DIN VDE 0860-1989 家用及类似用途电器设备及附件交流电源的安全规程

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下一篇: DIN 44986-2-1989 电动洗涤机.家用洗物干燥机.筒式干燥机.使用性能.检验

标准名称：	铁路货车耐大气腐蚀冷弯型钢 第4部分:棚车门框
英文名称：	Railway freight car’s atmospheric corrosio resisting cold formed steel section
中标分类：	铁路 >> 铁路车辆 >> 铁路货车
ICS分类：
发布部门：	中华人民共和国铁道部
发布日期：	2003-03-12
实施日期：	2003-09-01
首发日期：
作废日期：
主管部门：	中华人民共和国铁道部
提出单位：	铁道部标准计量研究所
归口单位：	铁道部标准计量研究所
起草单位：	铁道部标准计量研究所、齐齐哈尔铁路车辆(集团)有限责任公司、武钢集团汉口
起草人：	高俊莉、朱梅、卢静、朱少文、张斌
出版社：	中国铁道出版社
出版日期：	2003-09-01
页数：	6页

本部分 规定铁道棚车门框耐大气腐蚀冷弯型钢(以下简称棚车门框冷弯型钢)截面尺寸、技术要求、试验方法、检验规则、包装、标志及质量证明书等内容。
本部分适 用于冷轧钢带在连续辊式冷弯机组上生产的冷弯型钢。不适用于拉拔、冲压、弯折等方式生产的型钢。

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【英文标准名称】:Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-Corporatetelecommunicationnetworks;SignallinginterworkingbetweenQSIGandH.323;Basicservices
【原文标准名称】:信息技术.远程通信及系统间的信息交换.通用通信网络.QSIG和H.323间的信令互动.基本业务
【标准号】:ISO/IEC23289-2002
【标准状态】:现行
【国别】:国际
【发布日期】:2002-12
【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】:QSIG;电路网络;补充业务;电信设备;远程通信;信号传输;通信网;信息交换;电信;信息技术;网络互连
【英文主题词】:Circuitnetworks;Communicationnetworks;Communicationservice;Informationinterchange;Informationtechnology;Networkinterconnection;QSIG;Signaltransmission;Supplementaryservices;Telecommunication;Telecommunications
【摘要】:ThisInternationalStandardspecifiessignallinginterworkingbetween"QSIG"and"H.323"insupportofbasicserviceswithinacorporatetelecommunicationnetwork(CN)."QSIG"isasignallingprotocolthatoperatesattheQreferencepointbetweenPrivateIntegratedservicesNetworkeXchange(PINX)withinaPrivateIntegratedServicesNetwork(PISN).TheQreferencepointisdefinedinISO/IEC11579-1.APISNprovidescircuit-switchedbasicservicesandsupplementaryservicestoitsusers.QSIGisspecifiedinotherInternationalStandards,inparticularISO/IEC11572(callcontrolinsupportofbasicservices)."H.323"isasetofsignallingprotocolsforthesupportofvoiceormultimediacommunicationwithinapacketnetwork,inparticularapacketnetworkthatusestheInternetProtocol(IP)asitsnetworklayerprotocol(IPnetwork).H.323signallingprotocolsoperatebetweenendpointsinanIPnetwork,eitherindirectlyviaoneormoregatekeepers,ordirectly.Anendpointcanbeaterminaloragatewaytoanothernetwork.H.323isan"umbrella"recommendationreferringtovariousITU-Trecommendations,inparticularrecommendationsH.225.0andH.245(basiccommunicationcapabilities).ThisInternationalStandardspecifiessignallinginterworkingforbasicservicesthatprovideabidirectionaltransfercapabilityforspeech,DTMF,facsimileandmodemmediabetweenaPISNemployingQSIGandaprivateIPnetworkemployingH.323.ThisInternationalStandardspecifiesrequirementsforestablishinguserinformation(audio)connectionsbetweenthePISNandtheIPnetwork,butprotocolsfortransmittingaudiointheIPnetworkandforsignallinginordertoestablishandclosedownaudiotransmissionintheIPnetworkareoutsidethescopeofthisInternationalStandard.SupplementaryservicesareoutsidethescopeofthisInternationalStandard.InterworkingbetweenQSIGandH.323permitsacalloriginatingatauserofaPISNtoterminateatauserofaprivateIPnetwork,oracalloriginatingatauserofaprivateIPnetworktoterminateatauserofaPISN.InterworkingbetweenaPISNemployingQSIGandapublicIPnetworkemployingH.323isoutsidethescopeofthisInternationalStandard.However,thefunctionalityspecifiedinthisInternationalStandardisinprincipleapplicabletosuchascenariowhendeployedinconjunctionwithotherrelevantfunctionality(e.g.,numbertranslation,securityfunctions,etc.).AlthoughtwosuchgatewayscanoperateaspeersoneithersideofanIPnetwork(wherebytheIPnetworkprovidesinterconnectionbetweentwoPISNs),specialsupportforthissituation(e.g.,tunnellingofQSIGinformationthroughtheIPnetwork)isoutsidethescopeofthisInternationalStandard.AlthoughtwosuchgatewayscanoperateaspeersoneithersideofaPISN(wherebythePISNprovidesinterconnectionbetweentwoIPnetworks),specialsupportforthissituation(e.g.,tunnellingofH.323informationthroughthePISN)isoutsidethescopeofthisInternationalStandard.ThisInternationalStandardisapplicabletoanyinterworkingunitthatcanactasagatewaybetweenaPISNemployingQSIGandaprivateIPnetworkemployingH.323.
【中国标准分类号】:M11
【国际标准分类号】:35_110
【页数】:39P;A4
【正文语种】:英语