ISO IEC 8877-1992原版完整文件VIP免费

INTERNATIONALSTANDARDISO/IEC8877Secondedition1992-11-15Informationtechnology—Telecommunicationsandinformationexchangebetweensystems—InterfaceconnectorandcontactassignmentsforISDNBasicAccessInterfacelocatedatreferencepointsSandTTechnologiesdeI'information—Télécommunicationsetéchanged'informationsentresystèmes—Connecteurd'interfaceetaffectationdescontactspourIinterfaced'accèsdebaseauRNISsituéeauxpointsderéférenceSetTReferencenumberISO/IEC8877:1992(E)ISO/IEC8877:1992(E)ForewordISO(theInternationalOrganizationforStandardization)andIEC(theInter-nationalElectrotechnicalCommission)formthespecializedsystemforworldwidestandardization.NationalbodiesthataremembersofISOorwithparticularfieldsoftechnicalactivity.ISOandIECtechnicalcommit-teescollaborateinfieldsofmutualinterest.Otherintemationalorganiza-tions,governmentalandnon-governmental,inliaisonwithISOandIEC,alsotakepartinthework.Inthefieldofinformationtechnology,ISOandIEChaveestablishedajointtechnicalcommittee,ISOVECJTC1.DraftInternationalStandardsadoptedbythejointtechnicalcommitteearecirculatedtonationalbodiesforvoting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthenationalbodiescastingavote.InternationalStandardISO/IEC8877waspreparedbyJointTechnicalCommitteeISO/IECJTC1,Informationtechnology.ThissecondeditioncancelsandreplacesthefirsteditionISO8877:1987andISO8877:Amd.1:1991.AnnexesA,B,CandDofthisInternationalStandardareforinformationonly.OISO/IEC1992Allrnghtsreserved.Nopartofthispublicationmaybereproducedorutilzedinanyformorbyanymeans,electronicormechanical,includingphotocopyingormicrofilm,withoutpermissioninwritingformthepublisher.ISO/IECCopyrightoffice●CasePostale56·CH-1211Genève20·SwitzerlandPrintedinSwitzerlandnationalOroanizatonforStardardizataniIECparticipateinthedevelopmentofInternationalStandardstechnicalcommitteesestablishedbytherespectiveorganizationtoStandardsandCCITTRecommendationsaresubjectrevision,andpartiestoagreementsbasedonINTERNATIONALSTANDARDISO/IEC8877:1992(E)Informationtechnology—Telecommunicationsandinformationexchangebetweensystems—InterfaceconnectorandcontactassignmentsforISDNBasicAccessInterfacelocatedatreferencepointsSandT1ScopeThisInternationalStandardspecifiesthe8-polecon-nector(plugandjack)andtheassignmentsofpoles/contactsforuseinphysicalinterfacesofInte-gratedServicesDigitalNetwork(ISDN)basicaccessarrangements.Thesephysicalinterfacesmaybelo-catedatreferencepointsSandTbetweenTEsandNTsandbetweenNT1sandNT2sandshallconformtoCCITTRecommendation1.430.ThisInternationalStandardalsospecifiesthere-quirementsforISDNbasicaccesscordsforusewithTEsthatconformwithRecommendation1.430,wherethespecificationoftheTEcallsfortheuseofsuchacord.CCITTRecommendation1.430requiresplugsandjacksonequipmentconnectingcordsandinterfacecablesasshowninfigure2/1.430ofthatRecommendation(alsoseeannexA).ForthepurposeofthisInternationalStandard,whenviewedfromanNT1,anNT2maybeconsideredtobeaTE.NOTE-ThisInternationalStandardspecifiesconnectordimensionsbutonlythosetoensuremateabilityoftheplugandjack.CompletedetailedspecificationsoftheplugsandjacksandallotherdimensionsarespecifiedinIEC603-7(seeannexD)2NormativereferencesThefollowingInternationalStandardsandCCITTRecommendationscontaincertainprovisionsthat,throughreferenceinthistext,constituteprovisionsofthisInternationalStandard.Atthetimeofpublication,thee...