User manual

Connecting to the Network

SecureStack B3 Installation Guide 3-23

Figure 3-13 Connecting a UTP Cable Segment to RJ45 Port

3. VerifythatalinkexistsbycheckingthattheLink/ActivityLEDisON(solidgreenor

blinkinggreen).

4. IftheLink/ActivityLEDisOFF,performthefollowingstepsuntilitison:

a. Verifythatthe cablingbeingusedisCategory 5orbetterwithanimp edance

between85and111 ohmswitha

maximumlengthof100meters(328feet).

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

properlyconnectedtothesegment.

c. 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 3‐14and 

Figure 3‐15forfour‐wireRJ45connections.RefertoFigure 3‐16andFigure 3‐17

foreight‐wireRJ45connections.

d. Ensurethatthe

twistedpairconnectionmeetsthedBlossandcablespecifications

outlinedintheCablingGuide.Referto“RelatedDocuments”onpage xvifor

informationonobtainingthisdocument.

5. Ifalinkisnotestablishedorthere isnoPoEpower,contactEnterasys Networks.Refer

to“GettingHelp”onpage xviiifordetails.

Repeat

allstepsaboveuntilallconnectionshavebeenmade.

1 RJ45 connector 2 Port 8 3 Port 8 Link/Activity LED

Note: If the cable is connected to one of the PoE RJ45 front panel ports, solid green or

blinking green also indicates that PoE power is available. If the LED is solid amber or

blinking amber PoE power failed. For more details, refer to Chapter 4.