SIST EN 300 299 V1.3.2:2003
(Main)Broadband Integrated Services Digital Network (B-ISDN); Cell based user network access for 155 520 kbit/s and 622 080 kbit/s; Physical layer interfaces for B-ISDN applications
General Information
- Abstract
To specify the requirements for a B-UNI applying to cell-based interfaces at 155 520 kbit/s and 622 080 kbit/s. This revision of edition 2 of ETS 300 299 (to be EN 300 299 V1.3.1) includes improvements and simplification of the scrambler mechanism and the OAM cell payload for these systems.
- 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
Overview
SIST EN 300 299 V1.3.2:2003 is the Slovenian adoption of the European Standard for Broadband Integrated Services Digital Network (B-ISDN), covering the requirements for cell-based user network access at high transmission rates of 155 520 kbit/s and 622 080 kbit/s. This standard specifies the key characteristics and requirements of physical layer interfaces for B-ISDN applications, enabling high-speed broadband data transmission between user equipment and networks.
This edition integrates improvements and simplifies mechanisms such as scrambling and Operations, Administration, and Maintenance (OAM) cell payloads, supporting more reliable and manageable broadband communications.
Key Topics
The main focus areas of SIST EN 300 299 V1.3.2:2003 include:
- Physical Layer Interface Specifications: Defines physical and electrical characteristics for two main interface points (SB and TB) supporting the high data rates of 155 520 kbit/s and 622 080 kbit/s.
- User-Network Interfaces (B-UNI): Details the standards for cell-based connections that are fundamental to broadband ISDN systems, ensuring interoperability and terminal interchangeability.
- Transmission Media: Recommends optical fibre as the preferred medium but allows use of existing cabling such as coaxial or twisted pairs, facilitating easier integration with legacy infrastructure.
- Layered Architecture: Describes subdivision into the Physical Medium Dependant (PMD) and Transmission Convergence (TC) sublayers, following international reference models.
- OAM Functions: Introduces requirements for operations and maintenance features, such as diagnostics, monitoring, and performance management over the user-network interface.
- Enhanced Safety and Compatibility: Incorporates provisions for improved electrical safety and electromagnetic compatibility, aligning with accepted telecommunications standards.
Applications
SIST EN 300 299 V1.3.2:2003 supports a range of practical broadband applications, such as:
- Broadband Internet Access: Enables ISPs and telecommunications providers to deliver high-speed services to enterprise and residential customers using B-ISDN infrastructure.
- Enterprise Networking: Facilitates high-capacity digital communication for corporate networks, data centers, and distributed offices with reliable, standardized physical interfaces.
- Video Conferencing and Multimedia: Provides the bandwidth necessary for real-time video, voice, and multimedia services over integrated digital networks.
- Public and Private Telecommunication Networks: Ensures secure, robust physical connections for both new and upgraded networks, allowing coexistence with varied transmission media.
- Legacy System Migration: Supports gradual migration from older cabling infrastructures by allowing both optical and electrical media for user-network connections.
By adhering to this standard, network operators and equipment manufacturers can ensure compatibility, scalability, and consistent quality of service for high-speed B-ISDN deployments.
Related Standards
Implementation and compliance with SIST EN 300 299 V1.3.2:2003 rely on alignment with several international standards. Key related documents include:
- ITU-T Recommendation I.413: B-ISDN user-network interface specification
- ITU-T Recommendations I.432.1 and I.432.2: Physical layer specifications for B-ISDN at 155 520 kbit/s and 622 080 kbit/s rates
- ETSI ETS 300 166: Physical and electrical characteristics for digital interfaces
- ETSI ETS 300 232: Optical interfaces for digital hierarchy equipment
- ITU-T Recommendation I.361: ATM layer specification
- IEC 60825-1 and CENELEC EN 60950: Safety requirements for optical and electronic equipment
In summary: SIST EN 300 299 V1.3.2:2003 is essential for ensuring robust, compatible, and high-performance broadband connections using B-ISDN, benefitting service providers, equipment vendors, and end-users in high-speed digital network deployment.
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Frequently Asked Questions
SIST EN 300 299 V1.3.2:2003 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Broadband Integrated Services Digital Network (B-ISDN); Cell based user network access for 155 520 kbit/s and 622 080 kbit/s; Physical layer interfaces for B-ISDN applications". This standard covers: To specify the requirements for a B-UNI applying to cell-based interfaces at 155 520 kbit/s and 622 080 kbit/s. This revision of edition 2 of ETS 300 299 (to be EN 300 299 V1.3.1) includes improvements and simplification of the scrambler mechanism and the OAM cell payload for these systems.
To specify the requirements for a B-UNI applying to cell-based interfaces at 155 520 kbit/s and 622 080 kbit/s. This revision of edition 2 of ETS 300 299 (to be EN 300 299 V1.3.1) includes improvements and simplification of the scrambler mechanism and the OAM cell payload for these systems.
SIST EN 300 299 V1.3.2:2003 is classified under the following ICS (International Classification for Standards) categories: 33.080 - Integrated Services Digital Network (ISDN). The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 299 V1.3.2:2003 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.Broadband Integrated Services Digital Network (B-ISDN); Cell based user network access for 155 520 kbit/s and 622 080 kbit/s; Physical layer interfaces for B-ISDN applications33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 299 Version 1.3.2SIST EN 300 299 V1.3.2:2003en01-december-2003SIST EN 300 299 V1.3.2:2003SLOVENSKI
STANDARD
ETSIEN300299V1.3.2(2000-05)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN);Cellbasedusernetworkaccessfor155520kbit/sand622080kbit/s;PhysicallayerinterfacesforB-ISDNapplicationsSIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)2ReferenceREN/TM-06017-4Keywordsaccess,ATM,B-ISDN,interface,ISDN,transmission,UNIETSI650RoutedesLuciolesF-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 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)3ContentsIntellectualPropertyRights.6Foreword.61Scope.72References.73Definitionsandabbreviations.83.1Definitions.83.2Abbreviations.84Referenceconfigurationattheuser-networkinterface.94.1Functionalgroupsandreferencepoints.94.2Examplesofphysicalrealizations.104.3BasiccharacteristicsoftheinterfacesatTBandSBreferencepoints.144.3.1Characteristicsoftheinterfacesat155520kbit/s.144.3.1.1InterfaceattheTBreferencepoint.144.3.1.2InterfaceattheSBreferencepoint.144.3.1.3RelationshipbetweeninterfacesatSBandTB.144.3.2Characteristicsoftheinterfacesat622080kbit/s.144.3.2.1InterfaceatTBreferencepoint.144.4RelationshipbetweenISDNinterfaces.144.5Functionalgroupscharacteristics.144.5.1Networktermination1forB-ISDN.154.5.2Networktermination2forB-ISDN(B-NT2).154.5.3TerminalequipmentforB-ISDN(B-TE).154.5.3.1Terminalequipmenttype1forB-ISDN(B-TE1).164.5.3.2Terminalequipmenttype2forB-ISDN(B-TE2).164.5.4TerminaladapterforB-ISDN(B-TA).165Usernetworkinterfacespecifications.165.1Interfacelocationwithrespecttoreferenceconfiguration.165.2Interfacelocationwithrespecttothewiringconfiguration.166Serviceandlayeringaspectsofthephysicallayer.176.1ServicesprovidedtotheATM-layer.176.2ServiceprimitivesexchangedwiththeATMlayer.176.3Sublayeringofthephysicallayer.177PhysicalmediumcharacteristicsoftheUNIat155520kbit/s.187.1CharacteristicsoftheinterfaceattheTBandSBreferencepoints.187.1.1Bitrateandinterfacesymmetry.187.1.2Physicalcharacteristics.187.1.2.1Electricalinterface.187.1.2.1.1Interfacerange.187.1.2.1.2Transmissionmedium.187.1.2.1.3ElectricalparametersatinterfacepointsIaandIb.187.1.2.1.4Electricalconnectors.187.1.2.1.5Linecoding.197.1.2.1.6ElectromagneticCompatibility/Interference(EMC/EMI)requirements.197.1.2.2Opticalinterface.207.1.2.2.1Attenuationrange.207.1.2.2.2Transmissionmedium.207.1.2.2.3Opticalparameters.207.1.2.2.4Opticalconnectors.217.1.2.2.5Safetyrequirements.217.1.2.3Jitterandwander.21SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)48PhysicalmediumcharacteristicsoftheUNIat622080kbit/s.218.1CharacteristicsoftheinterfaceattheTBandSBreferencepoints.218.1.1Bitrateandinterfacesymmetry.218.1.2Physicalcharacteristics.228.1.2.1Attenuationrange.228.1.2.2Transmissionmedium.228.1.2.3Opticalparameters.228.1.2.3.1Linecoding.228.1.2.3.2Operatingwavelength.228.1.2.3.3Inputandoutputportcharacteristics.228.1.2.4Opticalconnectors.228.1.2.5Safetyrequirements.228.1.2.6Jitterandwander.239Powerfeeding.239.1Provisionofpower.239.2PoweravailableatB-NT1.239.3Feedingvoltage.239.4SafetyandProtectionrequirements.239.4.1Safety.239.4.2Protection.2410Functionsprovidedbythetransmissionconvergencesublayer.2410.1Transfercapability.2410.1.1Interfaceat155520kbit/s.2410.1.2Interfaceat622080kbit/s.2410.2Physicallayeraspects.2410.2.1Timing.2410.2.2Interfacestructurefor155520kbit/sand622080kbit/s.2410.3HeaderErrorControl(HEC).2510.3.1HECfunctions.2510.3.2HECsequencegeneration.2710.4Idlecells.2710.5Celldelineationandscrambling.2710.5.1Celldelineationandscramblingobjectives.2710.5.1.1Celldelineationalgorithm.2810.5.2Celldelineationperformance.2910.5.3Scrambleroperation.2910.5.3.1DistributedSampleScrambler(31storder)operation.2910.5.3.2Transmitteroperation.2910.5.3.3Receiveroperation.3010.5.3.4Statetransitiondiagramandmechanism.3111UNIrelatedOAMfunctions.3211.1Transmissionoverheadallocation.3211.2OAMcellidentification.3211.3AllocationofOAMfunctionsininformationfield.3311.4Maintenancesignals.3511.5Transmissionperformancemonitoring.3511.6Controlcommunication.3512Operationalfunctions.3512.1Descriptionofsignalsattheinterface.3512.1.1SignalsdefinedinITU-TRecommendationI.610.3512.1.2Celldelineationsignals.3612.2Definitionsofstatetablesatnetworkandusersides.3612.2.1Layer1statesontheusersideoftheinterface.3612.2.2Layer1statesatthenetworksideoftheinterface.3712.2.3Definitionofprimitives.3912.2.4Statetables.40SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)5AnnexA(informative):Impactofrandombiterrorsoncelldelineationperformance.43AnnexB(informative):DistributedSampleScramblerimplementationexample.45History.47SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)6IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.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).ThepresentdocumentdefinesthecellbasedusernetworkaccessphysicallayerinterfacestobeappliedtotheTB,SBreferencepointsofthereferenceconfigurationsoftheBroadbandIntegratedServicesDigitalNetwork(B-ISDN)User-NetworkInterface(UNI)at155520kbit/sand622080kbit/s,forB-ISDNapplications.ItaddressesseparatelythePhysicalMediaDependant(PMD)andTransmissionConvergence(TC)sublayersusedattheseinterfacesandaddressesalsotheimplementationofUNIrelatedphysicallayerOperationsAndMaintenance(OAM)functions.ThepresentdocumenttakesintoaccounttherecommendationsgiveninITU-TRecommendationsI.413[7],I.432.1[8]andI.432.2[9].Thepresentdocumentincludesaneditorialimprovementofthesafetyrelatedprovisions.NationaltranspositiondatesDateoflatestannouncementofthisEN(doa):31August2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):28February2001DateofwithdrawalofanyconflictingNationalStandard(dow):28February2001SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)71ScopeThepresentdocumentdefinesthephysicallayerinterfacetobeappliedtotheSBandTBreferencepointsofthereferenceconfigurationsoftheBroadbandIntegratedServicesDigitalNetwork(B-ISDN)cellbasedUser-NetworkInterface(UNI)at155520kbit/sand622080kbit/s.ItaddressesseparatelythePhysicalMediaDependant(PMD)andTransmissionConvergence(TC)sublayersusedattheseinterfaces,andaddressesalsotheimplementationofUNIrelatedphysicallayerOAMfunctions.TheselectionofthephysicalmediumfortheinterfacesattheSBandTBreferencepointsshouldtakeintoaccountthatopticalfibreisagreedasthepreferredmediumtobeusedtocablecustomerequipment.However,inordertoallowtheuseofexistingcablingofcustomerequipment,othertransmissionmedia(e.g.twistedpairsandcoaxialcables)shouldnotbeprecluded.Also,implementationsshouldallowterminalinterchangeability.Thepresentdocumentreflectsinitsstructureandcontentthedesiretotakecareofsuchearlyconfigurationsandintroducesadegreeoffreedomwhenchoosingaphysicalmediumatthephysicallayer.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.[1]ITU-TRecommendationG.652(1997):"Characteristicsofasingle-modeopticalfibrecable".[2]ETSIETS300166(1993):"TransmissionandMultiplexing(TM);Physicalandelectricalcharacteristicsofhierarchicaldigitalinterfacesforequipmentusingthe2048kbit/s-basedplesiochronousorsynchronousdigitalhierarchies".[3]ETSIETS300232(1993):"TransmissionandMultiplexing(TM);OpticalinterfacesforequipmentsandsystemsrelatingtotheSynchronousDigitalHierarchy[ITU-TRecommendationG.957(1993),modified]".[4]ITU-TRecommendationI.113(1997):"VocabularyoftermsforbroadbandaspectsofISDN".[5]ITU-TRecommendationI.321(1991):"B-ISDNprotocolreferencemodelanditsapplication".[6]ITU-TRecommendationI.361(1995):"B-ISDNATMlayerspecification".[7]ITU-TRecommendationI.413(1993):"B-ISDNuser-networkinterface".[8]ITU-TRecommendationI.432.1(1999):"B-ISDNuser-networkinterface-Physicallayerspecification:Generalcharacteristics".[9]ITU-TRecommendationI.432.2(1999):"B-ISDNuser-networkinterface-Physicallayerspecification:155520kbit/sand622080kbit/soperation".[10]ITU-TRecommendationI.610(1999):"B-ISDNoperationandmaintenanceprinciplesandfunctions".[11]ITU-TRecommendationX.200(1994):"Informationtechnology-OpenSystemsInterconnection-Basicreferencemodel:Thebasicmodel".SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)8[12]ETSIETS300404(1997):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN);B-ISDNOperationAndMaintenance(OAM)principlesandfunctions".[13]IEC60825-1(1993):"Safetyoflaserproducts:Part1:Equipmentclassification,requirementsanduser'sguide".[14]CENELECEN60950(1992):"Safetyofinformationtechnologyequipment".[15]ITU-TRecommendationG.825:"Thecontrolofjitterandwanderwithindigitalnetworkswhicharebasedonthesynchronousdigitalhierarchy(SDH)".[16]ITU-TRecommendationG.958(1994):"Digitallinesystemsbasedonthesynchronousdigitalhierarchyforuseonopticalfibrecables".[17]ITU-TRecommendationG.826(1999):"Errorperformanceparametersandobjectivesforinternational,constantbitratedigitalpathsatorabovetheprimaryrate".[18]ETSIEG201212(V1.2):"ElectricalSafety;Classificationofinterfacesforequipmenttobeconnectedtotelecommunicationnetworks".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thedefinitionsgiveninITU-TRecommendationI.113[4]apply,inparticularforthedefinitionsofidlecell,validcellandinvalidcell.Inaddition,thefollowingdefinitionapplies:tobedefined:theseitemsorvaluesarenotyetspecified.3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:AIActivationIndicationAISAlarmIndicationSignalATMAsynchronousTransferModeBERBitErrorRateB-ISDNBroadbandIntegratedServicesDigitalNetworkB-NTB-ISDNNetworkTerminationB-TAB-ISDNTerminalAdaptorB-TEB-ISDNTerminalEquipmentBIPBitInterleavedParityB-UNIBroadbandUNICATVCAbleTeleVisionCECCellErrorControlCICorrectionIndicationCLPCellLossPriorityCMICodedMarkInversionCRCCyclicRedundancyCheckDIDeactivateIndicationDSSDistributedSampleScramblerEDCErrorDetectionCodeEIErrorIndicationEMCElectromagneticCompatibilityEMIElectroMagneticInterferenceHECHeaderErrorControlISDNIntegratedServicesDigitalNetworkLANLocalAreaNetworkSIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)9LCDLossofCellDelineationLOMLossOfMaintenancecellLOSLossOfSignalLSBLeastSignificantBitMAMediumAdaptorMBSMonitoringBlockSizeMPHManagementPhysicalHeaderMSBMostSignificantBitNRZNonReturntoZeroOAMOperationAndMaintenanceOCDOutofCellDelineationOSIOpenSystemsInterconnectionP-AISPathAlarmIndicationSignalPh-SAPPhysicallayerServiceAccessPointPHPhysicalHeaderPMPhysicalMediumppmpartspermillionPRBSPseudo-RandomBinarySequencePSNPhysicallayerSequenceNumberRDIRemoteDefectIndicationREBRemoteErroredBlocksSDHSynchronousDigitalHierarchySTISurfaceTransferImpedanceTCTransmissionConvergenceTFVTerminalFailureVoltageUNIUser-NetworkInterfaceVCIVirtualChannelIdentifierVPIVirtualPathIdentifier4Referenceconfigurationattheuser-networkinterface4.1FunctionalgroupsandreferencepointsThereferenceconfigurationsdefinedforIntegratedServicesDigitalNetwork(ISDN)basicaccessandprimaryaccessareconsideredgeneralenoughtobeapplicabletoallaspectsoftheB-ISDNaccesses.Figure1showstheB-ISDNreferenceconfigurations,whichcontainthefollowing:-functionalgroups:B-NT1,B-NT2,B-TE1,TE2,B-TE2,andB-TA;-referencepoints:TB,SBandR.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)10B-TE1B-NT1B-TAReferencepointSBRSBFunctionalgroupB-TABroadbandTerminalAdaptorB-TEBroadbandTerminalEquipmentB-NTBroadbandNetworkTerminationB-NT2TBTE2orB-TE2Figure1:B-ISDNreferenceconfigurationsInordertoclearlyillustratethebroadbandaspects,thenotationsforreferencepointsandforfunctionalgroupswithbroadbandcapabilitiesareappendedwiththeletterB(e.g.B-NT1,TB).ThebroadbandfunctionalgroupsareequivalenttothefunctionalgroupsdefinedinISDN.InterfacesattheRreferencepointmayormaynothavebroadbandcapabilities.InterfacesatreferencepointsSBandTBwillbestandardized.TheseinterfaceswillsupportallISDNservices.4.2ExamplesofphysicalrealizationsFigure2givesexamplesofphysicalconfigurationsillustratingcombinationsofphysicalinterfacesatvariousreferencepoints.TheexamplescoverconfigurationsthatcouldbesupportedbystandardizedinterfacesatreferencepointsSBandTB.Otherconfigurationsmayalsoexist.Forexample,physicalconfigurationsofB-NT2maybedistributed,orusesharedmedium,tosupportLocalAreaNetwork(LAN)emulationandotherapplications.Figure3illustratespossiblephysicalconfigurations,butdoesnotprecludealternativeconfigurations.WhetherasingleinterfaceattheSBreferencepointcancoverdifferentconfigurations,asillustratedinfigure3,isforfurtherstudy.Figure2issubdividedintoseparateitemsasfollows:-figures2a)and2b)showseparateinterfacesattheSBandTBreferencepoints;-figures2c)and2d)showaninterfaceatSBbutnotatTB;-figures2e)and2f)showaninterfaceatTBbutnotatSB;-figures2g)and2h)showseparateinterfacesatS,SBandTB;-figures2i)and2j)showinterfacesatSBandTBwhicharecoincident.Additionally,figures2b),2d),2f),2h)and2j)showaninterfaceatreferencepointR.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)11B-NT2TSB-NT1BBa)B-TE1B-NT2TSB-NT1BBB-TARb)TE2orB-TE2ConfigurationswhereB-ISDNphysicalinterfacesoccuratreferencepointsSBandTBSBc)B-NT1B-NT2+B-TE1SBB-TARd)B-NT1B-NT2+TE2orB-TE2NoteConfigurationswhereB-ISDNphysicalinterfacesoccuratreferencepointSBonlyB-NT2B-NT1+e)B-TETBTB-NT1BB-TARB-NT2+f)TE2orB-TE2ConfigurationswhereB-ISDNphysicalinterfacesoccuratreferencepointTBonlyB-NT2TSB-NT1BSBRh)TATE2B-TE1B-NT2TSB-NT1BTE1g)B-TE1SBConfigurationswhereB-ISDNandISDNphysicalinterfacesoccuratreferencepointsS,SBandTBB-NT1RB-TAj)TE2orB-TE2SandTcoincidentBBB-NT1B-TE1i)SandTcoincidentBBConfigurationswhereasingleB-ISDNphysicalinterfaceoccursatalocationwherebothreferencepointsSBandTBcoincideEquipmentimplementingfunctionalgroupsPhysicalinterfaceatthedesignatedreferencepointNOTE:TheneededforanaccesstoaTBreferencepointbetweenB-NT1andB-NT2isforfurtherstudy.Figure2:ExamplesofphysicalconfigurationsforbroadbanduserapplicationsSIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)12a)centralizedB-NT2configuration:B-TE1B-TE1B-TE1B-NT2B-NT1TBSBSBSBb)distributedB-NT2configurations:b1)genericconfigurationWWMAMAWMA(note1)SBSBRTE2orB-TE2B-TAB-NT1B-NT2MAB-TARTE2orB-TE2B-TE1TB(note2)b2)physicalconfigurations(note1)MAB-TE1B-NT1WWTBTBMAMAB-TE1SBSBB-NT1B-TE1SBWWWWB-TE1B-TE1MAMAMAMASBSB(note1)Figure3(sheet1/2):ExamplesofphysicalconfigurationsformultipointapplicationsSIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)13c)multi-accessB-TEconfigurations:c1)genericconfigurations(note7)TBB-NT1B-NT2SBB-TE*B-TE*B-TE*SSBSSB(note3)c2)physicalconfigurations(note5)(note4)(note6)B-NT2B-NT1SSBSSBSBTBB-TE*B-TE*B-TE*SBB-NT2B-NT1SSBSSBSBTBB-TE*B-TE*B-TE*(note5)(note4)SSBSSBSSBSSBSSBSSBSBSBSBB-NT2B-NT1TBB-TE*B-TE*B-TE*B-TE*B-TE*B-TE*B-TE*B-TE*B-TE*NOTE1:MediumAdaptor(MA):accommodatesthespecifictopologyofthedistributedB-NT2.TheinterfaceatWmayincludetopologydependantelementsandmaybeanon-standardizedinterface.NOTE2:TherewillbeaphysicallinkbetweenthesetwoMAsinthecaseofringconfigurations.NOTE3:TherewillbeaphysicallinkbetweenB-TE*andB-NT2inthecaseofringconfigurations.NOTE4:TheB-TE*includessharedmediumaccessfunctions.NOTE5:ThemeasurablephysicalcharacteristicsoftheSSBinterfaceareidenticaltothoseoftheSBinterface.Thefunctionalcharacteristicsoftheinterface,however,maybeasupersetofthoseattheSBinterface.NOTE6:TheB-NT2maybenullinthecaseofcommonalitybetweenSBandTB.NOTE7:Additionalterminationfunctions(e.g.forloopbackinbusconfiguration)andOAMfunctionsmaybenecessaryformulti-accessB-TEconfigurations.Requirementsandimplementationsofthesefunctionsareforfurtherstudy.Figure3(sheet2/2):ExamplesofphysicalconfigurationsformultipointapplicationsSIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)144.3BasiccharacteristicsoftheinterfacesatTBandSBreferencepoints4.3.1Characteristicsoftheinterfacesat155520kbit/s4.3.1.1InterfaceattheTBreferencepointThereisonlyoneinterfaceperB-NT1attheTBreferencepoint.Theoperationofthephysicalmediumispoint-to-pointinthesensethatthereisonlyonesink(receiver)infrontofonesource(transmitter).Point-to-multipointconfigurationsatTBatAsynchronousTransferMode(ATM)andhigherlayersareforfurtherstudy.4.3.1.2InterfaceattheSBreferencepointOneormoreSBinterfacesperB-NT2arepresent.TheinterfaceattheSBreferencepointispoint-to-pointatthephysicallayerinthesensethatthereisonlyonesink(receiver)infrontofonesource(transmitter)andmaybepointtomultipointattheotherlayers.4.3.1.3RelationshipbetweeninterfacesatSBandTBConfigurationsdescribedinfigures2i)and2j)requirethattheinterfacespecificationsatTBandSBshouldhaveahighdegreeofcommonality,inordertoensurethatasimplebroadbandterminalmaybeconnecteddirectlytotheTBinterface.Thefeasibilityofachievingtheneededcommonalityisforfurtherstudy.4.3.2Characteristicsoftheinterfacesat622080kbit/s4.3.2.1InterfaceatTBreferencepointThereisonlyoneinterfaceperB-NT1attheTBreferencepoint.Theoperationofthephysicalmediumispoint-to-pointinthesensethatthereisonlyonesink(receiver)infrontofonesource(transmitter).Point-to-multipointconfigurationsatTBatATMandhigherlayersareforfurtherstudy.4.4RelationshipbetweenISDNinterfacesFigures2g)and2h)showconfigurationswhereB-ISDNandISDNinterfacesmayoccuratSBandSrespectively.Inthiscase,B-NT2functionalitieshavetoensuretheinterfacecapabilitiesforbothSandSB.OtherconfigurationsforsupportingterminalsattheinterfaceattheSreferencepointmayexist.4.5FunctionalgroupscharacteristicsListsoffunctionsforeachfunctionalgrouparegivenbelow.Eachparticularfunctionisnotnecessarilyrestrictedtoasinglefunctionalgroup.Forexample,"interfacetermination"functionsareincludedinthefunctionlistsofB-NT1,B-NT2andB-TE.ThefunctionlistsforB-NT1,B-NT2,B-TEandB-TAarenotexhaustive.Notallspecificfunctionsinafunctionalgroupneedtobepresentinallimplementations.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)154.5.1Networktermination1forB-ISDNThisfunctionalgroupincludesfunctionsbroadlyequivalenttolayer1oftheOpenSystemInterconnection(OSI)referencemodel.ExamplesofB-NT1functionsare:-linetransmissiontermination;-transmissioninterfacehandling;-celldelineation;-OAMfunctions.4.5.2Networktermination2forB-ISDN(B-NT2)Thisfunctionalgroupincludesfunctionsbroadlyequivalenttolayer1andhigherlayersoftheITU-TRecommendationX.200[11]referencemodel.B-NT2canbenullinthecaseofcommonalitybetweenTBandSB.ExamplesofB-NT2functionsare:-adaptationfunctionsfordifferentmediaandtopologies(MAfunctions);-functionsofadistributedB-NT2;-celldelineation;-concentration;-buffering;-multiplexing/demultiplexing;-resourceallocation;-usageparametercontrol;-adaptationlayerfunctionsforsignalling(forinternaltraffic);-interfacehandling(fortheTBandSBinterfaces);-OAMfunctions;-signallingprotocolhandling;-switchingofinternalconnections.B-NT2implementationsmaybeconcentratedordistributed.Inaspecificaccessarrangement,theB-NT2mayconsistonlyofphysicalconnections.Whenpresent,implementationsoftheB-NT2arelocallypowered.4.5.3TerminalequipmentforB-ISDN(B-TE)Thisfunctionalgroupincludesfunctionsbroadlybelongingtolayer1andhigherlayersoftheITU-TRecommendationX.200[11]referencemodel.ExamplesofB-TEfunctionsare:-user/useranduser/machinedialogueandprotocol;-interfaceterminationandotherlayer1functions;-protocolhandlingforsignalling;-connectionhandlingtootherequipments;-OAMfunctions.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)16ThepossibilityofpoweringtheB-TEviatheSBinterfaceisforfurtherstudy.4.5.3.1Terminalequipmenttype1forB-ISDN(B-TE1)ThisfunctionalgroupincludesfunctionsbelongingtotheB-TEfunctionalgroupwithaninterfacethatcomplieswiththeB-ISDNSBand/orTBinterfaceENs.4.5.3.2Terminalequipmenttype2forB-ISDN(B-TE2)ThisfunctionalgroupincludesfunctionsbelongingtothefunctionalgroupB-TEbutwithabroadbandinterfacethatcomplieswithinterfacerecommendationsotherthantheB-ISDNinterfacerecommendationsorinterfacesnotincludedinITU-TRecommendations.4.5.4TerminaladapterforB-ISDN(B-TA)Thisfunctionalgroupincludesfunctionsbroadlybelongingtolayer1andhigherlayersoftheITU-TRecommendationX.200[11]referencemodelthatallowaTE2oraB-TE2terminaltobeservedbyaB-ISDNuser-networkinterface.5Usernetworkinterfacespecifications5.1InterfacelocationwithrespecttoreferenceconfigurationAninterfacepointIaisadjacenttotheB-TEortheB-NT2ontheirnetworkside;interfacepointIbisadjacenttotheB-NT2andtotheB-NT1ontheiruserside(seefigure4).B-TEB-NT2B-NT1BSTBIabIIabIFigure4:ReferenceconfigurationatreferencepointsSBandTB5.2InterfacelocationwithrespecttothewiringconfigurationTheinterfacepointsarelocatedbetweenthesocketandtheplugoftheconnectorattachedtotheB-TE,B-NT2orB-NT1.Thelocationoftheinterfacepointisshowninfigure5.Inthepresentdocument,theterm"B-NT"isusedtoindicatenetworkterminatinglayer1aspectsofB-NT1andB-NT2functionalgroups,andtheterm"TE"isusedtoindicateterminalterminatinglayer1aspectsofB-TE1,B-TAandB-NT2functionalgroups,unlessotherwiseindicated.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)17connectingcordWiringatthecustomerpremisesB-TEB-NTIabI(note)NOTE:Thelengthoftheconnectingcordcanbezero.Figure5:Wiringconfiguration6Serviceandlayeringaspectsofthephysicallayer6.1ServicesprovidedtotheATM-layerThephysicallayerprovidesforthetransparenttransmissionofATM-PDUsbetweenPhysicallayerServiceAccessPoints(Ph-SAP).TheATM-PDUiscalledATMcell.TheATMcellisdefinedinITU-TRecommendationI.361[6].AsnoaddressingisimplementedinthephysicallayeronlyasinglePh-SAPcanexistattheboundarybetweenphysicallayerandATMlayer.TheinterarrivaltimebetweencellspassedtotheATMlayerisnotdefined(asynchronoustransmission).ThephysicallayerprovidestheATMlayerwithtiminginformation.6.2ServiceprimitivesexchangedwiththeATMlayerTheserviceprimitivesbetweenphysicallayerandATMlayeraredefinedinITU-TRecommendationI.361[6],subclause3.2.6.3SublayeringofthephysicallayerThephysicallayerissubdividedintotwosublayers:-thePhysicalMedium(PM)sublayer;-theTransmissionConvergence(TC)sublayer.NoserviceaccesspointandserviceprimitivesaredefinedbetweenthePMandtheTCsublayers.ThefunctionsoftheindividualsublayeraredefinedinITU-TRecommendationI.321[5].SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)187PhysicalmediumcharacteristicsoftheUNIat155520kbit/s7.1CharacteristicsoftheinterfaceattheTBandSBreferencepoints7.1.1BitrateandinterfacesymmetryThebitrateoftheinterfaceis155520kbit/s.Theinterfaceissymmetric,i.e.ithasthesamebitrateinbothtransmissiondirections.Thenominalbitrateinfreerunningclockmodeshallbe155520kbit/swithatoleranceof±20ppm.7.1.2PhysicalcharacteristicsBothopticalandelectricalinterfacesarerecommended.Theimplementationselecteddependsonthedistancetobecoveredanduserrequirementsarisingfromthedetailsoftheinstallation.7.1.2.1Electricalinterface7.1.2.1.1InterfacerangeThemaximumrangeoftheinterfacedependsonthespecificattenuationofthetransmissionmediumused.Forexampleamaximumrangeofabout100mformicrocoax(4mmdiameter)and200mforCableTelevision(CATV)type(7mmdiameter)cablescanbeachieved.7.1.2.1.2TransmissionmediumTwocoaxialcables,oneforeachdirection,shallbeused.Thewiringconfigurationshallbepoint-to-point.Theimpedanceshallbe75Ωwithatoleranceof±5%inthefrequencyrange50MHzto200MHz.TheattenuationoftheelectricalpathbetweentheinterfacepointsIaandIbshallbeassumedtofollowanapproximateflawandtohaveamaximuminsertionlossof20dBatafrequencyof155520kHz.7.1.2.1.3ElectricalparametersatinterfacepointsIaandIbThedigitalsignalpresentedattheoutputportandtheportimpedanceshallconformtoETSIETS300166[2]fortheinterfaceat155520kbit/s.ThedigitalsignalpresentedattheinputportandtheportimpedanceshallconformtoETSIETS300166[2]fortheinterfaceat155520kbit/s,modifiedbythecharacteristicsoftheinterconnectingcoaxialpair.7.1.2.1.4ElectricalconnectorsThepresentationofinterfacepointIbatB-NT1orB-NT2shallbeviaasocket.ThepresentationofinterfacepointIaatB-TEorB-NT2shallbeusingeither:a)asocket,i.e.theconnectionshallbemadetotheequipmenttowardthenetworkwithacablewithplugsonbothends;orb)anintegralconnectingcordwithplugonthefreeend.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)197.1.2.1.5LinecodingThelinecodingshallbeCodedMarkInversion(CMI),seeETSIETS300166[2].7.1.2.1.6ElectromagneticCompatibility/Interference(EMC/EMI)requirementsShieldingpropertiesofconnectorsandcablesaredefinedbythespecificationoftherespectivevaluesfortheSurfaceTransferImpedance(STI).ThetemplateindicatingthemaximumSTIvaluesforCATVcablesisgiveninfigure6.Forconnectors,thesetemplatevaluesshallbemultipliedby10(20dB).TheimmunityoftheinterfaceagainstinducednoiseonthetransmissionmediumshouldbespecifiedbymeansofaTerminalFailureVoltage(TFV),whichisoverlaidtothedigitalsignalattheoutputport.Figure7showsapossiblemeasurementconfiguration.ThereceivershouldtolerateasinusoidalTFVwiththevaluesdefinedinfigure8andtable1withoutdegradationoftheBitErrorRatio(BER)performance.BlogSTIAf012logfrequencyff10frequency(MHz):STIvalue(ΩΩΩΩ/m):f0=0,1A=0,01f1=100f2=1000B=1NOTE:Theapplicabilityofthesevaluesformicrocoaxcablesisforfurtherstudy.Figure6:MaximumSTIvaluesasafunctionoffrequencyTransmitsignalgeneratorTransmissioncableReceiverundertestBERAnalyserTFVGenerator+Figure7:MeasurementconfigurationSIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)20TFVleveldBVF0frequency(MHz)1F2FA1A2Figure8:TerminalFailureVoltage(TFV)frequencyresponseTable1:TFVvaluesfrequency(MHz)TFVamplitude(dBV)(0dBV=1Vop)F0=1F1=200A1≥-17F2=400A2≥-117.1.2.2Opticalinterface7.1.2.2.1AttenuationrangeTheattenuationoftheopticalpathbetweenthespecificationpointsSandR,asdefinedinETSIETS300232[3],shallbeintherangeof0dBto7dB(seesubclause7.1.2.2.3.3).7.1.2.2.2TransmissionmediumThetransmissionmediumshallconsistoftwosinglemodefibresaccordingtoITU-TRecommendationG.652[1],oneforeachdirection.7.1.2.2.3Opticalparameters7.1.2.2.3.1LinecodingThelinecodingshallbebinaryNonReturntoZero(NRZ).Theconventionusedforopticallogiclevelis:-emissionoflightforabinaryONE;-noemissionoflightforabinaryZERO.TheextinctionratioshallbeinaccordancewithETSIETS300232[3],applicationcodeI-1.7.1.2.2.3.2OperatingwavelengthTheoperatingwavelengthshallbearound1310nm(secondwindow)andinaccordancewithETSIETS300232[3],applicationcodeI-1.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)217.1.2.2.3.3InputandoutputportcharacteristicsTheopticalparametersshallbeinaccordancewithETSIETS300232[3],applicationcodeI-1.Somenationalapplicationmayuseopticalparametersformulti-modefibres.ThespecificationpointsassociatedwithinterfacepointsIaandIbcorrespondtomeasurement"referencepoints"SandRasdefinedinETSIETS300232[3].Theopticalparametersarespecifiedforthetransmitterandreceiveratthesespecificationpointsandfortheopticalpathbetweenthesespecificationpoints,i.e.theconnectorattheinterfaceisconsideredtobepartoftheequipmentandnotpartofthefibreinstallation.7.1.2.2.4OpticalconnectorsThepresentationofinterfacepointIbatB-NT1orB-NT2shallbeviaasocket.ThepresentationofinterfacepointIaatB-TEorB-NT2shallbeusingeither:a)asocket,i.e.theconnectionshallbemadetotheequipmenttowardthenetworkwithacablewithplugsonbothends;orb)anintegralconnectingcordwithplugonthefreeend.7.1.2.2.5SafetyrequirementsForsafetyreasons,theparametersforIEC60825-1[13],Class1devicesshallnotbeexceeded,evenunderfailureconditions.7.1.2.3JitterandwanderForbothelectricalandopticalBroadbandUNI(B-UNI),theinterfaceoutputjittershallbeinaccordancewiththeappropriatelimitgiveninITU-TRecommendationG.825[15]fortheelectricalandopticalinterface.EquipmentshavinganelectricaloropticalB-UNI(e.g.B-NT1,B-NT2,B-TE)andwhichmeettheoutputjittertoleranceandthejittertransferspecificationsgiveninITU-TRecommendationsG.825[15]andG.958[16]respectively,areassuredofproperoperationwhentheinterfaceoutputjitterconformstothelimitsinITU-TRecommendationG.825[15].8PhysicalmediumcharacteristicsoftheUNIat622080kbit/s8.1CharacteristicsoftheinterfaceattheTBandSBreferencepoints8.1.1BitrateandinterfacesymmetryThebitrateoftheinterfaceinatleastonedirectionshallbe622080kbit/s.Thefollowingpossibleinterfaceshavebeenidentified:a)anasymmetricalinterfacewith622080kbit/sinonedirectionand155520kbit/sintheotherdirection;b)asymmetricalinterfacewith622080kbit/sinbothdirections.Ifoptiona)ischosen,thenthe155520kbit/scomponentshouldcomplywiththecharacteristicsasgiveninclause7.Thenominalbitrateinfreerunningclockmodeshallbe622080kbit/swithatoleranceof±20ppm.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)228.1.2PhysicalcharacteristicsForthepurposesofthepresentdocument,onlytheopticalinterfaceisconsidered.8.1.2.1AttenuationrangeTheattenuationoftheopticalpathbetweenthespecificationpointsSandRshallbeintherangeof0dBto7dB(seesubclause7.1.2.2.3.3).8.1.2.2TransmissionmediumThetransmissionmediumshallconsistoftwosinglemodefibresaccordingtoITU-TRecommendationG.652[1],oneforeachdirection.8.1.2.3Opticalparameters8.1.2.3.1LinecodingThelinecodingshallbebinaryNonReturntoZero(NRZ).Theconventionusedforopticallogiclevelis:-emissionoflightforabinaryONE;-noemissionoflightforabinaryZERO.TheextinctionratioshallbeinaccordancewithETSIETS300232[3],applicationcodeI-4.8.1.2.3.2OperatingwavelengthTheoperatingwavelengthshallbearound1310nm(secondwindow)andinaccordancewithETSIETS300232[3],applicationcodeI-4.8.1.2.3.3InputandoutputportcharacteristicsTheopticalparametersshallbeinaccordancewithETSIETS300232[3],applicationcodeI-4.ThespecificationpointsassociatedwithinterfacepointsIaandIbcorrespondtomeasurementreferencepointsSandRasdefinedinETSIETS300232[3].Theopticalparametersarespecifiedforthetransmitterandreceiveratthesespecificationpointsandfortheopticalpathbetweenthesespecificationpoints,i.e.theconnectorattheinterfaceisconsideredtobepartoftheequipmentandnotpartofthefibreinstallation.8.1.2.4OpticalconnectorsThepresentationofinterfacepointIbatB-NT1orB-NT2shallbeviaasocket.ThepresentationofinterfacepointIaatB-TEorB-NT2shallbeusingeither:a)asocket,i.e.theconnectionshallbemadetotheequipmenttowardthenetworkwithacablewithplugsonbothends;orb)anintegralconnectingcordwithplugonthefreeend.8.1.2.5SafetyrequirementsForsafetyreasons,theparametersforIEC60825-1[13],Class1devicesshallnotbeexceededevenunderfailurecondition.SIST EN 300 299 V1.3.2:2003
ETSIETSIEN300299V1.3.2(2000-05)238.1.2.6JitterandwanderForbothelectricalandopticalB-UNI,theinterfaceoutputjittershallbeinaccordancewiththeappropriatelimitgiveninITU-TRecommendationG.825[15]fortheelectricalandopticalinterface.EquipmentshavinganelectricaloropticalB-UNI(e.g.B-NT1,B-NT2,B-TE)andwhichmeettheoutputjittertoleranceandthejittertransferspecificationsgiveninITU-TRecommendationsG.825[15]andG.958[16]respectively,areassuredofproperoperationwhentheinterfaceoutputjitterconformstothelimitsinITU-TRecommendationG.825[15].9Powerfeeding9.1ProvisionofpowerTheprovisionofpowertotheB-NT1viatheUNInetworkinterfaceisoptional.IfthepowerisprovidedviatheUNI,thefollowingconditionsshallapply:-aseparatepairofwiresshallbeusedfortheprovisionofpowertotheB-
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