【英文标准名称】:Medicalelectricalequipment-Particularrequirementsforsafety-Specificationforbabyincubators
【原文标准名称】:医用电气设备.安全性的特殊要求.婴儿保育箱规范
【标准号】:BSEN60601-2-19-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-06-15
【实施或试行日期】:1997-06-15
【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】:医疗技术学;电气工程;定义;名称与符号;机械安全;温度的均匀性;医疗设备;防火;辐射防护;安全要求;医用电气设备;电气保护设备;分类系统;电气设备;试验;环境条件;通风;恒温箱;作标记;温度稳定性;测定;使用说明;保护措施;电磁兼容性;电医学;安全工程;监督(认可);规范(验收);分类;电气安全;安全
【英文主题词】:Classification;Classificationsystems;Definitions;Designations;Determinations;Electricalappliances;Electricalengineering;Electricalmedicalequipment;Electricalprotectionequipment;Electricalsafety;Electromedicine;EMC;Environmentalconditions;Fireprevention;Incubator;Incubators;Inscription;Instructionsforuse;Marking;Mechanicalsafety;Medicalequipment;Medicaltechnology;Protectivemeasures;Radiationprotection;Safety;Safetyengineering;Safetyrequirements;Specification(approval);Surveillance(approval);Temperaturestability;Testing;Uniformityoftemperature;Ventilations
【摘要】:TobereadinconjunctionwithBSEN60601-1:1990
【中国标准分类号】:C39
【国际标准分类号】:11_040_10
【页数】:40P.;A4
【正文语种】:英语


【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part4-2:Data-linklayerprotocolspecification-Type2elements
【原文标准名称】:工业通信网络.现场总线规范.第4-2部分:数据链路层协议规范.2型元件
【标准号】:IEC61158-4-2-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-08
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC65C
【标准类型】:()
【标准水平】:()
【中文主题词】:总线系统;总线(数据处理);电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链层;数据连接系统;数据处理;数据设备;数据传送;定义;数字数据;数字工程;数字信号;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;工业设施;信息交换;信息处理;信息技术;接口;接口(数据处理);链路层;开放系统互连;OSI;物理层;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;传输媒质;传输协议
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definitions;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Fieldbus;Guidancesystems;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Physicallayers;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Transmissionmedia;Transmissionprotocol
【摘要】:Thedata-linklayerprovidesbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Thisprotocolprovidescommunicationopportunitiestoallparticipatingdata-linkentities,sequentiallyandinacyclicsynchronousmanner.Foregroundscheduledaccessisavailablefortime-criticalactivitiestogetherwithbackgroundunscheduledaccessforlesscriticalactivities.Deterministicandsynchronizedtransferscanbeprovidedatcyclicintervalsupto1msanddeviceseparationsof25km.Thisperformanceisadjustabledynamicallyandon-linebyreconfiguringtheparametersofthelocallinkwhilstnormaloperationcontinues.Bysimilarmeans,DLconnectionsandnewdevicesmaybeaddedorremovedduringnormaloperation.Thisprotocolprovidesmeanstomaintainclocksynchronizationacrossanextendedlinkwithaprecisionbetterthan10μs.ThisprotocoloptimizeseachaccessopportunitybyconcatenatingmultipleDLSDUsandassociatedDLPCIintoasingleDLPDU,therebyimprovingdatatransferefficiencyfordatalinkentitiesthatactivelysourcemultiplestreamsofdata.Themaximumsystemsizeisanunlimitednumberoflinksof99nodes,eachwith255DLSAPaddresses.Eachlinkhasamaximumof224relatedpeerandpublisherDLCEPs.
【中国标准分类号】:M11
【国际标准分类号】:25_04_40;35_100_20;35_110
【页数】:286P.;A4
【正文语种】:英语