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ANSI/EIA 600.37-1997 符号编码亚层

作者:标准资料网 时间:2024-05-17 15:00:03  浏览:8690   来源:标准资料网
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【英文标准名称】:SymbolEncodingSublayer
【原文标准名称】:符号编码亚层
【标准号】:ANSI/EIA600.37-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:媒体通路控制;物理层;电子工程;符号
【英文主题词】:symbols;physicallayers;mediumaccesscontrol;electronicengineering
【摘要】:ThisdocumentdescribestheportionoftheNodePhysicalLayerthatinterfacestotheMediumAccessControl(MAC)SublayerandtoLayerSystemManagement(LSM).ThissublayeriscalledtheSymbolEncoding(SE)Sublayer.TheSESublayerprovidestwoprimaryfunctions:(1)Acceptssymboltransmissionrequests(PHCCDATA.requestserviceprimitive)fromtheMACSublayer,convertsthesymbolsintocorrectmediumstatechangetiming,andproducesrequests(MSTATE.request)forstatechangesonthephysicalmedium.Thisfunctionissymbolencoding.(2)Acceptsstatechangeindications(MSTATE.indicationserviceprimitive)fromtheControlChannelMediumDependentPhysical(MDP)Sublayer,convertsthetimebetweenstatechangestosymbols,andproducesindicationsofsymbolreception(PHCCDATA.indication)fortheMACSublayer.Thisfunctionissymboldecoding.
【中国标准分类号】:L79
【国际标准分类号】:35_100_10
【页数】:
【正文语种】:英语


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Product Code:SAE AS5382
Title:Aerospace Cable, Fiber Optic
Issuing Committee:Ae8-D Wire And Cable Committee
Scope:This standard covers jacketed single-fiber multimode and single-mode fiber optic cables for aerospace usage.【英文标准名称】:StandardSpecificationforSteelCastingsSuitableforPressureService
【原文标准名称】:受压钢铸件的标准规范
【标准号】:ASTMA487/A487M-1993(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:1993
【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】:A01.18
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:alloysteel;martensiticstainlesssteel;pressurecontainingparts;stainlesssteel;steelcastings
【摘要】:1.1Thisspecificationcoverslow-alloysteelsandmartensiticstainlesssteelsinthenormalizedandtempered,orquenchedandtempered,conditionsuitableforpressure-containingparts.Theweldabilityoftheclassesinthisspecificationvariesfromreadilyweldabletoweldableonlywithadequateprecautions,andtheweldabilityofeachclassshouldbeconsideredpriortoassemblybyfusionwelding.1.2Selectionwilldependondesign,mechanical,andserviceconditions.Usersshouldnotethathardenabilityofsomeofthegradesmentionedmayrestrictthemaximumsizeatwhichtherequiredmechanicalpropertiesareobtained.1.3Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.Inch-poundunitsareapplicableformaterialorderedtoSpecificationA487andSIunitsformaterialorderedtoSpecificationA487M.
【中国标准分类号】:J31
【国际标准分类号】:77_140_80
【页数】:6P.;A4
【正文语种】:英语



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