External Alarm - Simrad NSS evo2 series Installation Manual

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Power Control master/slave bus
Turning on the 'master' device turns on connected 'slave' devices.
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1 NSS evo2 displays
2 Power cable
3 Radar Interface box
4 Sonic Hub
5 Ground wire
6 Positive wire
7 Power control wire
If the left NSS evo2 turns on using the power button and is set as the Power Control Master,
it will output voltage on the Power Control bus to power on the other NSS evo2, the Radar
Interface, and the SonicHub.
If the right NSS evo2 is set to Power Control Slave, it cannot be powered down using its own
power button, but can be set to standby.
If the left NSS evo2 (Power Control Master) is off, the right NSS evo2 can be turned on using
its own power button, but won't turn on any other devices.
To turn on all network devices from either NSS evo2, both devices can be configured as Power
Control Masters.
¼ Note:
If an NSS evo2 has its power state controlled by another device or ignition switch (and is
set as Slave), it can't be powered down independantly. It can however be placed in a standby
state to save power.

External alarm

An external alarm can be connected to one or more NSS evo2 displays on the network, via
the blue wire. The external alarm can be a small peizo buzzer connected directly, or a horn
siren connected via a relay.
Alarms are configured globally in the system i.e they can be configured on any one
networked multifunction device or IS40 instrument, and be seen, heard, and acknowledged
from all devices. Individual devices can also be configured to not sound their internal buzzer,
but still display the alarm information. For information on configuring alarms, refer to the
Alarms section in the Operator manual.
Wiring | NSS evo2 Installation Manual
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