slave units. If a unit is set to power control slave, it cannot be powered down using its own
power key while a power control master unit is turned on. Pressing the power key will set the
unit to standby. If all power control masters are off, power control slaves can be turned on
and off using their own power key. However, this will not turn on any other units connected
to the power bus.
External alarm
For sirens that draw more than 1 A, use a relay.
Key Purpose Color
A External alarm output Blue
B Siren and relay
C Buzzer
NMEA 2000
The NMEA 2000 data port allows receiving and sharing of a multitude of data from various
sources.
Connector details
Unit socket (male)
Pin Purpose
1 Shield
2 NET-S (+12 V DC)
3 NET-C (DC negative)
4 NET-H
5 NET-L
Wiring | NSO evo3S MPU Installation Manual
15
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