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Enterasys Networks A2H124-24P Switch User Manual

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Connecting to the Network

3-20 Hardware Installation

Figure 3-12 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impedance

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butthisisnotnecessary.Astraight‐throughcablecanbe

usedtoconnectbetweentheswitchandanydevice.RefertoFigure 3‐13and

Figure 3‐14forfour‐wireRJ45connections.RefertoFigure 3‐15andFigure 3‐16

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,contactEnterasys Networks.Referto“GettingHelp”on

page 1‐7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.

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