SIST EN 300 289 V1.2.1:2003

• Abstract:

  Specification of the performance requirement for the connection through the public network, including test procedures for compliance. Revision of ETS 300 289 to improve the safety related aspects following a liaison received from TC Safety

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.040.50 - Lines, connections and circuits
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 289 V1.2.1 (2001-07) - Access and Terminals (AT); 64 kbit/s digital unrestricted leased line with octet integrity (D64U); Connection characteristics

SIST EN 300 289 V1.2.1:2003 is the Slovenian adoption of ETSI EN 300 289 Version 1.2.1. It specifies the connection characteristics for an Open Network Provision (ONP) 64 kbit/s digital unrestricted leased line with octet integrity (D64U) and the test principles used to check compliance.

What does SIST EN 300 289 V1.2.1:2003 specify?

SIST EN 300 289 V1.2.1:2003 covers the technical requirements and compliance tests for the connection through the public network for D64U leased lines. The document focuses on the service seen at Network Termination Points (NTP) and on impairments that can occur while signals are transferred end to end.

The scope says the tests are meant for bringing a line into service and returning it to service, not for continuous in-service monitoring. The standard is applicable to leased lines, including part-time leased lines, where establishment and release do not require protocol exchange or other intervention at the NTP.

Annex	What it covers
Annex A	Normative test methods
Annex B	Informative reduction of the measuring period for error
Annex C	Informative bibliography

What are the key requirements of SIST EN 300 289 V1.2.1:2003?

SIST EN 300 289 V1.2.1:2003 sets out the service attributes that define the connection and the network performance limits that the connection must meet. In practice, it tells providers and testers what to verify at the NTP and how to judge pass or fail.

Connection attributes in Clause 5.1

The standard requires a nominal information transfer rate of 64 kbit/s, unrestricted digital information, octet integrity, no user intervention to establish or release the connection, symmetry in both directions, and a point-to-point configuration. This matters because the leased line is intended to behave as a transparent digital path rather than a managed protocol service.

Network performance in Clause 5.1.7

Clause 5.1.7 covers transmission delay, jitter, octet slip, and error performance. The delay limit depends on whether satellite transmission is involved, with a distance-based limit for terrestrial paths and a fixed limit for satellite-involved connections. For users, this means the standard distinguishes between different transmission media and sets expectations accordingly.

Jitter limits in Clauses 5.1.7.2.1 and 5.1.7.2.2

The leased line must tolerate specified sinusoidal input jitter and must keep output jitter within defined limits when measured with the stated filter bandwidths. In practice, installers and laboratories need to check both resilience to jitter at the input and jitter passed through to the output.

Octet slip and error limits in Clauses 5.1.7.3 and 5.1.7.4

The standard limits octet slips to fewer than 5 in at least one of two consecutive 24-hour periods, and it also limits errored seconds and severely errored seconds over the same type of measuring period. This is important for acceptance testing because it ties performance to a full-day observation window.

Test conditions in Clause 5

The performance requirements apply only if the network equipment conditions of supply are met, such as appropriate power supply on the customer’s premises. That means the measured performance is only valid when the installation is operating under the intended supply conditions.

What terms does SIST EN 300 289 V1.2.1:2003 define?

SIST EN 300 289 V1.2.1:2003 defines the terms it uses so that testing and reporting are consistent.

• Leased line - A telecommunications facility provided by a public network with defined transmission characteristics between network termination points and no user-controlled switching.
• Network Termination Point (NTP) - The physical connection and technical access specification that form part of the public network and provide access to it.
• Errored second - A second with one or more bit errors.
• Severely errored second - A second where at least 0.1% of the bits are errored.
• Octet slip - A slip of one complete octet.
• Errored Seconds Ratio (ESR) - The ratio of errored seconds to total seconds in the measuring period, excluding unavailability periods.
• Severely Errored Seconds Ratio (SESR) - The ratio of severely errored seconds to total seconds in the measuring period, excluding unavailability periods.
• PRBS (211-1) - A pseudo-random bit sequence used as the test stimulus.

Who uses SIST EN 300 289 V1.2.1:2003?

SIST EN 300 289 V1.2.1:2003 is used by public telecommunications network operators, leased line providers, test laboratories, terminal equipment suppliers, and conformity assessment teams. It is also relevant to engineers and quality managers who need to verify that a 64 kbit/s D64U connection meets the service characteristics expected at the NTP.

What changed in SIST EN 300 289 V1.2.1:2003 from the previous edition?

SIST EN 300 289 V1.2.1:2003 is a revision of ETS 300 289. The scope and foreword state that this version introduces necessary changes, including improvements to safety-related aspects following liaison from TC Safety.

Which standards are used with SIST EN 300 289 V1.2.1:2003?

SIST EN 300 289 V1.2.1:2003 cites ITU-T Recommendation O.152 for error performance measuring equipment at 64 kbit/s and Nx64 kbit/s, and EN 300 288 for the network interface presentation of the same D64U service. The foreword also names EN 300 290 as the related terminal equipment interface standard, so the three documents are used together when the full D64U service is being specified.

What does the SIST EN 300 289 V1.2.1:2003 document contain?

The document includes a summary table of connection attributes, performance sub-attributes, and the clauses where each is specified. It also includes delay and jitter figures, input and output jitter tables, and an octet slip and error test method in Annex A.

Annex A gives the test setups, stimuli, monitoring points, and pass criteria for rate, structure, symmetry, delay, jitter, error, and octet slip. Annex B explains how the error limits were converted to a 24-hour measuring period and includes a comparison table for ESR and SESR values. Annex C lists supporting references used when the standard was prepared.

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
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.:[phone]Fax:[phone]SiretN°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:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.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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