External Alarm; External Alarm Setup - Simrad NSS12 Installation Manual

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Connecting power |

External alarm

Blue wire on power cable:
An external alarm can be connected to one or more displays on the network. The external
alarm can be a small peizo buzzer connected directly, or a horn siren connected via a relay.
Alarms are confi gured globally in the system i.e they can be confi gured on one display and
seen, heard and acknowledged from all displays. How ever the external alarm siren can be
enabled or disabled on individual displays. For information on confi guring alarms, refer to the
Alarms section in the Operation manual.
Yellow
Blue
1 A max
35 V DC max
For sirens that draw more than 1 Amp use a relay
12 - 24 V DC
Black
Red (FUSE)
Yellow
Blue

External Alarm Setup

The SIREN ENABLED option must be set in order for the unit to drive the external alarm when
an alarm condition arises.
NSS Installation Manual
Black
Red (FUSE)
+ _
12 - 24 V DC
+ _