NF P18-926-1999 混凝土结构防护和修理用产品和系统,试验方法.红外分析(EN1767)
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来源:标准资料网
【英文标准名称】:Productsandsystemsfortheprotectionandrepairofconcretestructures.Testmethods.Infraredanalysis.
【原文标准名称】:混凝土结构防护和修理用产品和系统,试验方法.红外分析(EN1767)
【标准号】:NFP18-926-1999
【标准状态】:现行
【国别】:法国
【发布日期】:1999-08-01
【实施或试行日期】:1999-08-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:保护剂;混凝土构件;表面防护;有机物质;试剂;聚合共混料;胶乳;保护系统;红外线光谱法;化学分析和试验;特性;试验;双组分混合物;混凝土;保护(装置);检修;结构;混凝土结构;人造树脂
【英文主题词】:Artificialresins;Chemicalanalysisandtesting;Concretecomponents;Concretestructures;Concretes;Infraredspectroscopy;Latices;Organicmatters;Polymericblends;Properties;Protectingagents;Protection;Protectionsystems;Reagents;Repair;Structures;Surfaceprotection;Testing;Two-componentmixtures
【摘要】:
【中国标准分类号】:P25
【国际标准分类号】:91_080_40
【页数】:9P.;A4
【正文语种】:其他
【英文标准名称】:Informationtechnology-FibreDistributedDataInterface(FDDI)-Part9:Low-costfibrephysicallayermediumdependent(LCF-PMD)
【原文标准名称】:信息技术光纤分布式数据接口(FDDI)第9部分:低价光纤物理层相关媒体(LCF-PMD)
【标准号】:ISO/IEC9314-9-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Communicationprocedures;Controlprocedures;Datainterface;Dataprocessing;Datatransmission;FDDI;Fibredistributeddatainterface;Informationinterchange;Informationtechnology;Interfaces;Interfaces(dataprocessing);Networkinterconnection;Opticalfibr
【摘要】:ThispartofISO/IEC9314specifiestherequirementsfortheFibreDistributedDataInterface(FDDI);tokenringlow-costfibrephysicallayermediumdependent(LCF-PMD).FDDIprovidesahigh-bandwidth(100Mbit/s),general-purposeinterconnectionamongcomputersandperipheralequipmentusingfibreopticsastheprimarytransmissionmedium.FDDIcanbeconfiguredtosupportasustaineddatatransferrateofatleast80Mbit/s(10Mbyte/s).FDDIprovidesconnectivityformanynodesdistributedoverdistancesofseveralkilometersinextent.DefaultvaluesforFDDIarecalculatedonthebasisof1000physicallinksandatotalfibrepathlengthof200km(typicallycorrespondingto500nodesand100kmofdualfibrecable).FDDIconsistsof:a)aPhysicalLayer(PL),whichisdividedintotwosublayers1)APhysicalLayer,MediumDependent(PMD)sublayer(ISO/IEC9314-3),withseveralalternativemediumchoices,whichprovidesthedigitalbasebandpoint-to-pointcommunicationbetweennodesintheFDDInetwork.ThePMDprovidesallservicesnecessarytotransportasuitablycodeddigitalbitstreamfromnodetonode.ThePMDdefinesandcharacterizesthemediumdriversandreceivers,medium-dependentcoderequirements,cables,connectors,powerbudgets,opticalbypassprovisions,andphysical-hardware-relatedcharacteristics.ItspecifiesthepointofinterconnectabilityforconformingFDDIattachments.TheoriginalPMDstandard(ISO/IEC9314-3),calledPMD,definesattachmenttomulti-modefibreupto2km,whilethisLCF-PMD,opticallyinteroperablewiththeoriginalPMD,defineslow-costattachmentstomulti-modefibreupto500m.AdditionalPMDsublayerstandardsareforattachmenttosinglemodefibre(SMF-PMD),andtwisted-pairupto100m(TP-PMD);2)APhysicalLayerProtocol(PHY)sublayer(ISO/IEC9314-1),anditsenhancement,(PHY-2),whichprovidesconnectionbetweenthePMDandtheDataLinkLayer.PHYestablishesclocksynchronizationwiththeupstreamcode-bitdatastreamanddecodesthisincomingcode-bitstreamintoanequivalentsymbolstreamforusebythehigherlayers.PHYprovidesencodinganddecodingbetweendataandcontrolindicatorsymbolsandcodebits,mediumconditioningandinitializing,thesynchronizationofincomingandoutgoingcode-bitclocks,andthedelineationofoctetboundariesasrequiredforthetransmissionofinformationtoorfromhigherlayers.InformationtobetransmittedonthemediumisencodedbythePHYusingagrouptransmissioncode;b)aDataLinkLayer(DLL),whichisdividedintotwoormoresublayers1)AnoptionalHybridRingControl(HRC)(ISO/IEC9314-5),whichprovidesmultiplexingofpacketandcircuitswitcheddataonthesharedFDDImedium.HRCcomprisestwointernalcomponents,aHybridMultiplexer(H-MUX)andanIsochronousMAC(I-MAC).H-MUXmaintainsasynchronous125μscyclestructureandmultiplexesthepacketandcircuitswitcheddatastreams,andI-MACprovidesaccesstocircuitswitchedchannels;2)AMediaAccessControl(MAC)(ISO/IEC9314-2),anditsenhancement(MAC-2),whichprovidesfairanddeterministicaccesstothemedium,addressrecognition,andgenerationandverificationofframechecksequences.Itsprimaryfunctionisthedeliveryofpacketdata,includingframegeneration,repetition,andremoval;3)AnoptionalLogicalLinkControl(LLC),whichprovidesacommonprotocolforanyrequiredpacketdataadaptationservicesbetweenMACandtheNetworkLayer.LLCisnotspecifiedbyFDDI;4)AnoptionalCircuitSwitchingMultiplexer(CS-MUX),whichprovidesacommonprotocolforanyrequiredcircuitdataadaptationservicesbetweenI-MACandtheNetworkLayer.CS-MUXisnotspecifiedbyFDDI;c)aStationManagement(SMT),whichprovidesthecontrolnecessaryatthenodeleveltomanagetheprocessesunderwayinthevariousFDDIlayerssuchthatanodemayworkcooperativelyonaring.SMTprovidesservicessuchascon
【中国标准分类号】:M33
【国际标准分类号】:33_180_01;33_180_10;35_100_10;35_110
【页数】:48P.;A4
【正文语种】:英语
【英文标准名称】:Fibreopticactivecomponentsanddevices-Packageandinterfacestandards-SC1x9fibreopticmodules
【原文标准名称】:光纤有源元件及器件.插件和接口标准.SC1x9光纤微型模块
【标准号】:BSEN62148-5-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-06-27
【实施或试行日期】:2003-06-27
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:放大器;基本规范;组件;连接;定义;定义(术语);电气工程;电子工程;外壳;电气连接件用接口;测量技术;机械接口;模数;噪音系数;光学纤维;光学接口;光波导;光学;光电子学;插脚配置;半导体;信号;终端区域;试验
【英文主题词】:Amplifiers;Basicspecification;Components;Connections;Definition;Definitions;Electricalengineering;Electronicengineering;Enclosures;Interfacesofelectricalconnections;Measuringtechniques;Mechanicalinterfaces;Modules;Noisefigure;Opticalfibres;Opticalinterfaces;Opticalwaveguides;Optics;Optoelectronics;Pinconfiguration;Semiconductors;Signals;Terminalareas;Testing
【摘要】:ThispartofIEC62148coversthephysicalinterfacespecificationsfortheSC1×9fibreopticmodulefamily.
【中国标准分类号】:M33
【国际标准分类号】:33_180_30
【页数】:16P;A4
【正文语种】:英语
