External Alarm - Simrad HS52 Instruction Manual

3.8

External Alarm

20222360 / E
To comply with the IMO Transmitting Heading Device type
approval (not mandatory for GPS Receiver Equipment
approval), the Simrad HS52 has to be connected to an external
alarm. This since the acoustic alarm in the Display unit is not
within the required minimum level of 75 dB. Therefore the
Processing unit has built-in alarm functionality. An alarm will
open the alarm relay, which can be used to trigger an external
alarm. The diagram below shows how an external alarm can be
connected to the Processing unit terminal block P401.
Processing
Unit
3
2
1
ALARM_NOT
COMMON
-
+
FROM UPS SUPPLY
INSTALLATION
BUZZER
+
NC NO
-
-
+
25