【英文标准名称】:Informationtechnology-Synchronoussplittransfertypesystembus(Stbus)-Logicallayer
【原文标准名称】:信息技术同步分离传送类型总线(ST总线)逻辑层
【标准号】:ISO/IEC14576-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-12
【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/SC26
【标准类型】:()
【标准水平】:()
【中文主题词】:数据处理;数据总线;同步传输;物理层;系统总线;信息交换;信息技术;定义;定义;数据传送
【英文主题词】:Databus;Dataprocessing;Datatransfer;Definitions;Informationinterchange;Informationtechnology;Physicallayers;Synchronoustransmission;Systembus
【摘要】:ThisInternationalStandardspecifiesthelogicalspecificationsofSTbuswhichisahigh-performanceandhighlyreliablesystembus.STbusadoptsasynchronoustransfermethodwithahigh-speedclockandasplittransfermethodenablingtominimizebusholdingtimeduringonebusoperationandtouseabusefficiently.Thecontentsgiveninthisspecificationsareasfollows:a)Systembusinterfacesignalprovisions;b)Busoperationsandtransferprotocolforeachbusoperation;c)Copybackcachecoherencycontrolformaintainingconsistencybetweenasharedmemoryandacachememoryofeachprocessorinamultiprocessorsystem;d)Faultdetectionfunctionusingparitycheckandduplexconfigurationforcontrolsignals.
【中国标准分类号】:M11
【国际标准分类号】:35_160
【页数】:81P.;A4
【正文语种】:英语


【英文标准名称】:Maintainabilityofequipment-Guidetodiagnostictesting
【原文标准名称】:设备的可维护性.第5部分:诊断试验指南
【标准号】:BS6548-5-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-03-15
【实施或试行日期】:1995-03-15
【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】:验证;电子设备及元件;可靠度;质量控制;机械零部件;机械系统;失效;电气元件;电气设备;诊断试验;维修
【英文主题词】:Definition;Definitions;Electricappliances;Electricalengineering;Electrically-operateddevices;Maintainability;Reliability;Reliabilitytesting;Testing
【摘要】:ThisInternationalStandardisbeingissuedasSection4oftheguideonmaintainabilityofequipment.Itspurposeisto:-provideguidancefortheearlyconsiderationoftestabilityaspectsindesignanddevelopment;NOTE-Thedesignofanitemshouldfacilitateandsupportdiagnostictesting,andthiscanbeachievedmostefficientlybyconsideringtestabilityaspectsasearlyaspossibleinthedesignprocess,usuallyinconjunctionwithafaultmodeandeffectsanalysis(FMEA).Iflefttilllaterprojectphases,whenthedesignhasbeenfinalized,onlyverylimitedtestabilityfeaturesmaybeadded.Thesewillbelesseffectiveandwillinvolvedisproportionatelyhighcosts.-assistindeterminingeffectivetestproceduresasanintegralpartofoperationandmaintenance.NOTE-Theoperationalandmaintenanceconceptwilldependtoacertainextentonthedesignphilosophy,andthereforetoensurethatfullusecanbemadeofthediagnostictestingpossibilities,testrequirementsshouldbeincludedintheoperationalandmaintenancepolicyandbedevelopedasanintegralpartofthedesignprocess.ThissectionofIEC706isapplicabletoallcategoriesofequipmentintheirconceptandprinciples,althoughmanyofthetechniquesdescribedareclearlymoreapplicabletotheelectricalandelectronicfields,asitisinthoseareaswherethereisthegreatestopportunityforthemtobeapplied.Formechanicalequipment,thetraditionaldiagnostictechniquescanstillbeused,butheretootheadvancesbeingmadeinelectronicmeasuringandmonitoringdevicesmeanthatmuchimproveddiagnostictestingfacilitiescannowbeappliedtomechanicalcomponentsandcomplexsystems.Thismakesitparticularlyimportantthatthestructuredapproachgivenfortheprovisionofdiagnostictestingfacilitiesisusedforawiderangeoftasks.Referenceismadeinthissectiontoconditionmonitoring.Thisisafacilitywhichcloselyrelatestotheconceptscoveredinthisguideondiagnostictesting,andcannot,andshouldnot,bedissociatedfromit.However,itisnottheintentionthatfullcoverageofconditionmonitoringshouldbepartofthisstandard.
【中国标准分类号】:J04
【国际标准分类号】:29_020
【页数】:32P.;A4
【正文语种】:英语