Installation guide

Trunk Cards 4-39
Network Trunk Module
Figure 4-23 BC-T1 Faceplate
Table 4-17 BC-T1 Connections and Status LEDs
Connector/Indicator Function
T1 input/output Female DB-15 connector for T1 line.
LOS light (red) Indicates loss of signal at the local end.
Red alarm light (red) Indicates loss of local E1 frame alignment, or it indicates loss of packet
alignment on the NTM.
Yellow alarm light (yellow) Indicates loss of frame alignment at remote end or loss of packet alignment
(NTM).
AIS light (green) Indicates the presence of all ones on the line.
Fail light (red) Indicates an error occurred. First, reset the card with the resetcd f
command to clear the error. If the LED comes on again, contact the TAC
through Cisco Customer Engineering.
Active: light (green) Indicates the card is in service with active circuits.
BC-T1
Fail (red)
Active (green)
T1 input/output
LOS (red)
Red alarm (red)
Yellow alarm (yellow)
AIS (green)
H8316