热门站点| 世界资料网 | 专利资料网 | 世界资料网论坛
收藏本站| 设为首页| 首页

SJ 51438/5-1995 PM23型接触件间距为1.905mm的印制电路插头连接器详细规范

作者:标准资料网 时间:2024-05-19 20:20:05  浏览:8964   来源:标准资料网
下载地址: 点击此处下载
基本信息
标准名称:PM23型接触件间距为1.905mm的印制电路插头连接器详细规范
英文名称:Connectors,plug Type PM23,for printed circuit (1.905mm spacing) detail specification for
中标分类: 公路、水路运输 >> 公路、水路运输综合 >> 技术管理
发布日期:1995-05-25
实施日期:1995-12-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:13页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: 公路 水路运输 公路 水路运输综合 技术管理
下载地址: 点击此处下载
【英文标准名称】:Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-Corporatetelecommunicationnetworks-SignallinginterworkingbetweenQSIGandSIP-Basicservices
【原文标准名称】:信息技术.系统间的远程通信和信息交换.联合远程通信网.程控交换机组网的全球标准和会话发起协议间的信令互通.基本业务
【标准号】:ISO/IEC17343-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-11
【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/SC6
【标准类型】:()
【标准水平】:()
【中文主题词】:通信网;电信设备;数据交换;定义;信息交换;信息技术;网络互连;协议;程控交换机组网的全球标准;会话发起协议;信号传输;信号发送系统;规范(验收);补充业务;远程通信;传输协议
【英文主题词】:Communicationnetworks;Communicationservice;Dataexchange;Definition;Definitions;Informationinterchange;Informationtechnology;Networkinterconnection;Protocols;QSIG;SessionInitiationProtocol;Signaltransmission;Signallingsystems;SIP;Specification(approval);Supplementaryservices;Telecommunication;Telecommunications;Transmissionprotocol
【摘要】:ThisInternationalStandardspecifiessignallinginterworkingbetweenQSIGandtheSessionInitiationProtocol(SIP)insupportofbasicserviceswithinacorporatetelecommunicationnetwork(CN)(alsoknownasenterprisenetwork).QSIGisasignallingprotocolthatoperatesbetweenPrivateIntegratedservicesNetworkeXchanges(PINX)withinaPrivateIntegratedServicesNetwork(PISN).APISNprovidescircuit-switchedbasicservicesandsupplementaryservicestoitsusers.QSIGisspecifiedinotherStandards;inparticular[2](callcontrolinsupportofbasicservices),[3](genericfunctionalprotocolforthesupportofsupplementaryservices),andanumberofstandardsspecifyingindividualsupplementaryservices.NOTEThenameQSIGwasderivedfromthefactthatitisusedforsignallingattheQreferencepoint.TheQreferencepointisapointofdemarcationbetweentwoPINXs.SIPisanapplication-layerprotocolforestablishing,terminating,andmodifyingmultimediasessions.ItistypicallycarriedoverIP[15],[16].Telephonecallsareconsideredatypeofmultimediasessionwherejustaudioisexchanged.SIPisdefinedin[10].Asthesupportoftelephonywithincorporatenetworksevolvesfromcircuit-switchedtechnologytoInternettechnology,thetwotechnologieswillcoexistinmanynetworksforaperiod,perhapsseveralyears.Therefore,thereisaneedtobeabletoestablish,modify,andterminatesessionsinvolvingaparticipantintheSIPnetworkandaparticipantintheQSIGnetwork.SuchcallsaresupportedbygatewaysthatperforminterworkingbetweenSIPandQSIG.ThisInternationalStandardspecifiesSIP-QSIGsignallinginterworkingforbasicservicesthatprovideabidirectionaltransfercapabilityforspeech,DTMF,facsimile,andmodemmediabetweenaPISNemployingQSIGandacorporateIPnetworkemployingSIP.Otheraspectsofinterworking,e.g.,theuseofRTPandSDP,willdifferaccordingtothetypeofmediaconcernedandareoutsidethescopeofthisInternationalStandard.Call-relatedandcall-independentsignallinginsupportofsupplementaryservicesisoutsidethescopeofthisInternationalStandard,butsupportforcertainsupplementaryservices(e.g.,calltransfer,calldiversion)couldbethesubjectoffuturework.InterworkingbetweenQSIGandSIPpermitsacalloriginatingatauserofaPISNtoterminateatauserofacorporateIPnetwork,oracalloriginatingatauserofacorporateIPnetworktoterminateatauserofaPISN.InterworkingbetweenaPISNemployingQSIGandapublicIPnetworkemployingSIPisoutsidethescopeofthisInternationalStandard.However,thefunctionalityspecifiedinthisInternationalStandardisinprincipleapplicabletosuchascenariowhendeployedinconjunctionwithotherrelevantfunctionality(e.g.,numbertranslation,securityfunctions,etc.).ThisInternationalStandardisapplicabletoanyinterworkingunitthatcanactasagatewaybetweenaPISNemployingQSIGandacorporateIPnetworkemployingSIP.
【中国标准分类号】:L78
【国际标准分类号】:33_040_35
【页数】:47P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforDeterminationofSilverinCopperConcentratesbyFlameAtomicAbsorptionSpectrometry
【原文标准名称】:用火焰原子吸收光谱测定法测定铜精矿中银的标准试验方法
【标准号】:ASTME1898-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E01.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:化学分析和测试;精矿;含量;铜;金属;矿石;银;试验方法
【英文主题词】:copperconcentrates;silvercontent
【摘要】:Intheprimarymetallurgicalprocessesusedbythemineralprocessingindustryforcopperbearingores,copperandsilverassociatedwithsulfidemineralizationareconcentratedbytheprocessofflotationforrecoveryofthemetals.Thistestmethodisintendedtobearefereemethodforthedeterminationofsilverincopperconcentrates.Itisassumedthatallwhousethisprocedurewillbetrainedanalystscapableofperformingcommonlaboratoryproceduresskillfullyandsafely.Itisexpectedthatworkwillbeperformedinaproperlyequippedlaboratoryandthatproperwastedisposalprocedureswillbefollowed.AppropriatequalitycontrolpracticesmustbefollowedsuchasthosedescribedinGuideE882.1.1Thistestmethodcoversthedeterminationofsilverintherangeof50g/gto1000g/gbyaciddissolutionofthesilverandmeasurementbyatomicabsorptionspectrophotometry.Copperconcentratesareinternationallytradedwithinthefollowingconcentrationranges:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortoitsuse.
【中国标准分类号】:D42
【国际标准分类号】:71_040_50
【页数】:5P.;A4
【正文语种】:



版权声明:所有资料均为作者提供或网友推荐收集整理而来,仅供爱好者学习和研究使用,版权归原作者所有。
如本站内容有侵犯您的合法权益,请和我们取得联系,我们将立即改正或删除。
京ICP备14017250号-1