IEC/TS 61873-2001 5类以上传输特性的对绞/星绞对称电缆的当前技术发展
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【英文标准名称】:Stateoftheartforsymmetricalpair/quadcableswithtransmissioncharacteristicsbeyondcategory5
【原文标准名称】:5类以上传输特性的对绞/星绞对称电缆的当前技术发展
【标准号】:IEC/TS61873-2001
【标准状态】:作废
【国别】:国际
【发布日期】:2001-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC46C
【标准类型】:()
【标准水平】:()
【中文主题词】:多线的;传输特性;电信;阻尼(波);电缆;电缆;对称的;电性能;电气工程;特性;工艺学
【英文主题词】:multiwire;electricalengineering;properties;cables;electriccables;symmetrical;electricalproperties;damping;technology;telecommunication;transmissioncharacteristics
【摘要】:Thecablesreferencedinthistechnicalspecificationareintendedforgenericcablingsystems,havingsolidconductorsandwithapaircountoffourpairsorless.Theirelectricalperformancerequirementsarelaidoutsuchthatamarginof3dBisguaranteedforthechannel,whichapproximatelycorrespondsto10dBper100mofcable,iftheconnectinghardwareandthepatchcordsaretakenintoaccount.Thecablesmaybeprovidedwithoutascreen,withacommonscreenorwithindividualscreensoverthepairs.Thesecablesareintendedforvariousnewcommunicationsystems,whichareunderdevelopment,andwhichmayuseasmanyasfourpairssimultaneously.Inthissense,thepresentspecificationisintendedasaworkingdocumentforsystemdevelopers,toallowtheevaluationofcompletesystemsfromatechnicalandalsofromaneconomicpointofview.Thecablescoveredbythisspecificationareintendedtooperatewiththevoltageandcurrentlevelsnormallyencounteredincommunicationsystems.Thesecablesarenotintendedtobeusedinconjunctionwithlowimpedancesources,forexampletheelectricpowersuppliesofpublicutilitymains.Therecommendedtemperaturerangeduringinstallationmaybeindicatedinthedetailspecification.Theoperatingtemperaturerangeisatleast-20℃to+60℃inordertoensurethataconnectedlinkremainsoperationalundernormaltemperaturevariations.(Theoutputandreceiveamplifiersgo,uponpower-up,throughatrainingwhichtakesthelineconditionintoaccountandcompensatesforit.Aftertraining,theamplifiersarelocked,tomaintaintheestablishedparameters.Ifthelineconditionsarechangedbeyondthespecifiedlevel,thenthebiterrorrateofthelinecardexceedsthepermissiblethresholdandthelinkisinterrupted.)
【中国标准分类号】:K13
【国际标准分类号】:33_120_20
【页数】:13P.;A4
【正文语种】:英语
【原文标准名称】:5类以上传输特性的对绞/星绞对称电缆的当前技术发展
【标准号】:IEC/TS61873-2001
【标准状态】:作废
【国别】:国际
【发布日期】:2001-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC46C
【标准类型】:()
【标准水平】:()
【中文主题词】:多线的;传输特性;电信;阻尼(波);电缆;电缆;对称的;电性能;电气工程;特性;工艺学
【英文主题词】:multiwire;electricalengineering;properties;cables;electriccables;symmetrical;electricalproperties;damping;technology;telecommunication;transmissioncharacteristics
【摘要】:Thecablesreferencedinthistechnicalspecificationareintendedforgenericcablingsystems,havingsolidconductorsandwithapaircountoffourpairsorless.Theirelectricalperformancerequirementsarelaidoutsuchthatamarginof3dBisguaranteedforthechannel,whichapproximatelycorrespondsto10dBper100mofcable,iftheconnectinghardwareandthepatchcordsaretakenintoaccount.Thecablesmaybeprovidedwithoutascreen,withacommonscreenorwithindividualscreensoverthepairs.Thesecablesareintendedforvariousnewcommunicationsystems,whichareunderdevelopment,andwhichmayuseasmanyasfourpairssimultaneously.Inthissense,thepresentspecificationisintendedasaworkingdocumentforsystemdevelopers,toallowtheevaluationofcompletesystemsfromatechnicalandalsofromaneconomicpointofview.Thecablescoveredbythisspecificationareintendedtooperatewiththevoltageandcurrentlevelsnormallyencounteredincommunicationsystems.Thesecablesarenotintendedtobeusedinconjunctionwithlowimpedancesources,forexampletheelectricpowersuppliesofpublicutilitymains.Therecommendedtemperaturerangeduringinstallationmaybeindicatedinthedetailspecification.Theoperatingtemperaturerangeisatleast-20℃to+60℃inordertoensurethataconnectedlinkremainsoperationalundernormaltemperaturevariations.(Theoutputandreceiveamplifiersgo,uponpower-up,throughatrainingwhichtakesthelineconditionintoaccountandcompensatesforit.Aftertraining,theamplifiersarelocked,tomaintaintheestablishedparameters.Ifthelineconditionsarechangedbeyondthespecifiedlevel,thenthebiterrorrateofthelinecardexceedsthepermissiblethresholdandthelinkisinterrupted.)
【中国标准分类号】:K13
【国际标准分类号】:33_120_20
【页数】:13P.;A4
【正文语种】:英语
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