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31
VTB-EM
WIRING OPTION EXTENDED SOUNDER
&
BEACONS
In some cases, the installation of a second signaling device is necessary. Usually this is caused by the
lack of visibility of the optical alarm beacon in the protected area. In a noisy environ, the optical
alarm signal is the leading warning element. By more than a single sounder beacon follow the
connection diagram below. The recommended setting gives the best and deviating alarm signal
compared to the usual evacuation alarm signal on vessels.
Recommended setting
sounder/beacon
C/D
–
-
OFF
+ IN
- IN
TONES
VOLUME
ONLY
BEACON
ON/OFF
A B 0 0 0 0 0 ON
HIGH C+D
MID D+A
LOW A+B
10K
END OF LINE
MONITORING
RESITOR
1
2
3
4
5
6
C D 1 1 1 1 1 OFF
TONES
VOLUME
ONLY
BEACON
ON/OFF
A B 0 0 0 0 0 ON
HIGH C+D
MID D+A
LOW A+B
1
2
3
4
5
6
C D 1 1 1 1 1 OFF
+ IN
- IN
+ OUT
- OUT
A B 0 0 0 0 0 ON
C D 1 1 1 1 1 OFF