SIST EN 301 165 V1.1.2:2003
(Main)Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH leased lines; Connection Characteristics
General Information
- Abstract
The revision of this document is exclusively restricted to the provisions related to Safety. As it is a change in the reference mechanism, and it does not include a technical change, the revision will be editorial.
- Status
- Published
- Publication Date
- 30-Nov-2003
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2003
- Due Date
- 01-Dec-2003
- Completion Date
- 01-Dec-2003
- Mandate
- T-324
Overview
SIST EN 301 165 V1.1.2:2003 is a European standard published by SIST (Slovenski inštitut za standardizacijo) that defines the connection characteristics for Synchronous Digital Hierarchy (SDH) leased lines. The document is part of the Transmission and Multiplexing (TM) series under the telecommunications framework. This standard ensures compatibility between terminal equipment and SDH leased line interfaces at network termination points, covering both electrical and optical connections. The 2003 revision focuses exclusively on safety-related provisions, with editorial changes and no updates to technical requirements.
Key Topics
- SDH Leased Line Interfaces
The standard specifies the interface characteristics for SDH leased lines, addressing both electrical (STM-1) and optical (STM-1, STM-4) interfaces. - Network Termination Point (NTP) and Terminal Equipment (TE)
Detailed requirements for network and terminal interfaces, ensuring interoperability for equipment installed at SDH leased line endpoints. - Section and Path Layer Functions
Defines atomic functions at the section and path layers to maintain network integrity and supervisory functions, including adaptation and trail termination. - Mechanical and Safety Considerations
Outlines connector types, such as 75Ω coaxial and optical sockets, while referring to international standards for mechanical and safety requirements. - Reference Mechanisms
The revision updates mechanisms for reference to safety standards without altering technical specifications.
Applications
SIST EN 301 165 V1.1.2:2003 provides practical value to telecommunications network operators, equipment manufacturers, and service providers by:
- Ensuring Interface Compatibility:
By standardizing the connection characteristics at NTPs, this SDH leased line standard guarantees interoperability between different vendors’ equipment for both part-time and full-time leased lines. - Supporting Network Expansion and Upgrades:
The precise definitions of section and path layer functions facilitate smooth integration of new terminal equipment or network components, minimizing disruption and ensuring reliable service delivery. - Promoting Reliable SDH Transmission:
Specification of mechanical characteristics and adaptation functions ensures stable transmission, integrity, and supervision over SDH leased lines. - Facilitating Regulatory Compliance:
By referencing established safety standards (such as EN 60950 for safety of IT equipment), implementation of SDH leased lines can adhere to recognized European and international regulations. - Optimizing Maintenance and Testing:
The document outlines the framework for conformance testing during equipment manufacture and installation, helping organizations align their quality control with recognized standards. - Risk Management:
Addressing grounding, shielding, and interface types helps mitigate potential faults or hazards in telecom networks where leased SDH lines are used.
Related Standards
SIST EN 301 165 V1.1.2:2003 should be used in conjunction with companion and referenced standards for comprehensive coverage of SDH leased line deployment. Some key related standards include:
- SIST EN 301 164: SDH leased lines; Connection characteristics – details specific connection parameters between NTPs.
- EN 300 417 Series: Multiple parts for generic requirements of transport functionality, physical section layer functions, regenerator and multiplex section layer functions, path layer functions, and synchronization.
- EN 300 417-2-1: Physical section layer functions
- EN 300 417-3-1: Regenerator and multiplex section layer
- EN 300 417-4-1: SDH path layer functions
- EN 300 417-6-1: Synchronization functions
- EN 60950: Safety of information technology equipment.
- IEC 60169-8/13: RF connectors specifications for electrical interfaces.
- ISO/IEC 10173: ISDN primary rate access connector definitions.
- ITU-T G.825, G.704: Jitter and network timing in digital networks based on SDH.
- IEC 60364-5-548: Earthing and equipotential bonding for IT installations.
Following these standards ensures comprehensive compliance and optimal performance for SDH leased lines and interfaces in modern telecommunications infrastructure.
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Frequently Asked Questions
SIST EN 301 165 V1.1.2:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH leased lines; Connection Characteristics". This standard covers: The revision of this document is exclusively restricted to the provisions related to Safety. As it is a change in the reference mechanism, and it does not include a technical change, the revision will be editorial.
The revision of this document is exclusively restricted to the provisions related to Safety. As it is a change in the reference mechanism, and it does not include a technical change, the revision will be editorial.
SIST EN 301 165 V1.1.2:2003 is classified under the following ICS (International Classification for Standards) categories: 33.040.20 - Transmission systems; 33.040.50 - Lines, connections and circuits. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 301 165 V1.1.2:2003 is associated with the following European legislation: Standardization Mandates: T-324. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 301 165 V1.1.2:2003 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.Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDH leased lines; Connection Characteristics33.040.50Vodi, zveze in tokokrogiLines, connections and circuits33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:EN 301 165 Version 1.1.2SIST EN 301 165 V1.1.2:2003en01-december-2003SIST EN 301 165 V1.1.2:2003SLOVENSKI
STANDARD
ETSIEN301165V1.1.2(2000-06)EuropeanStandard(Telecommunicationsseries)TransmissionandMultiplexing(TM);SynchronousDigitalHierarchy(SDH);SDHleasedlines;ConnectionCharacteristicsSIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)2ReferenceREN/TM-01087Keywordsleasedline,ONP,SDH,transmissionETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)3ContentsIntellectualPropertyRights.4Foreword.41Scope.52References.63Definitions,symbolsandabbreviations.73.1Definitions.73.2Symbols.93.3Abbreviations.104NetworkandterminalinterfacesforVirtualContainer(VC)leasedlineconnection.114.1SectionlayerfunctionsforNetworkTermination(NT)andTerminalEquipment(TE).114.1.1STM-1sectionlayersfunctionsforNTandTE.114.1.2STM-4sectionlayersfunctionsforNTandTE.144.2PathlayerfunctionsforNT.154.2.1NetworkpathlayerfunctionsforVC-4leasedlineconnections.154.2.2NetworkpathlayerfunctionsforlowerorderVCleasedlineconnections.154.3PathlayersfunctionsforTE.164.3.1TerminalpathlayerfunctionsforVC-4leasedlineconnections.164.3.2TerminalpathlayerfunctionsforlowerorderVCleasedlineconnections.164.4MechanicalcharacteristicsforNTandTEinterfaces.174.4.1ConnectorsfortheelectricalSTM-1interface.174.4.2ConnectorsforopticalSTM-Ninterfaces.174.5Safety.184.6AU/TUnumberingscheme.185ApplicationofEN300417-2-1.186ApplicationofEN300417-3-1.207ApplicationofEN300417-4-1.228ApplicationofEN300417-6-1.28Bibliography.30History.31SIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeTransmissionandMultiplexing(TM).NationaltranspositiondatesDateoflatestannouncementofthisEN(doa):30September2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31March2001DateofwithdrawalofanyconflictingNationalStandard(dow):31March2001SIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)51ScopeThepresentdocumentdefinestheatomicfunctionsrelevantfortheinterfacepresentationsofSynchronousDigitalHierarchy(SDH)leasedlinesattheNetworkTerminationPoint(NTP)andtheTerminalEquipment(TE).Itspecifiesthetechnicalrequirementsforelectrical,optical,regeneratorandmultiplexsectionlayerandSDHpathlayers.Thespecificationispresentedasadeltainformationoftheequipmentspecificationof:− EN300417-2-1[8]forSTM-1electricalandopticalandSTM-4opticalsectionlayer;− EN300417-3-1[9]forSTM-1andSTM-4regeneratorsectionandmultiplexsectionlayer;− EN300417-4-1[10]forSDHpathlayers(VC-4,VC-3,VC-2andVC-12);− EN300417-6-1[11]forsynchronizationlayerfunctions.Thefollowingphysicalsectionlayersareused:− STM-1electricalinterface;− STM-1opticalintra-officeinterface;− STM-1opticalshorthaulinterfacesat1300nm;− STM-4opticalintra-officeinterface;− STM-4opticalshorthaulinterfacesat1300nm.Theinterfacemarginsaredefinedsuch,thatinterconnectionofdifferentopticalinterfacesispossiblewhenanappropriateattenuationisinserted.AconnectionispresentedviainterfacesatNTPs.Thepresentdocumentdefinesthenetworkinterfaceaspresentedbytheleasedlineproviderandshouldbeusedinconjunctionwiththecompanionstandard,EN301164[5],specifyingtheconnectioncharacteristicsbetweenNTPsoftheleasedline.Thepresentdocumentandtheconnectioncharacteristicstandardtogetherdescribethetechnicalcharacteristicsoftheleasedline.Thepresentdocumentisapplicableforleasedlines,includingparttimeleasedlines,forwhichtheestablishmentorreleasedoesnotrequireanyprotocolexchangeorotherinterventionattheNTP.ThepresentdocumentistoensurethattheinterfaceoftheterminalequipmentiscompatiblewiththeSDHleasedlineinterface.ThepresentdocumentisapplicabletoallinterfacesdesignedforconnectiontotheSDHleasedlines.CustomerpremiseswiringandinstallationbetweenterminalequipmentandtheNTPareoutsidethescopeofthepresentdocument.TheconformancetestofthesectionandpathlayerfunctionswillbeaddressedunderworkitemsEN300417-x-3(x=2,3,4and6).SomeofthetestsdescribedinthoseENsarenotdesignedtobeappliedtotheinterfaceofaninstalledleasedline;suchtestsmaybeappliedtoequipmentofthekindusedtoprovidetheinterface.Thepresentdocumentdoesnotincludeextradetailsconcerningtheimplementationoftests,nordoesitincludeinformationofanyrelevantregulations.ThepresentdocumentdoesnotspecifythecircumstancesinwhichthetestsgiveninEN300417-x-3(x=2,3,4and6)aretobeperformed.SIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)62ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]EN60950:"Safetyofinformationtechnologyequipment,includingelectricalbusinessequipment".[2]IEC60169-8(1978):"Radio-frequencyconnectors-Part8:R.F.coaxialconnectorswithinnerdiameterofouterconductor6.5mm(0.256in)withbayonetlock-Characteristicimpedance50Ω(TypeBNC)".[3]IEC60169-13(1976):"Radio-frequencyconnectors-Part13:R.F.coaxialconnectorswithinnerdiameterofouterconductor5.6mm(0.22in)-Characteristicimpedance75Ω(Type1.6/5.6)-Characteristicimpedance50Ω(Type1.8/5.6)withsimilarmatingdimensions".[4]ISO/IEC10173(1998):"Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-InterfaceconnectorandcontactassignmentsforISDNprimaryrateaccessconnectorlocatedatreferencepointsSandT".[5]ETSIEN301164:"TransmissionandMultiplexing(TM);SynchronousDigitalHierarchy(SDH);SDHleasedlines;Connectioncharacteristics".[6]ETSIETS300147(1997):"TransmissionandMultiplexing(TM);SynchronousDigitalHierarchy(SDH);Multiplexingstructure".[7]ETSIEN300417-1-1:"TransmissionandMultiplexing(TM);Genericrequirementsoftransportfunctionalityofequipment;Part1-1:Genericprocessesandperformance".[8]ETSIEN300417-2-1:"TransmissionandMultiplexing(TM);Genericrequirementsoftransportfunctionalityofequipment;Part2-1:SynchronousDigitalHierarchy(SDH)andPlesiochronousDigitalHierarchy(PDH)physicalsectionlayerfunctions".[9]ETSIEN300417-3-1:"TransmissionandMultiplexing(TM);Genericrequirementsoftransportfunctionalityofequipment;Part3-1:SynchronousTransportModule-N(STM-N)regeneratorandmultiplexsectionlayerfunctions".[10]ETSIEN300417-4-1:"TransmissionandMultiplexing(TM);Genericrequirementsoftransportfunctionalityofequipment;Part4-1:SynchronousDigitalHierarchy(SDH)pathlayerfunctions".[11]ETSIEN300417-6-1:"TransmissionandMultiplexing(TM);Genericrequirementsoftransportfunctionalityofequipment;Part6-1:Synchronizationlayerfunctions".[12]ITU-TRecommendationG.825(1993):"Thecontrolofjitterandwanderwithindigitalnetworkswhicharebasedonthesynchronousdigitalhierarchy(SDH)".[13]ITU-TRecommendationG.704(1995):"Synchronousframestructuresusedat1544,6312,2048,8488and44736kbit/shierarchicallevels".[14]IEC60364-5-548(1996):"Electricalinstallationsofbuildings-Part5:Selectionanderectionofelectricalequipment-Section548:Earthingarrangementsandequipotentialbondingforinformationtechnologyinstallations".SIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)7[15]ETSIEG201212:"Electricalsafety;Classificationofinterfacesforequipmenttobeconnectedtotelecommunicationnetworks".3Definitions,symbolsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply.process:generictermforanactionoracollectionofactionsfunction:"process"definedfordigitaltransmissionhierarchies(e.g.PlesiochronousDigitalHierarchy(PDH),SynchronousDigitalHierarchy(SDH)),whichactsonacollectionofinputinformationtoproduceacollectionofoutputinformation.Afunctionisdistinguishedbythewayinwhichcharacteristicsofthecollection,orofmembersofthecollectionofoutputinformationdifferfromcharacteristicsofmembersofthecollectionofinputinformationatomicfunction:"function"whichifdividedintosimpler"functions"wouldceasetobeuniquelydefinedfordigitaltransmissionhierarchies.Itisthereforeindivisiblefromanetworkpointofview.Thefollowingatomicfunctionsaredefinedineachnetworklayer:− bi-directionalTrailTerminationfunction(._TT),TrailTerminationSourcefunction(._TT_So),TrailTerminationSinkfunction(._TT_Sk)andConnectionfunction(._C);− betweenclientandserverlayernetworksthreeadaptationfunctionsaredefined:AdaptationSinkfunction._A_Sk,AdaptationSourcefunction._A_So,andthebi-directionalAdaptationfunction._A.adaptationfunction:"atomicfunction"whichpassesacollectionofinformationbetweenlayernetworksbychangingthewayinwhichthecollectionofinformationisrepresentedtrailterminationfunction:"atomicfunction"withina"layer"whichgenerates,adds,andmonitorsinformationconcerningtheintegrityandsupervisionof"adaptedinformation"connectionfunction:"atomicfunction"withinalayerwhich,ifconnectivityexists,relaysacollectionofitemsofinformationbetweengroupsofatomicfunctions.Itdoesnotmodifythemembersofthiscollectionofitemsofinformationalthoughitmayterminateanyswitchingprotocolinformationandactuponit.Anyconnectivityrestrictionsbetweeninputsandoutputsshallbestatedlayer:conceptusedtoallowthetransportnetworkfunctionalitytobedescribedhierarchicallyassuccessivelevels;eachlayerbeingsolelyconcernedwiththegenerationandtransferofits"characteristicinformation"client/serverlayer:anytwoadjacentnetworklayersareassociatedinaclient/serverrelationship.Eachtransportnetworklayerprovidestransporttothelayeraboveandusestransportfromthelayersbelow.Thelayerprovidingtransportistermeda"server",thelayerusingtransportistermed"client"RemoteDefectIndication(RDI):signalwhichconveysthedefectstatusofthecharacteristicinformationreceivedbytheTrailTerminationsinkfunctionbacktothenetworkelementwhichcontainsthecharacteristicinformationoriginatingtrailterminationsourcefunction.ExamplesofRDIsignalsaretheFarEndReceiveFailure(FERF)bit(s)inSDHsignals,theA-bitinITU-TRecommendationG.704[13]structured2048kbit/ssignalsandthealarmindicationbitinotherPDHmultiplexsignalsRemoteErrorIndication(REI):signalwhichconveyseithertheexactortruncatednumberoferrordetectioncodeviolationswithinthecharacteristicinformation(asdetectedbythetrailterminationsinkfunction)backtothenetworkelementwhichcontainsthecharacteristicinformationoriginatingtrailterminationsourcefunction.ExamplesofREIsignalsaretheFarEndBlockError(FEBE)bit(s)inSDHsignalsandtheE-bitinITU-TRecommendationG.704[13]structured2048kbit/ssignalsall-ONEs:entirecapacityoftheadaptedorcharacteristicinformationissettologic"1"SIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)8AU-4-AIS:STM-NsignalinwhichtheentirecapacityofanAdministrativeUnit4(AU-4)issettologic"1"TU-m-AIS:STM-NsignalinwhichtheentirecapacityofaTU-missettologic"1"CharacteristicInformation(CI):signalofspecificrateandformatwhichistransferredwithinandbetween"sub-networks",andpresentedtoan"adaptation"functionfor"transport"bytheserverlayernetworkRemoteInformation(RI):informationflowfromsinkdirectiontosourcedirectionofthesameatomicfunctioninunidirectionalrepresentation,containinginformationtobetransportedtotheremoteend,suchasRDIandREIAccessPoint(AP):"referencepoint"wheretheoutputofan"adaptation"sourcefunctionisboundtotheinputofa"TrailTermination(TT)source",orwheretheoutputofa"trailterminationsink"isboundtotheinputofan"adaptation"sinkfunction.The"accesspoint"ischaracterizedbytheadaptedclientlayer"characteristicinformation"whichpassesacrossit.Abi-directional"accesspoint"isformedbyanassociatedcontra-directionalpairConnectionPoint(CP):"referencepoint"wheretheoutputofa"trailterminationsource"ora"connection"isboundtotheinputofanother"connection",orwheretheoutputofa"connection"isboundtotheinputofa"trailterminationsink".The"connectionpoint"ischaracterizedbytheinformation,whichpassesacrossit.Abi-directional"connectionpoint"isformedbytheassociationofacontra-directionalpairNOTE1:IntheinformationmodeltheconnectionpointiscalledConnectionTerminationPoint(CTP).TerminationConnectionPoint(TCP):specialcaseofa"connectionpoint"wherea"trailtermination"functionisboundtoan"adaptation"functionora"connection"functionNOTE2:IntheinformationmodeltheterminationconnectionpointiscalledTrailTerminationPoint(TTP).defect:densityofanomalieshasreachedalevelwheretheabilitytoperformarequiredfunctionhasbeeninterrupted.Defectsareusedasinputforperformancemanagement,thecontrolofconsequentactions,andthedeterminationoffaultcauseSIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)93.2SymbolsForthepurposesofthepresentdocument,thefollowingsymbolsapply:Thediagrammaticconventionsandnomenclatureusedinthepresentdocumentforadaptation,terminationandconnectionfunctions(usedtodescribetheatomicfunctions)aretakenfromEN300417-1-1[7]andareshowninFigure1.SinkSinkSourceSourcebidirectionalbidirectionalbidirectionalunidirectionalAdaptationfunctionsfromServerlayerYtoClientlayerZY/ZY/ZY/ZYYYTrailTerminationfunctionsinlayerYConnectionfunctionsinlayerYYYY/ZYY/ZYY/ZYbidirectionalSourceSinkTrailTerminationfunctioninlayerYandAdaptationfunctiontolayerZSinkSourcebidirectionalCompoundAdaptationfunctionsfromServerlayerYtoClientlayerZY/ZY/ZY/ZNOTE:Iftheabovesymbolsareusedforgenericfigures,i.e.notforspecificlayers,thelayerreferencesYandZmaybeomitted.Alternatively,thereferencesmaybetothetypeoffunctionorlayer,e.g.supervision,protection.Figure1:SymbolsanddiagrammaticconventionsSIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)103.3AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:AAdaptationfunctionAIAdaptedInformationAISAlarmIndicationSignalAPAccessPointAUAdministrativeUnitAU-nAdministrativeUnit,levelnAUGAdministrativeUnitGroupCConnectionfunctionCICharacteristicInformationCPConnectionPointCTPConnectionTerminationPointESElectricalSectionES1STM-1ElectricalSectionFEBEFarEndBlockErrorFERFFarEndReceiveFailureIInformativeLCLayerClockLOFLossOfFrameLOMLossOfMultiframeLOPLossOfPointerLOSLossOfSignalMSMultiplexSectionMS1STM-1MultiplexSectionMS4STM-4MultiplexSectionNNormativeN/RNotRelevantNNINetworkNodeInterfaceNTNetworkTerminationNTPNetworkTerminationPointOSOpticalSectionOS1STM-1OpticalSectionOS4STM-4OpticalSectionPDHPlesiochronousDigitalHierarchyPLMPayLoadMismatchRDIRemoteDefectIndicationREIRemoteErrorIndicationRIRemoteInformationRSRegeneratorSectionRS1STM-1RegeneratorSectionRS4STM-4RegeneratorSectionRSOHRegeneratorSectionOverheadS12VC-12pathlayerS2VC-2pathlayerS3VC-3pathlayerS4VC-4pathlayerS4/SXVC-4pathlayertolowerorderVCpathlayerSDHSynchronousDigitalHierarchySkSinkSoSourceSSFServerSignalFailSTMSynchronousTransportModuleSTM-NSynchronousTransportModule,levelNTCPTerminationConnectionPointTETerminalEquipmentTITimingInformationTSFTrailSignalFailSIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)11TTTrailTerminationfunctionTTsTrailTerminationsupervisoryfunctionTTPTrailTerminationPointTUTributaryUnitTU-mTributaryUnit,levelmTUGTributaryUnitGroupTUG-mTributaryUnitGroup,levelmUNEQUnequippedVCVirtualContainerVC-nVirtualContainer,leveln4NetworkandterminalinterfacesforVirtualContainer(VC)leasedlineconnection4.1SectionlayerfunctionsforNetworkTermination(NT)andTerminalEquipment(TE)4.1.1STM-1sectionlayersfunctionsforNTandTETherelevantsectionlayerfunctionsofelectricalandopticalSTM-1interfacesforNTandTEareshowninFigure2andFigure3respectively.Thedetailsoftheatomicfunctionsshowninthesefiguresaregiveninclauses5and6ofthepresentdocument.Twotypesofopticalinterfacesarerelevantforleasedlineconnections.Thesearetheintraofficeinterface(I1)andtheshorthaulinterfaceat1300nm(S1.1).SIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)12RS1RS1/MS1RS1RS1/MS1RS1_CIRS1_CIRS1_AIRS1_AIES1ES1ES1/RS1ES1/RS1ES1_CRS1_CES1_CIES1_CIES1_AIES1_AIMS1MS1/S4MS1MS1/S4MS1_CIMS1_CIMS1/SDMS1/SDSD_CISD_CIS1[5-8]S1[5-8]RI_RDIRI_REIMS1_CSTM1_TIMS1-LCFigure2:SectionlayersofaSTM-1electricalinterfaceforNTandTESIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)13RS1RS1/MS1RS1RS1/MS1RS1_CIRS1_CIRS1_AIRS1_AIOS1OS1OS1/RS1OS1/RS1OS1_CRS1_COS1_CIOS1_CIOS1_AIOS1_AIMS1MS1/S4MS1MS1/S4MS1_CIMS1_CIMS1/SDMS1/SDSD_CISD_CIS1[5-8]S1[5-8]RI_RDIRI_REIMS1_CSTM1_TIMS1-LCFigure3:SectionlayersofanopticalSTM-1interfaceforNTandTESIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)144.1.2STM-4sectionlayersfunctionsforNTandTETherelevantsectionlayerfunctionsofopticalSTM-4interfacesforNTandTEareshowninFigure4.Thedetailsoftheatomicfunctionsshowninthesefiguresaregiveninclauses5and6ofthepresentdocument.Twotypesofopticalinterfacesarerelevantforleasedlineconnections.Thesearetheintraofficeinterface(I4)andtheshorthaulinterfaceat1300nm(S4.1).RS4RS4/MS4RS4RS4/MS4RS4_CIRS4_CIRS4_AIRS4_AIOS4OS4OS4/RS4OS4/RS4OS4_CRS4_COS4_CIOS4_CIOS4_AIOS4_AIMS4MS4S4_CIMS4_CIMS4_CIMS4/SDMS4/SDSD_CISD_CIS1[5-8]S1[5-8]RI_RDIRI_REIMS4_CMS4/S4STM4_TI14MS4-LCSD_CIS4_CIMS4/S414Figure4:SectionlayersofanSTM-4interfaceforNTandTESIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)154.2PathlayerfunctionsforNT4.2.1NetworkpathlayerfunctionsforVC-4leasedlineconnectionsTherearenorequirementsontheVC-4pathlayerfunctionsforVC-4leasedlineconnectionsunderthepresentdocument.NOTE:TheconnectioncharacteristicsoftheVC-4pathlayerarespecifiedinthecompanionstandardEN301164[5].4.2.2NetworkpathlayerfunctionsforlowerorderVCleasedlineconnectionsTherelevantVC-4pathlayerfunctionsofanNTareshowninFigure5.Theirdetailsarespecifiedinclause7ofthepresentdocument.ThetimetakenforappearanceofremoteindicationofdefectsandblockerrorsdependsontheprocessingtimeoftheequipmentterminatingtheVC-4andtheroundtripdelaybetweenthatequipmentandtheleasedlineinterface.ThereforethetimingcriteriaforsettingandclearingofVC-4-RDIandVC-4-REIasgivenintheequipmentspecificationEN300417-4-1[10]cannotbedirectlyappliedtothepresentdocument.TherearenorequirementsonthelowerorderVCpathlayerfunctionsforlowerorderVCleasedlineconnectionsunderthepresentdocument.NOTE:TheconnectioncharacteristicsofthelowerorderVCpathlayersarespecifiedinthecompanionstandardEN301164[5].S4RI_RDIRI_REIS4/SXS4_AIS2_CIS12_CIS3_CIS4/SXS2_CIS12_CIS3_CIS4_CS4_CIS4_CIS4_AIS4S4-LCSD_CIS4_TIFigure5:NTpathlayerforlowerorderVCconnectionsSIST EN 301 165 V1.1.2:2003
ETSIETSIEN301165V1.1.2(2000-06)164.3PathlayersfunctionsforTE4.3.1TerminalpathlayerfunctionsforVC-4leasedlineconnectionsTherelevantVC-4pathlayerfunctionsofaTEareshowninFigure6.Theirdetailsarespecifiedinclause7ofthepresentdocument.Therearenorequirementsontheadaptationfunctionswithtwoexceptions:− theyshallbetimedbytheS4-TIsignal;− VC-4payloadsignalsthemappingofwhichisnotdefinedinETS300147[6]shallbescrambledwhenemulationoftheSTM-Nscramblerpolynomial1+x6+x7inmorethan8consecutivebytesoftheVC-4payloadcouldoccur.Scramblingisnotnecessarywhentheclientlayertakeactionstoexcludetheemulationofthescramblerpolynomialinmorethan8consecutivebytesoftheVC-4payload.NOTE:Scramblingprovidessecurityag
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