IEEE 802.3an-2006 信息技术.系统间的信息交换和电信.局域网和城域网.特殊要求.第3部分:带有冲突检测存取方法的载波检测多路访问(CSMA/CD)及物理层规范.修改件1:10GBASE-T型10Gb/s物理层规范和管理参数

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【英文标准名称】:Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-Localandmetropolitanareanetworks-Specificrequirements-Part3:CarrierSenseMultipleAccesswithCollisionDetection(CSMA/CD)AccessMethodandPhysicalLayer
【原文标准名称】:信息技术.系统间的信息交换和电信.局域网和城域网.特殊要求.第3部分:带有冲突检测存取方法的载波检测多路访问(CSMA/CD)及物理层规范.修改件1:10GBASE-T型10Gb/s物理层规范和管理参数
【标准号】:IEEE802.3an-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:频带宽度;电路网络;传播学;通信网;通信规程;通信系统;计算机网络;控制规程;带检测冲突的载波检测多址存取;数据链层;数据处理;数据传送;数据传输;数据传输控制规程;数据传输方法;定义;EDP;电子数据处理;电气安全;光纤;信息交流;信息交换;信息处理;情报系统;信息技术;接口(数据处理);局部地区网络;局域网;局域电话网;人类;管理;文电;城域网;城域;多处理机;开式系统;开放系统互连;性能;物理层;信号电平;信号;电信;电信传输法;试验;传递函数;电压
【英文主题词】:Bandwidths;Circuitnetworks;Communication;Communicationnetworks;Communicationprocedures;Communicationsystems;Computernetworks;Controlprocedures;CSMA/CD;Datalinklayers;Dataprocessing;Datatransfer;Datatransmission;Datatransmissioncontrolprocedures;Datatransmissionmethods;Definitions;EDP;Electricalsafety;Fibreoptics;Informationexchange;Informationinterchange;Informationprocessing;Informationsystems;Informationtechnology;Interfaces(dataprocessing);LAN;Localareanetworks;Localtelephonenetwork;MAN;Management;Messages;Metropolitanareanetworks;Metropolitanareas;Multiprocessors;Opensystems;Opensystemsinterconnection;OSI;Performance;Physicallayers;Signallevel;Signals;Telecommunication;Telecommunicationtransmissionmethods;Telecommunications;Testing;Transferfunctions;Voltage
【摘要】:definesthewire-levelmodulationfor10GBASE-TasaTomlinson-Harashimaprecoded(THP)versionofpulse-amplitudemodulationwith16discretelevels(PAM-16),encodedinatwo-dimensionalcheckerboardpatternknownasDSQ128.Severalproposalswereconsideredforwire-levelmodulation,includingPAMwith12discretelevels(PAM-12),10levels(PAM-10),or8levels(PAM-8),bothwithandwithoutTomlinson-HarashimaPrecoding(THP).PAM-5iswhatisusedintheolder1000BASE-TgigabitEthernetstandard
【中国标准分类号】:M11
【国际标准分类号】:35_110
【页数】:181P.;A4
【正文语种】:英语


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【英文标准名称】:TestMethodforDeterminationofFire-Test-ResponseCharacteristicsofComponentsorCompositesofMattressesorFurnitureforUseinCorrectionalFacilitiesafterExposuretoVandalism,byEmployingaBenchScaleOxygenConsumptionCalorimeter
【原文标准名称】:用实验室耗氧热量计测定遭破坏后修复设施中床垫或家具用部件或合成材料燃烧试验响应特性的标准试验方法
【标准号】:ASTMF1550-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:F33.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:燃烧特性;火灾;防火安全;建筑材料;家具部件;试验;家具;床垫;破坏行为
【英文主题词】:calorimeter;conecalorimeter;correctionfacility;fire;fire-test-response;heatrelease;ignition;mattress;oxygenconsumption;smallscale;upholsteredfurniture;vandalism
【摘要】:1.1Thisfire-test-responsetestmethodisdesignedforusetodeterminevariousfire-test-responsecharacteristics,includingignitabilityandheatreleaserate,fromcompositesofmattressesorfurniture,orcorrectionalfacilities,whichhavebeenvandalizedinaprescribedmannertoexposethefillingmaterial,byusingabenchscaleoxygenconsumptioncalorimeter.1.2Thistestmethodprovidesformeasurementsofthetimetosustainedflaming,heatreleaserate,peakandtotalheatrelease,andeffectiveheatofcombustionataconstantradiantheatfluxof35kW/m2.See5.7forlimitations.1.3Theapparatususedinthistestmethodisalsocapableofdeterminingheatreleasedataatdifferentheatfluxes.1.4Thespecimenisorientedhorizontallyandasparkignitionsourceisused.1.5Allfire-test-responsecharacteristicsaredeterminedusingtheapparatusandtheproceduresdescribedinTestMethodE1354.1.6Thetestsaredoneonbench-scalespecimenscombiningthemattressorfurnitureouterlayercomponents.Frameelementsarenotincluded.1.7Thevandalismissimulatedbycausingaprescribedcutontheouterlayerofthecomposite,deepenoughtoexposethefillingmaterialtotheincidentradiation.1.8ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.9Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,products,orassembliesunderactualfireconditions.1.10Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificsafetyprecautions,seeSection7.
【中国标准分类号】:Y80
【国际标准分类号】:13_220_40;97_140
【页数】:11P.;A4
【正文语种】: