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Wiring Information
Pin No. Color Function Remark (Port No.)
18 Light green NET-C IN (0V) NMEA 2000 Power IN.
When 12V DC power is
applied on these pins, the
N2K port will be powered
(up to 1 ampere)
17 Pink NET-S IN (+12V IN)
16 Purple Shield
15 White BUZZER or EVENT IN External Buzzer Output or
MOB/Event Input (Contact
Closure)
14 Gray SPEED-ALARM C Speed alarm contact.
Can trigger and external
alarm or device when
speed reaches a setup limit
13 Yellow SPEED-ALARM H
12 Black/White +12V External buzzer power
ONLY (100mA Max)
11 Black GND
GND for Event/MOB Input
10 Blue/White RD3-C Port 3
9 Blue RD3-H
8 Green/White TD3-B
7 Green TD3-A
6 Orange/White GND
5 Orange GND
4 Brown/White RD2-C Port 2
3 Brown RD2-H
2 Red/White TD2-B
1 Red TD2-A