【英文标准名称】:Informationtechnology-Cablinginstallation-Testingofinstalledcabling
【原文标准名称】:信息技术.电缆安装.已安装的电缆的检验
【标准号】:BSEN50346-2002
【标准状态】:作废
【国别】:英国
【发布日期】:2003-01-30
【实施或试行日期】:2003-01-30
【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】:定义;信息技术;验收检验;电气工程;纤维光学;安装;安装;电信;光纤;测量;连接工艺;规范(验收);试验;测量技术;认可的测量;场所;操作;光波导;铜电缆;质量保证;计划;效率;建筑物;布线;故障探测
【英文主题词】:Acceptanceinspection;Approvalmeasurement;Buildings;Cabling;Communication;Communicationcables;Communicationmedia;Communicationtechnology;Connectiontechnology;Coppercable;Dataexchange;Dataformats;Definition;Definitions;Efficiency;Electricalengineering;ElectronicDataInterchanges;Electronicmeasuringdevices;Erection;ExtensibleMarkupLanguage;Faultfinding;Fibreoptics;Informationtechnology;Installations;Locations;Measurement;Measuringinstruments;Measuringpoints;Measuringtechniques;Operation;Opticalwaveguides;Planning;Qualityassurance;Schemes;Specification(approval);Symmetrical;Telecommunications;Testing
【摘要】:Thisstandardspecifiesproceduresfortestingthetransmissionperformanceofinstalledinformationtechnologycablinginpremises.Theseproceduresapplytobothbalancedcopperandopticalfibrecabling.Thesetestproceduresmaybeusedfor-acceptancetestingagainstagreedcablingperformancelimits,-verificationofspecificapplicationsupport,-theinvestigationoffaults.Thesetestproceduresarenotsuitableforcomponentsorcableassembliessuchaspatchcordsandequipmentcords.Foreachtestprocedurethisstandardspecifiesa)testparameter,b)thetestmethod(s),c)testsystem,d)testequipment,e)cablinginterfaceadaptor,f)measurementprocedure,g)calibration,h)interpretationoftestresults,i)documentation.Limitsfortheparametersundertestarespecifiedinrelevantcablingandapplicationstandards.
【中国标准分类号】:K13
【国际标准分类号】:35_110
【页数】:46P.;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-AlternateKeyboardArrangementforAlphanumericMachines
【原文标准名称】:信息技术.字母数字机用可替换的键盘排列
【标准号】:ANSIINCITS207-1991
【标准状态】:现行
【国别】:美国
【发布日期】:1991
【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】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:字母数字的;信息处理;键盘;办公机器
【英文主题词】:Alphanumeric;Informationprocessing;Keyboards;Officemachines
【摘要】:Thisstandardprovidesaperformance-orientedkeyboardarrangementthatisanalternativetothekeyboardpresentedinAmericanNationalStandardforofficemachinesandsupplies-Alphanumericmachines-Keyboardarrangement,ANSIX3.154.Thisstandarddescribesthearrangementofthe48basicprintingkeysonthekeyboardandthecharacters,uppercaseandlowercase,thatappearonthekeys.Thecharacterassignmentsaredividedintofiveapplicationareas,inrecognitionofthedifferentgraphiccharacterrequirementsoftheseapplicationareas.
【中国标准分类号】:L62
【国际标准分类号】:35_260
【页数】:13P.;A4
【正文语种】:英语