Cisco Cisco VN 2900 Network Adaptation Interface 설치 가이드

The ISDN BRI S/T WIC LEDs are shown in 

, and 

. The functions of the 

LEDs are described in 

Before connecting a WIC to the network, ensure that the WIC is installed in the router, the equipment is 
properly grounded, and you have the proper cables for connecting the WIC to the network. This section 
describes the preparation necessary before connecting an ISDN BRI S/T WIC to the network.

Install the Cisco WIC according to the instructions in 

Older WIC36-1B-S/T, WIC36-1B-U, CPAWIC36-1B-S/T, or CPAWIC36-1B-U interface cards mount 
only in the W1 slot of a 2-slot network module and provide a single BRI interface. Newer WIC-1B-S/T 
or WIC-1B-U interface cards can mount in either slot of a 2-slot network module. For more information 
on BRI network modules, see the network module documentation located at:

Ensure that the equipment you are working with is properly grounded. For instructions on grounding 
your WIC, see 

Use a straight-through RJ-48C-to-RJ-48C BRI cable (not included) to connect an ISDN BRI S/T WIC 
to a network.

The WIC-1B-S/T, WIC-1B-S/T-V3, and WIC-1B-U interface cards do not have termination jumpers.

For long-distance point-to-point configuration, and for the last station in point-to-multipoint 
configuration, use an external 100-ohm terminator.

B1

ISDN connection on B1 channel when blinking.

B2

ISDN connection on B2 channel when blinking.

OK

ISDN port has established a connection with the central office switch (D channel).