Dip Switch Setting; External Alarm Setting - Furuno FELCOM 12 Service Manual

5.4 DIP Switch Setting

External Alarm Setting

All bits of the DIP switch S1 on the CPU board must be set to "OFF" position. If the
switch is set to "ON" position, the received call unit IC-302 and/or the distress message
controller DMC-5 cannot release alarm signal when a distress and an urgency (including
EGC) message are received.
Note that the distress alert unit IC-303 does not release alarm sound when a distress and
an urgency message are received.
SW No. Alarm type
1
2
3 Distress
4 Urgency
TP1
TP3 TP2
U11 : EE-PROM
BUZZER
U39 : ROM
BATT S1
Figure 5-3 CPU Board (16P0148)
OFF
Always OFF
Always OFF
Output
Output
U44 : DEMOD
ROM
CR 7
CR 8
CR 9
TP4 TP5
1 2 3 4
ON
-
-
No output
No output
5-6
ON
OFF
Remarks
Factory use
Not used