Installation guide

Connecting to the Network

3-22 Installation

Figure 3-14 Eight-Wire Straight-Through Cable RJ45 Pinouts, Connections

Between Switches and End-User Devices

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 xvfor

informationonobtainingthisdocument.Ifthereisstillaproblem,contact

EnterasysNetworks.Referto“GettingHelp”onpage 1‐8for

details.

6. Repeatsteps1through5above,untilallconnectionshavebeenmade.

Connecting Fiber-Optic Cables to Mini-GBICs

Thissectionprovidestheprocedureforconnecting1‐GigabitEt hernetfiber‐optic

segmentsfromthenetworkorotherdevicestoMini‐GBICMT‐RJorLCportconnectors.

Eachfiber‐opticlinkconsistsoftwofiber‐opticstrandswithinthecable:

Transmit(TX)andReceive(RX)

Thetransmitstrandfromamodule

portconnectstothereceiveportofafiber‐optic

GigabitEthernetdeviceattheotherendofthesegment.Thereceivestrandofthe

applicableMT‐RJportonthemoduleconnectstothetransmitportofthefiber‐optic

GigabitEthernetdevice(showninFigure 3‐15)orLC

cableconnector(shownin

Figure 3‐16).

1 RJ45 device port 3 RJ45-to-RJ45 straight-through cable

2 Other device port

Note: If a link has not been established, refer to Chapter 4 for LED troubleshooting

details. If the problem persists, refer to “Getting Help” on page 1-8 for details on

contacting Enterasys Networks for support.

TX1+

TX2+

RX4-

RX1-

TX4+

RX3-

TX3+

RX2-