欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ISO IEC 14474-1998 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Functional requi.pdf

    • 资源ID:1256831       资源大小:127.75KB        全文页数:28页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ISO IEC 14474-1998 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Functional requi.pdf

    1、BC Referencenumbe r ISO/IEC14474:1998(E) INTERNATIONAL STANDARD ISO/IEC 14474 Firstedition 19981215 Informationtechnology Telecommunicationsandinformation exchangebetweensystemsPrivate IntegratedServicesNetworkFunctional requirementsforstaticcircuitmode interPINXconnections Technologiesdelinformatio

    2、nTlcommunicationsetchange dinformationentresystmesRseauprivintgrationdeservices ExigencesfonctionnellespourlesconnexionsinterPINXenmodecircuit statiqueISO/IEC14474:1998(E) ISO/IEC1998 Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinany formorbyanymeans,el

    3、ectronicormechanical,includingphotocopyingandmicrofilm,withoutpermissionin writingfromthepublisher. ISO/IECCopyrightOfficeCasepostale56CH1211Genve20Switzerland PrintedinSwitzerland ii Foreword ISO(theInternationalOrganizationforStandardization)andIEC(theInternational ElectrotechnicalCommission)formt

    4、hespecializedsystemforworldwidestandardization. NationalbodiesthataremembersofISOorIECparticipateinthedevelopmentof InternationalStandardsthroughtechnicalcommitteesestablishedbytherespective organizationtodealwithparticularfieldsoftechnicalactivity.ISOandIECtechnical committeescollaborateinfieldsofm

    5、utualinterest.Otherinternationalorganizations, governmentalandnongovernmental,inliaisonwithISOandIEC,alsotakepartinthe work. Inthefieldofinformationtechnology,ISOandIEChaveestablishedajointtechnical committee,ISO/IECJTC1.DraftInternationalStandardsadoptedbythejointtechnical committeearecirculatedton

    6、ationalbodiesforvoting.PublicationasanInternational Standardrequiresapprovalbyatleast75%ofthenationalbodiescastingavote. InternationalStandardISO/IEC14474waspreparedbyJointTechnicalCommittee ISO/IECJTC1, Informationtechnology,SubcommitteeSC6, Telecommunicationsand informationexchangebetweensystems.

    7、AnnexAformsanintegralpartofthisInternationalStandard.INTERNATIONALSTANDARD ISO/IEC ISO/IEC14474:1998(E) 1 InformationtechnologyTelecommunicationsandinformationexchange betweensystemsPrivateIntegratedServicesNetworkFunctional requirementsforstaticcircuitmodeinterPINXconnections 1.Scope ThisInternatio

    8、nalStandardisapartofthefunctionalrequirementsforthePrivateIntegratedServicesNetwork(PISN) anddefinesthefunctionsandproceduresthatarerequiredbyPrivateIntegratedServicesNetworkexchanges(PINXs) andtheinterveningnetwork(IVN)inordertoestablishInterPINXConnections(IPC).TheIPCisusedforthetransfer ofsignall

    9、inganduserinformationbetweenPINXs. ThePrivateSignallingSystemNo.1(PSS1)asdefinedinISO/IEC11572and11574definesthesignallingprocedures andprotocolforcallcontrolbetweenPINXsattheQreferencepoint.Theseproceduresareindependentofthetypesof IVNs,calledscenariosusedtointerconnectthePINXs.ISO/IECTR14475descri

    10、bestheuseofvarioustypesofIVNs whichprovidetheinterconnectionsofPINXs. InordertoconnectaPINXtoanotherPINX,mappingfunctionsarerequiredtoadaptthespecificinterfacesattheC referencepointtotheapplicationattheQreferencepoint.Assuch,mappingfunctionsprovideforphysicaladaptation totheinterfaceattheCreferencep

    11、oint.Mappingfunctionsalsoprovideforthemappingofuserchannelsand signallinginformationattheQreferencepointtotheappropriatechannelsortimeslotsattheCreferencepoint.TheC andQreferencepointsaredefinedinISO/IEC115791. ThetypesofinterfacesattheCreferencepointcoveredbythisInternationalStandardare: 1 1544kbit

    12、/sunstructureddigitalleasedline 2 1544kbit/sstructureddigitalleasedline 3 2048kbit/sunstructureddigitalleasedline 4 2048kbit/sstructureddigitalleasedline 5 64kbit/sunrestricteddigitalleasedline 6 1544kbit/sISDNPrimaryRateusernetworklayer1interface 7 2048kbit/sISDNPrimaryRateusernetworklayer1interfac

    13、e 8 ISDNBasicRateusernetworklayer1interface AttheQreferencepointthemappingsprovidea64kbit/sserviceforuserchannelsandapacketmodeserviceforthe signallingchannel.Theappliedmappingisastaticmapping,i.e.thereisafixedrelationshipbetweenuserand signallingchannelsattheQreferencepointandthetimeslotsoftheinter

    14、faceattheCreferencepoint.Anychangesare subjecttoadministrativeactions. ThisInternationalStandardspecifiesPINXmappingfunctionsbetweentheQreferencepointandtheCreferencepoint forIVNswhichprovideeitherdedicatedorsemipermanent,nonuseractivation,circuitmodeIPCs.ThededicatedIPC istheconnectionpermanentlyes

    15、tablished,usuallyforthedurationofacontractualperiod.ThesemipermanentIPCis theconnectionwhoseresourcesarereservedforspecifiedtimesduringacontractualperiod.ThesemipermanentIPCis establishedbymanagementcontrolwithorwithoutuseractivations.InthisInternationalStandard,thesemipermanent IPCestablishedbymana

    16、gementcontrolwithuseractivationisoutsidethescope. TheIVNcanbeadedicatedphysicallink,dedicatedtransmissionsystemoracrossconnectsystem,orsemipermanent connectionsystem.IVNswhichincludeinversemulitlexertechniques(e.g.channelaggregationinaccordancewith ISO/IEC13871)arecoveredbythisInternationalStandards

    17、ofarastheysupportoneoftheinterfaceslistedabove. ThisInternationalStandardalsospecifiesmappinginformation.AtbothsidesofthePINX,mappinginformationis requiredtoadministerthescenarios. ThisInternationalStandardisapplicabletoPINXswhichcanbeinterconnectedtoformaPrivateIntegratedServices Network(PISN)andwh

    18、ichsupportsignallingprotocolsattheQreferencepoint.ISO/IEC14474:1998(E) ISO/IEC 2 2.Conformance InordertoconformtothisInternationalStandard,aPINXshallsatisfytherequirementsidentifiedintheProtocol ImplementationConformanceStatement(PICS)proformainannexA. 3.Normative References Thefollowingstandardscon

    19、tainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthis InternationalStandard.Atthetimeofpublication,theeditionsindicatedwerevalid.Allstandardsaresubjectto revision,andpartiestoagreementsbasedonthisInternationalStandardareencouragedtoinvestigatethepossibilityof applyingthemostrecen

    20、teditionsofthestandardsindicatedbelow.MembersofIECandISOmaintainregistersof currentlyvalidInternationalStandards. 1 ISO/IEC115791:1994,InformationtechnologyTelecommunicationsandinformationexchangebetween systemsPrivateintegratedservicesnetworkPart1:ReferenceconfigurationforPISNExchanges(PINX) . 2 IS

    21、O/IECTR14475:1996, InformationtechnologyTelecommunicationsandinformationexchangebetween systemsPrivateIntegratedServicesNetworkArchitectureandScenariosforPrivateIntegratedServices Networking. 3 ISO/IEC11572:1997, InformationtechnologyTelecommunicationsandinformationexchangebetweensystems PrivateInte

    22、gratedServicesNetworkCircuitmodebearerservicesInterexchangesignallingprocedures andprotocol . 4 ISO/IEC11574:1994, InformationtechnologyTelecommunicationsandinformationexchangebetweensystems PrivateIntegratedServicesNetworkCircuitmode64kbit/sbearerservicesServicedescription, functionalcapabilitiesan

    23、dinformationflows . 5 ITUTRec.G.703(1991), Physical/electricalcharacteristicsofhierarchicaldigitalinterface . 6 ITUTRec.G.704(1995), Synchronousframestructuresusedatprimaryandsecondaryhierarchicallevels . 7 ITUTRec.G.706(1991), Framealignmentandcyclicredundancycheck(CRC)proceduresrelatingtobasic fra

    24、mestructuresdefinedinRecommendationG.704 . 8 ITUTRec.I.431(1993), PrimaryrateusernetworkinterfaceLayer1specification . 9 ITUTRec.I.430(1995), BasicrateusernetworkinterfaceLayer1specification . 10 ITUTRec.I.412(1988), ISDNusernetworkinterfacesInterfacestructuresandaccesscapabilities . 11 ITUTRec.I.14

    25、0(1993), AttributeTechniqueforthecharacterizationofTelecommunicationServicessupported byanISDNandNetworkCapabilitiesofanISDN . 12 ITUTRec.I.210(1993), PrinciplesofTelecommunicationServicesSupportedbyandISDNandtheMeansto describethem . 13 ITUTRec.Q.921(1993), ISDNUserNetworkInterfaceLayer2specificati

    26、on . 14 ISO/IEC238236: 1) , InformationtechnologyVocabularyPart36:PrivateIntegratedServicesNetwork . 15 ISO/IEC13871:1995, InformationtechnologyTelecommunicationsandinformationexchangebetweensystems PrivatetelecommunicationsnetworksDigitalchannelaggregation . 1)Tobepublished.ISO/IEC ISO/IEC14474:199

    27、8(E) 3 4.Definitions ForthepurposesofthisInternationalStandard,thefollowingdefinitionsapply. 4.1External definitions PISN(PrivateIntegratedServicesNetwork) 14 PINX(PrivateIntegratedServicesNetworkExchange) 14 IVN(InterveningNetwork) 14 SW(SwitchingFunctionalgrouping) 1 MP(MappingFunctionalgrouping)

    28、1 QReferencePoint 1 CReferencePoint 1 IPC(InterPINXConnection) 14 IPL(InterPINXLink) 14 4.2Specific Definitions 4.2.1Channel Ameansofbidirectionaltransmissionofuserorsignallinginformationbetweentwopoints. 4.2.1.1Dq channel Achannelusedtoconveysignallinginformationincludingcallcontrolinformationbetwe

    29、entheQreferencepointsof twopeerPINXs. 4.2.1.2Uq channel AchannelusedtoconveyuserinformationbetweentheQreferencepointsoftwoPINXs. 4.2.2Signalling Functions 4.2.2.1 QSIG(SignallinginformationflowattheQreferencepoint) Thegenerictermdescribingthesignallinginformationflows(i.e.notaspecificsignallingproto

    30、col),withinaDq channel. 4.2.2.2 CSIG(SignallinginformationflowattheCreferencepoint) Thegenerictermdescribingaccesssignallinginformationflows(i.e.notaspecificsignallingprotocol),betweenaPINX andanIVN,attheCreferencepoint. 4.3 SymbolsandAbbreviations B Timeslotprovidingof64kbit/sbearercapability C CRe

    31、ferencePoint Dq Dqchannel IPC InterPINXConnection IVN InterveningNetwork MP MappingFunctionalgrouping PINX PrivateIntegratedServicesNetworkExchange Q QReferencePoint QAB IndicatesaQreferencepointthatisassociatedwiththeinterconnectionbetweenPINXAandB QAC IndicatesaQreferencepointthatisassociatedwitht

    32、heinterconnectionbetweenPINXAandC. SW SwitchingFunctionalgrouping Uq UqchannelISO/IEC14474:1998(E) ISO/IEC 4 5.Introduction FortheconceptofmappingfunctionreferenceismadetoISO/IECTR144752. 5.1 TypeofIVN TheIVNssupportingpermanentcircuitmodeIPCsareasfollows: DedicatedTransmissionSystem SemiPermanently

    33、establishedchannelsofcircuitmodenetwork 5.1.1 DedicatedTransmissionSystem TheIPCisprovidedbyatransmissionmechanism.TheIPCisestablishedbymanagement,seeFigure5.1. Q nUq+Dq PINX Q nUq+Dq PINX MP MP CC PhysicalMedium Figure5.1DedicatedPhysicalmedium ThetransmissionMediumcanprovideunstructuredorchanneliz

    34、edbitstream. 5.1.2SemiPermanent Connection ThededicatedorthesemipermanentIPCsareprovidedbyasemipermanentcircuitmodemechanismintheintervening network,inwhichtheIPCsarepermanentlyestablishedbymanagementcontrolwithorwithoutuseractivation.The channelsonanIPC(signallinganduserinformationchannelsbetweenas

    35、sociatedtwoPINXs)attheQreferencepoint aremappedontopreassignedtimeslotsprovidingof64kbit/sbearercapabilityoftheIVNaccessattheCreference point. ThisscenarioprovidesmultipleIPCsleadingtodifferentPINXs. (m+n+2)B (m+1)B (n+1)B PINXA Q AB Q AC mU Q+D QAB nU Q+D QAC MP nU Q+D QAC PINXC MP PINXB Q AB mU Q+

    36、D QAB MP Q AC C C C X IVN Figure5.2SemipermanentConnection 5.2 IVNInterfacetypes TheTable1showsthecategorizationofthescenariotypeofpermanentcircuitmodeinterPINXconnections.It categorizestheIVNtypesintermsofthecharacteristicsofthedigitalleasedlinefortheprovisionofIPC.IVNinterface typesareonlystandard

    37、izedincertainregions.Theinternationalavailabilityofthefullbitstreamisoutsidethescopeof thisInternationalStandard.ISO/IEC ISO/IEC14474:1998(E) 5 Table5.1IVNInterfaceTypes IVNInterfaceTypes Structurization Note 1 Unstructured1544kbit/sdigitalleasedline 2 Structured1544kbit/sdigitalleasedline 1536kbit/

    38、stimeslots Note1 3 Structured1544kbit/sdigitalleasedline 24x64kbit/stimeslots Note3 4 Unstructured2048kbit/sdigitalleasedline 1984kbit/stimeslots 5 Structured2048kbit/sdigitalleasedline 1984kbit/stimeslots Note2 6 Structured2048kbit/sdigitalleasedline 31x64kbit/stimeslots Note3 7 64kbit/sdigitalleas

    39、edline 64kbit/stimeslot 8 ISDN1544kbit/sPrimaryRateInterface AccordingtoITUTRec.I.431 9 ISDN2048kbit/sPrimaryRateInterface AccordingtoITUTRec.I.431 10 ISDNBasicRateInterface AccordingtoITUTRec.I.430 Note1: ThistypeofleasedlinethatisusedtointerconnectPINXsisadigitaltransmissionlinkprovidingprimaryrat

    40、e(1544 kbit/s)capability.Inthismappingtype,thederivedchannelattheQreferencepointshallbemappedontothetime slottheinformationtransferrateofwhichisat64kbit/swithoutalterationbetweenthePINXs. Note2: InEuropeandAustraliaitispossibletoget2048kbit/sleasedlinesintwodifferentways.Alternative1is unstructuredv

    41、ersion,whichprovidesunstructuredbitstreamat2048kbit/s(thereisnochannelisation).Alternative2 isachannelizedversioninwhichtimeslot0isnotnecessarilytransparent.Normallyhowevertheleasedlineoffers theremaining31channelssothattheycanbeusedas1984kbit/soras31x64kbit/s. Forthecaseofanunstructuredleasedline,i

    42、tshouldbeconsideredasoneIPCat2048kbit/s.Onepossiblemapping istomapitto31x64kbit/schannels.Forthestructuredcaseespeciallywhenusedwithacrossconnecttheinterface shouldbeconsideredasproviding31IPCscashat64kbit/s. Note3: Itisamakeofsubscription,whileall64kbit/stimeslotsarethoughconnectedendtoend.Timeslotsequence integrityisguranteed. 5.3 IPCBearerCapabilities IPCBearerCapabilitiesdependonIVNInterfacedescribinginthetablebelow. IneachIVNtypes,thebearercapabilitiesshallbetheassumeinbothPINXsforanygivenchannelattheQreference point.While,asadefau


    注意事项

    本文(ISO IEC 14474-1998 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Functional requi.pdf)为本站会员(吴艺期)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开