办公以太网和工业以太网的区别

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1、IndustrialVSOfficeEthernetContents以太网历史一些统计数字结构化布线交换机的物理特性拓扑结构和冗余带宽组播因素VLANs虚拟局域网优先级区别服务故障设备的替换网络管理结论Definition“只有一个以太网”什么是工业以太网?将以太网技术用于工业领域将以太网和TCP/IP作为工业通讯技术和协议History1973–FirstEthernet–XeroxPARC2.94Mb/s1975–FirstUSpatent–Xerox1980–Ethernetv1–Digital,Intel,Xero

2、x10Mb/s1982–Ethernetv2–Digital,Intel,Xerox1985–IEEE802.31989–ISOStandard880231990–10BaseT(twistedpair)1994–10BaseF(fibre)1995–100BaseT/F100Mb/s1997–FullDuplex1998–1000Mb/s2005–PowerOverEthernet2006–10Gb/s……–40/100Gb/sCommunicationTrendinIndustrialEnvironmentsFiel

3、dLevelManagementLevelCorporateLevelInterbusLoopASIInterbusSeriplexProfibusDPProfibusFMSCANCCLinkControlNetDeviceNetSDSWorldFIP/FIPLonWorksETHERNETIEC/SP50H1IEC/SP50H2HARTProfibusPAProcessMeasurementandControlLevel工业通讯为什么选择以太网?以太网是开放的标准.以太网使网络的垂直集成成为可能.对比现场总线，以太网提

4、供了更大的通讯带宽以满足多应用集成的需求主要的以现场总线为工业通信技术的制造商转而投奔各自基于标准以太网的工业:DeltaV（Emerson）Modbus/TCP（Modbus）EtherNet/IP（ControlNetDeviceNet）ProfiNet（Profibus)FFHSE（FoundationFieldbus）PowerLink(CANOpen）AspectsofIndustrialEthernet工业以太网和商用以太网区别所在：Environment环境Operation运行Maintenance维护Ma

5、nagement管理一些统计数字Source:Datacom,NetworkManagementSpecialAroundtwothirdsofallfailuresarecausedbyfaultsinnetworkcomponentsInvestinginoperationalsafetypaysPhysicalDataLinkNetworkTransportSessionPresentationApplication8%10%35%25%12%7%3%ApplicationprogramsNetworkoperati

6、ngsystemNetworkcomponentsHardware17%Software7%Support73%Miscellaneous3%TotalCostofOwnershipofaNetworkover5yearsSource:GartnerGroup结构化布线结构化布线的好处简化设计产品可选择余地大兼容性好增加可靠性易于维护结构化布线标准ISO/IEC11801EN50173ANSI/TIA/EIA568-B术语CD=CampusDistributorBD=BuildingDistributorFD=Floo

7、rDistributorMD=MachineDistributor(new:IntermediateDistributor(ID))TO=TelecommunicationOutletCP=ConsolidationPointCablingStructureOfficeIndustryOfficebuildingBDCDBDFDTOTOPrimarycablingSecondarycablingTertiarycablingProductionhallFDTOMDTOMDTOTOMDBDLayer1Layer2(Laye

8、r3)Layer4CPTOPhysicalCablingStructureOffice:Industry(3or4layers):FO(500)E9..10/125orG50(62,5)/125FO(500m)E9..10/125orG50(62,5)/125CDBDFDTOCDBDFDMDFO(150