Furuno FELCOM 250, Operator'S Manual, Page: 157 / 184

7. MAINTENANCE AND TROUBLESHOOTING
7-3
7.3 Communication Unit (CU) LED Lamps
The communication Unit LED lamps indicate the status of the antenna unit and the
CU. Refer to the following table:
Communication Unit Lamp Status
LED Lamp Status Status Note
Power On Power is On Normal state
Off Power is Off
Ready On Tracking satellite Normal state
Flashing (1 sec. in-
terval) Detecting satellite signal Immediately after
power on
Off Searching for satellite Immediately after
power on
Tx On Transmitting Normal state
Off Not transmitting Normal state
Status 1 On Modem in communication
unit is operating normally Normal state
Flashing (1 sec. in-
terval) Problem with the modem Warning
Flashing (0.2 sec.
interval) Modem has significant
problem Error
Status 2 On HUB in communication unit
is operating normally Normal state
Flashing (1 sec. in-
terval) Problem with one part of
the HUB Warning
Flashing (0.2 sec.
interval) HUB has significant prob-
lem Error
Status 3 On Antenna is operating nor-
mally Normal state
Flashing (1 sec. in-
terval) Problem with one part of
the antenna Warning
Flashing (0.2 sec.
interval) Antenna has significant
problem Error
SIM CARD INSIDE
POWER OFF BEFORE INSERTING
OR REMOVING SIM
―
○
POWER
○
I
POWER
1
TX
2 3 4
STATUS
Inmarsat FleetBroadband
READY
POWER
READY
TX
STATUS (1 - 4)