Peripheral Unit; Troubleshoot Fiber Interface Module - Mitel 3300 ICP Technician's Handbook

3300 ICP Technician's Handbook – Release 3.2

Peripheral Unit

Troubleshoot Fiber Interface Module

There are two LEDs on each FIM. The top LED indicates the status
of the FIM itself; the bottom LED indicates the status of the other
FIM (the FIM connected to the far end of the fiber optic cable).
FIM LED States
State
On
Off
Flashing
Notes: 1. The FIM in the 3300 ICP monitors the
synchronization of the clock that appears on the fiber link
coming from the FIM in the peripheral or DSU Cabinet. 2. The
Meaning
In frame synchronization
Power off or held in reset
Out of synchronization (see Notes below) OR Tx or RX
cables could be reversed.
- 138 -