DD ENV 41213-1-1993 信息系统互连.虚拟终端.基础级.A模式远程登录.虚拟终端服务

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【英文标准名称】:SeallessRotodynamicPumpsforNomenclature,Definitions,Application,Operation,andTest
【原文标准名称】:无密封离心泵的术语,定义,应用,操作和测试
【标准号】:ANSI/HI5.1-5.6-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:离心泵;定义;命名法;操作;抽油装置;泵
【英文主题词】:Centrifugalpumps;Definitions;Nomenclature;Operation;Pumpinginstallation;Pumps
【摘要】:Thisstandardcoverstypesandnomenclature,definitions,designandapplication,installation,operationandmaintenance,andtestofseallessrotodynamicpumpsdrivenbycannedmotorsormagneticcouplings.Notincludedaresubmersiblewastewaterpumpsthatdonothaveexternalshaftsealsandarethereforenotsusceptibletoexternalshaftleakage.
【中国标准分类号】:J71
【国际标准分类号】:01_040_23;23_080
【页数】:
【正文语种】:英语


【英文标准名称】:Informationtechnology;Telecommunicationsandinformationexchangebetweensystems-Corporatetelecommunicationnetworks-SignallinginterworkingbetweenQSIGandH.323;Callcompletionsupplementaryservices
【原文标准名称】:信息技术.系统间电信和信息交换.企业电信网.QSIG和H.323间的信号网络互通.呼叫完成补充业务
【标准号】:ISO/IEC21991-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-06
【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】:电信;数据处理;数据传输;信息技术;补充业务;信号发送系统;网络互连;再呼叫;信息交换;通信规程;定义
【英文主题词】:Communicationprocedures;Dataprocessing;Datatransmission;Definitions;Informationinterchange;Informationtechnology;Networkinterconnection;Recalls;Signallingsystems;Supplementaryservices;Telecommunications
【摘要】:ThisInternationalStandardspecifiessignallinginterworkingbetween"QSIG"and"H.323"insupportofcallcompletionsupplementaryserviceswithinaCorporatetelecommunicationNetwork(CN)."QSIG"isasignallingprotocolthatoperatesattheQreferencepointbetweenPrivateIntegratedservicesNetworkeXchanges(PINX)withinaPrivateIntegratedServicesNetwork(PISN).TheQreferencepointisdefinedinISO/IEC11579-1.APISNprovidescircuit-switchedbasicservicesandsupplementaryservicestoitsusers.QSIGisspecifiedinotherStandards,inparticularISO/IEC11572(callcontrolinsupportofbasicservices),ISO/IEC11582(genericfunctionalprotocolforthesupportofsupplementaryservices)andanumberofstandardsspecifyingindividualsupplementaryservices.ISO/IEC13870specifiestheQSIGprotocolinsupportofcallcompletionservices."H.323"isasetofsignallingprotocolsforthesupportofvoiceormultimediacommunicationwithinapacketnetwork,inparticularapacketnetworkthatusestheInternetProtocol(IP)asitsnetworklayerprotocol(IPnetwork).H.323signallingprotocolsoperatebetweenendpointsinanIPnetwork,eitherindirectlyviaoneormoregatekeepers,ordirectly.Anendpointcanbeaterminaloragatewaytoanothernetwork.H.323isan"umbrella"recommendationreferringtovariousITU-Trecommendations,inparticularRecommendationsH.225.0andH.245(basiccommunicationcapabilities)andRecommendationH.450.1(genericfunctionalprotocolforthesupportofsupplementaryservices).RecommendationH.450.9specifiestheH.323protocolinsupportofcallcompletionservices.NOTE-H.450.9appliesonlytothe1998versionofH.323(alsoknownasH.323version2)andtolaterversions.InbothISO/IEC13870(QSIG)andITU-RecommendationH.450.9(H.323),thecallcompletionsupplementaryservicesareCompletionofCallstoBusySubscribers(SS-CCBS)andCompletionofCallsonNoReply(SS-CCNR).Thesesupplementaryservicesapplyafteracallestablishmentattempthasfailedbecausethecalleduserwasbusyornotavailable,andprovidemeanstore-establishthecallwhenthecalleduserbecomesavailable.InterworkingbetweenQSIGandH.323permitsacalloriginatingatauserofaPISNtoterminateatauserofaprivateIPnetwork,oracalloriginatingatauserofaprivateIPnetworktoterminateatauserofaPISN.Insuchascenario,thisInternationalStandardallowsthecompletionofcallswhenthecalleduserbecomesavailableafterhavingbeenbusy(SS-CCBS),orhavingnotansweredtheoriginalcall(SS-CCNR).InterworkingbetweenaPISNemployingQSIGandapublicIPnetworkemployingH.323isoutsidethescopeofthisInternationalStandard.However,thefunctionalityspecifiedinthisInternationalStandardisinprincipleapplicabletosuchascenariowhendeployedinconjunctionwithotherrelevantfunctionality(e.g.,numbertranslation,securityfunctions,etc.).ThisInternationalStandardisapplicabletoanyinterworkingunitthatcanactasagatewaybetweenaPISNemployingQSIGandaprivateIPnetworkemployingH.323.
【中国标准分类号】:M11
【国际标准分类号】:33_040_35
【页数】:23P;A4
【正文语种】:英语