Cisco 1605R Guide d'installation télécharger pdf (Page 57)

Connecting WAN and Voice Interface Cards to a Network 3-9

Setting Jumpers on ISDN BRI Cards

The older BRI S/T WAN interface cards (product numbers WIC36-1B-S/T, WIC36-1B-U,

CPAWIC36-1B-S/T, CPAWIC36-1B-U) have two termination jumpers, labeled J1 and J2.

Before installing this card, ensure that the termination jumpers are set appropriately for

your installation.

The jumpers are factory-conﬁgured in the B position (100-ohms termination). Keep the

jumpers in this position to use the BRI S/T WAN interface card in a point-to-point

connection or as the last device on the line of a passive-bus connection. Set the termination

jumpers to the A position to use the BRI S/T WAN interface card in a passive-bus

connection where it is not the last device on the line. The jumpers are shown in Figure 3-9.

The newer BRI interface cards (product numbers WIC-M1B-S/T or WIC-M1B-U) do not

have termination jumpers.

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Cisco 1605R Guide d'installation Page 57