CCNA思科网络技术学院教程-第4章_线缆测试及局域网、广.ppt

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1、第四章线缆测试及局域网、广域网布线主要内容介绍关于网络布线和线缆测试的知识。core_sw_aISDNCloudLeasedLine/FrameRelay网络连接图例LegendFastEthernet/EthernetISDNDedicatedCore_Server4.1线缆测试1、TIA/EIA-568B标准规定通过10项测试。2、测试工具Fluke测试仪，通断测试器4.2端口识别AUIconnectorsareDB15ISO8877(RJ-45)connectorsandjacksareslightlylargerthanRJ-11phoneconnectorsandjack

2、sFiberConnectorPort4.2端口识别1、交换机常见接口：RJ45以太网接口，10/100/1000BASE-TX堆叠模块，光纤模块，1000BASE-SX，1000BASE-LX/LH，1000BASE-ZX4.2端口识别2、路由器常见接口：Console端口AUX端口高速同步串口RJ45以太或快速以太网接口AUI端口ISDN端口4.3局域网布线连接TheRJ-45Connector188Pair4R41234567WirePairTisTipRisRingPair2T2Pair2R2Pair3T3Pair1R1Pair1T1Pair3R3Pair4T4Pin1、U

3、TP连接器2、UTP直连（正接）WiresoncableendsareinsameorderPinLabel1RD+2RD-3TD+4NC5NC6TD-7NC8NCCable10BaseT/100BaseTStraight-throughPinLabel1TD+2TD-3RD+4NC5NC6RD-7NC8NCServer/Router18Straight-throughCable81Hub/Switch81woobwbwggbrwbr81woobwbwggbrwbr制作跳线注意1、水晶头铜片朝上看线序2、每根线要顶到头3、线缆外皮要夹牢在水晶头内4、卡线时要用力3、UTP跨接（反

4、接）Somewiresoncableendsarecrossed81woowbwgbgbrwbrCable10BaseT/100BaseTCrossoverPinLabel1RD+2RD-3TD+4NC5NC6TD-7NC8NCPinLabel1RD+2RD-3TD+4NC5NC6TD-7NC8NCCrossoverCable181881wggwbwobobrwbrHub/SwitchHub/Switch4、UTP实现直连和跨接UseacrossovercablewhenBOTHportsaredesignatedwithanxorneitherportisdesig

5、natedwithanx.Usestraight-throughwhenonlyoneportisdesignatedwithanX.1x2x3x4x1x2x3x4x1x2x3x4xUTP实现设备互联CrossoverCrossoverStraight-throughStraight-throughStraight-through4.4工作站和服务器1、对等网络2、客户/服务器网络4.5连接广域网WANCore_Servercore_sw_aISDNCloudLegendFastEthernet/EthernetISDNDedicatedcore_sw_bcore_sw_bISLL

6、easedLine/FrameRelayWAN物理层实现PPPFrameRelayEIA/TIA-232EIA/TIA-449X.121V.24V.35HSSIISDNBRI(withPPP)RJ-45NOTE:PinoutsaredifferentthanRJ-45usedincampusHDLCDSLCableModemRJ11FDifferentiatingBetweenWANSerialConnectorsRouterconnectionsNetworkconnectionsattheCSU/DSUEIA/TIA-232EIA/TIA-449EIA-530V.35X.21C

7、SU/DSUEnduserdeviceDTEDCEServiceproviderDataTerminalEquipmentEndoftheuser’sdeviceontheWANlinkDataCommunicationsEquipmentEndoftheWANprovider’ssideofthecommunicationfacilityDCEisresponsibleforclockingDCEDTEModemCSU/DSUSSSSSSDTEDTEDCEDCE