Installation guide

Connecting to the Network
3-10 Installation
Figure 3-4 Connecting a Twisted Pair Segment to the DFE-Platinum Module
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 3‐4)tosteptothegroupofinterest(Groups1through3onthe
7G4202‐72,orGroups1through5 onthe 7G4282‐49).Eachtimethe GROUPSELECT
buttonispressed,a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 cab ling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 3‐5andFigure 3‐6forfour‐wireRJ45connections.Refer
toFigure 3‐7andFigure 3‐8
foreight‐wireRJ45connections.
1 RJ45 connector 3 Transmit status (TX) LED) 5 GROUP SELECT button
2
RJ45 port connector (port 1)
4
Receive status (RX) LED
COM
OFFLINE/
RESET
GROUP 3
GROUP 1 GROUP 2
CPU
MGMT
1X
6X
7G4202-72
Gb ENET
Â
GROUP
123
GROUP
SELECT
24X
DFE
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