SIST EN 300 324-1 V2.1.1:2005
(Main)V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN); Part 1: V5.1 interface specification
General Information
- Abstract
The work to be done is included as Annex D in the V5.2 resolution meeting (PE9925)
- Status
- Published
- Publication Date
- 31-Dec-2004
- Technical Committee
- SPN - Services and Protocols for Networks
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Jan-2005
- Due Date
- 01-Jan-2005
- Completion Date
- 01-Jan-2005
Overview
SIST EN 300 324-1 V2.1.1:2005 defines the specification for the V5.1 interface at the digital Local Exchange (LE), supporting connectivity between a Local Exchange and an Access Network (AN). Developed under the European Telecommunications Standards Institute (ETSI) and adopted by the Slovenian Institute for Standardization (SIST), this standard provides a comprehensive framework for implementing the V5.1 interface. It establishes requirements to ensure reliable interoperability, robust signalling, and efficient service delivery for telecommunications networks employing the V5.1 interface.
The standard is crucial for operators and manufacturers aiming for seamless integration between access networks and local exchanges, enabling multi-service delivery over a single, standardized interface.
Key Topics
V5.1 Interface Fundamentals
- Describes the electrical, physical, and procedural characteristics for the V5.1 interface
- Defines the protocol architecture, including data-link and envelope functions
- Covers timeslot allocation, multiplexing, and congestion control mechanisms
Switching and Signalling Systems
- Outlines requirements for both circuit-switched (PSTN) and packet-based (ISDN BA) service support
- Specifies protocols for call control, port management, and state indication
Service Architecture
- Supports on-demand services such as PSTN and ISDN Basic Access through defined procedures and service models
- Allows for permanent, semi-permanent, and leased line capabilities
Control and Provisioning
- Details the principles for controlling user ports, including activation, blocking, and monitoring
- Addresses provisioning strategies for rapidly adapting network resources to commercial and operational needs
Protocol and Layered Structure
- Describes Layer 2 (LAPV5 variants) for reliable data transfer and Layer 3 for service-level control
- Provides mechanisms for flow and congestion management
Applications
The V5.1 interface specification is widely used in modern telecommunications networks with the following practical applications:
Access Network Integration
- Enables network operators to connect various types of access networks, such as copper-based or fiber-based last-mile networks, to digital local exchanges
- Simplifies multi-vendor deployment through a standardized interface
Service Expansion
- Supports delivery of legacy (PSTN) and advanced (ISDN) services without significant hardware changes
- Facilitates the migration to next-generation network architectures by allowing coexistence of new and legacy technologies
Operational Efficiency
- Streamlines provisioning and management processes in the local exchange, reducing operational complexity and cost
- Improves scalability and flexibility for network upgrades, maintenance, and expansion
Interoperability Assurance
- Ensures equipment from different manufacturers can operate reliably together, promoting vendor diversity and competitive procurement
Related Standards
For organizations and professionals implementing SIST EN 300 324-1 V2.1.1:2005, the following related standards may also be relevant:
EN 300 324-2 (V5.2 Interface Specification)
- Extends the capabilities of V5.1, allowing multiplexed connections and additional service types
ETSI ETS 300 035 and ETSI EN 300 347
- Specify requirements for other local exchange and access network interfaces
ITU-T Recommendation Q.921 / Q.931
- Reference protocols for Layer 2 and Layer 3 signalling, often encapsulated by the V5.x interfaces
IEC 60870 Series
- Related to data transmission and protocol structures in industrial and telecom environments
In summary, SIST EN 300 324-1 V2.1.1:2005 is an essential standard for ensuring efficient, scalable, and interoperable digital local exchange and access network integration across European and global telecommunications infrastructure.
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Frequently Asked Questions
SIST EN 300 324-1 V2.1.1:2005 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN); Part 1: V5.1 interface specification". This standard covers: The work to be done is included as Annex D in the V5.2 resolution meeting (PE9925)
The work to be done is included as Annex D in the V5.2 resolution meeting (PE9925)
SIST EN 300 324-1 V2.1.1:2005 is classified under the following ICS (International Classification for Standards) categories: 33.040.30 - Switching and signalling systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 324-1 V2.1.1:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vmesniki V pri digitalnih krajevnih centralah (LE) – Vmesnik V5.1 za podporo dostopovnega omrežja (AN) – 1. del: Specifikacija vmesnika V5.1V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN); Part 1: V5.1 interface specification33.040.30Komutacijski in signalizacijski sistemSwitching and signalling systemsICS:Ta slovenski standard je istoveten z:EN 300 324-1 Version 2.1.1SIST EN 300 324-1 V2.1.1:2005en01-januar-2005SIST EN 300 324-1 V2.1.1:2005SLOVENSKI
STANDARD
ETSIEN300324-1V2.1.1(2000-04)EuropeanStandard(Telecommunicationsseries)VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part1:V5.1interfacespecificationSIST EN 300 324-1 V2.1.1:2005
ETSIETSIEN300324-1V2.1.1(2000-04)2ReferenceREN/SPAN-09106-1KeywordsVinterface,V5interface,LE,ANETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88Internetsecretariat@etsi.frIndividualcopiesofthisETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frImportantnoticeThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 324-1 V2.1.1:2005
ETSIETSIEN300324-1V2.1.1(2000-04)3ContentsIntellectualPropertyRights.13Foreword.13Introduction.141Scope.152References.163Definitionsandabbreviations.173.1Definitions.173.2Abbreviations.204Electricalandphysicalinterfacerequirements.215Proceduralinterfacerequirements.266Servicesandarchitectureaspectsandrequirements.296.1On-demandservices.296.1.1PSTN.296.1.2ISDNBasicAccess(ISDN-BA).296.2PermanentLine(PL)capability.306.3Semi-permanentleasedline.306.4Permanentleasedlineservices.317Controlandprovisioning.317.1Controlprinciples.317.1.1Generalrequirementsandassumptions.317.1.2ControlofISDNuserportforthePLcapability.337.1.2.1Statementsandassumptions.337.1.2.2ISDNandPLcapability.337.1.2.3DecouplingofANandLEFSM.337.2Provisioningstrategyandrequirements.337.2.1General.337.2.2Provisioningrequirements.338Protocolarchitectureandmultiplexingstructure.358.1Functionaldescription.358.2ProtocolrequirementsforPSTNandISDN.368.3Timeslots.378.4TimeslotallocationforC-channels.378.5L2sublayeringandmultiplexingonC-channels.388.6L3multiplexing.388.7Congestioncontrol.388.7.1Flowcontrolendtoend.388.7.2CongestioncontrolontheV5.1interface.388.7.3BlockingofISDNuserportsatL2.388.7.4FlowcontrolusingLAPV5-DLmechanisms.399EnvelopeFunctionsublayerofLAPV5(LAPV5-EF).399.1Framestructureforpeer-to-peercommunication.399.1.1General.399.1.2Flagsequence.399.1.3Interframetimefill.399.1.4Envelopefunctionaddressfield.399.1.5Envelopeinformationfield.409.1.6Transparency.409.1.7FCS.409.1.8Formatconvention.409.1.9Invalidframes.40SIST EN 300 324-1 V2.1.1:2005
ETSIETSIEN300324-1V2.1.1(2000-04)49.1.10Frameaborts.419.2Formatoffieldsfordatalinkenvelopepeer-to-peercommunication.419.2.1Envelopefunctionaddressfieldformat.419.2.2Addressfieldvariables.419.2.2.1Addressfieldextensionbit.419.2.2.2EFaddr.4110DatalinksublayerofLAPV5(LAPV5-DL).4110.1Framestructureforpeer-to-peercommunication.4110.1.1General.4110.1.2Linkaddressfield.4210.1.3Controlfield.4210.1.4Informationfield.4210.1.5Formatconvention.4210.2Invalidframes.4210.3Elementsofproceduresandformatsoffieldsfordatalinksublayerpeer-to-peercommunication.4210.3.1Linkaddressfieldformat.4210.3.2Linkaddressfieldvariables.4310.3.2.1Addressfieldextension(EA)bit.4310.3.2.2Command/responsefieldbit.4310.3.2.3V5DLaddr.4310.3.3Controlfieldformats.4310.3.4Controlfieldparametersandassociatedstatevariables.4310.3.5Frametypes.4310.4Definitionofthepeer-to-peerproceduresofthedatalinksublayer.4310.4.1General.4310.4.2ProcedurefortheuseofthePoll/Final(P/F)bit.4510.4.3TerminalEndpointIdentifier(TEI)managementprocedures.4510.4.4Automaticnegotiationofdatalinklayerparameters.4510.4.5Proceduresforestablishmentandreleaseofmultipleframeoperation.4510.4.5.1Establishmentofmultipleframeoperation.4510.4.5.1.1General.4510.4.5.1.2Establishmentprocedures.4610.4.5.1.3ProcedureonexpiryoftimerT200.4610.4.5.2Informationtransfer.4710.4.5.3Terminationofmultipleframeoperation.4710.4.5.4Link-not-establishedstate.4710.4.5.5Collisionofunnumberedcommandsandresponses.4710.4.5.5.1Identicaltransmittedandreceivedcommands.4710.4.5.5.2Differenttransmittedandreceivedcommands.4710.4.5.6UnsolicitedDMresponseandSABMEcommand.4710.4.6Proceduresforinformationtransferinmultipleframeoperation.4810.4.7Re-establishmentofmultipleframeoperation.4810.4.7.1Criteriaforre-establishment.4810.4.7.2Procedures.4810.4.8Exceptionconditionreportingandrecovery.4810.4.9Listofsystemparameters.4910.4.10Datalinkmonitorfunction.4910.4.10.1General.4910.4.10.2Datalinklayersupervisioninthemultiple-frame-establishedstate.4910.4.10.3Connectionverificationprocedures.4910.4.11PSTNandcontroldatalinkFSMandrequirements.4910.4.11.1General.5010.4.11.2DatalinkFSM.5111ANframerelaysublayer.5211.1General.5211.2Invalidframes.5211.3DetaileddescriptionoftheANframerelayfunction.5311.3.1FramereceivedfromLE.5311.3.2FramereceivedfromISDNuserport.53SIST EN 300 324-1 V2.1.1:2005
ETSIETSIEN300324-1V2.1.1(2000-04)512Sublayer-to-sublayercommunicationandMF.5412.1LAPV5-EFtoLAPV5-DLcommunication.5412.2LAPV5-DLtoLAPV5-EFcommunication.5412.3AN-FRtoLAPV5-EFcommunication.5412.4LAPV5-EFtoAN-FRcommunication.5413PSTNsignallingprotocolspecificationandL3multiplexing.5413.1General.5413.1.1Introduction.5413.1.2Separationofresponsibilities.5513.1.3NationalspecificPSTNsignalinformationelements.5513.2PSTNprotocolentitydefinition.5613.2.1DefinitionofPSTNpathstatesandexplanation.5613.2.1.1PathstatesintheAN(AN(PSTN)).5613.2.1.2PathstatesintheLE(LE(PSTN)).5613.2.2DefinitionofPSTNprotocolprimitives,messagesandtimers.5713.3PSTNprotocolmessagedefinitionandcontent.5813.3.1Establish.5913.3.2EstablishACK.5913.3.3Signal.6013.3.4SignalACK.6013.3.5Status.6113.3.6Statusenquiry.6113.3.7Disconnect.6113.3.8Disconnectcomplete.6113.3.9Protocolparameter.6213.4Generalmessageformatandinformationelementcoding.6213.4.1Overview.6213.4.2Protocoldiscriminator.6313.4.3L3addr.6313.4.4Messagetype.6313.4.5Codingofotherinformationelements.6413.4.6Singleoctetinformationelements.6513.4.6.1Pulsenotification.6513.4.6.2Line-information.6513.4.6.3State.6513.4.6.4Autonomous-signalling-sequence.6613.4.6.5Sequence-response.6613.4.7Informationelementswithvariablelengthformat.6613.4.7.1Sequence-number.6613.4.7.2Cadenced-ringing.6713.4.7.3Pulsed-signal.6813.4.7.4Steady-signal.6913.4.7.5Digit-signal.7013.4.7.6Recognition-time.7113.4.7.7Enable-autonomous-acknowledge.7113.4.7.8Disable-autonomous-acknowledge.7213.4.7.9Cause.7313.4.7.10Resource-unavailable.7413.4.7.11Enable-metering.7413.4.7.12Metering-report.7513.4.7.13Attenuation.7613.5PSTNcallcontrolprocedures.7613.5.1General.7713.5.2Handlingoferrorconditions.7713.5.2.1Protocoldiscriminatorerror.7813.5.2.2L3addrerror.7813.5.2.3Messagetypeerror.7813.5.2.4Informationelementoutofsequence.7913.5.2.5Repeatedinformationelements.7913.5.2.6Mandatoryinformationelementmissing.79SIST EN 300 324-1 V2.1.1:2005
ETSIETSIEN300324-1V2.1.1(2000-04)613.5.2.7Unrecognizedinformationelement.8013.5.2.8Contenterrorofmandatoryinformationelement.8013.5.2.9Contenterrorofoptionalinformationelement.8013.5.2.10Unexpectedmessage.8113.5.2.11Optionalinformationelementnotallowed.8113.5.2.12Optionalinformationelementmissing.8113.5.2.13Statusenquiryprocedure.8113.5.2.14Statusprocedure.8213.5.3Pathrelatedprocedures.8313.5.3.1PathinitiationbyAN.8413.5.3.1.1Subscriberseizurerequest.8413.5.3.1.2Subscriberseizureconfirmation.8413.5.3.2PathinitiationbyLE.8513.5.3.2.1Establishrequest.8513.5.3.2.2Establishacknowledge.8613.5.3.3Pathcollision.8613.5.3.3.1Originatingcallprevail.8713.5.3.3.2Destinationcallprevail.8713.5.3.4Pathactive.8713.5.3.4.1Normaloperation.8713.5.3.4.2Exceptionalprocedures.8813.5.3.5Disconnectingpath.8813.5.3.5.1Disconnectrequest.8913.5.3.5.2Disconnectacknowledge.9013.5.3.6Lineinformationprocedure.9013.5.3.6.1Normaloperation.9013.5.3.6.2Exceptionalprocedures.9113.5.4Non-pathrelatedprocedures.9113.5.4.1Protocolparameterprocedures.9113.5.4.1.1Normaloperation.9113.5.4.1.2Exceptionalprocedures.9113.5.4.2Portblockingprocedures.9213.5.4.3Restartprocedure.9213.5.5L3errordetectionprocedure.9313.5.5.1MultipleSIGNALmessageoperation-variables,sequencenumbersandtimers.9313.5.5.1.1Modulus.9313.5.5.1.2SendsequencevariableS(S).9313.5.5.1.3AcknowledgesequencevariableS(A).9313.5.5.1.4SendsequencenumberM(S).9313.5.5.1.5ReceivesequencevariableS(R).9313.5.5.1.6ReceivesequencenumberM(R).9413.5.5.1.7TimerTt.9413.5.5.1.8TimerTr.9413.5.5.2MultipleSIGNALmessageoperation-procedures.9413.5.5.2.1Initialization.9413.5.5.2.2SendingaSIGNALmessage.9413.5.5.2.3SendingaSIGNALACKmessage.9413.5.5.2.4ReceivingaSIGNALmessage.9413.5.5.2.5ReceivingaSIGNALACKmessage.9413.5.5.2.6StartoftimerTr.9513.5.5.2.7StopoftimerTr.9513.5.5.2.8TimeoutoftimerTr.9513.5.5.2.9StartoftimerTt.9513.5.5.2.10StopoftimerTt.9513.5.5.2.11TimeoutoftimerTt.9513.5.5.2.12ReceivingaDISCONNECTmessage.9513.5.5.3MultipleSIGNALmessageoperation-values.9513.5.5.3.1NumberofoutstandingSIGNALmessages.9513.5.5.3.2TimerTt.9513.5.5.3.3TimerTr.95SIST EN 300 324-1 V2.1.1:2005
ETSIETSIEN300324-1V2.1.1(2000-04)713.6Listofsystemparameters.9613.7ANandLEsidestatetables.9714Controlrequirementsandprotocol.10314.1ISDNuserportstatusindicationandcontrolprotocol.10414.1.1Generalaspects.10414.1.2Eventsandfunctionelementsrelevantforthecontrolofthestatemachines.10514.1.3ISDNuserportFSMs,AN(ISDNport)andLE(ISDNport).10714.1.3.1Descriptionofthestates.10714.1.3.2Definitionofportcontrolstates.10814.1.3.2.1ISDNuserportFSM-AN(ISDNport).10814.1.3.2.2ISDNUserportFSM-LE(ISDNport).10914.1.3.3Principlesandprocedures.11014.1.3.3.1General.11014.1.3.3.2Blocking.11014.1.3.3.3Blockingrequest.11014.1.3.3.4Co-ordinatedunblocking.11014.1.3.3.5Activation.11114.1.3.4ISDNportFSMattheAN.11214.1.3.5ISDNportFSMattheLE.11414.1.4Performancemonitoringaspects.11514.2PSTNuserportstatusindicationandcontrolprotocol.11514.2.1Generalaspects.11514.2.2Eventsandfunctionelementsrelevantforthecontrolofthestatemachines.11614.2.3PSTNuserportFSM,AN(PSTNport)andLE(PSTNport).11714.2.3.1Descriptionofthestates.11714.2.3.2Definitionofportcontrolstates.11714.2.3.2.1PSTNuserportFSM-AN(PSTNport).11714.2.3.2.2PSTNuserportFSM-LE(PSTNport).11814.2.3.3Principlesandprocedures.11814.2.3.3.1General.11814.2.3.3.2Blocking.11814.2.3.3.3Blockingrequest.11814.2.3.3.4Co-ordinatedunblocking.11914.2.3.4PSTNportFSMattheAN.11914.2.3.5PSTNportFSMattheLE.11914.3InterfaceL1maintenancerequirementsandprotocol.12014.3.1Eventsandfailurereports.12014.3.2Detectionalgorithmforeventsandsignals.12114.3.3V5.1interfaceL1FSM.12114.3.4Requirementsandproceduresfortheadditionalfunctions.12214.4Controlprotocol.12214.4.1Controlprotocolmessagedefinitionandcontent.12214.4.1.1PORTCONTROLmessage.12314.4.1.2PORTCONTROLACKmessage.12314.4.1.3COMMONCONTROLmessage.12414.4.1.4COMMONCONTROLACKmessage.12414.4.2Generalmessageformatandinformationelementcoding.12414.4.2.1Overview.12414.4.2.2Protocoldiscriminatorinformationelement.12514.4.2.3L3addrinformationelement.12514.4.2.4Messagetypeinformationelement.12514.4.2.5Otherinformationelements.12614.4.2.5.1Codingrules.12614.4.2.5.2Performancegradinginformationelement.12614.4.2.5.3Rejectioncauseinformationelement.12714.4.2.5.4Controlfunctionelementinformationelement.12714.4.2.5.5ControlfunctionIDinformationelement.12714.4.2.5.6Variantinformationelement.12814.4.2.5.7InterfaceIDinformationelement.12814.4.3Statedefinitionsofthecontrolprotocol.
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