Cabletron Systems CSX1200 Manual

A SERVICE OF

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USER’S GUIDE

66 CyberSWITCH

CABLING

Note that the module consists of four pairs of numbered RJ45 ports; you must properly connect the

CSX1200 BRI ports to the corresponding U4 S/T interface ports of each pair on the module. We

provide four 6-inch, category 5, twisted-pair cables (with RJ45 connectors) for this purpose:

1. Using the twisted-pair cables, connect BRI port 1 to the S/T interface port labelled number 1,

BRI port 2 to S/T interface port number 2, and so on. The module then converts the S/T

interface to a U interface for each pair of ports.

2. Next, use the category 5 straight-through interface cables (with RJ45 connectors) to link the U-

port in each pair to the service provider’s ISDN jack.

Note: For network safety, use only 26AWG or heavier (i.e., a lower numerical value) cable for all

CSX1200 and U4 interfaces.

CONSOLE

10Base-T

AUI

SLOT 1

SLOT 2

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TELEPHONE

SWITCH

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