SIST EN 300 453 V1.2.1:2004

Access and Terminals (AT); Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S); Terminal equipment interface

Specification of the terminal equipment side of the interface and test procedures for compliance. Revision of ETS 300 453 to improve the safety related text following a liaison received from TC Safety.

Dostop in terminali (AT) - Analogni 4-žični zakupljeni vodi z govorno pasovno širino ter navadno in posebno kakovostjo (A4O in A4S) - Vmesnik terminalske opreme

General Information

• Status: Published
• Publication Date: 30-Sep-2004
• ICS: 33.040.50 - Lines, connections and circuits
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Oct-2004
• Due Date: 01-Oct-2004
• Completion Date: 01-Oct-2004
• Mandate: T-147-2
• Ref Project: ETSI EN 300 453 V1.2.1 (2001-07) - Access and Terminals (AT); Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S); Terminal equipment interface

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HUPLQDOVNHRSUHPHAccess and Terminals (AT); Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S); Terminal equipment interface33.040.50Vodi, zveze in tokokrogiLines, connections and circuitsICS:Ta slovenski standard je istoveten z:EN 300 453 Version 1.2.1SIST EN 300 453 V1.2.1:2004en01-oktober-2004SIST EN 300 453 V1.2.1:2004SLOVENSKI
STANDARD



SIST EN 300 453 V1.2.1:2004



ETSIEN300453V1.2.1(2001-07)EuropeanStandard(Telecommunicationsseries)AccessandTerminals(AT);OrdinaryandSpecialqualityvoicebandwidth4-wireanalogueleasedlines(A4OandA4S);TerminalequipmentinterfaceSIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)2ReferenceREN/AT-010006KeywordsONP,leasedlineETSI650RoutedesLuciolesF-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 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)3ContentsIntellectualPropertyRights.4Foreword.4Introduction.51Scope.62References.63Definitionsandabbreviations.63.1Definitions.63.2Abbreviations.74Requirements.74.1Physicalcharacteristics.74.2Electricalcharacteristics.84.2.1Returnloss.84.2.2Longitudinalconversionloss.84.2.3Transmissionsignals.94.2.3.1Equipmentwithanacousticinput.104.2.3.1.1SendingLoudnessRating(SLR).104.2.3.2Equipmentwithinternallygeneratedelectricalsignals.104.2.3.2.1Maximummeanpower.104.2.3.2.2Maximuminstantaneouspower(peakvoltage).104.2.3.2.3Maximumpowerina10Hzbandwidth.104.2.3.3Equipmentwithanelectricalinput.114.2.4Maximumsendingpowerabove4,3kHz.114.2.5Powerfeeding.124.3Safety.124.4Overvoltage.124.5ElectroMagneticCompatibility(EMC).13AnnexA(normative):Testmethods.14A.1General.14A.1.1Equipmentconnection.14A.1.2Referenceimpedance.14A.1.3Non-reactivetermination.14A.2Testmethods.15A.2.1Returnloss.15A.2.2Longitudinalconversionloss.16A.2.3SendingLoudnessRating(SLR).17A.2.4Maximummeanpower.18A.2.5Maximuminstantaneouspower(peakvoltage).19A.2.6Maximumpowerina10Hzbandwidth.20A.2.7Maximumsendingpowerabove4,3kHz.21A.2.8Powerfeeding.22AnnexB(informative):Bibliography.23History.24SIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(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)toprovidestandardsforthesupportoftheDirectiveonOpenNetworkProvision(ONP)ofleasedlines(92/44/EEC).Therearetwootherstandardsdirectlyrelatedtothepresentdocument:-EN300451:"AccessandTerminals(AT);Ordinaryqualityvoicebandwidth4-wireanalogueleasedline(A4O);Connectioncharacteristicsandnetworkinterfacepresentation".-EN300452:"AccessandTerminals(AT);Specialqualityvoicebandwidth4-wireanalogueleasedline(A4S);Connectioncharacteristicsandnetworkinterfacepresentation".ThepresentdocumentisbasedoninformationfromITU-TRecommendationsandETSIpublicationsandtherelevantdocumentsarequotedwhereappropriate.NationaltranspositiondatesDateofadoptionofthisEN:29June2001DateoflatestannouncementofthisEN(doa):30September2001DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31March2002DateofwithdrawalofanyconflictingNationalStandard(dow):31March2002SIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)5IntroductionTheCouncilDirectiveontheapplicationofONPtoleasedlines(92/44/EEC),concernstheharmonizationofconditionsforopenandefficientaccessto,anduseof,theleasedlinesprovidedoverpublictelecommunicationsnetworksandtheavailabilitythroughouttheEuropeanUnion(EU)ofaminimumsetofleasedlineswithharmonizedtechnicalcharacteristics.TheconsequenceoftheDirectiveisthattelecommunicationsorganizationswithintheEUshallmakeavailableasetofleasedlineswithinandbetweenpointsinthesecountrieswithspecifiedconnectioncharacteristicsandspecifiedinterfaces.Twocategories(voluntaryandregulatory)ofstandardwereusedfortheinterfacesofterminalequipmentdesignedforconnectiontotheONPleasedlines.TechnicalBasisforRegulations(TBRs)gavetheearlieressentialrequirementsundertheDirective91/263/EEC,laterreplacedby98/13/EC,forattachmenttotheleasedlines,whereasothervoluntarystandards(ETSsorENs)gavethefulltechnicalspecificationsfortheseinterfaces.Thepresentdocument,whichisbasedonanearlierETS,belongstothesecondcategory.TherequirementsofTBR17areasubsetofthepresentdocument.Thepresentversionofthepresentdocumenthasbeenproducedtointroducesomenecessarychanges.ITU-TRecommendationsM.1020andM.1040wereusedasthebasisfortheleasedlinestandardstowhichthisterminalequipmentinterfacerelates.SIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)61ScopeThepresentdocumentspecifiesthephysicalandelectricalcharacteristics(exceptsafety,overvoltageandEMCaspects)andcorrespondingtestprinciplesforaterminalequipmentinterfaceforconnectiontothenetworkterminationpointsofOpenNetworkProvision(ONP)ordinaryqualityorspecialqualityvoicebandwidth4-wireanalogueleasedlinesdefinedbyEN300451andEN300452.ThepresentdocumentiswrittenonlytoensurethattheinterfaceoftheterminalequipmentiscompatiblewiththeONPordinaryqualityorspecialqualityvoicebandwidth4-wireanalogueleasedline.Itisapplicabletoallinterfacesdesignedforconnectiontotheseleasedlines,howeverinthecasesofapparatusthatcarriesaparticularservice,ofcomplexapparatusandofapparatusinprivatenetworks,otherrequirementsmayapplyinadditiontothepresentdocument.CustomerpremiseswiringandinstallationbetweentheterminalequipmentandtheNetworkTerminationPoint(NTP)areoutsidethescopeofthepresentdocument.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublicationand/oreditionnumberorversionnumber)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ISO/IEC8877(1992):"Informationtechnology.Telecommunicationsandinformationexchangebetweensystems.InterfaceconnectorandcontactassignmentsforISDNBasicAccessInterfacelocatedatreferencepointsSandT".[2]ITU-TRecommendationP.56(1993):"Objectivemeasurementofactivespeechlevel".[3]ITU-TRecommendationP.64(1999):"Determinationofsensitivity/frequencycharacteristicsoflocaltelephonesystems".3Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapply:leasedlines:telecommunicationsfacilitiesprovidedbyapublictelecommunicationnetworkthatprovidedefinedtransmissioncharacteristicsbetweennetworkterminationpointsandthatdonotincludeswitchingfunctionsthattheusercancontrol,(e.g.on-demandswitching)NetworkTerminationPoint(NTP):allphysicalconnectionsandtheirtechnicalaccessspecificationswhichformpartofthepublictelecommunicationnetworkandarenecessaryforaccesstoandefficientcommunicationthroughthatpublicnetworkreferenceimpedanceZR:thisis600Ω.SeealsoclauseA.1.2SIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)7terminalequipment:equipmentintendedtobeconnectedtothepublictelecommunicationnetwork,i.e.:-tobeconnecteddirectlytotheterminationofapublictelecommunicationnetwork;or-tointerworkwithapublictelecommunicationnetworkbeingconnecteddirectlyorindirectlytotheterminationofapublictelecommunicationnetwork,inordertosend,process,orreceiveinformationvoicebandwidth:bandoffrequenciesovertherange300Hzto3400Hz3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:aReturnlossDTMFDualToneMulti-FrequencyEMCElectroMagneticCompatibilityNTPNetworkTerminationPointONPOpenNetworkProvisionpmSoundpressureatthemouthreferencepoint(usedinthecalculationofSLR)rmsrootmeansquareRXRXisasignalinput(ateithertheterminalequipmentorthetestequipment,seefigure1)SLRSendingLoudnessRatingSmJSendingsensitivity(usedinthecalculationofSLR)SmJnSendingsensitivityatfrequencyfn(usedinthecalculationofSLR)TXTXisasignaloutput(ateithertheterminalequipmentorthetestequipment,seefigure1)WsnSendingweightingfactor(usedinthecalculationofSLR)ZRReferenceimpedanceZTTerminatingimpedance4Requirements4.1PhysicalcharacteristicsRequirement:Theterminalequipmentshallprovideoneormoreofthefollowingconnectionmethods:a)an8-contactplugofthetypespecifiedinISO/IEC8877[1]withcontactassignmentsasspecifiedintable1;b)asetofconnectioncontacts(e.g.aninsulationdisplacementconnectororscrewterminalblock)towhichsolidconductorswithdiametersintherange0,4mmto0,6mmmaybeconnected;c)awiringarrangementconnectedbyanymeanstotheterminalequipment,withunterminatedsolidwireconductorswithdiametersintherange0,4mmto0,6mmatthedistantendfromtheterminalequipment.Wherea)andc)areprovided,thesemaybedetachablebytheusersuchthatonlyoneisconnectedtotheterminalequipmentatanytime.NOTE:Thenormalpresentationoftheleasedlineisbymeansofasocket.SIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)8Table1:ContactassignmentContactnumberTerminalequipment1Unused2Unused3&6Transmitpair(Outputport)4&5Receivepair(Inputport)7Unused8UnusedNOTE:Thetransmitpairistheoutputfromtheterminalequipment.Thereceivepairistheinputtotheterminalequipmentasshowninfigure1.Wheretheterms"output"and"input"areusedwithoutqualificationinthepresentdocument,theyrefertotheterminalequipmentinterface.TXRXRXTXTERMINALEQUIPMENTINTERFACENETWORKINTERFACEOUTPUTINPUTINPUTOUTPUTFigure1:LeasedlineconfigurationconventionsTest:Thereshallbeavisualinspectionthatoneormoreoftheconnectionmethodsareprovided.ThecontactassignmentsandconnectionmethodsaretestedindirectlythroughthetestsinannexA.4.2ElectricalcharacteristicsTherequirementsofclause4.2applyonlyintheintendedoperatingstateoftheterminalequipment.4.2.1ReturnlossRequirement:Thereturnlossoftheimpedanceoftheinputandoutputportsoftheterminalequipmentinterfacewithrespecttothereferenceimpedance,inthefrequencyrange200Hzto4000Hz,shallbegreaterthanorequalto8dBthroughouttherangewhentestedusingastimulussignalatavoltageequivalenttothatofasignalpowerof-13dBmat1020Hz.Test:ThetestshallbeconductedaccordingtoclauseA.2.1.4.2.2LongitudinalconversionlossRequirement:Thelongitudinalconversionlossoftheinputandoutputportsoftheterminalequipmentinterfaceshallbegreaterthanorequaltothevaluesgivenintable2andfigure2.NOTE:Thelongitudinalconversionlossspecifiestheunwantedtransversesignaldetectedbytheterminalequipmentwhenalongitudinalsignalisappliedequallytotheterminalsoftheinterface.Certainnetworksmayhavehighlongitudinalsignallevels(e.g.65Vrootmeansquare(rms));inthiscase,ahigherlongitudinalconversionlossmaybenecessarytoensureadequateoperationoftheterminalequipment.SIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)9Table2:Longitudinalconversionloss,minimumvaluesFrequencyrangeMinimumvalue300Hzto600Hz40dB600Hzto3400Hz46dB60010003400FrequencyHz1020304050300LongitudinalconversionlossdB4640020005000500Figure2:Longitudinalconversionloss,minimumvaluesTest:ThetestshallbeconductedaccordingtoclauseA.2.2.4.2.3TransmissionsignalsThesourceandnatureoftheoutputsignalfromtheterminalequipmentinterfacecanbeclassifiedinseveraldifferentwaysthusdividingtheterminalequipmentsintoseveralnon-exclusivecategories.Onetypeofterminalequipmentmaythereforeneedtobetreatedasamemberofmorethanoneofthecategories.Forthepurposesofthepresentdocumentthegeneralcategoriesrequiringidentificationaredefinedasfollows:a)anyterminalequipmentwheretheoutputsignalisderivedinrealtimefromanintegralacousticinterface.Seeclause4.2.3.1;b)anyterminalequipmentwheretheoutputsignalisgeneratedelectricallywithintheterminalequipment.Seeclause4.2.3.2;c)anythroughconnectingterminalequipmentwheretheoutputsignalisderivedfromanotherelectricalinterface.Seeclause4.2.3.3.NOTE:Terminalequipmentsmaybelongtomorethanonecategory.Atelephonemaybeinbothcategorya)fortelephonyandcategoryb)forthegenerationofDualToneMulti-Frequency(DTMF)tones.Afunctionforgeneratingsyntheticorrecordedspeechormusic,suchasisfoundinansweringmachinesorvoicemail,isincludedincategoryb).SIST EN 300 453 V1.2.1:2004



ETSIETSIEN300453V1.2.1(2001-07)104.2.3.1Equipmentwithanacousticinput4.2.3.1.1SendingLoudnessRating(SLR)Requirement:TheminimumSLRoftheterminalequipment,whenterminatedwiththereferenceimpedanceZR,shallbegreaterthanorequalto-1dB.NOTE:TheminimumSLRvalueof-1dBreferstotheactualmeasuredvalueratherthanthenominalvalue,i.e.thereisnotoleranceonthespecifiedvalue,andhasbeenspecifiedtoensurenoharmtothenetwork.Itisrecommendedthatfornormaloperation,theSLRshouldbegreaterthanorequalto+2dB.Test:ThetestshallbeconductedaccordingtoclauseA.2.3.4.2.3.2Equipmentwithinternallygeneratedelectricalsignals4.2.3.2.1MaximummeanpowerRequirement:Themeanpowerlevelinthefrequencyrange200Hzto3800Hzinanyoneminuteperiodshallbenotgreaterthan-13dBmwhentheterminalequipmentinterfaceisterminatedwiththereferenceimpedanceZR.Test:ThetestshallbeconductedaccordingtoclauseA.2.4.4.2.3.2.2Maximuminstantaneouspower(peakvoltage)Themaximuminstantaneouspowerisexpressedintermso
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