Abbreviations and Acronyms - SCTE
Abbreviations and Acronyms - SCTE
Abbreviations and Acronyms - SCTE
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<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
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
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
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
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
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
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
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
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)
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
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
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
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