Cisco 1605-R How To Use Manual page 62

1-Port ISDN BRI Cards
Figure 3-13
Table 3-1
LED
B1
B2
OK
BRI U WAN interface cards also have three LEDs, shown in Figure 3-14 for WIC-1B-U
and Figure 3-15 for WIC36-1B-U, and described in Table 3-2. The B1 and B2 LEDs
indicate call activity on the two ISDN BRI B channels. The NT1 LED indicates
synchronization status of the NT1.
Figure 3-14
3-14 Cisco WAN Interface Cards Hardware Installation Guide
ISDN BRI S/T WAN Interface Card LEDs (WIC36-1B-S/T)
BRI S/T port
LEDs
B1
B2
SEE MANUAL BEFORE INSTALLATION
BRI S/T WAN Interface Card LEDs
Meaning
Active connection on B1 channel.
Active connection on B2 channel.
ISDN port has established a connection
with the central office switch.
ISDN BRI U WAN Interface Card LEDs (WIC-1B-U)
SEE MANUAL BEFORE INSTALLATION
LEDs LED
BRI
S/T
BRI
U