assembling and cabling network devices05组装电缆网络设备.pptx

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2025-03-02 发布于北京
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assembling and cabling network devices05组装电缆网络设备.pptx

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ConnectingtoanEthernetLANAssemblingandCablingNetworkDevices

NetworkInterfaceCard

ComparingEthernetMediaRequirements

DifferentiatingBetweenConnections

1000BASE-TGBIC

CiscoFiber-OpticGBICsShortwavelength(1000BASE-SX)Longwavelength/longhaul(1000BASE-LX/LH)Extendeddistance(1000BASE-ZX)

UnshieldedTwisted-PairCableSpeedandthroughput:10to1000Mb/sAveragecostpernode:LeastexpensiveMediaandconnectorsize:SmallMaximumcablelength:Varies

RJ-45Connector

RJ-45Jack

Cable10BASE-T/100BASE-TXStraight-ThroughPinLabelPinLabeX+TX-RX+NCNCRX-NCNCStraight-ThroughCableWiresoncableends

areinsameorder.UTPImplementation(Straight-Through)EIA/TIAT568AEIA/TIAT568X+TX-RX+NCNCRX-NCNC

Cable10BASE-Tor100BASE-TXStraight-ThroughCrossoverCableSomewiresoncable

endsarecrossed.PinLabelPinLabeX+TX-RX+NCNCRX-NCNCEIA/TIAT568AEIA/TIAT568BUTPImplementation(CrossoverX+TX-RX+NCNCRX-NCNC

UTPImplementation:Straight-Throughvs.Crossover

CableTester

UsingVarietiesofUTP

ConnectingtoanWANAssemblingandCablingNetworkDevices

WANDevicesRoutersTerminalserversModemsDSU/CSUWANnetworkingdevicesATMswitchesFrameRelayswitchesPSTN

PhysicalLayer:WANs

SerialPoint-to-PointConnections

WAN—MultipleLANs

ConnectingtoanCiscoDevicesAssemblingandCablingCiscoDevices

2500Router—rearviewSerialWANportscanbefixedFixedInterfaces

Console1603Router—rearviewEthernetAUIEthernet10BaseTISDNBRIS/TSerialWANportscanbemodular3640Router—

rearviewModularInterfacesModuleWANInterfaceCard

CablingRoutersforISDNConnectionsDetermineifyouneedaBRIS/TorUInterfaceRoutershaveoneorbothtypesofportsNoteportLabel

CablingRoutersforISDNConnections(cont.)!!!WARNING!!!DonotconnectacableintoanISDNportunlessitisfromanISDNswitchorISDNwalljack.IfyouconnectacablefromanyotherdeviceintotheBRIport,youwillruinthenon-ISDNdevice.CiscoRouterISDNBRIport