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【英文标准名称】:Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-PrivateIntegratedServicesNetwork-Functionalrequirementsforstaticcircuit-modeinter-PINXconnections
【原文标准名称】:信息技术系统间远程通信和信息交换专用综合业务网静态电路方式-PINX间连接的功能要求
【标准号】:ISO/IEC14474-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:规范(验收);网络互连;综合业务数字网络;信息技术;专业网;信息交换;电信;定义
【英文主题词】:Definitions;Informationinterchange;Informationtechnology;ISDN;Networkinterconnection;PINX;Privatenetworks;Specification(approval);Telecommunications
【摘要】:ThisInternationalStandardisapartofthefunctionalrequirementsforthePrivateIntegratedServicesNetwork(PISN)anddefinesthefunctionsandproceduresthatarerequiredbyPrivateIntegratedServicesNetworkexchanges(PINXs)andtheinterveningnetwork(IVN)inordertoestablishInter-PINXConnections(IPC).TheIPCisusedforthetransferofsignallinganduserinformationbetweenPINXs.ThePrivateSignallingSystemNo.l(PSS1)asdefinedinISO/IEC11572and11574definesthesignallingproceduresandprotocolforcallcontrolbetweenPINXsattheQreferencepoint.TheseproceduresareindependentofthetypesofIVNs,calledscenariosusedtointerconnectthePINXs.ISO/IECTR14475describestheuseofvarioustypesofIVNswhichprovidetheinterconnectionsofPINXs.InordertoconnectaPINXtoanotherPINX,mappingfunctionsarerequiredtoadaptthespecificinterfacesattheCreferencepointtotheapplicationattheQreferencepoint.Assuch,mappingfunctionsprovideforphysicaladaptationtotheinterfaceattheCreferencepoint.MappingfunctionsalsoprovideforthemappingofuserchannelsandsignallinginformationattheQreferencepointtotheappropriatechannelsortime-slotsattheCreferencepoint.TheCandQreferencepointsaredefinedinISO/IEC11579-1.ThetypesofinterfacesattheCreferencepointcoveredbythisInternationalStandardare:[1]1544kbit/sunstructureddigitalleasedline[2]1544kbit/sstructureddigitalleasedline[3]2048kbit/sunstructureddigitalleasedline[4]2048kbit/sstructureddigitalleasedline[5]64kbit/sunrestricteddigitalleasedline[6]1544kbit/sISDNPrimaryRateuser-networklayer1interface[7]2048kbit/sISDNPrimaryRateuser-networklayer1interface[8]ISDNBasicRateuser-networklayer1interfaceAttheQreferencepointthemappingsprovidea64kbit/sserviceforuserchannelsandapacketmodeserviceforthesignallingchannel.Theappliedmappingisastaticmapping,i.e.thereisafixedrelationshipbetweenuserandsignallingchannelsattheQreferencepointandthetimeslotsoftheinterfaceattheCreferencepoint.Anychangesaresubjecttoadministrativeactions.ThisInternationalStandardspecifiesPINXmappingfunctionsbetweentheQreferencepointandtheCreferencepointforIVNswhichprovideeitherdedicatedorsemi-permanent,non-useractivation,circuit-modeIPCs.ThededicatedIPCistheconnectionpermanentlyestablished,usuallyforthedurationofacontractualperiod.Thesemi-permanentIPCistheconnectionwhoseresourcesarereservedforspecifiedtimesduringacontractualperiod.Thesemi-permanentIPCisestablishedbymanagementcontrolwithorwithoutuseractivations.InthisInternationalStandard,thesemi-permanentIPCestablishedbymanagementcontrolwithuseractivationisoutsidethescope.TheIVNcanbeadedicatedphysicallink,dedicatedtransmissionsystemoracrossconnectsystem,orsemi-permanentconnectionsystem.IVNswhichincludeinversemulitlexertechniques(e.g.channelaggregationinaccordancewithISO/IEC13871)arecoveredbythisInternationalStandardsofarastheysupportoneoftheinterfaceslistedabove.ThisInternationalStandardalsospecifiesmappinginformation.AtbothsidesofthePINX,mappinginformationisrequiredtoadministerthescenarios.ThisInternationalStandardisapplicabletoPINXswhichcanbeinterconnectedtoformaPrivateIntegratedServicesNetwork(PISN)andwhichsupportsignallingprotocolsattheQreferencepoint.
【中国标准分类号】:L78
【国际标准分类号】:33_040_40;35_110
【页数】:24P.;A4
【正文语种】:英语