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1、PDCEN/TS13149-9:2020Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systemsPart9:Timeservicebsi.PDCEN/TS13149-9:2020Pub1.isheddocumentNationa1.forewordThisPub1.ishedDocumentistheUKimp1.ementationofCEN/TS13149-92020.TheUKparticipationinitspreparationwasentrustedtoTechnica1.CommitteeEP1./278,Intc1.
2、1.igcnttransportsystems.A1.istoforganizationsrepresentedonthiscommitteecanbeobtancdonrequesttoitssecretary.Thispub1.icationdocsnotpurporttoinc1.udea1.1.thenecessaryprovisionsofacontract.Usersarcresponsib1.eforitscorrectapp1.ication.TheBritishStandardsInstitution2020Pub1.ishedbyBSIStandards1.imited20
3、20ISBN9780S39052794ICS35.240.60;43.040.15Comp1.iancewithaBritishStandardcannotconferimmunityfrom1.ega1.ob1.igations.ThisPub1.ishedDocumentwaspub1.ishcdundertheauthorityoftheStandardsPo1.icyandStrategyCommitteeon30June2020.Amcndmcnts/corrigcndaissuedsincepub1.icationDateTextaffectedTECHNICA1.SPECIHCT
4、IONSPECinCATIONTECHNIQUEMay2020TechnischeSpezifikationICS35240.60:43.040.15Eng1.ishVersionPub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systems-Part9:TimeserviceTransportpub1.ic-SyxtmcsdePuni1.cationetdeOffcnUichcrVcricchr-Phnungs*undcontr1.cdesv6hicu1.esrouticnPartic9:ServiceSteucrungdysteme(u
5、rStnRcnhhrzcugcTei1.9:horaire*ZeitdienstThisTechnica1.Spedncauon(CEN/TS)wasapprovedbyCENon8DecemberZO19(orprovisiona1.app1.ication.Theperiodofva1.idityofthisCEN/TSU1.imitedinitia1.1.ytothre44444444444TimeServiceFunctiona1.Scope/Description&Usc-Cascs_Architecture&TransportPrOtOCOIServicePub1.icationP
6、ub1.ishedScrviccName7SRVRecord7TXTrecord一一一一一一一一“一一一一“一一一一一一一一一一一一一一一一一一一一一一“一一一一”一一一一一一一7Structureoftheservice8Overviewofoperations8Detai1.edDescriptionofdatastructures.一一一一8Updaterate-8Bib1.iographyEuropeanforewordThisdocument(CEN/TS13149-9:2020)hasbeenpreparedbyTechnica1.CommitteeCEN/TC278Inte1.1
7、.igenttransportsystems*,thesecretariatofwhichishe1.dbyNEN.Attentionisdrawntothepossibi1.itythatsomeofthedementsofthisdocumentmaybethesubjectofpatentrights.CENsha1.1.notbehe1.dresponsib1.eforidentifyinganyora1.1.suchpatentrights.ThisdocumentisPart9ofascriesofEuropeanStandardsandTechnica1.Specificatio
8、nsthatinc1.udes:CEN/TS13149-7,Pub1.ictransport-Roadvehic1.eSChedU1.iMandcontro1.systems-Part7:Systemandnetworkarchitecture;CEN/TS13149-8,Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systems-PartSPhysica1.1.ayerforIPcommunication-CEN/TS13149-9,Pubhctransport-Roadvehic1.eschedu1.ingandcontro1.sy
9、stems-Part9:Timeservicethisdocument;CEN/TS13149-10,Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systems-Part10:1.ocationservicecurrent1.yatvotingstage;CEN/TS13149-11,Pub1.ictransport-Roadvehic1.eschedu1.ingandntro1.systems-Part11:Vehic1.ep1.atforminterfaceservicecurrent1.yatvotingstage).Acrdin
10、gtotheCEN/CENE1.ECInterna1.Regu1.ations,thenationa1.standardsorganisationsofthefo1.1.owingcountriesarcboundtoannouncethisTechnica1.Specification:Austria,Be1.gium,Bu1.garia,Croatia,Cyprus,CzechRepub1.ic,Denmark,Estonia,Fin1.and,France,Germany,Greece,Hungary,Ice1.and,Ire1.and,Ita1.y,1.atvia,1.ithuania
11、.1.uxembourg,Ma1.ta.Nether1.ands,Norway,Po1.and,Portuga1.,Repub1.icofNorthMacedonia,Romania,Serbia,S1.ovakia,S1.ovenia,Spain,Sweden,Switzer1.and,TurkeyandtheUnitedKingdom.introductionThisTechnica1.SpcciRcationisPart9ofaseriesofEuropeanStandardsandTechnica1.Specifications.Thescopeofthisseriesison-boarddatacommunicationsystemsonpub1.ictransportvehic1.es.Pub1.icTransport(PT)vehic1.eshaveanincreasingarrayofinformationandcommunicationssystems,inc1.udingticketmachines,AutomatedVe
