NF C93-400-25-9-2009 电子设备用连接器.试验和测量.第25-9部分:信号完整性试验.试验25i:不同的色度亮度干扰
作者:标准资料网 时间:2024-05-22 05:27:27 浏览:8937
来源:标准资料网
【英文标准名称】:Connectorsforelectronicequipment-Testsandmeasurements-Part25-9:signalintegritytests-Test25i:aliencrosstalk.
【原文标准名称】:电子设备用连接器.试验和测量.第25-9部分:信号完整性试验.试验25i:不同的色度亮度干扰
【标准号】:NFC93-400-25-9-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-02-01
【实施或试行日期】:2009-02-28
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:元部件;串音衰减;定义;电插头;电气工程;电学测量;机电学;电子工程;电子设备;电子设备及元件;电子仪器;过滤器;阻抗;测量技术;测试
【英文主题词】:Components;Crosstalkattenuation;Definition;Definitions;Electricplugs;Electricalengineering;Electricalmeasurement;Electromechanics;Electronicengineering;Electronicequipment;Electronicequipmentandcomponents;Electronicinstruments;Filters;Impedance;Measuringtechniques;Testing
【摘要】:
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:25P;A4
【正文语种】:其他
【英文标准名称】:StandardClassificationforServiceabilityofanOfficeFacilityforSupportforOfficeWork
【原文标准名称】:办公室工作用办公设备适用性标准分类
【标准号】:ASTME1660-1995a(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E06.25
【标准类型】:(Classification)
【标准水平】:()
【中文主题词】:办公室工作支持;分类;分类标准;办公设备适用性;办公室
【英文主题词】:building;copiers;facility;facilityoccupants;function;office;performance;rating;ratingscale;requirements;serviceability
【摘要】:EachFacilityRatingScale(seeFigs.1through6)inthisclassificationprovidesameanstoestimatethelevelofserviceabilityofabuildingorfacilityforonetopicofserviceabilityandtocomparethatlevelagainstthelevelofanyotherbuildingorfacility.Thisclassificationcanbeusedforcomparinghowwelldifferentbuildingsorfacilitiesmeetaparticularrequirementforserviceability.Itisapplicabledespitedifferencessuchaslocation,structure,mechanicalsystems,age,andbuildingshape.Thisclassificationcanbeusedtoestimatetheamountofvarianceofserviceabilityfromtargetorfromrequirement,forasingleofficefacility,orwithinagroupofofficefacilities.Thisclassificationcanbeusedtoestimatethefollowing:4.4.1Serviceabilityofanexistingfacilityforusesotherthanitspresentuse.4.4.2Serviceability(potential)ofafacilitythathasbeenplannedbutnotyetbuilt.4.4.3Serviceability(potential)ofafacilityforwhichremodelinghasbeenplanned.Useofthisclassificationdoesnotresultinbuildingevaluationordiagnosis.Buildingevaluationordiagnosisgenerallyrequiresaspecialexpertiseinbuildingengineeringortechnologyandtheuseofinstruments,tools,ormeasurements.Thisclassificationappliesonlytofacilitiesthatarebuildingconstructions,orpartsthereof.(Whilethisclassificationmaybeusefulinratingtheserviceabilityoffacilitiesthatarenotbuildingconstructions,suchfacilitiesareoutsidethescopeofthisclassification.)Thisclassificationisnotintendedfor,andisnotsuitablefor,useforregulatorypurposes,norforfirehazardassessmentnorforfireriskassessment.1.1Thisclassificationcoverspairsofscalesforclassifyinganaspectoftheserviceabilityofanofficefacility,thatis,thecapabilityofanofficefacilitytomeetcertainpossiblerequirementsforperformancetosupporttypicalofficework.1.2Withinthataspectofserviceability,eachpairofscales,showninthrough,areforclassifyingonetopicofserviceability.EachparagraphinanOccupantRequirementScale(seeFigs.1through6)summarizesonelevelofserviceabilityonthattopic,whichoccupantsmightrequire.ThematchingentryintheFacilityRatingScale(seeFigs.1through6)isatranslationoftherequirementintoadescriptionofcertainfeaturesofafacilitywhich,takenincombination,indicatethatthefacilityislikelytomeetthatlevelofrequiredserviceability.1.3TheentriesintheFacilityRatingScale(seeFigs.1through6)areindicativeandnotcomprehensive.Theyareforquickscanningtoestimateapproximately,quickly,andeconomically,howwellanofficefacilityislikelytomeettheneedsofoneoranothertypeofoccupantgroupovertime.Theentriesarenotformeasuring,knowing,orevaluatinghowanofficefacilityisperforming.1.4Thisclassificationcanbeusedtoestimatethelevelofserviceabilityofanexistingfacility.Itcanalsobeusedtoestimatetheserviceabilityofafacilitythathasbeenplannedbutnotyetbuilt,suchasoneforwhichsingle-linedrawingsandoutlinespecificationshavebeenprepared.1.5Thisclassificationindicateswhatwouldcauseafacilitytoberatedatacertainlevelofserviceabilitybutdoesnotstatehowtoconductaserviceabilityratingnorhowtoassignaserviceabilityscore.ThatinformationisfoundinPracticeE1334.ThescalesinthisclassificationarecomplimentarytoandcompatiblewithPracticeE1334.Eachrequirestheother.
【中国标准分类号】:Y50
【国际标准分类号】:35_260
【页数】:16P.;A4
【正文语种】:
