ETSI EN 300 289 V1.2.1 (2001-07)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Access and Terminals (AT); 64 kbit/s digital unrestricted leased line with octet integrity (D64U); Connection characteristics33.040.50Vodi, zveze in tokokrogiLines, connections and circuitsICS:Ta slovenski standard je istoveten z:EN 300 289 Version 1.2.1SIST EN 300 289 V1.2.1:2003en01-december-2003SIST EN 300 289 V1.2.1:2003SLOVENSKI
STANDARD



SIST EN 300 289 V1.2.1:2003



ETSIEN300289V1.2.1(2001-07)EuropeanStandard(Telecommunicationsseries)AccessandTerminals(AT);64kbit/sdigitalunrestrictedleasedlinewithoctetintegrity(D64U);ConnectioncharacteristicsSIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)2ReferenceREN/AT-020018KeywordsONP,leasedline,access,digital,testingETSI650RoutedesLuciolesF-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.©EuropeanTelecommunicationsStandardsInstitute2001.Allrightsreserved.SIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)3ContentsIntellectualPropertyRights.4Foreword.4Introduction.51Scope.62References.63Definitions.74Abbreviations.75Requirements.85.1Attributes.85.1.1Informationtransferrate.95.1.2Informationtransfersusceptance.95.1.3Structure.95.1.4Establishmentofcommunication.95.1.5Symmetry.95.1.6Communicationconfiguration.95.1.7Networkperformance.95.1.7.1Transmissiondelay.105.1.7.2Jitter.115.1.7.2.1Jittertoleranceatthenetworkinputport.115.1.7.2.2Maximumjitteratthenetworkoutputport.125.1.7.3Octetslip.125.1.7.4Error.125.1.7.4.1Erroredseconds.125.1.7.4.2Severelyerroredseconds.12AnnexA(normative):Testmethods.13A.1General.13A.1.1Equipmentconnection.13A.1.2Sequenceofperformingthetests.13A.2Testmethods.14A.2.1Informationtransferrate,susceptance,structureandsymmetry.14A.2.2Delay.15A.2.3Jitter.15A.2.4Errorandoctetslip.16AnnexB(informative):Reductionofthemeasuringperiodforerror.17B.1Introduction.17B.2Explanation.17AnnexC(informative):Bibliography.20History.21SIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)4IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeAccessandTerminals(AT).ThepresentdocumentresultedfromamandatefromtheCommissionoftheEuropeanCommunity(CEC)toprovidestandardsforsupportoftheDirectiveonOpenNetworkProvision(ONP)ofleasedlines(92/44/EEC).Therearetwootherstandardsdirectlyrelatedtothepresentdocument:-EN300288:"AccessandTerminals(AT);64kbit/sdigitalunrestrictedleasedlinewithoctetintegrity(D64U);Networkinterfacepresentation";-EN300290:"AccessandTerminals(AT);64kbit/sdigitalunrestrictedleasedlinewithoctetintegrity(D64U);Terminalequipmentinterface".ThepresentdocumentisbasedoninformationfromITU-TRecommendationsandETSIpublicationsandtherelevantdocumentsarequotedwhereappropriate.NationaltranspositiondatesDateofadoptionofthisEN:29June2001DateoflatestannouncementofthisEN(doa):30September2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31March2002DateofwithdrawalofanyconflictingNationalStandard(dow):31March2002SIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)5IntroductionTheCouncilDirectiveontheapplicationofOpenNetworkProvision(ONP)toleasedlines(92/44/EEC)concernstheharmonizationofconditionsforopenandefficientaccessto,anduseof,theleasedlinesprovidedoverpublictelecommunicationsnetworks,andtheavailabilitythroughouttheCommunity(EEC)ofaminimumsetofleasedlineswithharmonizedtechnicalcharacteristics.TheconsequenceoftheDirectiveisthatTelecommunicationsOrganizationswithintheEECshallmakeavailableasetofleasedlinesbetweenpointsinthesecountrieswithspecifiedconnectioncharacteristicsandspecifiedinterfaces.UndertheDirective91/263/EEClaterreplacedby98/13/EC,terminalequipmentforconnectiontotheseleasedlineswasrequiredtofulfilcertainessentialrequirements.Thepresentversionofthepresentdocumenthasbeenproducedtointroducesomenecessarychanges.ITU-TRecommendationI.340forISDNconnectiontypeswasusedasabasisfortheconnectioncharacteristics.SIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)61ScopeThepresentdocumentspecifiesthetechnicalrequirementsandtestprinciplesfortheconnectioncharacteristicsofONP64kbit/sdigitalunrestrictedleasedlineswithoctetintegrity.Theleasedlineprovidesaccesstothefulldigitalbitrateof64kbit/s,withnetworktimingforbothdirectionsofthetransmission,withnorestrictionsonthebinarycontent.AconnectionispresentedviainterfacesatNetworkTerminationPoints(NTP)andincludesanyequipmentthatmayprovidetheNTP.Signalsbetweenterminalequipmentsaresubjecttoimpairmentsduringtheirtransferovertheconnection.Thelimitstotheseimpairmentsarestatedinthepresentdocument,andtheselimitsapplyonlywheretheterminaloutputsignalsaresynchronouswiththeoutputoftheleasedline.Togetherwiththecompanionstandard,EN300288[2]definingthenetworkinterfacepresentation,thepresentdocumentdescribestheserviceoffered.Thetestsspecifiedinthepresentdocumentcannotbecarriedout,norcantheperformancebemonitoredbytheleasedlineprovider,whiletheleasedlineisinservice,i.e.carryingusers'traffic.Thusthetestsaredesignedforbringingintoandreturningintoservice,althoughthereisnoobligationtoperformthesetestseachtimealeasedlineisbroughtintoorreturnedintoservice.Thepresentdocumentisapplicableforleasedlines,includingparttimeleasedlines,forwhichtheestablishmentorreleasedoesnotrequireanyprotocolexchangeorotherinterventionattheNTP.Thepresentdocumentspecifiesthecompliancetestsfortheconnectionrequirements.Thepresentdocumentdoesnotincludedetailsconcerningtheimplementationofthetests,nordoesitincludeinformationonanyrelevantregulations.ThepresentdocumentdescribesthosecharacteristicsoftheconnectionthatcannotbedeterminedonlybytheequipmentprovidingtheNTPs.Therelatedstandard,EN300288[2],definesthenetworkinterfacepresentationandplacesnofurtherconstraintsontheconnection.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ITU-TRecommendationO.152(1992):"Errorperformancemeasuringequipmentforbitratesof64kbit/sandNx64kbit/s".[2]ETSIEN300288:"AccessandTerminals(AT);64kbit/sdigitalunrestrictedleasedlinewithoctetintegrity(D64U);Networkinterfacepresentation".SIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)73DefinitionsForthepurposesofthepresentdocument,thetermsanddefinitionsgiveninITU-TRecommendationG.821andthefollowingapply.Leasedlines:telecommunicationsfacilitiesprovidedbyapublictelecommunicationsnetworkthatprovidedefinedtransmissioncharacteristicsbetweennetworkterminationpointsandthatdonotincludeswitchingfunctionsthattheusercancontrol,(e.g.on-demandswitching)NetworkTerminationPoint(NTP):allphysicalconnectionsandtheirtechnicalaccessspecificationswhichformpartofthepublictelecommunicationsnetworkandarenecessaryforaccesstoandefficientcommunicationthroughthatpublicnetworkUnavailabilityperiod:periodoftimebeginningatthefirstof10consecutiveseverelyerroredsecondsandendingimmediatelybeforethefirstfollowingperiodof10consecutivesecondsnoneofwhichareseverelyerroredErroredsecond:secondwithoneormorebiterrorsSeverelyerroredsecond:secondwhereatleast0,1%ofthebitsareerroredSlip:oneormoreextraormissingconsecutiveunitintervalsinthebitstreamOctetslip:slipofonecompleteoctetErroredSecondsRatio(ESR):ratiooferroredsecondsoverallsecondswithinaspecifiedmeasuringperiod,whereneitherarecountedduringunavailabilityperiodsSeverelyErroredSecondsRatio(SESR):ratioofseverelyerroredsecondsoverallsecondswithinaspecifiedmeasuringperiod,whereneitherarecountedduringunavailabilityperiodsSatellitetransmission:transmissionviaanearthorbitingsatellite4AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:D64U64kbit/sdigitalunrestrictedONPleasedlinewithoctetintegrityESRErroredSecondsRatioHRXHypotheticalReferenceconfigurationNTPNetworkTerminationPointONPOpenNetworkProvisionPRBS(211-1)PseudoRandomBitSequence(asdefinedinclause2.1ofITU-TRecommendationO.152[1])RXReceive(asignalinputateithertheleasedlineinterfaceorthetestequipment)SESRSeverelyErroredSecondsRatioTXTransmit(asignaloutputateithertheleasedlineinterfaceorthetestequipment)UIUnitIntervalSIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)85RequirementsTheperformanceoftheleasedlineshallcomplywiththeserequirements,onlyiftheconditionsofsupplyofthenetworkequipmentthatprovidestheNTParemet,(e.g.iftheequipmentisconnectedtoanappropriatepowersupplyonthecustomer'spremises).TheITU-Tattributetechniqueisusedtoexpresstheconnectionrequirements.ThefollowingattributesfromITU-TRecommendationI.140areconsideredrelevantforthepresentdocument:• informationtransferrate;• informationtransfersusceptance;• structure;• establishmentofcommunication;• symmetry;• connectionconfiguration;• networkperformance.NOTE:"Bitrate"isequivalentto"informationtransferrate"inthepresentdocument.Thefollowingnetworkperformancesub-attributesareconsideredrelevantforthepresentdocument:• transmissiondelay;• jitter;• octetslip;• error.5.1AttributesTheconnectionattributesaredisplayedintable1.Ineffect,theseattributesdefinetheservicebeingoffered.Thevaluesandtheassociatedcompliancetestscanbefoundinthesubsequentclauses.Table1:ConnectionattributesConnectiontypeattributesValueDescriptionNatureReferenceclause:Informationtransferrate64kbit/sSee5.1.1InformationtransfersusceptanceUnrestricteddigitalSee5.1.2StructureOctetintegritySee5.1.3EstablishmentofcommunicationWithoutuserinterventionSee5.1.4SymmetrySymmetricalinbothdirectionsSee5.1.5CommunicationconfigurationPointtopointSee5.1.6Networkperformancesub-attributesConnectiontypeattributesValueDescriptionNatureReferenceclause:TransmissiondelayTerrestrialandsatelliteoptionsSee5.1.7.1JitterInputandoutputportsSee5.1.7.2Octetslip5per24hourperiodSee5.1.7.3ErrorparametersTimeintervalwitherroredblocksValueDescriptionNatureReferenceclause:Erroredseconds5324per24hourperiodSee5.1.7.4.1Severelyerroredseconds105per24hourperiodSee5.1.7.4.2SIST EN 300 289 V1.2.1:2003



ETSIETSIEN300289V1.2.1(2001-07)95.1.1InformationtransferrateRequirement:Theconnectionshallbecapableoftransferringinformationatanominalinformationrateof64kbit/swhichshallbesynchronoustothenetworktiming.NOTE:Networktimingistimingthatisderivedfromthesourceorsourcesoftimingthatareusedforthewholenetwork.Thusthetimingprovidedbytheleasedlinewillbesimilartothatprovidedbyotherdigitalservices.Test:ThetestshallbeconductedaccordingtoclauseA.2.1.5.1.2InformationtransfersusceptanceRequirement:Theconnectionshallbecapableoftransferringunrestricteddigitalinformation.Test:ThetestshallbeconductedaccordingtoclauseA.2.1.5.1.3StructureRequirement:Theconnectionshallbecapableoftransferringtheoctettimingpresentattheinput.NOTE:Whenthereisnoinputsignaloroctettimingisnotpresentattheleasedlinedistantinputorwhenthereisafailureintheleasedlineconnection,theoctettimingattheleasedlineoutputwillnotbemeaningful.Test:ThetestshallbeconductedaccordingtoclauseA.2.1.5.1.4EstablishmentofcommunicationRequirement:EstablishmentorreleaseoftheconnectionshallnotrequireanyprotocolexchangeorotherinterventionattheNTPbytheuser.Test:Bydeclaration.5.1.5SymmetryRequirement:Theconnectionshallbesymmetrical,i.e.eachdirectionoftransmissionshallhavethesameinformationtransfercapabi
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