Simrad NSS evo3S, Installation Manual

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External alarm
A A
B
C
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
2
1
3
4
5
Unit socket (male)
Pin Purpose
1
Shield
2
NET-S (+12 V DC)
3
NET-C (DC negative)
4
NET-H
5
NET-L
Plan and install an NMEA 2000 network
An NMEA 2000 network consists of a powered backbone from which drop cables connect to
NMEA 2000 devices. The backbone needs to run within 6 m (20 ft) of the locations of all
products to be connected, typically in a bow to stern layout.
The following guidelines apply:
• The total length of the backbone should not exceed 100 meters (328 ft).
• A single drop cable has a maximum length of 6 meters (20 ft). The total length of all drop
cables combined should not exceed 78 meters (256 ft).
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Wiring | NSS evo3S Installation Manual