Furuno INMARSAT-C FELCOM 18 Operator's Manual page 21

2.3 Distress Alert/Received Call Unit IC-305, Alarm
Unit IC-306
Distress Alert/Received Call Unit IC-305
The DISTRESS button functions to transmit the distress alert. To transmit the distress
alert, press the button (approx. 4 seconds) until its lamp lights continuously. For further
details on how to transmit the distress alert, see section 7.1.
The IC-305 releases the audio alarm and the lamp in the ALARM ACK button flashes
when an EGC distress or urgency broadcast is received. Press the ALARM ACK but-
ton to acknowledge the alarm, and the alarm tone changes. To silence the alarm and
extinguish the lamp, press the F10 key on the keyboard of the terminal unit.
Alarm Unit IC-306
The IC-306 releases the audio alarm and flashes the lamp in its ALARM RESET but-
ton when a telex or e-mail is received. To silence the audio alarm, press the ALARM
RESET button on the IC-306. In addition to telex and e-mail notification, the audio
alarm sounds and the lamp flashes also for the troubles listed below.
• "Unsync" condition (MES is not synchronized with satellite) continues for six min-
utes. (UNSYNC appears at the bottom of the screen.)
• BBER is over 80% (BBER of 080 or higher appears on the system status monitor).
Note: The equipment cannot scan automatically in the above two conditions. Re-
select ocean region referring to section 8.2.
• Printer has no paper.
• No data is received from internal or external GPS navigator.
• Update position alert (manual position input) when position has not been updated
for four hours.
• Equipment trouble (synthesizer, oscillator, etc.)
To acknowledge the audio alarm, press the ALARM RESET button, and the alarm
tone changes. To silence the alarm and the flashing of the button in case of external
equipment abnormality, press the F10 key on the keyboard of the terminal unit.
Distress Alert/Received Call Unit IC-305
ACK
I
2. OPERATIONAL OVERVIEW
MES ALARMS AND
INCOMING MESSAGES
ALARM UNIT
Alarm Unit IC-306
2-5