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1. HOW THE BRIDGE ALARM
SYSTEM OPERATES
The FURUNO BR-1000 Bridge Alarm System has the following purposes:
• Bridge Alarm: Control all warning notices from the navigation equipment installed
on the bridge.
• Watch Safety Alarm: Monitor bridge activity to detect operator disability which can
cause marine accidents.
1.1 Bridge Alarm
The bridge alarm controls all the warning notices from the navigation equipment in-
stalled on the bridge. When an equipment gives an alarm, the alarm is sent in three
stages.
• 1st stage: When a device connected to this system sends an alarm, the system
gives 30-second long visual (flashing lamp) and audible (buzzer) alarms from the
Bridge Panel and the Timer Reset Panel to tell the Officer of the Watch (hereafter
called OOW) on the bridge.
• 2nd stage: If the OOW does not acknowledge the 1st stage alarm, the Cabin Panel
in the living quarters of the selected back-up officer and the Cabin Panels fitted in
public areas give audible and visual alarms.
• 3rd stage: if no one acknowledges the 2nd stage alarm within the selected time in-
terval (90-180 s), all the Cabin Panels fitted in living quarters of all navigation offic-
ers and public areas give audible and visual alarms.
To stop the audible alarm, press the BUZ STOP key on the Bridge Panel. The audible
alarm stops at the Bridge Panel, Timer Reset Panel and the equipment that gave the
alarm.
After you stop the audible alarm, press the ACK key to acknowledge the alarm. The
Bridge Panel displays the visual alarm “Pending” and the visual alarm at the Timer Re-
set Panel is stopped. The “Pending” indication remains on the Bridge Panel until the
cause for the alarm is removed. Stop the audible alarm BEFORE
you acknowledge
the alarm. If the buzzer is not stopped first, the visual alarm is not stopped when you
press the ACK key.