ANSI C12.18-2006 ANSI2类光学端口协议规范
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来源:标准资料网
【英文标准名称】:ProtocolSpecificationforANSIType2OpticalPort
【原文标准名称】:ANSI2类光学端口协议规范
【标准号】:ANSIC12.18-2006
【标准状态】:现行
【国别】:美国
【发布日期】:
【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】:NEMA(ASCC12)
【标准类型】:()
【标准水平】:()
【中文主题词】:连接点;信息技术;互连接;界面;光学的;协议规范;协议
【英文主题词】:Connectionpoints;Informationtechnology;Interconnection;Interfaces;Optical;Protocolspecification;Protocols
【摘要】:Detailsthecriteriarequiredforcommunicationswithanelectricpowermeteringdevicebyanotherdeviceviaanopticalport.ItalsoprovidesdetailsforacompleteimplementationofanOSI7-layermodel.
【中国标准分类号】:L65
【国际标准分类号】:31_260;33_140
【页数】:
【正文语种】:英语
基本信息
标准名称: | 滩海结构物上管网设计与施工技术规范 |
替代情况: | 被SY/T 4086-2012代替 |
发布部门: | 中国石油天然气总公司 |
发布日期: | 1995-12-18 |
实施日期: | 1996-06-01 |
首发日期: | 1900-01-01 |
作废日期: | 2013-03-01 |
出版社: | 石油工业出版社 |
出版日期: | 1900-01-01 |
页数: | 32开,30页 |
适用范围
本标准适用于滩海结构物上碳钢管网的新建工程和扩建、改建工程的新建部分的设计、施工及验收。
前言
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目录
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引用标准
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所属分类: 石油 石油勘探 开发与集输 油 气集输 石油及相关技术 石油产品和天然气储运设备
【英文标准名称】:Cablenetworksfortelevisionsignals,soundsignalsandinteractiveservices-Part1:Systemperformanceofforwardpaths
【原文标准名称】:电视信号、声音信号和交互式设备用电缆网络.第1部分:正向传输路径的系统性能
【标准号】:IEC60728-1-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-09
【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/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:天线系统;音频信号;电缆分布系统;电缆电视;电缆电视系统;架设电缆的分布系统;有线电视;同轴;同轴电缆;兼容性;可混用性;定义;电气工程;交互式的;测量技术;性能;性能要求;额定值;接收天线;信号传输;声音广播;规范(验收);电视广播;电视传输;电视信号
【英文主题词】:Antennasystems;Audiosignals;Cabledistributionsystems;Cabletelevision;Cabletelevisionsystem;Cableddistributionsystems;CATV;Coaxial;Coaxialcables;Compatibility;Definitions;Electricalengineering;Interactive;Measuringtechniques;Performance;Performancerequirements;Ratings;Receptionantennae;Signaltransmission;Soundbroadcasting;Specification(approval);Televisionbroadcasting;Televisiontransmission;Visionsignals
【摘要】:ThispartofIEC60728isapplicabletoanycablenetwork(includingindividualreceivingsystems)havingintheforwardpathacoaxialcableoutputandprimarilyintendedfortelevisionandsoundsignalsoperatingbetweenabout30MHzand3000MHz.Thisstandardspecifiesthebasicmethodsofmeasurementoftheoperationalcharacteristicsofcablenetworkhavingcoaxialcableoutputsinordertoassesslheperformanceofthesesystemsandtheirperformancelimits.AIlrequirementsrefertotheperformancelimits,whichshallbeobtainedbetweentheinput(s)totheheadendorheadendsandanysystemoutletwhenterminatedinaresistanceequaltothenominalloadimpedanceoffhesystem.unlessotherwisespecified.Wheresystemoutletsarenotused,theaboveappliesatthesubscriber'sendofthesubscriber'sfeeder.Alsotherequirementswhichareobtainedbetweentheinput(s)totheheadendorheadendsandanyhomenetworkinterface(HNI)aregiven.NOTE1Methodsofmeasurementdescribedinthisstandardareconsideredasbasic.However,anyequivalentmethodthatensuresatleastthesameaccuracymaybeused.NOTE2Ifthesystemoperatorwishestosubdividethesystemintoanumberofpartsorwishestousedifferenttransmissionmedia(forexample,coaxialcabling,balancedcabling.opticalcabling),theaccumulationofaegraaationsshouldnotexceedthefIguresgiveninthisstandard.NOTE3SystemperformancerequirementsofreturnpathsaswellasspecificmethodsofmeasurementfortheuseofthereturnpathsincablenetworksaredescribedinIEC60728—10.Clause5definesthesystemperformancelimitswhichwill,withanunimpairedinput,(headendinputsignal),producepictureandsoundsignals(atsystemoutlets)wheretheimpairmenttoanysingleparameterwiIIbenotworse.innormaIoperatingconditionsforanyanaloguechanneI,thanGradefouronthefive—gradeimpairmentscalecontainedinITU-BT500-10.Fordigitallymodulatedsignals.thequalityrequirementisaquasi-error-free(QEF)reception.AppropriateperformancerequirementsforthesignalsatthereceivingantennassitearegiyeninClause6inordertoprovideattheinputoftheheadendofthecablenetworkbothanalogueanddigitaltelevisionsignalswithsuitablequality.一Clause7isapplicabletohomenetworks(includingthoseofindividualreceivingsystems)usingcoaxialcables,balancedcablesoropticalcablesandprimarilyintendedfortelevisionsignals,soundsignalsandinteractiveservices,operatingbetweenabout30MHzand3000MHz.Thisclause,consideringthebasicoperationalcharacteristicsofahomenetwork,specifiestherequirementswhichshallbeobtainedatthehomenetworkinterface(HNI)takingintoaccounttheperformancerequirementsgivenatthesystemoutletorattheterminalinput.
【中国标准分类号】:M60
【国际标准分类号】:33_060_40
【页数】:156P;A4
【正文语种】:英语