CE Content Entity<br />

CE Customer Equipment<br />

CEA Consumer Electronics Association<br />

CEBus Consumer Electronic Bus<br />

CENTREX CENTRal office EXchange service<br />

CEO Chief Executive Officer<br />

CEP Cable Entry Point<br />

CEPCA Consumer Electronics Powerline Communication Alliance<br />

CER Codeword Error Ratio<br />

CES Circuit Emulation Service<br />

CESoPSN Circuit Emulation over Packet Switching Networks<br />

CESoPSN Circuit Emulation Service over Packet Switched Network<br />

CE-VLAN Carrier Ethernet – Virtual Local Area Network<br />

CFO Chief Financial Officer<br />

CFP Contention Free Periods<br />

CG Character Generator<br />

CGMS-A Copy Generation Management System - Analog

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CH CableHome<br />

CH CableHome Host<br />

Ch Channel<br />

CHILA Cable Host Interface Licensing Agreement<br />

CIDR Classless InterDomain Routing<br />

CIFS Common Internet File System<br />

CIM Common Information Model<br />

CIN Call Indentity Number<br />

CIN Converged Interconnect Network<br />

CINIT Centro de Investigacion e Innovacion en Telecomunicaciones (CINIT)<br />

CIR Committed Information Rate<br />

CIT Constrained Image Trigger<br />

CLASS Custom Local Area Signaling Services<br />

CLDC Connected(ion) Limited Device Configuration<br />

CLE Customer Located Equipment<br />

CLEC Competitive Local Exchange Carrier<br />

CLI Comm<strong>and</strong> Line Interface<br />

CLI Cumulative Leakage Index<br />

CLID Caller Identification<br />

CLR Common Language Run-time<br />

CLV Consumer Lifetime Value<br />

CM Cable Modem<br />

CMCI CM (Cable Modem) To CPE (Customer Premises Equipment) Interface<br />

CMIM Cable Modem Interface Mask<br />

CMLA Content Management License Administrator<br />

CMOS Complimentary Metal-Oxide Semiconductor<br />

CMS Call Management Server<br />

CMS Call Management Server<br />

CMTS Cable Modem Termination System<br />

CNAM Calling NAMe<br />

CNAM Calling Name delivery<br />

CNI Customer-to-Network Interface<br />

CNIR Carrier-to-Noise plus Interference Ratio<br />

CNIR Carrier-to-Noise/Ingress Ratio<br />

CNR Carrier-to-Noise Ratio<br />

CO Central Office<br />

CO Connection Oriented<br />

CODEC Coder/Decoder<br />

Codec Encoder/Decoder<br />

COLD Central Office Layout Design<br />

Const Constellation<br />

COPS Common Open Policy Service<br />

CORBA Common Object Request Broker Architecture<br />

CoS Class of Service<br />

COT Central Office Terminal<br />

CP Copy Protection<br />

CPD Common Path Distortion<br />

CPE Customer Premises Equipment<br />

CPE Customer Provided Equipment<br />

CPH Cost Per Household<br />

CPM Cost per Thous<strong>and</strong> Impressions<br />

CPMS Copy Protection Management System<br />

CPPM Copy Protection for Prerecorded Media<br />

CPRM Content Protection for Recordable Media<br />

CPS Content Protection System<br />

CPS Cost Per Subscriber

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CPTWG Copy Protection Technical Working Group<br />

CPU Central Processing Unit<br />

CQ-MOS Conversational Quality Mean Opinion Score<br />

CQoS CableHome Quality of Service<br />

CQP CableHome QoS Portal<br />

CRA Contention Resolution Algorithm<br />

CRC Cyclic Redundancy Check<br />

CRG CableHome Residential Gateway<br />

CRL Certificate Revocation List<br />

CR-LDP Constraint-based Label Distribution Protocol<br />

CRM Customer Relationship Management<br />

CS Circuit Switch(ed)<br />

CSC Call Session Controller<br />

CSCF Call Session (or State) Control Function<br />

CSH Central Switch Homerun<br />

CSMA/CA Carrier Sense Multiple Access with Collision Avoidance<br />

CSMA/CD Carrier Sense Multiple Access with Collision Detection<br />

CSO Composite Second Order<br />

CSoD Commercial Services over DOCSIS®<br />

CSR Customer Service Representative<br />

CS-RZ Carrier-Suppressed Return-to-Zero<br />

CSS Content Scramble(ing) System<br />

CSU Channel Service Unit<br />

CSV Comma Separated Value<br />

CTAM Cable & Telecommunications Association for Marketing<br />

CTB Composite Triple Beat<br />

CTC Convolutional Turbo Coding<br />

CTIA Cellular Telecommunications <strong>and</strong> Internet Association<br />

CTO Chief Technology Officer<br />

CTR Customer Trouble Report<br />

CW Codeword<br />

CW Continuous Wave<br />

CWDM Coarse Wavelength Division Multiplexing<br />

CWM Common Warehouse Metamodel<br />

CY Calendar Year<br />

D&B Dun <strong>and</strong> Bradstreet<br />

D/S Downstream<br />

DA Destination Address<br />

DAC Digital Addressable Controller<br />

DARPA Defense Advanced Research Projects Agency<br />

DAS Direct Attached Storage<br />

DAT Digital Audio Tape<br />

DAT DOCSIS ® Set-top Gateway Address Table<br />

DAVIC Digital Audio Visual Council<br />

DB Database<br />

dB Decibel<br />

DBA Dynamic B<strong>and</strong>width Allocation<br />

dBc Decibel Referenced to the Carrier<br />

dBm Decibel milliwatt<br />

dBmV Decibel milliVolt<br />

dBmVrms Decibel milliVolt root mean square<br />

DBPSK Differential Binary Phase Shift Keying<br />

DBS Direct Broadcast Satellite<br />

DC Direct Current<br />

DC Directional Coupler<br />

DC Dispersion Compensator

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DCA Digital Cable Application<br />

D-CAPMAN Dynamic Capacity Management<br />

DCAS Digital Certificate Access Server<br />

DCAS Downloadable Conditional Access System<br />

DCC Data Communication Channel<br />

DCC Dynamic Channel Change<br />

DCD Disconnection Delay<br />

DCD Downstream Channel Descriptor<br />

DCF Dispersion Compensating Fiber<br />

DCF Distributed Coordination Function<br />

DCM Dispersion Compensation Module<br />

DCP Device Control Protocol<br />

DCR Digital Cable Ready<br />

DCS Digital Cross-connect System<br />

DCT Digital Communications (Cable) Terminal<br />

DCT Discrete Cosine Transform<br />

DDNS Dynamic Domain Name Service<br />

DDoS Distributed Denial of Service<br />

DE Default<br />

DE Discard Eligible<br />

DeCSS Defeat Content Scrambling System<br />

DEN Directory-Enabled Networking<br />

DENI Digital Entertainment Networking Initiative<br />

DEPI DOCSIS External Physical Interface<br />

DES Data Encryption St<strong>and</strong>ard<br />

DES Digital Encryption St<strong>and</strong>ard<br />

DF Delivery Function<br />

DFAST Dynamic Feedback Arrangement Scrambling Technique<br />

DFB Distributed Feedback<br />

DHCP Dynamic Host Configuration Protocol<br />

DHCPv6 Dynamic Host Configuration Protocol Version 6<br />

DHCT Digital Home Communications Terminal<br />

DHEI DigiCable Headend Expansion Interface<br />

DHWG Digital Home Working Group<br />

DIA Direct Internet Access<br />

DIBA DOCSIS IPTV Bypass Architecture<br />

DiffServ Differential Services<br />

DiffServ Differentiated Services<br />

DiffServ-TE Differentiated Services – Traffic Engineering<br />

Div Division<br />

DIX DEC-Intel-Xerox<br />

DL Downlink<br />

DLCI Data Link Connection Identifier<br />

DLL Data Link Layer<br />

DLNA Digital Living Network Alliance<br />

DM Degraded Modem<br />

DM Dispersion Mitigation<br />

DMA Demographic Market Area<br />

DMA Designated Marketing Area<br />

DMC Dual Modem Cards<br />

DMCA Digital Millennium Copyright Act<br />

DMH Degraded Modem Hours<br />

DML Direct Modulated Distributed Feedback Laser<br />

DMP Digital Media Project<br />

DMPT DOCSIS MPEG Transport<br />

D-MPT DOCSIS MPEG Transport

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DNCS Digital Network Control System<br />

DNS Domain Name Server/Service<br />

DOCSDIAG DOCSIS Diagnostic Program<br />

DOCSIS Data over Cable Service Interface Specifications<br />

DOCSIS ® Data-Over-Cable Service Interface Specifications<br />

DOCSIS ® -RFI DOCSIS ® Radio Frequency Interface<br />

DoD Department of Defense<br />

DoS Denial of Service<br />

DPI Deep Packet Inspection<br />

DPI Digital Program Insertion<br />

DPON Deep-Fiber Passive Optical Network<br />

DPON DOCSIS over Passive Optical Network<br />

DPSK Differential Phase Shift Keying<br />

DPT Dynamic Packet Transport<br />

DQoS Dynamic Quality of Service<br />

DQPSK Differential Quadrature Phase Shift Keying<br />

DRAM Dynamic R<strong>and</strong>om Access Memory<br />

DRFI Downstream Radio Frequency Interface<br />

DRM Digital Rights Management<br />

DS Digital Signal<br />

DS Downstream<br />

DS0 Digital Signal 0 (zero)<br />

DS1 Digital Signal 1<br />

DS3 Digital Signal 3<br />

DSA Dynamic Service Add<br />

DSA-ACK Dynamic Service Add - Acknowledgement<br />

DSA-REQ Dynamic Service Add – Request<br />

DSA-RSP Dynamic Service Add - Response<br />

DSCP Differentiated Service Code Point<br />

DSG DOCSIS Set-top Gateway<br />

DSID Downstream Service Identifier<br />

DSL Digital Subscriber Line<br />

DSLAM Digital Subscriber Line Access Multiplexer<br />

DSLR Digital Signal Lens Reflex<br />

DSM Digital Storage Media, DNCS Session Manager<br />

DSM-CC UN Digital Storage Media Comm<strong>and</strong> <strong>and</strong> Control User-to-Network<br />

DSM-CC Digital Storage Medium Comm<strong>and</strong> <strong>and</strong> Control<br />

DSP Digital Signal Processor(ing)<br />

DSSS Direct Sequencing Spread Spectrum<br />

D-STB Digital Set-Top Box<br />

DSU Data Service Unit<br />

DS-x Digital Signal (level)<br />

DSX Digital Signal Crossconnect<br />

DSx Dynamic Service Change<br />

DTCP Digital Transmission Content Protection<br />

DTCP/5C Digital Transmission Content Protection/5 Companies<br />

DTD Dial Tone Delay<br />

DTE Data Terminal Equipment<br />

DTH Direct To Home<br />

DTI DOCSIS Timing Interface<br />

DTMF Dual Tone Multi-frequency<br />

DTV Digital Television<br />

DUN Dial-Up Networking<br />

DUT Device Under Test<br />

DV Digital Video<br />

DVB Digital Video Broadcast(ing)

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DVB-ASI DVB (Digital Video Broadcast) Asynchronous Serial Interface<br />

DVB-DSNG DVB (Digital Video Broadcast) Digital Satellite News Gathering<br />

DVB-H/T Digital Video Broadcast –H<strong>and</strong>held/Terrestrial<br />

DVB-MHP Digital Video Broadcast Multimedia Home Platform<br />

DVB-RCS DVB (Digital Video Broadcast) Return Channel via Satellite<br />

DVB-S DVB (Digital Video Broadcast) St<strong>and</strong>ard<br />

DVD Digital Versatile Disc<br />

DVD+R Recordable Digital Versatile Disc<br />

DVD+RW Rewritable Digital Versatile Disc<br />

DVDCCA Digital Versatile Disc Copy Control Association<br />

DVI Digital Video Interface<br />

DVMRP Distance Vector Multicast Routing Protocol<br />

DVR Digital Video Recorder<br />

DVS Digital Video St<strong>and</strong>ard<br />

DVS Digital Video Subcommittee<br />

DWDM Dense Wavelength Division Multiplex<br />

E-1 European format for digital transmission (Equivalent to the North American Digital<br />

Hierarchy T-1)<br />

E²R End-to-End Reconfigurability<br />

EA-DFB Electro-Absorption Modulator Integrated Distributed Feedback Laser<br />

EAP Extensible Authentication Protocol<br />

EAS Emergency Alert System<br />

EBIF Enhanced (TV) Binary Interchange Format<br />

eBIF Enhanced Binary Interchange Format<br />

EBITDA Earnings Before Interest, Taxes, Depreciation, <strong>and</strong> Amortization<br />

eCM Embedded Cable Modem<br />

ECM Entitlement Control Message<br />

ECM:EPS Embedded Cable Modem: Embedded Portal Option<br />

ECN Engineering Change Notification<br />

ECO Engineering Change Order<br />

ECR Efficient Consumer Response<br />

ECR Engineering Change Request<br />

EDC Electronic Dispersion Compensator<br />

EDCA Enhanced Distributed Channel Access<br />

EDFA Erbium Doped Fiber Amplifier<br />

EDGE Enhanced Data Rates for Global Evolution<br />

eDOCSIS Embedded Data-Over-Cable Service Interface Specifications<br />

EF Expedited Forwarding<br />

EFM Ethernet in the First Mile<br />

EFMS Error Free Milliseconds<br />

EFS Error Free Seconds<br />

EFSR Error Free Seconds Ratio<br />

EHDR Extended Header<br />

EIA Electronics Industry Association<br />

EIC Entertainment, Information, <strong>and</strong> Communications<br />

EIR Excess Information Rate<br />

EIRP Effective Isotropic Radiated Power<br />

EIS/SCS Event Information Scheduler/SimulCrypt Synchronizer<br />

ELA Ethernet Line Aggregation<br />

E-LAN Ethernet Local Area Network<br />

E-LINE Ethernet Line<br />

E-LSP EXP-Inferred-PSC Label Switch Path<br />

EM Element Manager<br />

EMEA Europe, Middle East <strong>and</strong> Asia<br />

EMI Electro-Magnetic Interference<br />

EMI Encryption Mode Indicator

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EML Externally Modulated Laser<br />

EMM Entitlement Management Message<br />

EMS Element Management System<br />

eMTA Embedded Multimedia Terminal Adapter<br />

EMx Element Manager X<br />

ENDEC Encode/Decode<br />

ENM Estimated Noise Margin<br />

ENR Encryption Not Required<br />

ENUM Electronic Number Mapping<br />

ENUM Electronic Numbers<br />

ENUM Telephone Number Mapping<br />

E-O Electrical-Optical<br />

EoD Entertainment on Dem<strong>and</strong><br />

EoD Everything on Dem<strong>and</strong><br />

EOL End of Line<br />

EoMPLS Ethernet over MPLS<br />

EoRPR Ethernet over Resilient Packet Ring<br />

EoSonet Ethernet over SONET<br />

EP End Point<br />

EPG Electronic Program Guide<br />

EPL Ethernet Private Line<br />

EP-LAN Ethernet Private – Local Area Network<br />

EPN Encryption Plus Nonassertion<br />

EPON Ethernet Passive Optical Network<br />

EPRI Electric Power Research Institute<br />

EQ Equalization<br />

EQAM Edge QAM (Quadrature Amplitude Modulation)<br />

ER Edge Router<br />

ERIM Erasmus Research Institute of Management<br />

ERM Edge Resource Manager<br />

ERMI Electronic Resource Management Initiative<br />

ERT-VR Extended Real Time-Variable Rate<br />

ES Elementary Stream<br />

ES Errored Seconds<br />

ES Exclusive Session<br />

ES/N0 Energy per symbol-to-Noise density Ratio<br />

eSAFE Embedded Service/Application Functional Entity<br />

ESC Embedded Signaling Channel<br />

ESCON Enterprise System Connection<br />

ESCON/FC Enterprise System Connection/Fiber Channel<br />

ESF Extended SuperFrame<br />

ESM EOD Server Manager<br />

ESP Encapsulating Security Payload<br />

ESR Error Seconds Ratio<br />

eSTB Embedded Set-Top Box<br />

ET (<strong>SCTE</strong>’s ) Emerging Technologies Conference<br />

eTOM enhanced Telecom Operations Map<br />

ETSI European Telecommunications St<strong>and</strong>ards Institute<br />

ETTH Ethernet To The Home<br />

ETTx Ethernet To The x (end point)<br />

eTV Enhanced Television<br />

ETV Enhanced Television<br />

EVA Error Vector Analysis<br />

EVC Ethernet Virtual Circuit<br />

EVDO Evolution Data Optimized<br />

EVM Error Vector Magnitude

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EVPL Ethernet Virtual Private Line<br />

EVPL Ethernet Virtual Private Line<br />

EVPLAN Ethernet Virtual Private Local Area Network<br />

EXC Electronic Cross Connect<br />

EX-MOD Externally Modulated<br />

EXP Experimental<br />

FAQ Frequently Asked Question<br />

FastE Fast Ethernet<br />

FBI Federal Bureau of Investigation<br />

FC Fibre Channel<br />

FC-AL Fiber Channel – Arbitrated Loop<br />

FCAPS Fault, Configuration, Accounting, Performance <strong>and</strong> Security<br />

FCC Federal Communications Commission<br />

FCP Fibre Channel Protocol<br />

FCRC Fragment Cyclic Redundancy Check<br />

FCS Frame Check Sequence<br />

FDC Forward Data Channel<br />

FDD Frequency Division Duplex<br />

FDDI Fiber Distributed Data Interface<br />

FDM Frequency Division Multiplexing<br />

FE Fast Ethernet<br />

FE Fast Ethernet<br />

FEC Forward Error Correction<br />

FEC Forwarding Equivalence Class<br />

FF Fast Forward<br />

FFT Fast Fourier Transform<br />

FGPS FEC, Guard time, Preamble, Stuffing bytes<br />

FHCS Fragment Header Check Sequence<br />

FHSS Frequency Hopping Spread Spectrum<br />

FICON Fiber Connection<br />

FIFO First In-First Out<br />

FiOS Fiber Optic System(s)<br />

FIR Finite Impulse Response<br />

FLR Frame Loss Ratio<br />

FLS Frame Loss Seconds<br />

FM Frequency Modulation<br />

FMC Fixed Mobile Convergence<br />

FN Fiber Node<br />

FOADM Fixed Filter Optical Add/Drop Multiplexer<br />

FOD Free on Dem<strong>and</strong><br />

FoD Free Video On Dem<strong>and</strong><br />

FOSC Fiber Optic Splice Closure<br />

FP Fabry-Perot<br />

FQDN Fully Qualified Domain Name<br />

FR Fiber Ring<br />

FR Frame Relay<br />

FRAG Fragmentation<br />

Freq Resp Frequency Response<br />

FRR False Rejection Rate<br />

FRR Fast Re-Route<br />

FSAN Full Service Access Network<br />

FS-CWDM Full Spectrum - Coarse Wave Division Multiplexing<br />

FSK Frequency Shift Keying<br />

FSN Full Service Network<br />

FSO Free Space Optical<br />

FTP File Transfer Protocol

---

FTTB Fiber to the Business<br />

FTTC Fiber to the Curb<br />

FTTH Fiber to the Home<br />

FTTN Fiber to the Node<br />

FTTP Fiber to the Premises<br />

FTTR Fast Time To Repair<br />

FTTU Fiber to the User<br />

FTTW Fiber to the Wireless<br />

FTTWAP Fiber to the Wireless Access Point<br />

FTTx Fiber to the (endpoint)<br />

FTTX Fiber to the Exchange<br />

FUD Fear, Uncertainty <strong>and</strong> Doubt<br />

FW Firewall<br />

FWA Fixed Wireless Access<br />

FWM Four-Wave Mixing<br />

FXO Foreign eXchange Office<br />

FXS Foreign eXchange Station<br />

G2B Go2Broadb<strong>and</strong> SM<br />

GA Genetic Algorithm<br />

GaAs Gallium Arsenide<br />

GAC Genetic-based Admission Control<br />

GARP Generic Attribute Registration Protocol<br />

GB Gigabyte<br />

GB/s Gigabits per Second<br />

GbE Gigabit Ethernet<br />

GBIC Gigabit Interface Converter<br />

Gbps Gigabits per Second<br />

GC Gateway Controller<br />

GCC General Communications Channel<br />

GCF Breakout Gateway Control Function<br />

GDV Group Delay Variation<br />

GE RPR Gigabit Ethernet Resilient Packet Ring<br />

GE Gigabit Ethernet<br />

GEM Globally Executable MHP<br />

GE-PON Gigabit Ethernet Passive Optical Network<br />

GFL Group Flow Label(s)<br />

GFP Generic Framing Procedure<br />

GFP-F Generic Framing Procedure-Framed<br />

GFP-T Generic Framing Procedure-Transparent<br />

GFP-T Transparent Generalized Framing Procedure<br />

GGSN Gateway GPRS (General Radio Packet Service) Support Node<br />

GHz Gigahertz<br />

GigE Gigabit Ethernet<br />

GIGO Garbage In, Garbage Out<br />

GIS Geographic Information System<br />

GMPLS Generalized Multi-Protocol Label Switching<br />

GNT Grant<br />

GOP Group of Pictures<br />

GOPS Graphical Operations per Second<br />

G-PON Gigabit (Ethernet) Passive Optical Network<br />

GPON Gigabit Passive Optical Network<br />

GPRS General Packet Radio Service<br />

GPS Global Positioning System<br />

GQoS Generic Quality of Service<br />

GR Generic Requirement<br />

GRE Generic Routing Encapsulation

---

GRM Global Resource Manager<br />

GRP Gross Rating Point<br />

GRX GPRS (General Packet Radio Service) Roaming eXchange<br />

GS Global Server<br />

GSM Global System for Mobile (communications)<br />

GSMA Global System for Mobile communications Association<br />

GSN GPRS (General Packet Radio Service) Support Node<br />

GSRM Global Session & Resource Management<br />

GSRM Global System Resource Manager<br />

GTP GPRS Tunneling Protocol<br />

GTT Global Title Translation<br />

GUI Graphical User Interface<br />

GUPI Global Universal Provisioning Interface<br />

GVRP GARP VLAN Registration Protocol<br />

GW Gateway<br />

GWC Gateway Controller<br />

H&S Hub <strong>and</strong> Spoke<br />

HA High Availability<br />

HAL Hardware Abstraction Langugae<br />

HAN Home Area Network<br />

HAS Hardware Authentication Server<br />

HAVi Home Audio Video Interoperability<br />

HBO Home Box Office<br />

HCCA Hybrid Coordination function controlled Channel Access<br />

HCF Hybrid Coordination Function<br />

HCRP Hard Copy Cable Replacement<br />

HCS Header Check Sequence<br />

HD Hardware<br />

HD High Definition<br />

HDBH High-Day Busy Hour<br />

HDCP High-b<strong>and</strong>width Digital Content Protection<br />

HDD Hard Disk Drive<br />

HDLC High-Level Data Link Control<br />

HDMI High Definition Multimedia Interface<br />

HDPBH High Day Peak Busy Hour<br />

HD-PLC High Definition-ready Powerline Communications<br />

HDR Header<br />

HDSDI High Definition Serial Digital Interface<br />

HDT Host Digital Terminal<br />

HDTV High Definition Television<br />

HDVoD High Definition Video on Dem<strong>and</strong><br />

HD-VOD High Definition-Video on Dem<strong>and</strong><br />

HE Headend<br />

HEC Headend Controller<br />

HEM Headend Modem<br />

HFC Hybrid Fiber/Coax<br />

HGW Home Gateway<br />

HH HouseHold<br />

HHP Households Passed<br />

Hi-PHY High Performance Physical Layer<br />

HIS High-Speed Internet<br />

HIT Headend Interface Terminal<br />

HITS Headend In The Sky<br />

HLR Home Location Register<br />

HMS Headend Management System<br />

HMS Home Media Server

---

HMS Hybrid Management Sub-layer<br />

HN Home Network<br />

H-Net Home Network<br />

HNv1 Home Networking Version 1<br />

HOD HBO On Dem<strong>and</strong><br />

HOM High-Order Modulation<br />

HomePNA Home Phoneline Networking Alliance<br />

HP Homes Passed<br />

H-PCRF Home Policy <strong>and</strong> Charging Rules Function<br />

HPF High Pass Filter<br />

HPLMN Home Public L<strong>and</strong> Mobile Network<br />

HPNA Home Phoneline Networking Alliance<br />

HPOV Hewlitt Packard Open View<br />

HQ Headquarters<br />

HQ High Quality<br />

HSA High Speed Access<br />

HSD High Speed Data<br />

HSDPA High Speed Downlink Packet Access<br />

HSI High-Speed Internet<br />

HSP Headset Profile<br />

HSS Home Subscriber Server<br />

HSS/HLR High Speed Serial/Home Location Register<br />

HSUPA High Speed Uplink Packet Access<br />

HTML HyperText Markup Language<br />

HTPC Home Theatre Personal Computer<br />

HTTP Hypertext Transfer Protocol<br />

HTTPS Hypertext Transfer Protocol Secure (sockets)<br />

HVAC Heating, Ventilation, <strong>and</strong> Air Conditioning<br />

HVPLS Hierarchical Virtual Private LAN Service<br />

HW Hardware<br />

Hz Hertz<br />

I/O Input/Output<br />

I/Q Incident/Quadrature<br />

IAD Integrated Access Device<br />

IAG Interactive Advertising Guidelines<br />

IAMS Intelligent Asset Management System<br />

IANA Internet Assigned Numbers Authority<br />

IAP Intelligent Access Point<br />

IB In-B<strong>and</strong><br />

IBCF Interconnection Border Control Function<br />

ICB Independent Customer Builds<br />

ICC Instant Channel Change<br />

ICE Information <strong>and</strong> Content Exchange<br />

ICE Interactive Connectivity Establishment<br />

ICE Interchangeable Compressed Elements<br />

ICI Intercarrier Interface<br />

ICMP Internet Control Message Protocol<br />

I-CMTS Integrated Cable Modem Termination System<br />

ICO Incumbent Cable Operator<br />

ICS IMS Convergence Server<br />

i-CSCF Interrogating-Call State/Session Control(ler) Function<br />

ID Identification or Identifier<br />

IDAD Integrated DOCSIS® Access Device<br />

IDE Integrated Development Environment<br />

IDE Integrated Drive (or Device) Electronics<br />

iDEN Integrated Digital Enhanced Network

---

IDP Intrusion Detection <strong>and</strong> Prevention<br />

IDS Intrusion Detection System<br />

IDT Integrated Digital Terminal<br />

IEC International Electrotechnical Commission<br />

IEEE Institute of Electrical <strong>and</strong> Electronic Engineers<br />

IEEE-SA Institute of Electrical <strong>and</strong> Electronics Engineers St<strong>and</strong>ards Association<br />

IETF Internet Engineering Task Force<br />

IF or I/F Intermediate Frequency<br />

IFC Initial First Cost<br />

IGMP Internet Group Management Protocol<br />

IGMP Internet Group Multicast Protocol<br />

IGMPv2 Internet Group Multicast Protocol, version 2<br />

IGMPv3 Internet Group Multicast Protocol, version 3<br />

IGP Interior Gateway Protocol<br />

IKE Internet Key Exchange<br />

ILEC Incumbent Local Exchange Carrier<br />

ILMI Interim Link Management Interface<br />

IM Instant Message(ing)<br />

IMA Inverse Multiplexing for ATM<br />

Imb Imbalance<br />

IMD Interception Mediation Device<br />

IMD Intermodulation Distortion<br />

Impls Resp Impulse Response<br />

IMS IP Multimedia Subsystem<br />

IMSI International Mobile Subscriber Identity<br />

IM-SSF IP Multimedia Services Switching Function<br />

IN Intelligent Network<br />

INA Interactive Network Adaptor<br />

INADDR ARPA Internet Address Address Routing Parameter Area<br />

I-NET Institutional Network<br />

Int Top Level in Internet Domain Name System<br />

IntServ Integrated Services<br />

IO Input Output<br />

IOS Internetworking Operating System<br />

IP Internet Protocol<br />

IPAT Internet Protocol Access Terminal<br />

IP-CAN Internet Protocol Cellular Access Network<br />

IP-CAN Internet Protocol Connectivity Access Network<br />

IPCDN IP over Cable Data Network<br />

IPDR Internet Protocol Data Record<br />

IPDR Internet Protocol Detail Record<br />

IPDR/SP Internet Protocol Detail Record/Streaming Protocol<br />

IPDT Internet Protocol Digital Terminal<br />

IP-Eth Internet Protocol-Ethernet<br />

IPG Interactive Program Guide<br />

IPG Inter-Packet Gap<br />

IPM Intelligent Policy Management<br />

IPMP Intellectual Property Management <strong>and</strong> Protection<br />

IPPV Impulse Pay per View<br />

IPR Intellectual Property Rights<br />

IPSec Internet Protocol Security<br />

IPSTB IP Set-Top Box<br />

IPT Internet Protocol Telephony<br />

IPTA Internet Protocol Transport Agreement<br />

IPTV Internet Protocol Television<br />

IPv4 Internet Protocol version 4

---

IPv6 Internet Protocol version 6<br />

IPX Internetwork Packet Exchange<br />

IR Infrared<br />

IRD Integrated Receiver/Decoder<br />

IRI Industrial Reporting Inc<br />

IRM Intelligent Resource Management<br />

IRR Information Request Response<br />

IRR Internal Rate of Return<br />

IRT Integrated Receiver/Transcoder<br />

IS Information Systems<br />

ISA Integrated Services Architecture<br />

ISA Integrated Services Architecture<br />

ISC Internet Software Consortium<br />

ISCI Industry St<strong>and</strong>ard Coding Identification<br />

iSCSI Internet Small Computer System Interface<br />

ISDN Integrated Services Digital Network<br />

ISI Inter-Symbol Interference<br />

IS-IS Intermediate System-to-Intermediate System<br />

ISM Industrial Scientific Medical<br />

ISMS Integrated Service Management System<br />

ISO International Organization for St<strong>and</strong>ardization<br />

ISP Inside Plant<br />

ISP Internet Service Provider<br />

ISTP Internet Signaling Transport Protocol<br />

ISUP Integrated Services Digital Network User Part<br />

ISV Independent Software Vendor<br />

IT Information Technology<br />

ITA Interactive Television Association<br />

ITIL Information Technology Infrastructure Library<br />

ITU International Telecommunication Union<br />

ITU-T International Telecommunication Union Telecommunication (St<strong>and</strong>ardization Sector)<br />

iTV Interactive Television<br />

IUC Interval Usage Code<br />

IVR Interactive Voice Response<br />

IVRM Intelligent Video Resource Manager<br />

IWF Internetworking Function<br />

IWF InterWorking Function<br />

IXC Interexchange Carrier<br />

IXP Internet Exchange Provider<br />

J2EE Java 2 Enterprise Edition<br />

J2ME Java 2 Mobile Edition<br />

JCP Java Community Process<br />

JMF Java Media Framework<br />

JNI Java Native Interface<br />

JPEG Joint Photographic Experts Group<br />

JSR Java Specification Request<br />

JTA Job Task Analysis<br />

JVM Java Virtual Machine<br />

JVT Java Vision Toolkit<br />

k Kilo = 1000<br />

K12 Kindergarten through Grade 12<br />

KB Kilobyte<br />

kb/s Kilobits per Second<br />

kbps Kilobits per Second<br />

KDC Key Distribution Center<br />

KDCF Korea Digital Cable Forum

---

kHz Kilohertz<br />

km Kilometer<br />

KPI Key Performance Indicator<br />

KSA Knowledge, Skills <strong>and</strong> Abilities<br />

ksym/s Kilosymbols Per Second<br />

ksym/sec Kilosymbols Per Second<br />

KTTA Korean Telecommunications Technology Association<br />

kVA 1000 Volt Amperes<br />

kW Kilowatt<br />

l Current<br />

L2 Layer 2<br />

L2TP Layer-2 Tunnel(ing) Protocol<br />

L2TPv3 Layer-2 Tunnel(ing) Protocol Version 3<br />

L2VPN Layer-2 Virtual Private Network<br />

LAN Local Area Network<br />

LATA Local Access <strong>and</strong> Transport Area<br />

LC Local Convergence<br />

LCAS Link Capacity Adjustment Scheme<br />

LCC Life-Cycle Cost<br />

LCP Local Convergence Point<br />

LCS Line Code Signaling<br />

LCT Local Craft Terminal<br />

LD Long Distance<br />

LDAP Lightweight Directory Access Protocol<br />

LDP Label Distribution Protocol<br />

LDPC Low Density Parity Check<br />

LDP-VPLS Label Distribution Protocol-Virtual Private LAN Service<br />

LDS Local Digital Switch<br />

LEA Law Enforcement Agency<br />

LEC Local Exchange Carrier<br />

LED Light Emitting Diode<br />

LEN Length<br />

LER Label Edge Router<br />

LERG Local Exchange Routing Guide<br />

LFA Long Format Advertising<br />

LH DWDM Long Haul Dense Wave Division Multiplex<br />

LIDF Lawful Intercept Delivery Function<br />

LIU Line Interface Unit<br />

LLC Logical Link Control<br />

LLD Logical Link Identifier<br />

L-LSP Label-Only-Inferred-PSC LSP<br />

LMDS Local Multipoint Distribution System<br />

LMI Link Management Interface<br />

LMP Link Management Protocol<br />

LNB Low Noise Block-downconverter<br />

LNP Local Number Portability<br />

LO Local Origination<br />

LOADM Lightweight Optical Add/Drop Multiplexer<br />

LOF Loss of Frame<br />

LOPS Loss of Packet Sync<br />

LOS Line Of Sight<br />

LOS Loss of Signal<br />

LovSAN a.k.a The Blaster Worm<br />

LP Long Play<br />

LPCM Linear Pulse Code Modulation<br />

LPF Local Policy Function

---

LQ-MOS Listening Quality Mean Opinion Score<br />

LRU Least Recently Used<br />

LSB Least Significant Byte<br />

LSP Label Switched Path<br />

LSP Layered Service Provider<br />

LSP Legacy Set-top Profile<br />

LSR Label Switch Router<br />

LTE Long Term Evolution<br />

LTS Long Term Storage<br />

LUA Last User Activity<br />

LVI Low Voltage Integrator<br />

LWP Low Water Peak<br />

M/U Modulator/Upconverter<br />

M13 Multiplexer for DS1 to DS3 signals<br />

M3UA MTP-3 User Adaptation<br />

mA Milliamp<br />

MAC Media Access Control<br />

MAC Moves, Adds, Changes<br />

MACD Moves, Adds, Changes, Deletes<br />

MAN Metropolitan Area Network<br />

MAP Main Audio Program<br />

MAP Mobility Application Protocol<br />

MARCOM Marketing & Communications<br />

MAS MPEG-Aware Switch<br />

MB Media Bundle<br />

MB Megabyte<br />

Mb/s Megabits per Second<br />

MB/s Megabytes per Second<br />

Mbaud Megabaud<br />

Mbits/sec Megabits per Second<br />

Mbps Megabits per Second<br />

MBps MegaByte per Second<br />

MBS Mission Bit Stream<br />

M-CMTS Modular Cable Modem Termination System<br />

MCP Mini-Carousel Protocol<br />

MC-PC Media Center Personal Computers<br />

MCPC Multiple Channel Per Carrier (Satellite transmission)<br />

MCTF Motion Compensated Temporal Filtering<br />

MD5 Message-Digest Algorithm<br />

MDA Model Driven Architecture<br />

MDN Mobile Directory Number<br />

MDR Mobile Digital Recorder<br />

MDU Multiple Dwelling Unit<br />

mDVR Multi-TV Digital Video Recorder<br />

MEA Mesh Enabled Architecture<br />

MEF Metro Ethernet Forum<br />

MEMS Micro-Electro-Mechanical Systems<br />

MEN Metro Ethernet Network<br />

MER Modulation Error Ratio<br />

MF Multifield<br />

MF Multifrequency<br />

MFM Multi-Flow Multicast<br />

MG Media Gateway<br />

MGC Media Gateway Controller<br />

MGC Media Gateway Controller<br />

MGCF Media Gateway Control Function

---

MGCP Media Gateway Control Protocol<br />

MGCP Media Gateway Control Protocol<br />

MGW Media Gateway<br />

MHP Multimedia Home Platform<br />

MHz Megahertz<br />

MIB Management Information Base<br />

MIC Message Integrity Check<br />

MIDI Musical Instrument Digital Interface<br />

MIDP Mobile Information Device Profile<br />

MIMO Multiple Input, Multiple Output<br />

MIMO Multiple Input, Multiple Output<br />

MIP Mobile IP<br />

MIPS Millions of Instructions per Second<br />

MITM Man in the Middle<br />

ML/MP Main Level/Main Profile<br />

MLB Medium-to-Large Business<br />

MLD Multicast Listener Discovery<br />

MLD Multicast Listener Discovery<br />

MLPPP Multi-Link Point to Point Protocol<br />

MM Multimedia<br />

MMA Media Management Agent<br />

MMD Multipoint Microwave Distribution<br />

MMG Massively Multiplayer Game<br />

MMI Man Machine Interface<br />

MMS Multimedia Message System<br />

MNO Mobile Network Operator<br />

MNO Mobile Network Operator<br />

MoCA Multimedia Over Coax Alliance<br />

MOD Movies on Dem<strong>and</strong><br />

MOF Meta Object Facility<br />

MOS Mean Opinion Score<br />

MOS-CQ Mean Opinion Score-Conversational Quality<br />

MOS-LQ Mean Opinion Score-Listening Quality<br />

MOSPF Multicast Open Shortest Path First<br />

MOSSI MCMTS Operations Support System Interface<br />

MOSSI Modular Open Source Software Institute<br />

MOU Minutes Of Use<br />

MP Media Player<br />

MP@ML Main Profile at Main Level<br />

MP2MP Multipoint to Multipoint<br />

MP3 MPEG (Moving Pictures Expert Group)-1, (Audio) Layer 3<br />

MPBGP MultiProtocol Border Gateway Protocol<br />

MPC Master Planned Communities<br />

MPC Media Player Controller<br />

MPCP Multipoint Control Protocol<br />

MPDU MAC (Media Access Control) Protocol Data Unit<br />

MPEG Moving Pictures Expert Group<br />

MPEG-1 Moving Pictures Expert Group – Layer 1<br />

MPEG-2 Moving Pictures Expert Group – Layer 2<br />

MPEG2-TS MPEG2-Transport Stream<br />

MPEG-4 Moving Pictures Expert Group – Layer 4<br />

MPEG-TS Moving Pictures Expert Group Transport Stream<br />

MPEGTS MPEG Transport Stream<br />

MPLS Multiprotocol Label Switching<br />

MPLS-eth Multiprotocol Label Switching-Ethernet<br />

MPLS-FRR MultiProtocol Label Switching Fast Reroute

---

MPLS-TE MPLS – Traffic Engineering<br />

MPLS-TE MultiProtocol Label Switching Traffic Engineering<br />

MPT MPEG Transport<br />

MPTS Multi-Program Transport Stream<br />

MQ Medium Quality<br />

M-QAM M-ary Quadrature Amplitude Modulation<br />

MRC Media Resource Center<br />

MRF Multimedia Resource Function<br />

MRFC Multimedia Resource Function Controller<br />

MRFP Multimedia Resource Function Processor<br />

MRTG Multi Router Traffic Grapher<br />

MS Media Servers<br />

ms Millisecond<br />

MS Mobile Station<br />

MSA Metropolitan Statistical Area<br />

MSA300 St<strong>and</strong>ard 10 Gigabit Ethernet Connector<br />

MSB Most Significant Byte<br />

MSC Message Sequence Chart<br />

MSC Mobile Switching Center<br />

MSC Mobile Switching System<br />

MSDP Multicast Source Discovery Protocol<br />

msec Millisecond<br />

MSFT Microsoft Corporation<br />

MSO Multiple System Operator<br />

MSPP Multi-Service Provisioning Platform<br />

Msps Mega-Symbols per Second<br />

MSR Mesh Scalable Routing<br />

MSTP Multi Service Transport Platform<br />

MSTP Multiple Spanning Tree Protocol<br />

Msym Symbol Rate<br />

MTA Multimedia Terminal Adapter<br />

MTBF Mean Time Between Failures<br />

MTP-3 Message Transfer Part Level 3<br />

MTTD Mean Time to Diagnose<br />

MTTF Mean-Time-To-Failure<br />

MTTR Mean Time To Repair<br />

MTTU Mean Time to Underst<strong>and</strong><br />

MTU Maximum Transmission Unit<br />

MUG Multimedia Home Platform Umbrella Group<br />

MULPI MAC <strong>and</strong> Upper Layer Protocol Interface<br />

MUX Multiplexer<br />

mV Millivolt<br />

MVNO Mobile Virtual Network Operator<br />

MVoD Mobile Video on Dem<strong>and</strong><br />

MVPD Multi-channel Video Programming Distributor<br />

MWG Media GateWay<br />

MWR Mesh Wireless Router<br />

MZ Mach-Zehnder<br />

NACK Negative Acknowledgement<br />

NANPA North American Numbering Plan Administration<br />

NAP Network Access Point<br />

NAPT Network Address <strong>and</strong> Protocol Translation<br />

NAPTR Naming Authority Pointer<br />

NAS Network Attached Storage<br />

NASS Network Attached Storage System<br />

NAT Network Address Translation

---

NBC-BS Non Backwards-Compatible Broadcast Services<br />

NBI Northbound Interface<br />

NCM Next Century Media<br />

NCS Network-based Call Signaling<br />

NCTA National Cable & Telecommunications Association<br />

ND Neighbor Discovery<br />

NDA Non-Disclosure Agreement<br />

NDE Network Dimensioning Engine<br />

NDMH Non-Degraded Modem Hours<br />

NDVR Network Digital Video Recorder<br />

NE Network Element<br />

NEBS Network Equipment Building System<br />

NeDS Network Domain Selection<br />

NEMA National Electrical Manufactures Association<br />

NEMS Network Element Management System<br />

NETBIOS Network Version of Basic Input/Output System<br />

NF Noise Figure<br />

NFM Narrowb<strong>and</strong> FM<br />

NFS Network File System<br />

NG STB Next Generation Set Top Box<br />

NG Next Generation<br />

NG-L1 Next Generation Layer 1<br />

NGN Next Generation Network<br />

NGNA Next Generation Network Architecture<br />

NGO Non-Government Organization<br />

NGOD Next Generation On Dem<strong>and</strong><br />

ngOSS Next Generation Operations Systems <strong>and</strong> Software<br />

ng-SONET Next Generation Synchronous Optical NETwork<br />

NI Network Interface<br />

NIC Network Interface Card<br />

NID Network Interface Device<br />

NIS Network Infrastructure Solutions<br />

NIST National Institute of St<strong>and</strong>ards <strong>and</strong> Technology<br />

NIT Network Information Table<br />

NIU Network Interface Unit<br />

NLOS Non-Line of Sight<br />

NLS Network Layer Signaling<br />

nm Nanometer<br />

NmAccess Network Management Access<br />

NMC Network Media Center<br />

NMS Network Management System<br />

NNI Network-Network Interface<br />

NNOC National Network Operations Center<br />

NNTP Network News Transfer Protocol<br />

NOC Network Operations Center<br />

NP Number Portability<br />

NPAC Number Portability Administration Center<br />

n-PE Network (Device) Provider Edge<br />

NPR Noise Power Ratio<br />

NPV Net Present Value<br />

nPVR Network-based Personal Video Recorder<br />

nQAM Unspecified QAM<br />

NRSS National Renewable Security St<strong>and</strong>ard<br />

NRT VBR Non-Real Time Variable Bit Rate<br />

NRTC National Rural Telecommunications Cooperative<br />

nRTP Non Real-time Transport Protocol

---

nrtPS Non-Real Time Polling Service<br />

NRT-VR Non Real Time-Variable Rate<br />

NRZ NonReturn to Zero<br />

ns Nanosecond<br />

NS Neighbor Solicitation<br />

NSI Network Side Interface<br />

NSIS Next Steps in Signaling<br />

NSP Network Service Provider<br />

NTP Network Time Protocol<br />

NTS Near Term Storage<br />

NTSC National Television System Committee<br />

NVM Non-Volatile Memory<br />

NVOD Near Video on Dem<strong>and</strong><br />

NW Network<br />

O/E Optical Signal-to-Electrical Signal conversion<br />

OA&M Operations, Administration & Maintenance<br />

OADM Optical Add/Drop Multiplexer<br />

OAM Operations, Administration, Management<br />

OAM&P Operations, Administration, Maintenance <strong>and</strong> Provisioning<br />

OASIS Organization for the Advancement of Structured Information St<strong>and</strong>ards<br />

OCAP OpenCable Application Platform<br />

OC-CC OpenCable CableCARD<br />

OC-CFR OpenCable - Core Functional Requirements<br />

OCn Optical Carrier (level)<br />

OCn Optical Carrier (level)<br />

OCS Online Charging System<br />

OCSP Online Certificate Status Protocol<br />

OCST Office of Cable Signal Theft<br />

OC-x Optical Carrier (level)<br />

OCXO Oven Controlled Crystal Oscillator<br />

ODA Outlet Digital Adapter<br />

ODRL Open Digital Rights Language<br />

ODU Optical Data Unit<br />

ODU-1 Optical Data Unit – Level 1<br />

OE Optical Ethernet<br />

O-E Optical-Electrical<br />

OEM Original Equipment Manufacturer<br />

O-E-O Optical-to-Electrical-to-Optical<br />

OEPL Optical Ethernet Private Line<br />

OEPLAN Optical Ethernet Private Local Area Network<br />

OEVPL Optical Ethernet Virtual Private Line<br />

OEVPLAN Optical Ethernet Virtual Private Local Area Network<br />

OFC Optical Fiber Communication<br />

OFCS Offline Charging System<br />

OFDM Orthogonal Frequency Division Multiplexing<br />

OFDMA Orthogonal Frequency Division Multiple Access<br />

OH Overhead<br />

OIU Organizationally Unique Identifier<br />

OJT On-The-Job Training<br />

OLA Optical Line Amplifier<br />

OLT Optical Line Terminal (or Termination)<br />

OM Order Management<br />

OMA Open Mobile Alliance<br />

OMG Object Management Group<br />

ONDS Optical Node Distribution Switch<br />

ONT Optical Network Terminal

---

ONU Optical Network Unit<br />

OOB Out-of-B<strong>and</strong><br />

OOF Out of Frame<br />

OOK On-Off-Keying<br />

OOM Order Of Magnitude<br />

OOO Optical-Optical-Optical<br />

OpEx Operating Expenses<br />

OPVC1 Optical channel Payload Virtual Container-Level 1<br />

ORX Optical Receiver<br />

OS Operating System<br />

OSA SCS Open Service Access-Service Capability Server<br />

OSA Open Service Access<br />

OSC Optical Supervisory Channel<br />

OSCT Operational Service Communications Tool<br />

OSDE Open Service Delivery Environment<br />

OSGi Open Services Gateway Initiative<br />

OSI Open Systems Interconnect<br />

OSMINE Operations Systems Modification for the Integration of Network Elements<br />

OSNR Optical Signal-to-Noise Ratio<br />

OSP Outside Plant<br />

OSPF Open Shortest Path First<br />

OSPF-TE Open Shortest Path First with Traffic Engineering<br />

OSS Operation Support System<br />

OSSI Operational Support System Interface<br />

OSW Optical SWitch<br />

OTA Over-the-Air<br />

OTDR Optical Time Domain Reflectometer<br />

OTN Optical Transition Node<br />

OTN Optical Transport Network<br />

OTTP Over-The-Top Provider<br />

OTU2 Optical Transport Channel Unit 2<br />

OTU-N Optical Transport Unit<br />

OTX Optical Transmitter<br />

OUI Organizationally Unique Identifier<br />

OWG OnRamp Working Group<br />

OXC Optical Cross Connect<br />

P/E Profits to Earnings<br />

P2MP Point to Multipoint<br />

P2P LSP Peer-to-Peer Layered Service Provider<br />

P2P Peer to Peer<br />

P2P Point to Point<br />

PAC Personal Air Communication technology protocol<br />

P2PE Point-to-Point Emulation<br />

PABX Private Automatic Branch Exchange<br />

PAC Personalized Adaptive Coding<br />

PAC Provisioning, Activation <strong>and</strong> Configuration<br />

PACM Provisioning, Activation, Configuration <strong>and</strong> Management<br />

PAM PacketCable Application Manager<br />

PAM Pulse Amplitude Modulation<br />

PAMS Passive Acoustic Monitoring System<br />

PAMS Perceptive Analysis Measurement System<br />

PAN Personal Area Network<br />

PAR Project Authorization Request<br />

PARM Parameter<br />

PAT Port Address Termination<br />

PAT Program Association Table

---

PBBTE Provider Backbone Bridging with Traffic Engineering<br />

PBH Peak Busy Hour<br />

PBIA Personal Broadb<strong>and</strong> Industry Association<br />

PBM Program Based Mosaic<br />

PBNM Policy-Based Network Management<br />

PBP Personal Basis Profile<br />

PBR Policy Based Routing<br />

PBT Provider Backbone Transport<br />

PBX Private Branch Exchange<br />

PC PacketCable<br />

PC Personal Computer<br />

PC1 Packet Cable version1<br />

PC2.0 PacketCable 2.0<br />

PCI Peripheral Connect Interface<br />

PCM Pulse Code Modulation<br />

PCMCIA Personal Computer Memory Card Interface Adaptor<br />

PCMCIA Personal Computer Memory Card International Association<br />

PCMM PacketCable Multimedia<br />

PCR Peak Cell Rate<br />

PCR Program Clock Reference<br />

PCRF Policy <strong>and</strong> Charging Rules Function<br />

PCS Personal Communications System<br />

P-CSCF Proxy-Call Session Control(ler) Function<br />

PDA Personal Digital Assistant<br />

PDD Post-dial Delay<br />

PDF Policy Decision Function<br />

PDF Policy Distribution Function<br />

PDF Probability Density Function<br />

PDG Packet Data Gateway<br />

PDH Plesiochronous Digital Hierarchy<br />

PDI Path Defect Indicator<br />

PDL Polarization Dependent Loss<br />

PDN Public Data Network<br />

PDP Packet Data Protocol<br />

PDP Policy Decision Point<br />

PDSN Packet Data Serving Node<br />

PDU Protocol Data Unit<br />

PDW Polarization Dependent Wavelength<br />

PEF Policy Enforcement Function<br />

PEG Pain per Eyeball Gained<br />

PEG Public, Education, Government<br />

PEI Policy Enforcement Interface<br />

PEP Policy Enforcement Point<br />

PER Packet Error Rate<br />

PESQ Perceptual Evaluation of Speech Quality<br />

PF Policy Function<br />

PHB Prescribed per Hop Behavior<br />

PHS Packet Header Suppression<br />

PHS Payload Header Suppression<br />

PHY Physical (layer)<br />

PIC Photonic Integrated Circuit<br />

PID Packet Identifier<br />

PID Program Identifier<br />

PIM Protocol Independent Multicast<br />

PIM-DM Protocol Independent Multicast-Dense Mode<br />

PIM-SM Protocol Independent Multicast – Sparse Mode

---

PIN Positive-Intrinsic-Negative<br />

PIN Personal Identification Number<br />

PING Packet Internet Groper<br />

PIP Picture In Picture<br />

PKI Public Key Infrastructure<br />

PKM Privacy <strong>and</strong> Key Management<br />

PKT Packet<br />

pktc PacKeT Cable<br />

PL Packet Loss<br />

PLC Packet Loss Concealment<br />

PLC Powerline Communications<br />

PLMN Public L<strong>and</strong> Mobile Network<br />

PLT Powerline Telecommunications<br />

PM Performance Monitoring<br />

PM Phase Modulation<br />

PMD Polarization Mode Dispersion<br />

PMK Pairwise Master Key<br />

PMP Point to MultiPoint<br />

PMP Portable Media Player<br />

PMT Program Map Table<br />

PN Program Number<br />

PO Purchase Order<br />

PoC Push to talk over Cellular<br />

POD Point of Deployment<br />

POF Plastic Optical Fiber<br />

POH Path Overhead<br />

PON Passive Optical Network<br />

PON Passive Optical Network<br />

POP Point Of Presence<br />

POP3 Post Office Protocol 3<br />

POS Packet Over SONET<br />

POS Point of Sale<br />

POTS Plain Old Telephone Service<br />

p-p Peak to peak<br />

PPD Post-pickup Delay<br />

PPE Programmable Processing Element(s)<br />

PPmux Point-to-Point Multiplexer<br />

PPP Point-to-Point Protocol<br />

PPPoA PPP over ATM<br />

PPPoE Point-to-Point Protocol over Ethernet<br />

pps packets per second<br />

PPS Packets Per Second<br />

PPT Power Passing Tap<br />

PPTP Point-to-Point Tunneling Protocol<br />

PPV Pay Per View<br />

PQ Picture Quality<br />

PRBS Pseudo-R<strong>and</strong>om Binary Sequence<br />

PRBS Pseudo-R<strong>and</strong>om Bits Stream<br />

PRCF Positioning Radio Coordination Function<br />

PRI Primary Rate Interface<br />

PRM Polarization Recovery Module<br />

PRNG Pseudo R<strong>and</strong>om Number Generators<br />

PRV Privacy<br />

PS Packet Switch<br />

PS Policy Server<br />

PS Portal Services

---

PS Power Supply<br />

PS Provisioning Server<br />

PSA PacketCable Service Agreement<br />

PS-CN Packet Switched Core Network<br />

PSD Power Spectral Density<br />

PSI Program Specific Information<br />

PSIP Program <strong>and</strong> System Information Protocol<br />

PSK Phase Shift Keying<br />

PSK PreShared Key<br />

PSN Packet Switched Network<br />

PSP Packet Streaming Protocol<br />

PSP Packet Success Probability<br />

PSP Play Station Portable<br />

PSQ Packet Streaming Queue<br />

PSQM Perceptual Speech Quality Measurement<br />

PSTN Public Switched Telephone Network<br />

Pt to Pt Point to Point<br />

PTK Pairwise Temporal Key<br />

PTP Point To Point<br />

PTS Program Transport Stream<br />

PTT Postal, Telegraph <strong>and</strong> Telephone<br />

PTT Push to Talk<br />

PTV PowerTV<br />

PUSC Partial Usage of Subchannels<br />

PV Present Value<br />

PVC Permanent Virtual Circuit/Connection<br />

PVC Private Virtual Circuit<br />

PVR Personal Video Recorder<br />

PVT Provider VLAN Transport<br />

PW Pseudo Wire<br />

PWE3 Pseudowire Emulation Edge-to-Edge<br />

PWE3 Pseudo-Wire End-to-End Working Group<br />

Q1 Quarter 1<br />

QA Quality Assurance<br />

QAM Quadrature Amplitude Modulation<br />

QBP QoS Boundary Point<br />

QCC QoS Characteristics Management Client<br />

QCIF Quarter Common Intermediate Format<br />

QCS QoS Characteristics Management Server<br />

QEF Quasi-Error Free<br />

QFM QoS prioritized Forwarding <strong>and</strong> Media Access<br />

QoE Quality of Experience<br />

QoS Quality of Service<br />

QPSK Quadrature Phase Shift Keying<br />

R&D Research <strong>and</strong> Development<br />

R.H. Relative Humidity<br />

RA Router Advertisement<br />

RACF Resource Access Control Function<br />

RACS Resource <strong>and</strong> Admission Control Sub-system<br />

RADD Remote Addressable DANIS/DLS<br />

RADIUS Remote Authentication Dial-in User Service<br />

RAI Remote Alarm Indication<br />

RAID Redundant Array of Inexpensive Disks<br />

RAM R<strong>and</strong>om Access Memory<br />

RAN Radio Access Network<br />

RAN Regional Area Network

---

RAP Regional Access Point<br />

RAP Resource Allocation Protocol<br />

RBOC Regional Bell Operating Company<br />

RBW Resolution B<strong>and</strong>width<br />

RC Redistribution Control<br />

RCA Root Cause Analysis<br />

RCEF Resource Control <strong>and</strong> Enforcement Function<br />

RCV Receiver<br />

RDC Reverse Data Channel<br />

RDF Resource Description Framework<br />

RDI Remote Defect Indicator<br />

RDI Remote Detection Indication<br />

REL Rights Expression Language<br />

REN Ringer Equivalence Number<br />

REQ Request<br />

ResApp Resident Application<br />

RESV Reservation<br />

REW Rewind<br />

RF Radio Frequency<br />

RFC Request for Comment<br />

RFI Request for Information<br />

RFP Request for Proposal<br />

RG Residential Gateway<br />

RIAA Recording Industry Association of America<br />

RIN Relative Intensity Noise<br />

RIP Routing Information Protocol<br />

RISC Reduced Instruction Set Computer<br />

RJ Registered Jack<br />

RKS Record Keeping Server<br />

RM Resource Manager<br />

RMS Root Mean Square<br />

RNC Radio Network Controller<br />

RNOC Regional Network Operations Center<br />

RO Read Only<br />

ROADM Reconfigurable Optical Add/Drop Multiplexer<br />

ROAP Rights Object Acquisition Protocol<br />

ROB Return on B<strong>and</strong>width<br />

ROI Return on Investment<br />

ROM Read Only Memory<br />

RP Rendezvous Point<br />

RPD Return Path Demodulator<br />

RPF Reverse Path Forwarding<br />

RPM Revolutions per Minute<br />

RPR Resilient Packet Ring<br />

RS Reed-Solomon<br />

RS Router Solicitation<br />

RSA Reed-Solomon Association<br />

RSA Rivest Shamir Adleman<br />

RSS Rich Site Summary or Really Simple Syndication<br />

RSTP Rapid Spanning Tree Protocol<br />

RSVP Resource reSerVation Protocol<br />

RSVP-TE Resource Reservation Protocol with Traffic Engineering<br />

RT VBR Real-Time Variable Bit Rate<br />

RT Real Time<br />

RTA Real Time Acquisition<br />

RTA Real Time Asset

---

RTCP Real time Transmission Control Protocol<br />

RTCP-XR Real time Transmission Control Protocol-Extended Reports<br />

RTD Round Trip Delay<br />

RTE Real Time Encoder<br />

RTI Real Time Ingest<br />

RTN Regional Transport Network<br />

RTOS Real Time Operating System<br />

RTP Real Time Protocol<br />

RTP Real-time Transport Protocol<br />

RTPS Real Time Polling Service<br />

rtPS Real Time Polling Service<br />

RTSP Real Time Streaming Protocol<br />

RTT Round-Trip Time<br />

RT-VR Real Time-Variable Rate<br />

RU Rack Unit<br />

RU Revenue Unit<br />

RW Rewind<br />

RX Receive or receiver<br />

RxMER Receive Modulation Error Ratio<br />

RZ Return to Zero<br />

RZ-DPSK Return to Zero Differential Phase Shift keying<br />

s.f. Square Foot<br />

S/I Signal-to-Interference Ratio<br />

S/IMP Signal-to-Impulse Ratio<br />

S/N Signal-to-Noise Ratio<br />

SA Scientific Atlanta<br />

SAG Synthetic Analog Gateway<br />

SAID Security Association Identifier<br />

SAII Source Attachment Individual Identifier<br />

SAML Security Assertion Markup Language<br />

SAN Storage Area Network<br />

SAP Secondary Audio Program<br />

SAP Service Access Point<br />

SARA Scientific-Atlanta Resident Application<br />

SATA Serial Advanced Technology Attachment<br />

SAToP Structured Agnostic TDM over Packet<br />

SAW Surface Acoustic Wave<br />

SB Switched Broadcast<br />

SBC Session Border Control(ler)<br />

SBC Switched Broadcast Client<br />

SBM Switched Broadcast Manager<br />

SBS Stimulated Brilliouin Scattering<br />

SBS Switched Broadcast Server<br />

SBV Switched Broadcast Video<br />

SBW Signal B<strong>and</strong>width<br />

SC/APC St<strong>and</strong>ard Connector/ Angled Physical Contact<br />

SCADA Supervisory Control And Data Acquisition<br />

SCC Seamless Content Consumption<br />

S-CDMA Synchronous Code Division Multiple Access<br />

SCIM Service Capability Interaction Manager<br />

SCM Stored Content Manager<br />

SCM Sub-Carrier Multiplexing<br />

SCMS Serial Copy Management System<br />

SCN Service Class Name<br />

SCN Shared Content Network<br />

SCO Synchronous Connection Oriented

---

SCP Service Control Platform<br />

SCR Silicon Controlled Rectifier<br />

SCS Service Capability Server<br />

s-CSCF Serving-Call Session Control Function<br />

SCSI Small Computer System Interface<br />

<strong>SCTE</strong> Society of Cable Telecommunications Engineers<br />

SD Secure Digital<br />

SD St<strong>and</strong>ard Definition<br />

SDB Switched Digital Broadcast<br />

SDC Service Data Center<br />

SDF Service Degradation Failure<br />

SDH Synchronous Digital Hierarchy<br />

SDI Secure Digital Interface<br />

SDIO Secure Digital Input/Output<br />

SDK Software Development Kit<br />

SDL Simple DirectMedia Layer<br />

SDMH Severely Degraded Modem Hours<br />

SDMI Secure Digital Music Initiative<br />

SDP Service Delivery Platform<br />

SDP Session Description Protocol<br />

SDPF Service Policy Decision Function<br />

SDRAM Synchronous Direct R<strong>and</strong>om Access Memory<br />

SDRF Software Defined Radio Forum<br />

SDTV St<strong>and</strong>ard Definition Television<br />

SDV Switched Digital Video<br />

SDVoD St<strong>and</strong>ard Definition Video on Dem<strong>and</strong><br />

SDVOD St<strong>and</strong>ard Definition Video-on-Dem<strong>and</strong><br />

SEM Subscriber Experience Management<br />

SER Symbol Error Rate<br />

SERDES Serializer/Deserializer<br />

SES Severely Errored Seconds<br />

SESR Severely Errored Seconds Ratio<br />

SF Service Flow<br />

SF SuperFrame<br />

SFA Service Flow Authorization<br />

SFID Service Flow Identifier<br />

SFM Service Flow Management<br />

SFM Single-Flow Multicast<br />

SFM Source Filtered Multicast<br />

SFP Small Form-factor Pluggable<br />

SFP Small Form-factor Pluggable<br />

SG Service Group<br />

SG Signaling Gateway<br />

SGC Signaling Gateway Controller<br />

SGSN Serving GPRS Support Node<br />

SGW Security GateWay<br />

SGW Signaling Gateway<br />

SHA-1 Secure Hash Algorithm version 1<br />

SHDB Switched High-Definition Digital Broadcast<br />

SI Service Information<br />

SI System Information<br />

SIC St<strong>and</strong>ard Industrial Classification<br />

SID Service Identifier<br />

SID Shared Information/Data<br />

SIFS Shortest InterFrame Space<br />

SIGTRAN Signal Transmission

---

SIM Subscriber Identity Module<br />

SIP Session Initiation Protocol<br />

SISO Single-Input Single-Output<br />

SLA Service Level Agreement<br />

LC Shorten Last Codeword<br />

SLF Subscription Location Function<br />

SLIC Subscriber Line Interface Card<br />

SLM Signal Level Meter<br />

SM Single Mode<br />

SMB Server Message Block<br />

SMB Small to Medium Business<br />

SME Small to Medium Enterprise<br />

SMF Single Mode Fiber<br />

SMPTE Society of Motion Picture <strong>and</strong> Television Engineers<br />

SMS Service Management System<br />

SMS Short Message Service (or System)<br />

SMSC Short Message Service Center<br />

S-MTA St<strong>and</strong>alone Multimedia Terminal Adaptor<br />

SMTP Simple Mail Transfer Protocol<br />

SMx Segment Manager X<br />

SNA Systems Network Architecture<br />

SNC Sub-Network Connection<br />

SNG Satellite News Gathering<br />

SNI Service-to-Network Interface<br />

SNMP Simple Network Management Protocol<br />

SNR Signal-to-Noise Ratio<br />

SOA Semiconductor Optical Amplifier<br />

SOA Service Oriented Architecture<br />

SOAP Simple Object Access Protocol<br />

SoC Systems on a Chip<br />

S-OFDM Scalable Orthogonal Frequency Division Multiplexing<br />

SOH State of Health<br />

SOHO Small Office/Home Office<br />

SONET Synchronous Optical Network<br />

SP Service Provider<br />

SP Single Program<br />

SPAN Services & Protocols for Advanced Networks<br />

S-PDF Service-based - Policy Decision Function<br />

SPDF Synchronous Piggybacked Data Flow<br />

SPDIF Sony/Philips Digital Interface<br />

SPE Synchronous Payload Envelope<br />

Spec. Specification<br />

SPI Spending Potential Indexes<br />

SPIT SPAM over IP Telephony<br />

SPM Self phase modulation<br />

SPP Serial Port Profile<br />

SPR Subscription Profile Repository<br />

SPTS Single Program Transport Stream<br />

SQL Structured Query Language<br />

SQM Sustainable Quality Management<br />

SR Switch Router<br />

RM Session <strong>and</strong> Resource Manager<br />

SRM Session Resource Manager<br />

SRM System Resource Manager<br />

SRP SIP Routing Proxy<br />

SRS Stimulated Raman Scattering

---

SRTP Secure Real-time Transport Protocol<br />

SRV Server<br />

SS7 Signaling System 7<br />

SSB Single Sideb<strong>and</strong><br />

SSD Solid State Disk<br />

SSF Services Switching Function<br />

SSH Secure Shell<br />

SSID Service Set Identifier<br />

SSL Secure Sockets Layer<br />

SSM Source Specific Multicast<br />

SSMF St<strong>and</strong>ard Single Mode Fiber<br />

SSO Single Sign On<br />

SSP Session Setup Protocol<br />

SSP/SIS Shell Session Protocol / Session Initiation System<br />

StatMux Statistical Multiplexing<br />

STB Set-Top Box<br />

Std St<strong>and</strong>ard<br />

STG Subscriber Telephony Gateway<br />

STL Studio-to-Transmitter Link<br />

STM Synchronous Transfer Mode<br />

STM Synchronous Transport Module<br />

STP Spanning Tree Protocol<br />

STS Synchronous Transport Signal<br />

STS-1 Synchronous Transport Signal – Level 1<br />

STT Set-top Terminal<br />

STTD Space Time Transmit Diversity<br />

STUN Simple Transversal of UDP (User Datagram Protocol) Through NAT (Network<br />

Address Translation)<br />

SU Subscriber Unit<br />

SUT System Under Test<br />

SVG Scalable Vector Graphics<br />

SVOD Subscription Video on Dem<strong>and</strong><br />

SVOD Switched Video on Dem<strong>and</strong><br />

SVP Secure Video Processor<br />

SW Software<br />

SWB Switched Broadcast<br />

SX Short Reach as in 1000Base-SX<br />

SYNC Synchronization Profile<br />

SYSLOG System Log<br />

T&B Traffic & Billing<br />

T1 First level T-Carrier 1 (1.544Mbps Transmission facility)<br />

T3 Third level T-Carrier 3 (44.736Mbps Transmission facility)<br />

TAC Technical Assistance Center<br />

TAII Target Attachment Individual Identifier<br />

TB Terabyte<br />

TBD To Be Determined<br />

Tbps Terabits per Second<br />

TC Transmission Convergence<br />

TCAP Transaction Capabilities Application Part<br />

TCM T<strong>and</strong>em Connection Monitoring<br />

TCM Trellis Coded Modulation<br />

TCO Total Cost of Ownership<br />

TCP Transmission Control Protocol<br />

TCP/IP Transmission Control Protocol/Internet Protocol<br />

TCXO Temperature Controlled Crystal Oscillator<br />

TD-CDMA Time Division-Code Division Multiple Access

---

TDD Telecommunication Devices for the Deaf<br />

TDD Time Division Duplex<br />

TDM Time Division Multiplexing<br />

TDMA Time Division Multiple Access<br />

TDMoDOCSIS Time Division Multiplexing over DOCSIS<br />

TDMoIP Time Division Multiplexing over Internet Protocol<br />

TD-SCDMA Time Division-Synchronous Code Division Multiple Access<br />

TE Traffic Engineering<br />

TEC Triggered Event Comm<strong>and</strong><br />

TELR Talker Echo Loudness Rating<br />

TFF Thin Film Filter<br />

TFTP Trivial File Transfer Protocol<br />

TG Task Group<br />

TGCP Trunking Gateway Control Protocol<br />

TGS Ticket Granting Server<br />

THz Terahertz<br />

TIA Telecommunication Industry Association<br />

TIA TransImpedance Amplifier<br />

TIPHON Telecommunications & Internet Protocol Harmonization Over Networks<br />

TISPAN Telecom & Internet Services & Protocols for Advanced Networks<br />

TKIP Temporal Key Integrity Protocol<br />

TL1 Transaction Language One<br />

TLS Transparent LAN Service<br />

TLS Transport Layer Security<br />

TLV Type, Length, Value<br />

TMPLS Transport MPLS<br />

TN Telephone Number, Timeslot Number, Telecommunications Network, Transit Node<br />

TNCS Transmission Network Control System<br />

TOADM Tunable Optical Add/Drop Multiplexer<br />

TOD Television on Dem<strong>and</strong><br />

ToD Time of Day<br />

ToF Time of Flight<br />

TOS Theft of Service<br />

TOS Type of Service<br />

TPL TDM Private Line<br />

TR Technical Reference<br />

TRCF Transport Resource Control Function<br />

TrGW Translation Gateway<br />

TRI Telephony Return Interface<br />

TRP Target Rating Points<br />

tRTO TCP Retransmit Timeout<br />

TS Transport Stream<br />

TSI Time Slot Interchange<br />

TSID Transport Stream Identifier<br />

TSP TDM Service Processor<br />

T-SPEC Traffic SPECification<br />

TSR Technical Service Representative<br />

TSS Telephony Switching Sub-System<br />

TTL Time To Live<br />

TTLS Tunnel Transparent Layer Security<br />

TTY TeleTYpe<br />

TURN Traversal Using Relay NAT (Network Address Translation)<br />

TV Television<br />

TVOD Television on Dem<strong>and</strong><br />

TWAMP Two-Way Active Measurement Protocol<br />

TWC Time Warner Cable

---

TX Transmit or transmitter<br />

TxMER Transmit Modulation Error Ratio<br />

TXOP Transmission Opportunity<br />

U/S Upstream<br />

UA User Agent<br />

U-ASPD Unscheduled - Automatic Power Save Delivery<br />

UBR Unspecified Bit Rate<br />

UCC Upstream Channel Change<br />

UCD Upstream Channel Descriptor<br />

UCID Upstream Channel Identifier<br />

UDDI Universal Description, Discovery <strong>and</strong> Integration<br />

UDLR Uni-Directional Link Routing<br />

UDP User Datagram Protocol<br />

UDP/IP User Datagram Protocol/Internet Protocol<br />

UDSL Unidirectional Digital Subscriber Line<br />

UDWDM Ultra Dense Wave Division Multiplex<br />

UE User Equipment<br />

UEQ Universal Edge QAM<br />

UGC User Generated Content<br />

UGS Unsolicited Grant Service<br />

UGS/AD UGS with Activity Detection<br />

UHF Ultra High Frequency<br />

UI User Interface<br />

UKL Unit Key List<br />

UL Uplink<br />

UMA Unlicensed Mobile Access<br />

UML Unified Modeling Language<br />

UMTS Universal Mobile Telecommunications System<br />

UNC UMA (Unlicensed Mobile Access) Network Controller<br />

UNE Unbundled Network Element<br />

UNE-P Unbundled Network Element - Platform<br />

UNI User Network Interface<br />

UNI-C User Network Interface – Customer (Network)<br />

UNI-CE User Network Interface – Customer Edge<br />

U-NII Unlicensed National Information Infrastructure<br />

UNI-N User Network Interface – (Provider) Network<br />

UPA Usability Professionals’ Association<br />

uPE User (Device) Provider Edge<br />

UPnP Universal Plug <strong>and</strong> Play<br />

UPS Uninterruptible Power Supply<br />

URI Uniform Resource Identifier<br />

URL Uniform Resource Locator<br />

US Upstream<br />

USB Universal Serial Bus<br />

USD United States Dollar(s)<br />

USF Universal Service Fund<br />

USM User-based Security Model<br />

USRM Universal Session Resource Management<br />

UTI Universal Transport Interface<br />

UTP Unshielded Twisted Pair<br />

UTRAN UMTS Terrestrial Radio Access Network<br />

UWB Ultra Wideb<strong>and</strong><br />

V Voltage<br />

V/A Video/Audio<br />

VAC Volts Alternating Current<br />

VAD Voice Activity Detection

---

VAG Voice Access Gateway<br />

VAR Value Added Reseller<br />

VAS Value Added Service<br />

VBI Vertical Blanking Interval<br />

VBR Variable Bit Rate<br />

VBR Variable Bit Rate<br />

VBR-NRT Variable Bit Rate – Non-Real Time<br />

VBR-RT Variable Bit Rate – Real Time<br />

VC Virtual Channel, Virtual Circuit<br />

VC1 Video Codec 1<br />

VC-1 Video Coding 1 (Formerly VC-9--Soon to be known as SMPTE 421M)<br />

VC-1 Video Compression 1 (Formerly VC-9--Soon to be known as SMPTE 421M)<br />

VCAT Virtual Concatenation<br />

VCC Voice Call Continuity<br />

VCC Voice Call Continuity<br />

VCI Virtual Channel Identifier<br />

VCM Variable Coding <strong>and</strong> Modulation<br />

Vco Voltage Cut Off<br />

VCR Video Cassette Recorder<br />

VDC Volts Direct Current<br />

VDSL Very High-bit-rate Digital Subscriber Line<br />

VDSL2 Very High-bit-rate Digital Subscriber Line 2<br />

VER Virtual Ethernet Ring<br />

VHF Very High Frequency<br />

VHS Video Home System<br />

VL2SI Virtual LAN to Serial Interface<br />

VLAN Virtual Local Area Network<br />

VLL Virtual Leased Line<br />

VLR Visitor Location Register<br />

VLSM Variable Length Subnet Mask<br />

VM Virtual Machine<br />

VMM Vehicular Modem Module<br />

VN Voltage Null<br />

VoD Video on Dem<strong>and</strong><br />

VODoIP Video on Dem<strong>and</strong> over Internet Protocol<br />

VoDSL Video over Digital Subscriber Line<br />

VoIP Voice over Internet Protocol<br />

VoWi-Fi Voice over Wi-Fi<br />

VP Voltage Peak<br />

V-PCRF Visited Policy <strong>and</strong> Charging Rules Function<br />

VPI Virtual Path Identifier<br />

VPL Virtual Private Line<br />

VPLS Virtual Private Label Service<br />

VPLS Virtual Private LAN Service<br />

VPN Virtual Private Network<br />

VPWS Virtual Private Wire Service<br />

VQ Vector Quantization<br />

VQI Voice Quality Index<br />

VRAM Video R<strong>and</strong>om Access Memory<br />

VRF Virtual Routing <strong>and</strong> Forwarding Tables<br />

VRN Video-Rich Navigation<br />

VRNAV Video-Rich Navigation Audio/Visual<br />

VRTX Virtual Real-Time Extension<br />

VS Video Server<br />

VSA Vector Signal Analyzer<br />

VSAT Very Small Aperture Terminal

---

VSB Vestigial Sideb<strong>and</strong><br />

VSG Vector Signal Generator<br />

VSI Virtual Switch Interface<br />

VT Virtual Tributary<br />

VTS Video Transport Service<br />

W Watt<br />

WAG Wireless Access Gateway<br />

WAN Wide Area Network<br />

WAP Wireless Access Point<br />

WAV Windows Wave<br />

WCD Wideb<strong>and</strong> Channel Descriptor<br />

WCDMA Wireless Code Division Multiple Access<br />

WCM Wideb<strong>and</strong> Cable Modem<br />

WCMTS Wideb<strong>and</strong> Cable Modem Termination System<br />

WDM Wave Division Multiplex(ing)<br />

WECA Wireless Ethernet Compatibility Alliance<br />

WEP Wired Equivalent Privacy<br />

WFA Workforce Automation<br />

WFM Wideb<strong>and</strong> FM<br />

WFM Workforce Management<br />

WFQ Weighted Fair Queuing<br />

-Fi Wireless Fidelity<br />

WiMAX Wireless Microwave Access<br />

WiMax Worldwide Interoperability for Microwave Access<br />

WiMedia An alliance for Wireless Multimedia<br />

WIN Wireless Intelligent Network<br />

WIP Work in Process<br />

WIWWIW “What I Want When I Want”<br />

WLAN Wireless Local Area Network<br />

WLL Wireless Local Loop<br />

WM Wave Mixing<br />

WM Wave Multiplexing<br />

WM9 Windows Media Player, version 9<br />

WMA Windows Media Audio<br />

WMAN Wireless Metropolitan Area Network<br />

WMC Wireless Modem Card<br />

WME Wireless Multimedia Extension<br />

WMM Wi-Fi MultiMedia<br />

WMM-SA Wi-Fi MultiMedia St<strong>and</strong>ards Association/Alliance<br />

WMV Windows Media Video<br />

WOFDM Wavelet Orthogonal Frequency Division Multiplexing<br />

WPA Wireless (Wi-Fi) Protected Access<br />

WPA2 Wireless (Wi-Fi) Protected Access 2<br />

WPA-FSK Wireless (Wi-Fi) Protected Access with Pre-Shared Key<br />

WPAN Wireless Personal Area Network<br />

WPE Wireless Plant Extension<br />

WRED Weighted R<strong>and</strong>om Early Detection<br />

WSDL Web Services Definition Language<br />

WSDL Web Services Description Language<br />

WSS Wavelength Selective Switch<br />

WW Worldwide<br />

WWDM Wide WDM<br />

WWRF Wireless World Research Forum<br />

WWW World Wide Web<br />

XAIT Extended Application Information Table<br />

XAUI 10 Gigabit Ethernet Attachment Unit Interface

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xDSL Any variant of the Digital Subscriber Line technology<br />

XENPAK Fiber Optic Transceiver Module conforming to 10GigE St<strong>and</strong>ard<br />

XFP 10-Gigabit Small Form-factor Pluggable GBIC Module<br />

XHTML Extensible Hypertext Markup Language<br />

XMI XML Metadata Interchange<br />

XML Extensible Markup Language<br />

XMOD Cross Modulation<br />

xOD X-service on Dem<strong>and</strong> (i.e., Movies on Dem<strong>and</strong>)<br />

XPM Cross-Phase Modulation<br />

xPON X version of Passive Optical Network<br />

xVOD X version (or form) of Video on Dem<strong>and</strong> (i.e., Subscription, Near, etc.)<br />

xWDM Non-specific form of Wave Division Multiplex<br />

y/y Year Over Year<br />

ZWP Zero Water Peak<br />

ZWPF Zero Water Peak Fiber