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Description
Color/State
LED
Inactive or no connection
Off
Link status (L)
Fault/loop condition
Amber
Ok with activity or no activity
Green
Inactive port status
Off
Speed (S)
Activity or no activity
Green
OC-3 and OC-192 Interface Module LEDs
The table below summarizes the LEDs for the OC-3 and OC-192 interface module.
Table 46: Interface Module LEDs
Description
Color/State
LED
Disabled/no power to IM
Off
Power (PWR)
Enabled and power rails on IM in range
Green
Disabled/power-down
Off
Status (STAT)
Failure (on at reset)
Red
Booting (if local CPU)
Amber
Operational
Green
SFP receiving good remote signal
Green
Carrier/Alarm (C/A)
Remote or local alarm activated
Yellow
SFP ready and operating normally
Green
Active/Loopback(A/L)
SFP port in loopback state
Yellow
T1/E1 Interface Module LEDs
Table 47: 16-port T1/E1 Interface Module LEDs
Description (two LEDs for eachT1/E1 port)
Color/State
LED
Active
Green
Active
Standby
Blinking green
Operationally down; card is disabled or shut down
Off
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
180
Troubleshooting
OC-3 and OC-192 Interface Module LEDs