Installation guide

Connecting to the Network
Matrix DFE-Diamond Series Installation Guide 3-15
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 3‐8)tosteptothegroupofinterest(Groups1through4).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. Iftheportistooperateat100 Mbps,category 5cablingmustbeused.
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 3‐9andFigure 3‐10forfour‐wireRJ45connections.Refer
toFigure 3‐11andFigure 3‐12foreight‐wireRJ45connections.
Figure 3-9 Crossover 4-Wire Cable RJ45 Pinouts, Connections Between Hub Devices
Figure 3-10 Straight-Through 4-Wire Cable RJ45 Pinouts, Connections
Between Switches and End User Devices
1 RJ45 device port 3 RJ45-to-RJ45 crossover cable
2 Other device port 4 RX+/RX- and TX+/TX- connections. These
connections must share a common color pair.
1 RJ45 device port 3 RJ45-to-RJ45 straight-through cable
2 Other device port 4 RX+/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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TX+
TX
RX+
RX 2
1
3
6
TX+
TX
2
1
3
6
RX+
RX
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