Cisco MC3810 Series Quick Start Manual page 8

Install Chassis and Connect Cables (continued)
6
Connecting the BRI S/T Backup
Port to the Network
If your Cisco MC3810 supports BRI S/T backup,
connect the BRI S/T backup port to the ISDN
network.
Use an 8-conductor straight-through cable (not
included).
Step 1
Connect one end of the cable to the port
labeled BRI 0 S/T on an orange
background.
Step 2
Connect the other end of the cable to the
S/T interface of the NT1.
BRI 0 S/T
T1/E1
1
2
3
4
5
6
BRI S/T backup port
(CB-1D)
8-conductor
straight-through
cable
NT1
S/T
U
Cisco MC3810
ISDN wall jack
(U interface)
Step 3
If the NT1 is not already connected to the
ISDN network, connect the U interface of
the NT1 to the ISDN wall jack
(U interface).
Note: Step 3 should only be necessary in locations
where the U interface is accessible to the user, such as
in the United States.