Programming instructions

338
3300 ICP Technician’s Handbook
FIM
The top LED indicates the status of local FIM. The bottom LED indicates
the status of the remote FIM.
The controller FIM monitors the synchronization of the clock appearing on
the fiber link from the peripheral cabinet or DSU. The FIM in the peripheral
cabinet or DSU monitors the synchronization of the clock appearing on the
fiber link from the controller.
LAN Ethernet Ports
Table 97: Controller FIM LEDs
(LX; MX; MXe; 100-User; 250/700-User)
LED Status Meaning (Both LEDs)
ON In-frame synchronization.
Flashing Out of synchronization OR Tx and Rx fiber optic cables
reversed.
OFF Power off OR held in reset.
Figure 86: Controller LAN Ethernet Port LEDs
(LX; 100/250/700-User)
Figure 87: Controller LAN Ethernet Port LEDs (MX)