Enterasys Networks 2S4082-25-SYS Manual

A SERVICE OF

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Connecting to the Network

4-8 NAC Controller PEP Installation

Figure 4‐5showsconnectingatwistedpairsegmenttothe2S4082‐25module.Itisassumedthat

thechassispoweristurnedontoprovidepowertothemodule.RefertoFigure 4‐5andproceedas

follows:

1. Ensurethatthedeviceconnectedtotheotherendofthesegmentispowered

ON.

2. ConnectthetwistedpairsegmenttothemodulebyinsertingtheRJ45connectoronthe

twistedpairsegmentintotheappropriateRJ45portconnector.

Figure 4-5 Connecting a Twisted Pair Segment to the NAC Controller PEP

3. VerifythatalinkexistsbycheckingthattheportRX(Receive)LEDisON(flashingamber,

blinkinggreen,orsolidgreen).IftheRXLED

isOFFandtheTX(Transmit)LEDisnot

blinkingamber,performthefollowingstepsuntilitison:

a. Toviewthereceiveandtransmitactivityonagroupofsegments,presstheGROUP

SELECTbutton(seeFigure 4‐5)tosteptothegroupofinterest(Groups1and2).

Each

timetheGROUPSELECTbuttonispressed,theGROUPLEDlightsupinsequence,

indicatingwhichGroupisselected.Thereceiveandtransmitactivityforthatgroupof

segmentsisthenindicatedbytheRXandTXLEDsforeachsegment.

b. VerifythatthecablingbeingusedisCategory5

UTPwithanimped ancebetween85and

111 ohms. Fortheporttooperateat100or1000Mbps,Category 5cablingmustbeused

andinstalledproperly.

c. Verifythatthedeviceattheotherendofthetwistedpairsegmentisonandproperly

connectedtothesegment.

d. VerifythattheRJ45connectors

onthetwistedpairsegmenthavetheproperpinoutsand

checkthecableforcontinuity.Typically,acrossovercableisusedbetweenhubdevices.A

straight‐throughcableisusedtoconnectbetweenswitchesorhubdevicesandanend

user(computer).RefertoFigure 4‐6andFigure 4‐7for

four‐wireRJ45connections.Refer

toFigure 4‐8and Figure 4‐9foreight‐wireRJ45connections.

1 RJ45 connector 2 RJ45 port connector (port 1) 3 GROUP SELECT button