ANSI/TIA-470.130-C-2008 通信.电话终端设备.带有耳机的模拟电话机的传输要求
时间:2024-05-17 07:33:18 来源: 标准资料网 作者：标准资料网 阅读：9868
【英文标准名称】:Telecommunications-TelephoneTerminalEquipment-TransmissionRequirementsforAnalogTelephoneswithHeadset
【原文标准名称】:通信.电话终端设备.带有耳机的模拟电话机的传输要求
【标准号】:ANSI/TIA-470.130-C-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:模拟;兼容性;连接的;装置;接口;百分率;性能;公众交换电话网;电信;电话设备;电话机;传输;用户
【英文主题词】:Analogue;Compatibility;Connected;Installations;Interfaces;Percentage;Performance;PSTN;PublicSwitchedTelephoneNetwork;Telecommunications;Telephoneequipment;Telephones;Transmission;User
【摘要】:Thisstandardprovidestransmissionrequirementsforanalogtelephoneswhenusedwithaheadset.TherequirementsinthisstandardapplytotelephonesintendedtobeconnectedtothePublicSwitchedTelephoneNetwork(PSTN).Theserequirementsshouldensurecompatibilityandsatisfactoryperformancetotheuserinahighpercentageofinstallations.Theinterfacebetweenthetelephoneandtheheadsetisoutsidethescopeofthisstandard.
【中国标准分类号】:M11
【国际标准分类号】:33_050_10
【页数】:
【正文语种】:英语
【英文标准名称】:Aerospaceseries.Cables,electrical,aircraftuse.Testmethods.Tensiletestonconductorsandstrands
【原文标准名称】:航空航天系列.飞行器用电缆.试验方法.导线和绞线的抗拉试验
【标准号】:BSEN3475-505-2012
【标准状态】:现行
【国别】:英国
【发布日期】:2012-03-31
【实施或试行日期】:2012-03-31
【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】:航空航天运输;航空运输;飞行器;航空器部件;航空仪表;电缆;定义;电缆线;导电体;电线;航天运输;规范(验收);符号;拉伸强度;测试;使用
【英文主题词】:Aerospacetransport;Airtransport;Aircraft;Aircraftcomponents;Aircraftinstruments;Cables;Definitions;Electriccables;Electricconductors;Electricalcords;Spacetransport;Specification(approval);Symbols;Tensilestrength;Testing;Use
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:49_060
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforXenon-ArcExposureofPlasticsIntendedforOutdoorApplications
【原文标准名称】:户外用塑料的氙弧型曝光装置的标准实施规程
【标准号】:ASTMD2565-1999(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【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】:D20.50
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:degradation;exposure;lightexposure;ultraviolet;xenon-arc;Degradation--plastics;Exposuretests--plastics;Lightexposure--plastics;Ultraviolet(UV)analysis--plastics;Waterexposureapparatus;Xenon-arclightexposure
【摘要】:Theabilityofaplasticmaterialtoresistdeteriorationofitselectrical,mechanical,andopticalpropertiescausedbyexposuretolight,heat,andwatercanbeverysignificantformanyapplications.Thispracticeisintendedtoinducepropertychangesassociatedwithend-useconditions,includingtheeffectsofdaylight,moisture,andheat.Theexposureusedinthispracticeisnotintendedtosimulatethedeteriorationcausedbylocalizedweatherphenomena,suchas,atmosphericpollution,biologicalattack,andsaltwaterexposure.Cautionx2014;Variationsinresultsmaybeexpectedwhenoperatingconditionsarevariedwithintheacceptedlimitsofthispractice.Therefore,allreferencestotheuseofthispracticemustbeaccompaniedbyareportpreparedinaccordancewithSection9thatdescribesthespecificoperatingconditionsused.RefertoPracticeG151fordetailedinformationonthecaveatsapplicabletouseofresultsobtainedinaccordancewiththispractice.Note38212;Additionalinformationonsourcesofvariabilityandonstrategiesforaddressingvariabilityinthedesign,execution,anddataanalysisoflaboratory-acceleratedexposuretestsisfoundinGuideG141.Reproducibilityoftestresultsbetweenlaboratorieshasbeenshowntobegoodwhenthestabilityofmaterialsisevaluatedintermsofperformancerankingcomparedtoothermaterialsortoacontrol.,Therefore,exposureofasimilarmaterialofknownperformance(acontrol)atthesametimeasthetestmaterialsisstronglyrecommended.Itisrecommendedthatatleastthreereplicatesofeachmaterialbeexposedtoallowforstatisticalevaluationofresults.TestresultswilldependuponthecarethatistakentooperatetheequipmentinaccordancewithPracticeG155.Significantfactorsincluderegulationoflinevoltage,freedomfromsaltsorotherdepositsfromwater,temperatureandhumiditycontrol,andconditionandageoftheburnerandfilters.1.1Thispracticecoversspecificproceduresandtestconditionsthatareapplicableforxenon-arcexposureofplasticsconductedinaccordancewithPracticesG151andG155.Thispracticealsocoversthepreparationoftestspecimens,thetestconditionsbestsuitedforplastics,andtheevaluationoftestresults.Note18212;Previousversionsofthispracticereferencedxenon-arcdevicesdescribedinPracticeG26,whichdescribedveryspecificequipmentdesigns.PracticeG26isbeingreplacedbyPracticeG151,whichdescribesperformancecriteriaforallexposuredevicesthatuselaboratorylightsourcesandbyPracticeG155,whichgivesrequirementsforexposingnonmetallicmaterialsinxenon-arcdevices.PracticeG26willbeballotedforwithdrawalbeforeDecember2000.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note28212;ThispracticeistechnicallyequivalenttoISO4892-2.
【中国标准分类号】:G31
【国际标准分类号】:83_140_01
【页数】:4P.;A4
【正文语种】:英语