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  1. 1. QWEST Communications International, Inc. Information Publication Acronyms, Glossary, Ordering Information, and Trademarks1996, 2000© 77001QWEST Communications International Inc. Issue BAll Rights Reserved November 2000
  2. 2. QWEST Tech Pub 77001 NoticeIssue B, November 2000 NOTICEThis information publication describes the Acronyms, Glossary of Terms, Trademarks andOrdering Information that is included in QWEST Publications.QWEST Communications International Inc. reserves the right to revise this document for anyreason, including but not limited to, conformity with standards promulgated by variousgovernmental or regulatory agencies; utilization of advances in the state of the technical arts; or toreflect changes in the design of equipment, techniques, or procedures described or referred toherein.Liability to anyone arising out of use or reliance upon any information set forth herein is expresslydisclaimed, and no representation or warranties, expressed or implied, are made with respect tothe accuracy or utility of any information set forth herein.This document is not to be construed as a suggestion to any manufacturer to modify or change anyof its products, nor does this publication represent any commitment by QWEST CommunicationsInternational Inc. to purchase any specific products. Further, conformance to this publication doesnot constitute a guarantee of a given suppliers equipment and/or its associated documentation.Ordering information for QWEST Technical Publications can be obtained from the ReferenceSection of this document.If further information is required, please contact: QWEST Communications International Inc. Manager – New Services Planning 700 W. Mineral Ave. MN-F15.15 Littleton, CO 80120 (303) 707-7107 (303) 707-9497 Fax # E-mail: jhsmit2@qwest.comThroughout this publication, the term QWEST signifies QWEST Communications International Inc.
  3. 3. QWEST Tech Pub 77001 CommentsIssue B, November 2000 COMMENTS on PUB 77001 PLEASE TEAR OUT AND SEND YOUR COMMENTS/SUGGESTIONS TO: QWEST Corporation Manager – New Services Planning 700 W. Mineral Ave. MN-F15.15 Littleton, CO 80120 (303) 707-7107 (303) 707-9497 Fax # E-mail: jhsmit2@qwest.comInformation from you helps us to improve our Publications. Please take a few moments to answerthe following questions and return to the above address.Was this Publication valuable to you in understandingour requirements? YES ____ NO ____Was the information accurate and up-to-date? YES ____ NO ____Was the information easily understood? YES ____ NO ____Were the contents logically sequenced? YES ____ NO ____Were the tables and figures understandable and helpful YES ____ NO ____Were the pages legible? YES ____ NO ____If you answered NO to any of the questions and/or if you have any other comments or suggestions,please explain:_______________________________________________________________________________________________________________________________________________________________________________________________________________ (Attach additional sheet, if necessary)Name ________________________________________ Date ___________________Company _____________________________________________________________________Address _____________________________________________________________________Telephone Number_____________________________________________________________________E-Mail _____________________________________________________________________
  4. 4. QWEST Tech Pub 77001 Table of ContentsIssue B, November 2000 CONTENTSSection Page1. Introduction......................................................................................................................1-1 1.1 General................................................................................................................1-1 1.2 Reason For Reissue .............................................................................................1-1 1.3 Scope...................................................................................................................1-12. Acronyms.........................................................................................................................2-13. Glossary ..........................................................................................................................3-14. Ordering Information.......................................................................................................4-15. Trademarks......................................................................................................................5-1 TOC-i
  5. 5. QWEST Tech Pub 77001 Chapter 1Issue B, November 2000 Introduction CONTENTSChapter and Section Page1. Introduction....................................................................................................................1-3 1.1 General..............................................................................................................1-3 1.2 Reason For Reissue ...........................................................................................1-3 1.3 Scope.................................................................................................................1-3 TOC 1-i
  6. 6. QWEST Tech Pub 77001 Chapter 1Issue B, November 2000 Introduction1. Introduction1.1 GeneralThis information publication describes the Acronyms, Glossary of Terms, Trademarks andOrdering Information that is included in QWEST Publications.1.2 Reason For ReissueThis publication is being reissued to show changes in company information. US WEST is NowQWEST.1.3 ScopeThe information provided in this document includes Definitions for the Glossary of Terms andAcronyms. QWEST has also included Trademarks and the Ordering Information of documentationused by QWEST and its customers. This information will be updated as required.Questions regarding QWEST Technical Publications may be referred to: QWEST Corporation Manager – New Services Planning 700 W. Mineral Ave. MN-F15.15 Littleton, CO 80120 (303) 707-7107 (303) 707-9497 Fax # E-mail: 1-1
  7. 7. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 Acronyms CONTENTSChapter and Section Page2. Acronyms........................................................................................................................ 2-1 TOC 2-i
  8. 8. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 Acronyms2. Acronyms0TLP Zero Transmission Level PointA/D Analog to DigitalABS Alternate Billing Serviceac alternating currentAC Access CustomerACA Account Customers AddressACAT Additional Cooperative Acceptance TestingACCS Automated Calling Card ServiceACD Automatic Call DistributorACE Automatic Cable ExperienceACNA Access Customer Name AbbreviationACR Abnormal Condition ReportACS Advanced Communication ServicesACSE Association Control Service ElementACTL Access Carrier Terminal LocationAD Amendment; for example, IS0 8327 AD2AD4 Advanced D4ADD Aggregate Design DataADM Add/Drop MultiplexerADSI Analog Display Services InterfaceADSR Administration of Designed Service ReviewADTS Automated Digital Terminal SystemAGC Automatic Gain ControlAIC Automatic Intercept CenterAIS 1) Alarm Indication Signal 2) Automated Intercept System (Minicomputer Functions)AL Acceptance LimitALITT Automated Line Insulation TestsAM Amplitude Modulation 2-1
  9. 9. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000AMA Automatic Message AccountingAMA/DDD Automatic Message Accounting/Direct Distance DialingAMI Alternate Mark InversionAML Actual Measured LossAMMS Advanced Material Management SystemAMP Application Management PackageAMPS Advanced Mobile Phone ServiceAMR Accelerated Maintenance RequestANI Automatic Number IdentificationANI/OE Automatic Number Identification/Order Entry -- product -- USW provides for cable companies (pay per view)ANSI American National Standards Institute, Inc.AO Audio Options - the umbrella name for all audio productsAOTT Automatic Outgoing Trunk TestAP Audio ProgramAPMS Air Pressure Monitoring SystemAPOP Alternate Point of PresenceAPOT Actual Point Of TerminationAPP Application DateAPS Automatic Protection SwitchingAPTOS Automated Pricing, Terminals, Options and ServicesAQCB Auto Quote and Contract BillingAR Automatic RoutingARS 1) Audio Response System 2) Automatic Route SelectionARSB Automatic Repair Service BureauARU Audio Response UnitASCS Alarm Scanning and Control System (Scan-Alert)ASN.1 Abstract Syntax Notation OneASOG Access Services Ordering Guide2-2
  10. 10. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsASR Access Service RequestAT 1) Access Tandem 2) Advanced TechnologiesAT&T American Telephone and TelegraphATB All Trunks BusyATI QWEST Advanced Technologies DivisionATM Asynchronous Transfer ModeATMS Automatic Transmission Measurement SystemsATR Alternate Traffic RoutingATT/C American Telephone and Telegraph/Communications AT&T CommunicationsATT/IS AT&T Information SystemsATTC Automatic Transmission Test and Control CircuitATTCOM AT&T CommunicationsAUI Attachment Unit InterfaceAUIC Attachment Unit Interface CableAUTODIN Automatic Digital NetworkAUTOVON Automatic Voice NetworkAVD Alternate Voice-DataAWC Alternate Wire CenterB8ZS Bipolar with 8 Zero SubstitutionBANCS Bell Administration Network Communications SystemBASE Base document; for example, ISO 8327BATS Bits Access Test SystemBc Committed Burst SizeBCC Business Control CenterBCD Binary Coded DecimalBCF Billion Conductor FeetBCP Bell Company PracticeBCR Bell Communications Research 2-3
  11. 11. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000BCSC 1) Bell Customer Service Centers 2) Business Customer Service CenterBCSC/MAC Business Customer Service Center/Major Account CenterBDAC Business Dispatch Administration CenterBDC Building Distribution CableBDFB Battery Distribution Fuse BoardBDTVS Broadcast Digital Transport Video ServiceBe Excess Burst SizeBECN Backward Explicit Congestion NotificationBellcore Bell Communications Research, Inc.BER 1) Basic Encoding Rules for ASN.1 2) Bit Errored Ratio 3) Bit Error RateBERT Below Ground Electronics Remote TerminalBES Burst Errored SecondBIS Business Information SystemsBISCUS/FACS Business Information System-Customer Services/Facilities Assignment and Control SystemBISDN Broadband ISDNBISYNC Binary Synchronous ProtocolBIT Binary DigitBL Bridge LifterBLV Busy Line VerificationBnZS Binary n-Zero SubstitutionBOC Bell Operating CompanyBOC/WIS Bell Operating Company/WATS Information SystemBOCS Bell Operating CompaniesBOS Bell Operating SystemBOSS Billing and Order Support SystemBPNRZ Bipolar Non-Return to ZeroBPRZ Bipolar Return to Zerobps Bits Per Second (Now bit/s)2-4
  12. 12. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsBPSS Bell Packet Switching ServiceBPV Bipolar ViolationBRA Basic Rate AccessBRI Basic Rate InterfaceBRS Business Radio SystemBSA Basic Serving ArrangementBSC Business Service CenterBSCL Bell System COMMON LANGUAGE®BSCTE Bell System Center for Technical EducationBSE Basic Service ElementBSP Bell System PracticeBTN Billing Telephone NumberBTS Bell Tri-Co ServicesBTV Buffer Threshold ValueBW BandwidthC, I&M Construction, Installation & MaintenanceC/N Carrier to NoiseC1 Use TIRKS®-C1C1/CDS Use TIRKS®-C1/CDSC1/DAC Use TIRKS®-C1/DACC1/DIST TIRKS®-Circuit Layout Distribution ModuleC1/INV Use TIRKS®-C1/INVC1/MDS Use TIRKS®-C1/MDSC1/PREP TIRKS®-Circuit Layout Preparation ModuleC1/REF Use TIRKS®-C1/REFC1/TAS Use TIRKS®-C1/TASCAA Circuit Administration Area 2-5
  13. 13. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000CABS 1) Carrier Access Billing System 2) Customer Access Billing SystemCAC 1) Circuit Administration Center 2) Circuit Access Code 3) Contract Administration CenterCAD 1) Computer Aided Design 2) Computer Assisted Design 3) Computer Aided Drafting 4) Connect Aerial DropCAE Computer Aided EngineeringCAE/IFS Computer Aided Engineering/Interoffice Facility SystemCAE/MEMS Computer Aided Engineering/Mechanized Engineering Management SystemCAE/MTPS Computer Aided Engineering/Messenger Trunk Planning SystemCAE/RICS Computer Aided Engineering/Reuse Inventory Control SystemCAE/SPOS Computer Aided Engineering/Switched Plan and Order SystemCAL COMMAND A LINKCAMA Centralized Automatic Message AccountingCAMIS Construction Activities Management Information SystemCAMIS J/S CAMIS Job SchedulerCAPS Cable Analysis and Provisioning SystemCAROT Centralized Automatic Reporting On TrunksCAROT2 Centralized Automatic Reporting On Trunks-2CATLAS Centralized Automatic Trouble Locating and Analysis SystemCAU Customer Access UnitCB Channel BankCBAC Construction Budget Administration CenterCBD Connected Buried DropCBDB Construction Budget Data BaseCBS&A Construction Budget Summary & AnalysisCC Came ClearCCA Customer Credit Allowance2-6
  14. 14. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsCCC Clear Channel CapabilityCCI Corporate Communications, Inc. QWEST Corporate Communications, Inc.CCIS Common Channel Interoffice SignalingCCIS/SO Common Channel Interoffice Signaling/Signaling OfficeCCITT Consultative Committee on International Telephone and Telegraph (Now International Telecommunications Union [ITU])CCN Corporate Communications NetworkCCNA Customers Carrier Name AbbreviatedCCO Circuit Control OfficeCCON Customer ContactCCR Customer Controlled ReconfigurabilityCCS Common Channel SignalingCCS7 Common Channeling Signaling (System) 7CCSAC Common Channel Signaling Access ServiceCCSS Common Channel Signaling SystemCCTV Closed Circuit TelevisionCCUAP Computerized Cable Upkeep Administration ProgramCCUAP II Computerized Cable Upkeep and Administration Program IICD 1) Call Distribution 2) Circuit Details 3) Circuit DataCDAC Centralized Dispatch Administration CenterCDC Corporate Data CommunicationsCDLR 1) Confirming Design Layout Record 2) Confirming Design Layout ReportCDLRD Confirming Design Layout Record DateCDM Cost Distribution ModuleCDO Community Dial OfficeCDR Customer Digit ReceiverCDS Circuit Design SystemCDVM Central office Data/Voice Multiplexer 2-7
  15. 15. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000CEC Cellular Exchange CarrierCECO Civil Enforcement Consent OrderCEI Comparably Efficient InterconnectionCEM 1) Construction Equipment Management 2) Construction Engineering MemorandumCENTREX Centralized Exchange for Business Customer ServicesCENTREX/CENTRON Centralized Exchange for Business Customer ServicesCEO/EAEO Conforming End Office/Equal Access End OfficeCEV Controlled Environmental VaultCFA 1) Connecting Facility Assignment 2) Carrier Facility AssignCI Channel InterfaceCI II Computer Inquiry II (Two)CI III Computer Inquiry III (Three)CIB Centralized Intercept BureauCIC Carrier Identification CodeCIMAP Circuit Installation Maintenance Assistance PackageCIMAP-INE CIMAP - Intelligent Network ElementsCIMAP/CC CIMAP/Control CenterCIMAP/SSC CIMAP/Special Services CenterCIN Customer Identification NumberCIR Committed Information RateCIS Customized Intercept ServiceCIU Craft Interface UnitCKL Circuit LocationCKLT Circuit Location Telephone Company Wire CenterCKTID Circuit IdentificationCLASS SM Custom Local Area Signaling ServiceCLB Circuit Layout BureauCLCI™ Common Language® Circuit IdentificationCLEI™ Common Language® Equipment Identification2-8
  16. 16. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsCLEO™ Common Language® Equipment OrderCLF Creation Load FactorCLFI™ Common Language® Facility IdentificationCLI Calling Line IdentificationCLLI™ Common Language® Location IdentificationCLO Circuit Layout OrderCLONES COMMON LANGUAGE® Online Extract SystemCLR Called Line ReportCLRC Circuit Layout Record CardCLS 1) A COMMON LANGUAGE® Circuit Identifier 2) COMMON LANGUAGE® Circuit Serial NumberCMC 1) Cellular Mobile Carrier 2) Construction Management Center 3) Change Management and ControlCMI Control Mode IdleCMIP Common Management Information ProtocolCMISE Common Management Information Service ElementCMO 1) Cable Management Organization 2) Cable Management OfficeCMRF Circuit Maintenance Record FileCMS Circuit Maintenance System (Also see CMT)CMS 1 Circuit Maintenance System 1CMS 3A Circuit Maintenance System 3ACMS-1 Circuit Maintenance System-1CMS 3A Circuit Maintenance System 3ACMSMC Circuit Maintenance System Maintenance CenterCMT Circuit Maintenance System (Also see CMS)CMTS Centralized Maintenance Test SystemCN 1) Circuit Number 2) Change Notice 3) Completion NoticeCNA Communications Network ArchitectureCND Calling Number Delivery 2-9
  17. 17. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000CNDB Calling Number Delivery BlockingCNM Customer Network ManagementCO Central OfficeCOAM Customer Owned And MaintainedCOC 1) Circuit Order Control 2) Circuit Order Center 3) Central Office ConnectionCOCC 1) Central Office Connecting Channel 2) Central Office Cross ConnectCOCE Central Office Circuit EquipmentCOCS Circuit Order Control SystemCOCTX Central Office CenTreXCOE 1) Central Office Equipment 2) Customer Owned EquipmentCORD Customer Order Retrieval and DisplayCOSMOS Computer System for Mainframe OperationCOT 1) Central Office Termination 2) Central Office TechnicianCP Communications ProcessorCPC 1) Circuit Provisioning Center 2) Cable Pressure ContactorsCPE Customer Provided EquipmentCPIW Customer Provided Inside WireCPN Calling Party NumberCPR Continuing Property RecordCPS Cycles Per SecondCRAS Cable Repair Administrative SystemCRC Cyclic Redundancy CheckCRC-6 6 bit Cyclic Redundancy CheckCREG Concentrated Range Extender with GainCRIS 1) Customer Records Inventory System 2) Customer Record Information SystemCRO Critically Related Order2-10
  18. 18. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsCRSAB 1) Centralized Repair Service Attendant Bureau 2) Centralized Repair Service Answering BureauCS Class of ServiceCSC Complex Services CenterCSDC Circuit Switched Digital CapacityCSDN Corporate Shared Data NetworkCSG Controlling Service GroupCSMA/CD Carrier Sense Multiple Access with Collision DetectionCSO Carrier Service OrderCSP Customer Systems PricingCSP Carrier Selection ParameterCSS Controlled Slip SecondsCST 3 Circuit Switched Trunk 3CSU 1) Channel Service Unit 2) Customer Service UnitCSW Customer Service WireCT Channel TerminationCTEC Circuit Transmission Engineering CenterCTNN Cable Trouble Ticket NumberCTS Clear To SendCTX CentrexCU Channel UnitCUS Customer CodeCV 1) Code Violation 2) Coding ViolationsCVTS Corporate Video Teleconferencing ServiceCWG Construction Work GroupCWL Circuit Work LocationCXR CarrierDA Directory AssistanceDACS Digital Access Cross-connect System (AT&T) 2-11
  19. 19. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000DATH Display, Abbreviate Trouble HistorydB decibelDBM Dynamic Bandwidth ManagementdBrnC Decibel Reference Noise C-Message WeightingdBrnC0 dBrnC referred to 0 TLPdBv Decibels Relative to voltagedc direct currentDCC Data Communications ChannelDCE Data Circuit-Terminating EquipmentDCPR Detailed Continuing Property RecordDCS Digital Cross-connect SystemDCSO Display Completed Service OrderDCTTN Display Cable Trouble Ticket NumberDD Due DateDDAL Direct Digital Access LineDDD Direct Distance DialingDDJ Due Date JeopardyDDN Digital Data NetworkDDOV Digital Data Over VoiceDDS 1) Direct Dialing Service 2) Digital Data Service 3) Dataphone Digital ServiceDE Discard EligibilityDID Direct Inward DialingDILEP Digital Line Engineering ProgramDLC Digital Loop CarrierDLCI Data Link Connection IdentifierDLCS Data Line Concentrator SystemDLETH Display Long Extended Trouble HistoryDLR 1) Design Layout Record 2) Display Line RecordDLRD Design Layout Record Date2-12
  20. 20. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsDM Delayed MaintenanceDOD Direct Outward DialingDOJ Department of Justice (U S Federal Government)DOP Dedicated Outside PlantDOPAC Disk Oriented Property and Cost Accounting systemDQDB Distributed Queue Dual BusDRI Design Related InformationDS0 Digital Signal Level 0 (64 kbit/s) (1 voice channel)DS1 High Capacity 1.544 Mbit/s Service Digital Signal Level 1 (1.544 Mbit/s)DS2 Digital Signal Level 2 (6.312 Mbit/s)DS3 High Capacity 44.736 Mbit/s Service Digital Signal Level 3 (44.736 Mbit/s)DS4 Digital Signal Level 4 (274.176 Mbit/s)DSAS DATAPHONE® Select-A-StationDSOC 1) Digital Systems Operations Center 2) Digital Services Operations CenterDSR DCE ReadyDSS Digital Switched ServicesSMDSU 1) Digital Service Unit 2) Data Service UnitDSX Digital Signal Cross-connectDSX-1 Digital Signal Level 1 Cross-connectDSX-3 Digital Signal Level 3 Cross-connectDTAU+ Heikemian Digital Test Access Unit +DTE Data Terminal EquipmentDTMF Dual Tone MultiFrequencyDTN Data Telephone NumberDTR DTE ReadyDUV Data Under VoiceDVA Designed, Verified and AssignedDVJ Designed, Verified and Assigned Jeopardy 2-13
  21. 21. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000DX Duplex SignalingE-911 Enhanced 911 ServicesE/M ElectromechanicalE1 Use TIRKS®-E1E1/REF Use TIRKS®-E1/REFE1/TAS Use TIRKS®-E1/TASEA Equal AccessEADP Equal Access Deployment PlanEAS Extended Area ServiceEC Exchange CarrierEC CO Exchange Carrier Central OfficeECD Estimated Completion DateECO Electronic Central OfficeECP-1 Use TIRKS®-ECP-1ECP-1A Use TIRKS®-ECP-1AECP-1B Use TIRKS®-ECP-1BECRS Enhanced Call Receipt SystemEDIMS Electronic Documentation Information Management SystemEDS Extended Digital ServiceEDSX Electronic Digital Signal Cross-connectEEC-FAC Equipment Engineering Center-FacilitiesEFAR Economic Feeder Administration and ReliefEFRAP Exchange Feeder Route Analysis ProgramEFRAP/CFT Exchange Feeder Route Analysis Prog/Cumulative Fill TabEFRAP/TICS Exchange Feeder Route Anal Prog/Time-Share Cable SizeEFRAP/TIFS Exchange Feeder Route Anal Prog/TICS Input File SystemEFS Error Free SecondsEIA Electronic Industries AssociationEICT Expanded Interconnect Channel TerminationELAC Equipment Location Access CodeELEPL Equal Level Echo Path Loss2-14
  22. 22. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsEM Electronic MailEO End OfficeEPIC (EEPS) Engineering and Planning Interface Construction (Budget)EPL Echo Path LossEPOC Engineering Point of ContactEPRC Engineering Property Records and ContractingEPROM Erasable, Programmable, Read-Only Memory (Chip)EPS Engineering and Planning SystemERL Echo Return LossERMA Engineering Records Maintenance and Administration SystemERW Engineering Right-of-WayES Errored Second(s)ESF Extended SuperframeESP Enhanced Service ProviderESPD Equalizer Selection Program for DataESSEX ESS Centrex ServiceESSX Electronic Switching System ExchangeESS® Electronic Switching SystemETN Electronic Tandem NetworkETV Educational TelevisionEU End-UserEU-POT End-User Point Of TerminationEWO Engineering Work OrderEXACT™ Exchange Access Control and Tracking SystemF1 Use TIRKS® - F1FAB 1) Facility Assignment Bureau 2) Field Assistance BureauFACS Facility Assignment and Control SystemFACTS Force And Cost Tracking SystemFAD Functional Accounting Distribution 2-15
  23. 23. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000FADS Force Administration Data System (SSFS) Forecasters Analysis and Decision SupportFAP Facility Analysis PlanFAX 1) Facilities 2) FacsimileFC Function CodeFCC Federal Communications CommissionFCC Federal Communications CommissionFCD Frame Continuity DateFCO Foreign Central OfficeFCS Frame Check SequenceFDDI Fiber Distributed Data InterfaceFDM Frequency Division MultiplexingFDP Fiber Distribution PanelFDX Full DuplexFE Front EndFECN Forward Explicity Congestion NotificationFEDC Facilities Engineering Design CenterFEP Facility Equipment PlanningFEPS Facility and Equipment Planning System Use TIRKS®-FEPSFEPS/PWS TIRKS®-FEPS/Planning Work StationFEX Foreign ExchangeFG Feature Group (A, B, C, D)FG A Feature Group AFG B Feature Group BFG C Feature Group CFG D Feature Group DFGTS Federal Government Telecommunications ServicesFID Field IdentifierFLEXCOM™ Flexible Network Control (Formerly FLEX-NET)2-16
  24. 24. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsFM Frequency ModulationFMAC Facility Management and Administration CenterFMS-F Force Management System-FacilitiesFNPA Foreign Numbering Plan AreaFOC Firm Order ConfirmationFOT Fiber Optic TerminalFR Facility RequestFRC Field Reporting CodeFRS Frame Relay ServiceFSI Facility System InterfaceFTAC Fiber Technical Assistance CenterFTS Federal Telecommunication SystemFTTC/H Fiber To The Curb/HomeFV Flexible VideoFWG Facility Work GroupFX Foreign ExchangeGAB Group Access BridgingGAC Group Access CodeGCR Generic Circuit RecordGDMO Guidelines for the Description of Managed ObjectsGES Government and Education ServicesGHz GigahertzGNM Generic Network ModelGOC Generic Order Control (Use TIRKS®-GOC)GPS Global Positioning SystemGS Ground StartGSA General Services AdministrationGTT Global Title TranslationsHCCD Hub Cross-Connect DeviceHCDS High Capacity Digital Service 2-17
  25. 25. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000HCOM Host Communication Facility for FLEXCOMHCTDS High Capacity Terrestrial Digital ServiceHDLC High Data Link ControlHECIG Human Equipment Catalog Item Group CodeHECI™ Human Equipment Catalog Item CodeHERTZ Cycles per SecondHICAP High Capacity Signal (or HI-CAP)HSSDS High Speed Switched Digital ServiceHz 1 Hertz (formerly 1 cycle per second)I&M Installation and MaintenanceIABS Integrated Access Billing SystemIAD Inventory Availability DateIAL Immediate Action LimitIAM Initial Address MessageIBP Integrated Business PlanIC 1) Integrated Circuit 2) Interexchange Carrier (or IEC) 3) Interexchange Common CarrierIC POP Interexchange Carrier Point of PresenceIC POT Interexchange Carrier Point of TerminationIC/IEC Interexchange CarrierICB Individual Case BasisICL Inserted Connection LossICO Independent Company OfficeICOCS Use TIRKS®-ICOCSICSC 1) Interexchange Carrier Service Center 2) Interexchange Customer Service CenterID IdentificationIDC Information Distribution CompanyIDDD International Direct Distance DialingIDLC Integrated Digital Loop Carrier2-18
  26. 26. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsIEC 1) Interexchange Carrier (or IC) 2) Interexchange Common CarrierIEEE Institute for Electrical and Electronic EngineersIFCPC 1) Interoffice Facilities/Equipment Current Planning Center 2) Interoffice Facilities Circuit Provisioning CenterIFEC Interoffice Facilities Engineering CenterIFPC Interoffice Facilities/Equipment Planning CenterIGRP Interior Gateway Routing ProtocolIM Investment ManagementIMO 1) Investment Management Operations (PICS) 2) Investment Management OrganizationIMTS Improved Mobile Telephone ServiceINC Integrated Network CorporationINE Intelligent Network Element or EquipmentInterLATA interLocal Access and Transport AreaIntraLATA intraLocal Access and Transport AreaINWATS Inward Wide Area Telephone ServiceIOC Inter-Office ChannelIP Internet ProtocolIPX Internetwork Packet ExchangeISDN Integrated Services Digital NetworkISDNUP Integrated Services Digital Network User PartISI Industry Support InterfaceISO International Standards OrganizationISSN Integrated Special Services NetworkISUP 1) Integrated Services (Digital Network) User Port 2) Integrated Services Digital User PortITS Integrated Test SystemITU International Telecommunications Union (formerly CCITT)ITU-T ITU-Telecommunications sectorIX Interexchange 2-19
  27. 27. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000kbit/s kilobits per second (1,000 bit/s)KCJO Keep Cost Job OrderkHz Kilohertz (1,000 Cycles Per Second)L2_PDU Level 2_Protocol Data UnitL3_PDU Level 3_Protocol Data UnitLAC Loop Assignment CenterLAM Loop Assignment and MakeupLAN Local Area NetworkLAP Link Access ProcedureLAPB Link Access Procedure-BalancedLAPD Link Access Procedure DLASER Light Amplification by Stimulated Emission of RadiationLATA Local Access and Transport AreaLATAWATS Local Access and Transport Area WATS ProvideLBO Line Build OutLBS Large Business ServicesLC Local ChannelLCAMOS (TRACKER) Loop Cable Administration & Maintenance Operations SystemLCAMOS (PRED) Loop Cable Administration and Maintenance Operations Systems/PredictorLCAP Loop Carrier Analysis ProgramLCIE Lightguide Cable Interconnect EquipmentLCON Location ContactLDC Local Distribution ChannelLDMC Loop Data Maintenance CenterLDSX Loop Digital System Cross ConnectLDV Local Distribution VendorLEAD Loop Engineering AssignmentLEC 1) Local Exchange Carrier 2) Loop Electronics Coordinator2-20
  28. 28. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsLED Light Emitting DiodeLEIM Loop Electronics Inventory ModuleLEIP Loop Electronics Inventory ProgramLEIS™ Loop Engineering Information SystemLEN Line Equipment NumberLEWIS Loop Electronic Warehouse and Installation ServiceLFACS 1) Loop Facilities Assignment and Control System 2) Loop Facility Administration Control SystemLIDB Line Information Data BaseLIN Loop Inter ShelfLL Local LoopbackLMCS Land Mobile Communications SatelliteLMI Local Management InterfaceLMOS Loop Maintenance Operation SystemLMOS/MLT Loop Maintenance Operations System/Mechanized Loop TestingLMS Local Measured ServiceLOC LocationLONAL Local Off Network Access LineLPC Loop Provisioning CenterLRAP Long Route Analysis ProgramLS Loop StartLSO Local Serving OfficeM23 M23 multiplexer applicationM&P Methods and ProceduresMa Milliamperes (one thousandth of an ampere)MAC Major Account CenterMAN Metropolitan Area NetworkMARC Material Accountability Requisition ControlMAU Medium Attachment Unit 2-21
  29. 29. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000Mbit/s Megabit per SecondMBL Mini-Bridge LifterMC Maintenance CenterMCI Microwave Communications Inc.MCO Maintenance Control OfficeMCP (TIRKS®) Mechanized Circuit ProvisioningMCTAP Mechanized Cable Trouble Analysis PlanMD Manufacture DiscontinuedMDF 1) Main Distributing Frame 2) Main Distribution FrameMDI Medium Dependent InterfaceMDS Message Design SystemMEC Maintenance Engineering CenterMF MultifrequencyMFJ Modification of Final JudgmentMFS Metropolitan Fiber Systems, Inc.MFT Metallic Facility TerminalMIC Machine Interface CodeMJU Multipoint Junction UnitMLAC Mechanized Loop Assignment CenterMLT Mechanized Loop TestingMMA Mechanized Mapper AssignerMODEM Modulator/DEModulatorMPGP Mechanized Pair Gain PlanningMPOP 1) Minimum Point Of Presence 2) Main Point of PresenceMR Maintenance RequestMRSELS Microwave Radio & Satellite Engineering LicenseMSAU MultiStation Access UnitMSC Maintenance of Service ChargeMSCR Mechanized Screen2-22
  30. 30. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsMSG Media Service GroupMTAS Mechanized Trouble Analysis SystemMTBF Mean Time Between FailureMTF Metallic Terminal FrameMTO Message Trunk OrderMTP Message Transfer PartMTR Material Transfer ReportMTSO Mobile Telephone Switching OfficeMTTR Mean Time To RepairMTU Maintenance Terminating UnitMU Market UnitMUX MultiplexerNA No AccessNAC Network Administration CenterNANP North American Numbering PlanNB NarrowbandNBD Normal Business DayNBEC Non-Bell Exchange CarrierNC Network ChannelNCEO Non-Conforming End OfficeNCI Network Channel InterfaceNCTE Network Channel Terminating EquipmentNE Network ElementNEAT Network Evolution Analysis TeamNECA National Exchange Carrier AssociationNED Network Electronic DocumentationNEXT Near-End CrosstalkNF Network FacilitiesNI Network InterfaceNM Network Management 2-23
  31. 31. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000NMA Network Monitoring and AnalysisNMS Network Management SystemNNI Network-to-Network InterfaceNOC Network Operations CenterNOCC National Operations Control CenterNOF Network Operations ForumNPA Numbering Plan AreaNPC Network Produced CausesNPIAC Network Plug-In Administration CenterNRC 1) Network Report Center 2) National Release CenterNSEP National Security/Emergency PreparednessNSM Network Service ManagerNST Nonscheduled TestingNTAC National Technical Assistance CenterNTE Network Transport ElementNTEC Network Terminal Equipment CenterNTF No Trouble FoundNUI Network Unit InventoryNXX Numeric Numbering PlanOAM&P Operations, Administration, Maintenance and ProvisioningOC Optical CarrierOCO/CCO Overall Control Office/Circuit Control OfficeOCS 1) Official Company Services 2) Operations Communications SystemOCU Office Channel UnitODAP Order Design Assign and ProvisionOEC Other Exchange CarrierOLTE Optical Light Terminating EquipmentOLTM Optical Light Terminating MultiplexerOLTS Optical Loss Test Set2-24
  32. 32. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsONA Open Network ArchitectureONAL Off Network Access LineONI Operator Number IdentificationOPS Operations Processing SystemOPS/INE Operations Processing System/Intelligent Network ElementOR Office RepeaterOSI Open System InterconnectionOSP/CPR Outside Plant/Continuing Property RecordOSPDBS Outside Plant Demand and Facility Data Base SystemOSPE Outside Plant EngineerOSS Operations Support SystemOSSGR Operator Services Systems Generic RequirementsOTC Operating Telephone CompanyOTDR Optical Time Domain ReflectometerP&E Planning and EngineeringPAD Packet Assembler/DisassemblerPAM Pulse Amplitude ModulationPBX Private Branch ExchangePC Phone CallPCL Product Classification ListingPCM Pulse Code ModulationPDD Post Dial DelayPDN Packet Data NetworkPDU Protocol Data UnitPEDITE Use TIRKS®-PEDITEPF Program FunctionPG Pair GainPIA Pair Gain AdministratorPIC Primary Interexchange CarrierPICS Plug-In Inventory Control System 2-25
  33. 33. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000PID Product IdentificationPIR 1) Plug-In Request 2) Plug-In Requirement 3) Plug-In RequisitionPL Private LinePLAR Private Line Automatic RingdownPLAT Private Line Access TariffPLCP Physical Layer Convergence ProcedurePLDS Private Line Digital ServicesPLNSC Private Line Network Service CenterPLS Private Line ServicePLTS Private Line Transport Service (Special Access)PM Phase ModulationPM-TA Performance Monitoring and Test AccessPMOC Project Management Operations CenterPOI Point Of InterfacePOP Point Of PresencePOS Point Of SalePOT Point Of TerminationPOTS Plain Old Telephone ServicePPSN Public Packet Switched NetworkPREMIS Premises Information System Premis Information/Loop Assignment CenterPRI Primary Rate InterfacePRM Performance Report MessagePROCDS Programmable Circuit Design System (TIRKS®)PROMDS Programmable Message Design System (TIRKS®)PRS Primary Reference SignalPSC Protection Switching CountPSD Protection Switching DurationPSDS Public Switched Digital ServicesPSI Packet Switching Interface2-26
  34. 34. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsPSN Public Switched NetworkPSTN Public Switched Telephone NetworkPTD Plant Test DatePVC Permanent Virtual ConnectionPVN Private Virtual NetworkPWS Planning Work StationQRSS Quasi Random Signal SourceRAND Rural Area Network DesignRASIR RAdio Systems Information ResourceRBOC Regional Bell Operating CompanyRCC 1) Radio Common Carrier 2) Regional Control CenterRCF Remote Call ForwardingRCMAC Recent Change Memory Administration CenterRDN Relative Distinguished NamesRDT Radio Digital TerminalRDVM Remote Data/Voice MultiplexerREC Radio Engineering CenterREG Range Extension with GainREGIS Requisition Entry and Generalized Inventory SystemRF Radio FrequencyRFC Request For CommentsRFS Request for ServiceRID Record Issue DateRIP Routing Information ProtocolRMA Request for Manual AssistanceRMN Return Material NoticeRMS Root-Mean-SquareRMS–D AT&T Remote Measurement System DigitalRMS–M AT&T Remote Measurement System MetallicROSE Remote Operations Service Element 2-27
  35. 35. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000RNMC Regional Network Management CenterRP Restoration PriorityRPC Remote Procedure CallRPL Restructure Private LineRPMS 1) Radio Performance Monitoring System 2) Radio Protection Monitoring SystemRR Relay RackRRO Responsible Reporting OfficeRSA Repair Service AttendantRSC 1) Remote Switching Center 2) Residence Service CenterRSS Remote Switching SystemRSU Remote Switch UnitRT Remote TerminalRTA Remote Trunk ArrangementRTS Request To SendS&E Service and EquipmentS/N Signal to NoiseSAL Service Acceptance LimitSAP Service Access PointSARTS Switched Access Remote Testing SystemSARTS/RTS Switched Access Remote Testing System/Remote Test SystemSAS Switched Access ServiceSBS Satellite Business SystemsSC Secondary ChannelSCA Secondary Request-To-Send (Received Channel)SCB Secondary Clear-To-Send (Transmitted Channel)SCC Switching Control CenterSCCP Signaling Connection Control PartSCP Service Control PointSCS Scheduling and Coordination Systems2-28
  36. 36. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsSDC System Design CenterSDH Synchronous Digital HierarchySDDS Switched Digital Data SystemSDLC Synchronous Data Link ControlSEFS Severely Errored Frame SecondsSES Severely Errored SecondSF 1) Single Frequency (Signaling) 2) SuperframeSHARP Self-Healing Alternate Route ProtectionSHNS Self-Healing Network ServicesSHS Self-Healing ServicesSID Scheduled Issue DateSIE Short Interruption EventSIEC Short Interruption Event CountSLC Subscriber Loop CarrierSLM Subscriber Loop MultiplexerSMAS Switched Maintenance Access SystemSMASE System Management Application Service ElementsSMDS Switched Multi-megabit Data ServiceSME Subject Matter ExpertSMETDS Standard Message Trunk Design SystemSMI Structure of Management InformationSMS Service Management SystemsSN56 SwitchNet 56SNA System Network ArchitectureSNI Subscriber Network InterfaceSNMP Simple Network Management ProtocolSOAC Service Order Analysis and ControlSOEC Service Order Entry CenterSOEC-SS Service Order Entry Center-Special ServicesSOEC/SS Service Order Entry/Special Services 2-29
  37. 37. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000SOG Service Ordering GuideSOLAR Service Order Logistics and Reference SystemSONET Synchronous Optical NetworkSOP Service Order ProcessingSOPAD Service Order Processing and DistributionSPOC Single Point of ContactSR Service RequestSRDM Subrate Data MultiplexingSRL Singing Return LossSRM Selective Ringing ModuleSRMX Subrate MultiplexerSS Special ServicesSS7 Signaling System 7SSC Special Service CenterSSDAC Special Service Dispatch Administration CenterSSF Special Services ForecastSSN Switched Service NetworkSSO Special Service OrderSSP Service Switching PointsSSSD Segmented Special Services DesignSTARS Satellite Terrestrial Automated Radio SystemSTM Synchronous Transfer ModeSTN StationSTP Signal Transfer PointsSUN Simplified Uniform NetworkSVB Serving BureauSVC Switched Virtual CircuitSVDS Simultaneous Voice Data ServiceSWC Serving Wire CenterSWD Single WordSYNTRAN Synchronous Transmission2-30
  38. 38. QWEST Tech Pub 77001 Chapter 2Issue B, November 2000 AcronymsTAG Technical Advisory GroupTc Measurement IntervalTC Transport ChannelTCAP Transaction Capabilities Application PartTCC Trunk Control CenterTCIC Trunk Circuit Identification CodeTCM Time Compression MultiplexingTCP Terminal Control ProtocolTCP/IP Transmission Control Procedures/Internet ProtocolTCU Trunk Coupling UnitTDM Time Division MultiplexingTD-n e.g., TD-2. Long Distance Microwave Relay Transmission SystemTEC Transmission Engineering CenterTEM Transmission Engineering ModuleTEO Telephone Equipment OrderTES Terminal End-SectionTEWS Telecommunications Engineering Work-Bench System (TIRKS®)TFP Transfer ProhibitedTGAC Trunk Group Access CodeTGN Trunk Group NumberTGSN Trunk Group Serial NumberTIA Telecommunications Industry AssociationTIC Tandem Inter-LATA ConnectionTIRKS® Trunks Integrated Record Keeping SystemTL 1) Transmission Level 2) Tie LineTLP Transmission Level PointTLS Transparent LAN ServiceTMN Telecommunications Management NetworkTMNA Telecommunications Management Network ApplicationsTOC Table of Contents 2-31
  39. 39. Chapter 2 QWEST Tech Pub 77001Acronyms Issue B, November 2000TOK Test OKTOPS Traffic Operator Positions SystemTRK TrunkTSEC Transmission Staff Engineering CenterTSI Time Slot InterchangeTT Translation TypeUAS Unavailable SecondUDP User Datagram ProtocolUG Under GroundUNI User-Network InterfaceUPDCALC Update Calculations in CIMAPUSDC Universal Switched Digital CapabilityUSO Universal Service OrderUSOC Universal Service Order CodeVF Voice FrequencyVLSI Very Large Scale IntegrationVPN Virtual Private NetworksWA Work AuthorizationWAL WATS Access LineWAN Wide Area NetworkWATS Wide Area Telecommunications ServiceWORD Work Order Record and DetailsWOT Wire and Office TestedZBTSI Zero Byte Time Slot InterchangeZIP Zero Interval Provisioning2-32
  40. 40. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 Glossary CONTENTSChapter and Section Page3. Glossary ............................................................................................................................3-1 TOC 3-i
  41. 41. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 Glossary3. GlossaryAbstract Syntax Notation One (ASN.1)The OSI language for describing abstract syntax.Acceptance (Cooperative) TestsThose tests performed by QWEST in cooperation with the customer at a pre-negotiated time toestablish new or additional services.Acceptance Limit (AL)The maximum deviation from a design parameter that is allowed at service turnup or customeracceptance.Access CodeSee carrier access code.Access Distributed Queue Dual Bus (DQDB)The process of operating of the DQDB protocol across the SNI.Access Tandem (AT)A QWEST switching system that provides a concentration and distribution function for originatingor terminating traffic between the QWEST end-offices and an access customers premises.AcronymA word formed from the first (or first few) letters of a series of words.Actual Measured Loss (AML)The actual measured insertion loss of a circuit at a given frequency (see Insertion Loss).Address SignalsSignals used to convey call destination information, such as telephone station code, central officecode, and area code. Some forms of address signals are called pulses, e.g., Dial Pulses (DP) andMultifrequency (MF) pulses.Alarm Indication Signal (AIS)A signal transmitted in lieu of the normal signal to maintain transmission continuity, and to indicateto the receiving terminal that there is a transmission fault which is located at, or upstream of, thetransmitting terminal. 3-1
  42. 42. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000Alternate Billing Service (ABS)ABS is the validation of calling card, collect, and third number billing services.Alternate Mark Inversion (AMI)A one (mark) pulse which is the opposite polarity as its predecessor.American National Standard Institute (ANSI)An organization supported by the telecommunications industry to establish performance andinterface standards.Amplitude Response Versus FrequencyThe amplitude response of a channel over the bandwidth provided. It is often called frequencyresponse, and commonly is referred to as a single frequency within the pass band.Amplitude StabilityThe amount of change in (pilot) signal levels with time. For pilot signals, a short-term variationoccurs in 5 minutes or less; a long-term variation occurs in a period in excess of 5 minutes.Typical examples are radio fading (short-term) or change in cable attenuation with temperature(long-term).Answer SupervisionAn off-hook signal transmitted towards the calling end of a connection when the called partyanswers.AppletalkA suite of communication protocols introduced and maintained by Apple Computer.ASCIIAmerican Standard Code for Information Interchange. A standard 8-bit information code usedwith most computers and data terminals.Asynchronous Transfer Mode (ATM)An information transfer method in which the information is organized into fixed length (53 octet)cells.Asynchronous TransmissionNot synchronous: Data transmission in which the time of occurrence of specified significant instantof a data bit (usually the leading edge) is arbitrary, and occurs without necessarily having a fixedtime relationship to preceding comparable instants.3-2
  43. 43. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossaryAttachment Unit Interface Cable (AUI)The cable, connectors, and transmission circuitry used to interconnect the Physical Signaling (PLS)and Medium Attachment Unit (MAU).Attachment Unit Interface Cable (AIC)The cable/connector assembly which attaches the Medium Attachment Unit (MAU) to the DigitalTerminating Equipment (DTE) as shown in IEEE Std. 802.3-1985 Fig. 7-20.Attenuation DistortionThe change in attenuation with frequency relative to the attenuation at a reference frequency; thereference frequency is 1004 Hz unless otherwise specified.Audio TransmissionDenotes the transmission of speech or music within the audible spectrum.Automatic Gain Control (AGC)The process by which gain is automatically adjusted in a specified manner as a function of input orother specified parameters.Automatic Number Identification (ANI)The process of identifying the number of the calling station during a call sequence. Depending onthe application, these digits may represent a directory number or billing number.Automatic Protection Switch (APS)A device which monitors a channel and automatically switches the channel to another facilitywhenever the channel fails or when specified parameters go beyond a specified threshold.AvailabilityThe relative amount of time that a service is "usable" by a customer, represented as a percentageover a consecutive 12 month period.Balance (Longitudinal Balance)See Longitudinal BalanceBalance (100 -Type) Test LineEquipment in a Central Office that provides a reference impedance termination on a line forbalance and noise tests on the line. 3-3
  44. 44. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000BandwidthThe range of frequencies that contain most of the energy or power of a signal; also, the range offrequencies over which a circuit or system is designed to operate.Basic Encoding Rules (BER)The OSI language for describing transfer syntax.BAUDA unit of signaling speed. It is the reciprocal of the time duration in seconds of the shortest signalelement (binary 1 or 0) within a code signal. The rates specified are the number of signal elementsper second.Bc - Committed Burst Size (bits)The maximum amount of subscriber data that the network agrees to transfer, under normalconditions, during a time interval Tc.Be - Excess Burst Size (bits)The maximum amount of uncommitted data in excess of Bc that the network will attempt to transferduring a time interval Tc.Binary n- Zero Substitution (BnZS)Binary n- Zero Substitution is an application of BPRZ, and is an exception to the Alternate MarkInversion (AMI) line-code rule. It is one method for providing bit independence for digitaltransmission, by providing a minimum 1s density of 1 in n-bits. For DS3, n=3; for DS1, n=8; for56 kbit/s service, n=7, and for subrates, n=6. The rule of BnZS is:• Successional binary 1s (Marks) will be of opposite polarity (AMI) unless they are separated by n consecutive binary zeros, in which case the n 0s will be replaced by an n-bit byte containing 1s, having or causing, an intentional bipolar violation (bpv).• For example in B6ZS, if the preceding binary 1 was +, then binary 100000011 is transmitted as signal voltage values: -000+0+-+ (the B6ZS byte is underlined). Assume the leftmost bit is transmitted first.• In the decoding process, the BnZS signature is recognized and replaced by an all zero n-bit byte.Bipolar Violation (BPV)An unexpected violation (not a predetermined signature) of the Bipolar Alternate Mark Inversion(AMI) line-code rule. A violation is declared for AMI if two successive pulses have the samepolarity if the bipolar violation is not part of an intentional byte used for special control, e.g.BnZS.3-4
  45. 45. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossaryBipolar With 8 Zero Substitution (B8ZS)Bipolar 8 Zero Substitution is an application of BPRZ and is an exception to the Alternate MarkInversion (AMI) line-code rule. It is one method for providing bit independence for digitaltransmission by providing a minimum 1s density of 1 in 8 bits.Bit (Binary Digit)A binary unit of information. It is represented by one of two possible conditions, such as the value0 or 1, on or off, high potential or low potential, conducting or not conducting, magnetized ordemagnetized. A Bit is the smallest unit of information, by definition.Bits/second (bit/s)Bits per second, e.g., 1200 bps. In data transmission, it is the number of binary zero and one bitstransmitted in 1 second. Modern terminology uses "bit/s" e.g., 1200 bit/s.Bit Error Rate (BER)The ratio of the number of bit errors to the total number of bits transmitted in a given time interval.Bridging (Multipoint Service)Denotes the process of connecting three or more customer locations.Buffer Threshold Value (BTV)This value represents the buffer capacity allocated, at any given instant in time, for each congestedFrame Relay Port.ByteA consecutive number of bits usually constituting a complete character or symbol. If the length of thebyte is not specified, it is conventionally assumed to have a length of 8-bits. In the Digital DataSystem, a byte refers to an arbitrary group of 8 consecutive bits; it does not correspond to a byte ofcustomer data.C-MessageA frequency-weighting characteristic used for measuring noise in voice frequency communicationscircuits and designed to weight noise frequencies in proportion to their perceived effect intelephone service.C-Message NoiseDenotes frequency weighted average noise which takes into consideration the electrical/acousticalproperties of the 500-type telephone set and the human ear. 3-5
  46. 46. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000C-Notched NoiseDenotes the C-message frequency-weighted noise on a voice channel with a holding tone, which isremoved at the measuring end through a notch (very narrow band) filter.CallThe sequence of events begun when an end-user makes a request for service and provides anaddress code, and concluded when communication between the end-users has terminated.Call AttemptDenotes the act of an end-user or customer provided equipment (CPE) providing the completenumber (e.g. 0, 911, or 10 digits) using accepted network supervisory and address signalingprotocols to the serving dial-tone central office.Called NumberThe called number is the telephone number originally dialed by the calling party.Carrier (CXR)An organization whose function is to provide telecommunications services. Examples are: LocalExchange Carriers, Interexchange Carriers, Cellular Carriers, etc.Carrier Access Code (CAC)The sequence an end-user dials to obtain access to the switched services of a carrier.Carrier DetectAn E1A-232 interface control signal that indicates to an attached Data Terminal Equipment (DTE)device that the modem is receiving a signal from a remote modem.Carrier Sense Multiple Access with Collision Detection (CSMA/CD)Carrier Sense Multiple Access with Collision Detection is a method of controlling access to ashared transmission path, particularly in local area networks.Category ISpecial Access Services that are equivalent to the services that are defined in Part 68.2(a)(2) ofthe FCC Rules and Regulations.Category IISpecial Access Services not covered by Part 68 of the FCC Rules and Regulations. Theseservices include those access services where protection is incidentally supplied in the normalprovision of the service.3-6
  47. 47. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossaryCategory IIISpecial Access Services that are equivalent to the services that are defined in Part 68.2(a)(3) ofthe FCC Rules and Regulations.Consultative Committee on International Telephone and Telegraph (CCITT)An abbreviation for Consultative Committee on International Telephone and Telegraph; aninternational standards group now known as the International Telecommunications Union (ITU).CCSA hundred call seconds. This is a standard unit of traffic load that is equal to 100 seconds ofusage.CDVMAn abbreviation for the data/voice multiplexer located in the central office.Central Office (CO)A local switching system (or a portion thereof) and its associated equipment located at a wirecenter.Central Office Connecting Channel (COCC)A tariff rate category which provides for connections, within the same Hub wire center, betweenthe Private Line Transport Channel and other services provided by QWEST. See FCC #1 formore information.Centralized Automatic Message AccountingCentralized Automatic Message Accounting is an arrangement that provides for the recording ofdetailed billing information at a centralized location other than an end office, usually a tandemoffice. CAMA equipment also may be associated with position systems, desks, etc.Centralized Automatic Reporting On Trunks (CAROT) TestingA type of testing that includes the capacity for measuring operational and transmission parameters.ChannelAn electrical or photonic, in the case of fiber optic based transmission systems, communicationspath between two or more points of termination. 3-7
  48. 48. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000Channel, ProgramA one-way electrical or photonic, in the case of fiber optic based transmission systems,communications path between one point and one or more other points.Channel Service Unit (CSU)This unit provides regeneration of the signal received from the network, controls the pulse shapeand amplitude for transmission of the signal into the network, and possibly provides loop-back.The CSU function is frequently found within a Data Service Unit (DSU).Channel Transmission ParameterDenotes an objective, which expresses the performance of a one-way or two-way path.ChannelizeThe process of multiplexing-demultiplexing channels using analog or digital techniques.CharacterLetter, numeral, punctuation, control figure or any other symbol contained in a message.Clear Channel Capability (CCC)A characteristic of a transmission path in which the bit positions allocated for customer data mayrepresent any combination of zeroes and ones.Clear to SendAn EIA or CCITT defined interface control signal that indicates to the Data Terminal Equipment(DTE) whether or not the Data Communications Equipment (DCE) is ready to accept data from theDTE.Closed EndThe end of a switched service which transmits address signals.CODECEquipment that converts an analog signal into a digital signal (binary format) and which maycompress the information content so that less bandwidth is required for transmission compared tothe original signal format. Conversely, the decoder part converts the digital signal back into ananalog signal and may provide for expansion of the signal.Committed Information Rate (CIR) bit/sThe rate at which the network agrees to transfer information, under normal conditions, during atime interval Tc.3-8
  49. 49. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossaryCommon Channel Signaling (CCS)A signaling method in which a single channel conveys, by means of labeled messages, signalinginformation relating to a multiplicity of circuits or calls and other information, such as that used fornetwork management. CCS is defined as a dedicated network for transporting signaling messages.The primary components of the network are STPs, signaling end points (including service controlpoints and service switching points) and data links. The two basic types of CCS signaling are: 1)circuit-associated signaling, to support trunk signaling for call control; 2) and non-circuitassociated signaling, to handle the exchange of queries and responses between CCS SwitchingOffices and data bases (SCPs) or between two CCS Switching Offices. This is also known asTCAP message routing.Common LineA line, trunk, pay telephone line, or other facility provided under the general and/or local exchangeservice tariffs of QWEST Communications, Inc., terminated on a local switching system and whichmay be used to make and/or receive exchange service calls, intra-LATA message service calls,inter-LATA message service calls or international calls.ConditioningDenotes an enhancement to the transmission performance of a voice band channel. Parameter(s)affected are attenuation distortion, envelope delay distortion and noise.Customer Premises Equipment (CPE)Equipment owned and maintained by the customer and located on their side of the End-User Pointof Termination (EU-POT) network interface.CustomersDenotes any individual, partnership or corporation who subscribes to the services provided byQWEST Customers are divided into two distinct and separate categories: (1) carriers, whoprovide interexchange services for hire for others, and (2) end-users, who request services onlyfor their own use.Customer Installation (CI)Equipment and wiring at the customers location on the customer side of the Network Interface.Customer InterfaceThe interface with a customer at a point of termination. 3-9
  50. 50. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000Customer PremisesDenotes a building or portion(s) of a building occupied by a single customer or end-user either asa place of business or residence. Adjacent buildings and the buildings on the same continuousproperty occupied by the customer and not separated by a public thoroughfare, are also consideredthe customers premises.Customer Premises Equipment (CPE)All telecommunication equipment located at a customers location.Customer Provided Equipment (CPE)Equipment owned and maintained by the customer and located on their side of the End-User PointOf Termination (EU-POT) network interface. In the QWEST Digital Data Service application,CPE typically includes the DSU (CSU/DSU) and data terminal equipment which are connected tothe channel.Customer Specified Premises LevelsThe customer may specify both transmit and/or receive levels within ranges as delineated invarious technical publications.Cyclic Redundancy Check (CRC)A method of checking the integrity of received data, where the check uses a polynomial algorithmbased on the content of the data.Data Communications Equipment (DCE)The equipment that provides the functions required to establish, maintain and terminate datatransmission connections; e.g., a modem, as well as the signal conversion and coding required forcommunications between data terminal equipment and data circuit.Data Enhancement (End-Link, Mid-Link Applications)This option provides improved attenuation distortion requirements and establishes limits forenvelope delay distortion, phase jitter, and intermodulation distortion.Data LinkThe Data Link provides the electrical connection between a customers terminal equipment, fromthe Network Interface and the fiber transmission facilities to a QWEST Serving Wire Center.Data Link (DL) - ESFThe overhead portion of a DS1 Clear Channel that may be used for carrying performance andcontrol information across the network. This portion requires 4 kbit. In addition, framing requires2 kbit, and Cyclic Redundancy Check requires 2 kbit.3-10
  51. 51. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossaryData Link Connection Identifier (DLCI)The DLCI is located within the address field of a frame relay packet, and is used to identify eachPVC.Data Service Unit (DSU)Digital, customer premises equipment used to recover timing from a baseband BPRZ signal, andwhich converts from BPRZ line signals to a business machine interface signal such as V.35. At 64kbit/s and below, DSU and Channel Service Unit (CSU) functions are, in modern equipment,combined in a single unit sometimes called a General Service Unit (GSU), Basic Service Unit(BSU) or Data Service Unit-A (DSU-A) so that it is part of the Data Communications Equipment(DCE). Above 64 kbit/s, DSU functions are frequently contained in the Data Terminal Equipment(DTE). The DSU usually contains circuitry to recognize, and respond to, loop-back commandsfrom the serving test center.Data Set Ready (DSR)An EIA or CCITT defined interface control signal that indicates to the Data Terminal Equipment(DTE) whether the Data Communications Equipment (DCE) is ready to transmit or receive data.Data Terminal Equipment (DTE)A generic term for customer terminal equipment that connects to the network through a modem orthrough digital Network Channel Terminating Equipment (NCTE), e.g., a computer or a PBX.Data Terminal Ready (DTR)An EIA or ITU (formerly CCITT) defined control signal that indicates to the Data TerminalEquipment (DTE) that the Data Communications Equipment (DCE) is ready to transmit or receivedata.Data Transmission (107-Type) Test LineAn arrangement that provides for a connection to a signal source providing test signals for one-way testing of data and voice transmission parameters.DATAPHONE® Select-A-Station (DSAS)Denotes a switched voice band private line data system designed to allow a single master stationto communicate with a number of remote stations one at a time. The system enables point-to-pointvoice band connection between the master station at the customer premises and each remotestation. Direct transmission between remote stations is not possible, nor is simultaneouscommunication from the master station to more than one station. 3-11
  52. 52. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000The following terms are used for the DATAPHONE® Select-A-Station: Access Line Denotes the communications path between component stations of the DATAPHONE® Select- A-Station system, obtained through private line access channels. Automatic Step Sequential Denotes a version of the Select-A-Station service which is designed to automatically poll remote stations in fixed sequence at fixed time intervals. Controlled Step Sequential Denotes a version of the Select-A-Station which is designed for continuous in-service control of connection time to each remote station by means of a signal sent from the master station. Data Station Selector (DSS) Denotes a switching device located in QWEST Central Office (CO) having the capability of making connections between a 4-Wire outward transmission port and up to 128 output ports, either 2-Wire or 4-Wire, one at a time, either automatically or under the control of the customers master station.dBmA decibel in which the reference power is one milliwatt.dBrnA unit used to express noise power relative to one picowatt (-90 dBm).dBrn (f1,f2)Noise power in dBrn measured over the frequency band from f1 to f2 without weighting (flat).dBrn 15 kHzNoise power is dBrn weighted according to a 15 kHz flat weighting network defined inANSI/IEEE Standard 743-1984.dBrnCWeighted noise power in dBrn measured by a noise measuring set with C-Message weighting.3-12
  53. 53. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossarydBrnC0Weighted noise power in dBrnC referred to or measured at a zero transmission level point (0TLP).DC ChannelA Direct Current (DC) Channel is an unconditioned 2-Wire channel with DC continuity capable oftransmitting low speed varying signals at rates up to 30 baud. It is also capable of providing atwo-point circuit for control of a transfer arrangement, control of a relay, or a similar contactclosure.DDS End OfficeA central office which provides all DDS Hub functions except for subrate multiplexing andbridging functions.DDS HubA Hub, identified in the FCC #4 (NECA) tariff, used to provide multiplexing, test access, cross-connecting and bridging functions for QWEST Digital Data Service (DDS) or DDS like services.Decibel (dB)A unit measurement of transmission loss, gain, or relative level. It is the logarithmic unit of signalpower ratio most commonly used in telephony. It is used to express the relationship between twosignal powers, usually between two acoustic, electrical, or optical signals; it is equal to ten timesthe common logarithm of the ratio of the two signal powers.Demarcation PointSee Network InterfaceDemultiplexingThe opposite of multiplexing. That is, the multiplexer combines signals and the demultiplexertakes them apart again. Also see Multiplexing.Destination AddressAn 8-octet field contained within the Level 3 Protocol Data Unit, which identifies a specific endpoint of the destination SNI. 3-13
  54. 54. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000Dial Pulse (DP)A means of signaling consisting of regular momentary interruptions of a direct or alternatingcurrent path at the sending end in which the number of interruptions corresponds to the value of adigit or a character. The interruptions are usually produced by a rotary telephone dial, but may beproduced by a sender switching system.Dialed Number Identification Service (DNIS)An optional feature offered for WALs that enables trunk-side termination of the WAL and includes4-digit outpulsing of an identification number to the end-user. This 4-digit outpulsing allows anend-user having a single service group, with multiple 800 numbers, to identify which 800 numberwas dialed.Digital ConnectivityDenotes central offices or customer premises that are connected with digital transport facilities.Digital Cross-connect System (DCS)An intelligent (processor controlled) digital terminal that provides the capability to performelectronic cross-connects on digital channels operating at or below the bit rate of the transportsystems terminated on the unit. The unit may also provide other features, e.g., bridging.Digital Data HubA QWEST designated serving wire center at which bridging, multiplexing, test access, cross-connecting functions are performed.Digital Data Service (DDS)Generically describes digital data service offering at 64 kbit/s and below.3-14
  55. 55. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossaryDigital Hierarchy LevelThe level in the digital hierarchy. The levels and the respective bit rates are: Level Bit Rate DS0 64. kbit/s DS1 1.544 Mbit/s DS1C 3.152 Mbit/s DS2 6.312 Mbit/s DS3 44.736 Mbit/s DS4NA 139.264 Mbit/s DS4 274.176 Mbit/sDigital IslandTwo or more central offices connected with digital interoffice transport facilities that have nodigital connectivity beyond these offices.Digital Loop Carrier (DLC)A digital transport facility used to carry circuits or channels on part of all of the loop between theserving wire center and the customers location. Copper or fiber is normally used as the transportmedium.Digital Reference Signal (DRS)The digital representation of a 1004 Hz tone at 0 dBm0.Digital Test Access Unit+ (DTAU)Equipment interposed in the DS1 bit stream providing access to the DS0 and DS1 bit stream fortesting and performance monitoring capabilities.Digital Transmission FacilitiesMay include both loop and interoffice facilities which perform multiplexing, demultiplexing, andtransport of digital signals between the SS Exchange Termination and the Subscriber AccessTermination.Discard Eligibility (DE) Indicator bitA single bit located within the address field of a frame relay packet, which is used to indicate thata frame should be discarded in preference to other frames during a frame discarding process. 3-15
  56. 56. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000Disconnect SupervisionA change of state on a circuit from off-hook (busy) to on-hook (idle). This change may be initiatedby the originating or the terminating end-user.DS0AA DS0 signal that carries data for only one signal.DS0BA DS0 signal that carries data multiplexed from several subrate signals.DS1 Clear ChannelDenotes that 1.535 Mbit/s of a 1.544 Mbit/s DS1 facility are available for customer information.The remaining 8 kilobits, or overhead, are for error correction, framing, and networkperformance/status/information.Dual Tone Multifrequency Signaling (DTMF)A signaling method that employs signals consisting of two sinusoidal voice frequency components,one from a group of four low frequencies and the other from a group of four high frequencies.E & M Signaling ArrangementsDenotes a method of transmitting supervisory information between a switching machine or an end-user and a signaling system.Echo ControlThe control of reflected signals in a telephone channel.Echo Path Loss (EPL)The echo path loss, in decibels, is the difference between the incident and reflected signal powers.Echo Return Loss (ERL)The weighted average of the return losses of all frequencies between 560 and 1965 Hz.Effective 2-WireA channel consisting of a single electrical path capable of voice grade transmission in bothdirections, but not simultaneously, and which is 2-Wire at the points of termination.3-16
  57. 57. QWEST Tech Pub 77001 Chapter 3Issue B, November 2000 GlossaryEffective 4-WireAn effective 4-Wire channel is comprised entirely of 4-Wire facilities. The channel may beterminated as 2-Wire or 4-Wire at the end-user. The termination at the Interexchange Carrier PointOf Termination (IC POT) must be 4-Wire. When terminated as 2-Wire it is not possible to ensureindependent information transmission simultaneously in both directions.Embedded Operations Channel (EOC)Use of some bits in the bit stream of a transport system for maintenance purposes.EncryptionA process of encoding and decoding information so that it is not easily decipherable by unintendedrecipients.End OfficeA designation of a QWEST switching system that occupies the lowest level of the public switchednetwork hierarchy. It is the designation of a switching system that connects lines to lines, and linesto trunks (a local switching system).End Office SwitchThe term "End Office Switch" denotes a QWEST switching system where local exchange Servicesare terminated for purposes of interconnection to trunks. Included are Remote Switching Modulesand Remote Switching Systems served by a host office in a different wire center.End-User (EU)The term "End-User" denotes any customer of telecommunications service that is not a carrier,except that a carrier shall be deemed to be an "end-user" to the extent that such carrier uses atelecommunications service for administrative purposes without making such service available toothers, directly or indirectly. The term is frequently used to denote the difference between aCarrier interface and an interface subject to unique regulatory requirements at non-Carriercustomer premises (FCC Part 68, etc.).End-User POT (EU-POT)The Network Interface at the end-users premises at which QWESTs responsibility for theprovision of service ends. 3-17
  58. 58. Chapter 3 QWEST Tech Pub 77001Glossary Issue B, November 2000Enhanced ServicesAs defined by the FCC, enhanced services are any services offered over common carriertransmission facilities that employ computer processing applications that act on the format, content,code, protocol or similar aspects of the subscribers transmitted information; that provide thesubscriber with additional, different or restructured information; or involve customer interactionwith stored information. Examples of enhanced services include videotex, voice storage andretrieval, on-line business information, on-line travel information, electronic mail and protocolconversion in connection with packet switching service.Enhanced Services Provider (ESP)A business that provides enhanced services by using the ONA services made available byregulated telecommunications providers; also refers to interexchange carriers and resellers that actas ESPs.Entry SwitchSee first point of switching.Envelope Delay Distortion (EDD)A measure of the linearity of the phase-verses-frequency characteristic of a channel.Equal Level Echo Path Loss (ELEPL)The measure of echo path loss at a 4-Wire interface which is corrected by the difference betweenthe transmit and receive Transmission Level Points (TLPs). ELEPL = EPL - TLPtransmit + TLPreceiveEqualizationThe process of correcting frequency and/or phase distortion of a circuit by the introduction ofnetworks to compensate for the difference in attenuation and/or time delay at the variousfrequencies in the transmission band.Error Correction - DDSError correction is a technique used with "dataport" provisioning methods to improve transmissionquality. The subrate DS0A dataport signal contains multiple copies which are used to employ a"voting" scheme to minimize errors. The use of error correction above the 19.2 kbit/s raterequires a second DS0 channel.Error Free Second (EFS)A one-second interval which does not contain any bit-errors. Usually expressed as a percent overa consecutive 24-hour period.3-18