
TracPhone V3-IP User’s Guide
104
Troubleshooting
LED Indicators
Status lights on the front of the ICM indicate the current status of the
system and can help you identify problems quickly.
Figure 8-5 Status Lights
During normal operation, all status lights should be lit green. The
following tables explain what the different light conditions indicate.
CONTROL UNIT Light
The table below explains what the CONTROL UNIT light indicates.
Light is...
Indicates
Description
Off
Off
ICM is powered off or no power input
Green
OK
Good input power; ICM is operational
Green,
flashing
No comms
Communication error inside the ICM
Orange
Bad power
Bad power supply circuit inside the
ICM
Red
Fault
Error detected during ICM self test;
try turning the ICM off, then back on
ICM