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【英文标准名称】:Digitalradiomondiale(DRM)-Part2:Digitalradiointhebandsbelow30MHz-MethodsofmeasurementforDRMtransmitters(IEC62272-2:2007);GermanversionEN62272-2:2007,textinEnglish
【原文标准名称】:全球数字无线广播(DRM).第2部分:波段小于30MHz的数字无线广播.DRM发射机的测量方法
【标准号】:EN62272-2-2007
【标准状态】:现行
【国别】:
【发布日期】:2007-11
【实施或试行日期】:2007-11-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:频带;广播工程学;广播;特性;传播学;传播技术;定义;数字的;数字广播;数字连接;数字数据;数字工程;数字无线电链接;电气工程;英语;频率;频率范围;测量;测量技术;功率输出;无线电工程;无线电装置;无线电发射机;无线电通信;额定输出电压;声音广播发射;规范;规范(验收);通信;电信传输法;电信;传输性能
【英文主题词】:Bandoffrequencies;Broadcastengineering;Broadcasting;Characteristics;Communication;Communicationtechnology;Definition;Definitions;Digital;Digitalbroadcasting;Digitalconnections;Digitaldata;Digitalengineering;Digitalradiolinks;Electricalengineering;Englishlanguage;Frequencies;Frequencyranges;Measurement;Measuringtechniques;Poweroutput;Radioengineering;Radiosystems;Radiotransmitters;Radiocommunication;Ratedoutputpower;Sound-broadcastingemissions;Specification;Specification(approval);Telecommunication;Telecommunicationtransmissionmethods;Telecommunications;Transmissionperformance;Transmissionperformances
【摘要】:
【中国标准分类号】:M74
【国际标准分类号】:33_170
【页数】:22P.;A4
【正文语种】:英语


【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part5-3:Applicationlayerservicedefinition—Type3elements
【原文标准名称】:工业通讯网络.现场总线规范.应用层服务定义.3型元件
【标准号】:BSEN61158-5-3-2008
【标准状态】:作废
【国别】:英国
【发布日期】:2008-06-30
【实施或试行日期】:2008-06-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:应用层;应用;总线系统;总线;电路网络;通信;计算机应用;计算机控制;控制;控制设备;控制系统;控制工艺学;数据总线;数据通信;数据交换;数据传输线;数据连接系统;数据网络;数据处理;数据服务;数据传送;数据传输控制规程;定义;数字的;数字数据;数字工程;电子数据处理;电气工程;电子仪器;电子系统;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口(数据处理);开放系统互连;操作技术;OSI;过程控制工程;服务;规范;规范(验收);传输媒质
【英文主题词】:Applicationlayer;Applications;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Computerapplications;Computerizedcontrol;Control;Controlequipment;Controlsystems;Controltechnology;Databus;Datacommunication;Dataexchange;Dataline;Datalinksystem;Datanetwork;Dataprocessing;Dataservices;Datatransfer;Datatransmissioncontrolprocedures;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;Processcontrolengineering;PROFIBUS;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:Thisstandardisoneofaseriesproducedtofacilitatetheinterconnectionofautomationsystemcomponents.Itisrelatedtootherstandardsinthesetasdefinedbythe“three-layer”fieldbusreferencemodeldescribedinIEC/TR61158-1.Thissub-partcontainsmaterialspecifictoType3fieldbus.Theprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualapplicationlayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofapplicationlayerprotocolsfortimecriticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ItisthislatterobjectivewhichgivesrisetothediversityofservicesstandardizedasthevariousTypesofIEC61158,andthecorrespondingprotocolsstandardizedinsubpartsofIEC61158-6.ThisspecificationmaybeusedasthebasisforformalApplicationProgramming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.1.4ConformanceThisstandarddonotspecifyindividualimplementationsorproducts,nordotheyconstraintheimplementationsofapplicationlayerentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisapplicationlayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofconformingapplicationlayerprotocolsthatfulfillanygivenTypeofapplicationlayerservicesasdefinedinthispartofIEC61158.
【中国标准分类号】:L79
【国际标准分类号】:35_100_70;35_160;35_240_50
【页数】:442P.;A4
【正文语种】:英语