Connecting to the Network
Matrix DFE-Gold Series PoE Module 4H4285-49 Installation Guide 3-15
c. VerifythatthecablingbeingusedisCategory5UTPwithanimpedancebetween
85and111ohms.Iftheportistooperateat100 Mbps,category 5cablingmustbe
used.
d. Verifythatthedeviceattheotherendofthetwistedpairsegmentison,and
properlyconnectedtothesegment.
e. VerifythattheRJ45connectorsonthetwistedpairsegmenthavetheproper
pinoutsandcheckthecableforcontinuity.Typicall y,acrossovercableisused
betweenhubdevices.Astraightthroughcableisusedtoconnectbetween
switchesorhubdevicesandanenduser(computer).RefertoFigure35and
Figure 36forfourwireRJ45connections.RefertoFigure37andFigure 38for
eightwireRJ45connections.
Figure 3-5 Four-Wire Crossover Cable RJ45 Pinouts, Connections Between Hub
Devices
1RJ45 device port 3RJ45-to-RJ45 crossover cable
2Other device port 4RX+/RX- and TX+/TX- connections. These
connections must share a common color pair.
TX+
TX
RX+
RX 2
1
3
6
TX+
TX
2
1
3
6
RX+
RX
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