QJ 2738.3-1995 MJ螺纹丝锥 短柄螺母丝锥
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基本信息
| 标准名称： | MJ螺纹丝锥 短柄螺母丝锥 |
| 中标分类： | 机械 >> 工艺装备 >> 刀具 |
| ICS分类： | 机械制造 >> 切削工具 >> 丝锥和板牙 |
| 发布日期： | 1995-04-26 |
| 实施日期： | 1995-12-13 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 10页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 机械 工艺装备 刀具 机械制造 切削工具 丝锥和板牙
下载地址: 点击此处下载
【英文标准名称】:Informationtechnology-Telecommunicationsandinformationexchangebetweensystems-Localandmetropolitanareanetworks-Specificrequirements-Part5:Tokenringaccessmethodandphysicallayerspecifications
【原文标准名称】:信息技术系统间远程通信和信息交换局域网和城域网特殊要求第5部分:令牌环访问方法和物理层规范
【标准号】:ISO/IEC8802-5-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-09
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:网络互连;局域网;信息技术;人类;局部地区网络;电信;媒体通路控制;城域网;定义;标志环;信息交换;物理层;数据处理;多路存取计算机
【英文主题词】:Dataprocessing;Definition;Definitions;Informationinterchange;Informationtechnology;LAN;Localareanetworks;MAC;MAN;Mediumaccesscontrol;Metropolitanareanetworks;Networkinterconnection;Physicallayers;Telecommunications;Tokenring
【摘要】:Forthepurposeofcompatibleinterconnectionofdataprocessingequipmentviaalocalareanetwork(LAN)usingthetokenringaccessmethod,thispartofISO/IEC8802a)Providesageneraldescriptionofthetokenringlocalareanetwork(LAN)architecture(clause2);b)Definestheframeformat,includingthedelimiters,addressfields,informationfield,andframe-checksequence(FCS).DefinestheMediumAccessControl(MAC)frames,timers,anderrorcounters(clause3);c)DefinestheMACprotocolsincludingfinitestatemachinesandstatetables(clause4);d)DefinesthesystemlevelPhysicallayer(PHY)signalingspecificationsthatarespecifictoaringstation(clause5);e)Definesthemanagedobjectsnecessarytomanagetheserviceandprotocolelementsthatarein-volvedinthemanagementofatokenringstation(clause6);f)DefinesthePHYstationattachmentspecificationfor4and16Mbit/soperation.Thisincludesthetransmitter,receiver,mediuminterfaceconnector,andtransmissionchannelforbothshieldedtwistedpair(STP)andunshieldedtwistedpair(UTP)media(clause7);g)Definestheconcentrator,incorporatingmultipletrunkcouplingunits(TCUs),fortheattachmentofagroupofstationstothering(clause8);h)Includestheprotocolimplementationconformancestatement(PICS)proformaincompliancewiththerelevantrequirements,andinaccordancewiththerelevantguidance,giveninISO/IEC9646-2:1994(annexA);i)Includeschanneldesignexamplesandformulasforcalculatingcablingandconcentratorsystemconfigurations(annexB);j)Describesjittercomponentsandprovidesanexampleofjitterbuildupusingaphaselocklooprecoverycircuit(annexC);k)Providesinformativetransmitterfilterdesignexample(annexD);1)Providesrecommendedguidelinesforsafetyandoperatingenvironments(annexE);m)IllustratestheMACfinitestatemachinesinanotationsimilartothatusedinISO/IEC8802-5:1992(annexF);n)Describesmajorimprovementsmadeafterthefirsteditionofthestandard(annexG);o)ProvidesasamplealgorithmfortheparsingofMACframes(annexH);p)Providesrecommendationsfortheuseoftokenringaccessprioritiestosupportmultimediatraffic(annexI);q)Providesbiterrorrate(BER)criteriaforlobemediatesting(annexP).Aparticularemphasisofthisstandardistospecifytheexternallyvisiblecharacteristicsneededforinterconnectioncompatibility,whileavoidingunnecessaryconstraintsuponandchangestointernaldesignandimplementationoftheheterogeneousprocessingequipmenttobeinterconnected.TheapplicationsenvironmentfortheLANisintendedtobecommercialandlightindustrial.TheuseoftokenringLANsinhomeandheavyindustrialenvironments,whilenotprecluded,hasnotbeenconsideredinthedevelopmentofthisstandard.Thisstandard,theThirdEditionofthispartofISO/IEC8802,providesenhancementsandcorrectionstotheSecondEdition.TheSecondEditionprovidedgreaterspecificityandimprovedclaritytotheFirstEdition(1992-06-12)toensureinteroperabilityofthevariouscomponentsinthetokenringnetwork.Theintentofthiseditionistomaintaininteroperabilitywithstationsdesignedtothisspecificationandstationsdesignedtoprioreditionsofthestandard.However,interoperabilitywithpriorimplementations(particularlyinregardtoclause7)cannotbeguaranteedduetononspecificitywithinthe1992edition.AnnexGliststhespecificdifferencesbetweenthesecondeditionandthefirstedition.Thefollowingitemsaresubjectsforfuturestudy:a)Controlledbitalteringbyanydeviceexceptastation.b)Methodologytoassurehandlingofjoiningofmultipleringsasmaybeusedbymanagedconcen-tratorstoassurenormalinsertionprocessprotectionmechanisms(suchasduplicateaddresstestorringparameterservernotification).c)Ri
【中国标准分类号】:L78
【国际标准分类号】:35_100_10;35_110
【页数】:243P;A4
【正文语种】:英语
【英文标准名称】:Gastightnessofequipmentforgasweldingandalliedprocesses;identicalwithISO9090:1989
【原文标准名称】:气焊及类似加工工艺设备的气体密封
【标准号】:DINISO9090-1990
【标准状态】:现行
【国别】:德国
【发布日期】:1990-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:NAS
【标准类型】:()
【标准水平】:()
【中文主题词】:气焊设备;气体;特性;焊接;试验;焊接设备;定义;气密性;漏泄试验;气焊;耐气试验;渗透性测量
【英文主题词】:
【摘要】:
【中国标准分类号】:J64
【国际标准分类号】:25_160_30
【页数】:4P;A4
【正文语种】:德语
【原文标准名称】:信息技术系统间远程通信和信息交换局域网和城域网特殊要求第5部分:令牌环访问方法和物理层规范
【标准号】:ISO/IEC8802-5-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-09
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:网络互连;局域网;信息技术;人类;局部地区网络;电信;媒体通路控制;城域网;定义;标志环;信息交换;物理层;数据处理;多路存取计算机
【英文主题词】:Dataprocessing;Definition;Definitions;Informationinterchange;Informationtechnology;LAN;Localareanetworks;MAC;MAN;Mediumaccesscontrol;Metropolitanareanetworks;Networkinterconnection;Physicallayers;Telecommunications;Tokenring
【摘要】:Forthepurposeofcompatibleinterconnectionofdataprocessingequipmentviaalocalareanetwork(LAN)usingthetokenringaccessmethod,thispartofISO/IEC8802a)Providesageneraldescriptionofthetokenringlocalareanetwork(LAN)architecture(clause2);b)Definestheframeformat,includingthedelimiters,addressfields,informationfield,andframe-checksequence(FCS).DefinestheMediumAccessControl(MAC)frames,timers,anderrorcounters(clause3);c)DefinestheMACprotocolsincludingfinitestatemachinesandstatetables(clause4);d)DefinesthesystemlevelPhysicallayer(PHY)signalingspecificationsthatarespecifictoaringstation(clause5);e)Definesthemanagedobjectsnecessarytomanagetheserviceandprotocolelementsthatarein-volvedinthemanagementofatokenringstation(clause6);f)DefinesthePHYstationattachmentspecificationfor4and16Mbit/soperation.Thisincludesthetransmitter,receiver,mediuminterfaceconnector,andtransmissionchannelforbothshieldedtwistedpair(STP)andunshieldedtwistedpair(UTP)media(clause7);g)Definestheconcentrator,incorporatingmultipletrunkcouplingunits(TCUs),fortheattachmentofagroupofstationstothering(clause8);h)Includestheprotocolimplementationconformancestatement(PICS)proformaincompliancewiththerelevantrequirements,andinaccordancewiththerelevantguidance,giveninISO/IEC9646-2:1994(annexA);i)Includeschanneldesignexamplesandformulasforcalculatingcablingandconcentratorsystemconfigurations(annexB);j)Describesjittercomponentsandprovidesanexampleofjitterbuildupusingaphaselocklooprecoverycircuit(annexC);k)Providesinformativetransmitterfilterdesignexample(annexD);1)Providesrecommendedguidelinesforsafetyandoperatingenvironments(annexE);m)IllustratestheMACfinitestatemachinesinanotationsimilartothatusedinISO/IEC8802-5:1992(annexF);n)Describesmajorimprovementsmadeafterthefirsteditionofthestandard(annexG);o)ProvidesasamplealgorithmfortheparsingofMACframes(annexH);p)Providesrecommendationsfortheuseoftokenringaccessprioritiestosupportmultimediatraffic(annexI);q)Providesbiterrorrate(BER)criteriaforlobemediatesting(annexP).Aparticularemphasisofthisstandardistospecifytheexternallyvisiblecharacteristicsneededforinterconnectioncompatibility,whileavoidingunnecessaryconstraintsuponandchangestointernaldesignandimplementationoftheheterogeneousprocessingequipmenttobeinterconnected.TheapplicationsenvironmentfortheLANisintendedtobecommercialandlightindustrial.TheuseoftokenringLANsinhomeandheavyindustrialenvironments,whilenotprecluded,hasnotbeenconsideredinthedevelopmentofthisstandard.Thisstandard,theThirdEditionofthispartofISO/IEC8802,providesenhancementsandcorrectionstotheSecondEdition.TheSecondEditionprovidedgreaterspecificityandimprovedclaritytotheFirstEdition(1992-06-12)toensureinteroperabilityofthevariouscomponentsinthetokenringnetwork.Theintentofthiseditionistomaintaininteroperabilitywithstationsdesignedtothisspecificationandstationsdesignedtoprioreditionsofthestandard.However,interoperabilitywithpriorimplementations(particularlyinregardtoclause7)cannotbeguaranteedduetononspecificitywithinthe1992edition.AnnexGliststhespecificdifferencesbetweenthesecondeditionandthefirstedition.Thefollowingitemsaresubjectsforfuturestudy:a)Controlledbitalteringbyanydeviceexceptastation.b)Methodologytoassurehandlingofjoiningofmultipleringsasmaybeusedbymanagedconcen-tratorstoassurenormalinsertionprocessprotectionmechanisms(suchasduplicateaddresstestorringparameterservernotification).c)Ri
【中国标准分类号】:L78
【国际标准分类号】:35_100_10;35_110
【页数】:243P;A4
【正文语种】:英语
【英文标准名称】:Gastightnessofequipmentforgasweldingandalliedprocesses;identicalwithISO9090:1989
【原文标准名称】:气焊及类似加工工艺设备的气体密封
【标准号】:DINISO9090-1990
【标准状态】:现行
【国别】:德国
【发布日期】:1990-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:NAS
【标准类型】:()
【标准水平】:()
【中文主题词】:气焊设备;气体;特性;焊接;试验;焊接设备;定义;气密性;漏泄试验;气焊;耐气试验;渗透性测量
【英文主题词】:
【摘要】:
【中国标准分类号】:J64
【国际标准分类号】:25_160_30
【页数】:4P;A4
【正文语种】:德语
