ISO 9022-15-1994 光学和光学仪器.环境试验方法.第15部分:组合无规振动宽带.在干冷或干热状态下的再生性中介
作者:标准资料网 时间:2024-05-11 17:55:48 浏览:8518
来源:标准资料网
【英文标准名称】:Opticsandopticalinstruments-Environmentaltestmethods-Part15:Combinedrandomvibrationwideband;reproducibilitymedium,indryheatodercold
【原文标准名称】:光学和光学仪器.环境试验方法.第15部分:组合无规振动宽带.在干冷或干热状态下的再生性中介
【标准号】:ISO9022-15-1994
【标准状态】:作废
【国别】:国际
【发布日期】:1994-07
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC172
【标准类型】:()
【标准水平】:()
【中文主题词】:光学设备;试验;试验;环境试验;环境试验;光学;热稳定性;光学仪器;干热试验;低气温试验;振动试验
【英文主题词】:cold-weathertests;dry-heattests;environmentaltests;tests;opticalinstruments;optics;vibrationtests;thermalstability;environmentaltesting;testing;opticalequipment
【摘要】:
【中国标准分类号】:N30
【国际标准分类号】:37_020
【页数】:7P;A4
【正文语种】:英语
【英文标准名称】:StandardforSafetyforLow-VoltageFuses–Part15:ClassTFuses
【原文标准名称】:低压熔断器安全标准.第15部分:T类熔断器
【标准号】:ANSI/UL248-15-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005-08-01
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:低压熔断器;低电压;安全标准;电压;分类系统;电气安全;电气工程;设计;试验;防电击;安全要求
【英文主题词】:safetystandards;electricalsafety;protectionagainstelectricshocks;lowvoltage;safetyrequirements;testing;classificationsystems;electricalengineering;low-voltagefuses;voltage;design
【摘要】:TheseUL248proposalsincludeincreaseduseofInternationalsymbology,clarifications,editorialrevisions,establishmentofminimumsamplesintheOperationTestforFuses,theadditionofCanadianrequirementsforClassKfuseswithClassHdimensions,miniaturefuserequirements,withdrawalofbodytemperaturerequirementsandtheadditionof600VratingstoClassTfuses.
【中国标准分类号】:K31
【国际标准分类号】:29_120_50
【页数】:
【正文语种】:英语
【英文标准名称】:Informationprocessingsystems-FibreDistributedDataInterface(FDDI)-HybridRingControl(HRC)
【原文标准名称】:信息处理系统.光纤数据分布式接口(FDDI).混合式环控制(HRC)
【标准号】:BSISO/IEC9314-5-1995
【标准状态】:现行
【国别】:英国
【发布日期】:1995-07-15
【实施或试行日期】:1995-07-15
【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】:纤维光学;信息交流;光纤;数据传输;高级数据链路控制规程;纤维光缆;计算机网络;同步传输;光纤分布数据接口(FIBERDISTRIBUTEDDATAINTERFACE);光学纤维;数据传输控制规程;数据传输方法;协议;物理层(开放系统互连);开放系统互连;接口;包交换网络;数据链路层
【英文主题词】:Communicationprocedures;Controlprocedures;Datainterface;Dataprocessing;Datatransfer;Datatransmission;FDDI;Fibredistributeddatainterface;Fibreoptics;Informationexchange;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Networkinterconnection;Opticalfibres;Opticalwaveguides;Packetswitchingnetworks;Physicallayers
【摘要】:ThispartofISO/IEC9314specifiesahybridringcontrol(HRC)protocolwhichprovidesamodeofoperationinwhichbothpacketswitchedandisochronousdataaretransmittedwithinthesamespecialframestructure,calledacycle.HRCisdesignedtooperatewiththeexistingmediaaccesscontrol(MAC),physicallayer(PHY),andphysicalmediumdependent(PMD)layersoftheFDDIprotocol.TheHRCiscomposedofthehybridmultiplexer(H-MUX)andtheisochronousmediaaccesscontrol(I-MAC)protocols.TheH-MUXintegratespacketandisochronousdataintocycleswhichittransmitsontoandreceivesfromthemediumusingtheservicesofthephysicallayer.TheI-MACprovidesseparatetransmissionchannelsforthetransferofuserisochronousdatastreams.Theformat,clockingandsynchronizationofcycles,andtheoperationandinterfacesoftheH-MUXandI-MACaredefinedbythispartofISO/IEC9314.TheseinterfacesincludetheinterfacetotheFDDIstationmanagement(SMT)protocol.TheHRCisdesignedtosupportvarioustransmissionrates,from100Mbpsupwards,inincrementsof6,144Mbps.AlltransmissionratedependentparametersdefinedinthispartofISO/IEC9314assumeatransmissionrateof100Mbps.StationscomposedofFDDIandHRCentitiesarereferredtoasFDDI-Ⅱstations.TheFDDIpacketMAC(P-MAC)andtheHRCcomponents,andtheirarchitecturalrelationshiptoLLCandacircuitswitchingMultiplexer(CS-MUX)areillustratedinfigure1.ThisfiguredoesnotimplyanimplementationconfigurationFDDI-ⅡnetworksconsistofFDDI-Ⅱstations.InteroperabilitybetweenFDDIandFDDI-ⅡstationsonthesamenetworkisprovidedinHRCbasicmode,whichonlysupportspackettransmission.ThesetofFDDIstandards,ISO/IEC9314,specifiestheinterfaces,functions,andoperationsnecessarytoensureinteroperabilitybetweenconformingFDDIimplementations.ThispartofISO/IEC9314specifiesahybridringcontrolprotocol:HRC.Conformingimplementationsmayemployanydesigntechniquethatdoesnotviolateinteroperability.
【中国标准分类号】:M33
【国际标准分类号】:33_180_01;35_110
【页数】:120P;A4
【正文语种】:英语
