【英文标准名称】:Electricitymetering-Dataexchangeformeterreading,tariffandloadcontrol-Directlocaldataexchange
【原文标准名称】:电度表.电度表读数,计价和负载控制的数据交换.直接地方性数据交换
【标准号】:BSEN62056-21-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-07-17
【实施或试行日期】:2002-07-17
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:会计;测量仪器;数据传输;计算机硬件;仪表读数;定义;定义;电气工程;数据传送;协议;税控制;规范(验收);特性;数据交换;传输协议;电流;性能;电能;数据网络;电度表;电度表;;能量测量;负载控制
【英文主题词】:Accounts;Computerhardware;Connections;Counters;Currentmeters;Currents;Datacommunication;Dataexchange;Datalinksystem;Datanetwork;Datatransfer;Datatransmission;Definition;Definitions;Distributionofelectricity;Electricenergy;Electricalengineering;Electricitymeter;Electricitysupplymeters;ElectronicDataInterchanges;Energymeasurement;Englishlanguage;Fixed;Informationexchange;Loadcontrol;Localareanetworks;Measuringinstruments;Meterreading;Mobile;Performance;Physicalproperties;Properties;Protocols;PSTN;Specification(approval);Tariff;Tariffcontrol;Tariffmeteringdevices;Telecounters;Transmissionprotocol
【摘要】:ThispartofIEC62056describeshardwareandprotocolspecificationsforlocalmeterdataexchange.Insuchsystems,ahand-heldunit(HHU)oraunitwithequivalentfunctionsisconnectedtoatariffdeviceoragroupofdevices.Theconnectioncanbepermanentordisconnectableusinganopticalorelectricalcoupling.Anelectricalinterfaceisproposedforusewithapermanentconnection,orwhenmorethanonetariffdeviceneedstobereadatonesite.TheopticalcouplershouldbeeasilydisconnectabletoenabledatacollectionviaanHHU.Theprotocolpermitsreadingandprogrammingoftariffdevices.Itisdesignedtobeparticularlysuitablefortheenvironmentofelectricitymetering,especiallyasregardselectricalisolationanddatasecurity.Whiletheprotocoliswell-defined,itsuseandapplicationarelefttotheuser.Thisstandardisbasedonthereferencemodelforcommunicationinopensystems.Itisenhancedbyfurtherelementssuchasanopticalinterface,protocolcontrolledbaudrateswitchover,datatransmissionwithoutacknowledgementofreceipt.Theprotocoloffersseveralmodesforimplementationinthetariffdevice.TheHHUorequivalentunitactsasamasterwhilethetariffdeviceactsasaslaveinprotocolmodesAtoD.InprotocolmodeE,theHHUactsasaclientandthetariffdeviceactsasaserver.Asseveralsystemsareinpracticalusealready,particularcarewastakentomaintaincompatibilitywithexistingsystemsand/orsystemcomponentsandtheirrelevantprotocols.
【中国标准分类号】:N22
【国际标准分类号】:35_240_60;91_140_50
【页数】:74P.;A4
【正文语种】:英语


【英文标准名称】:Aerospaceseries-Connectors,optical,rectangular,modular,multicontact,1,25diameterferrule,withremovablealignmentsleeveholder-Technicalspecification
【原文标准名称】:航空航天系列.带可移除调整衬套固定器、1.25直径套圈、多触点、矩形模数光学连接器.技术规范
【标准号】:BSEN4639-001-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-03-31
【实施或试行日期】:2008-03-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:验收规范;航空航天运输;航空运输;光缆;连接器的连接件;连接器;触点;交货条件;尺寸;电缆;电插头;套圈;固定件;检验;材料;光学连接器;特性;质量保证;矩形连接器;航天运输;规范(验收);测试
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:49_060
【页数】:26P;A4
【正文语种】:英语