Furuno MFD8 Installation Manual page 23

Wiring Information
Pin No.
18 Light green
17 Pink
16 Purple
15 White
14 Gray
13 Yellow
12 Black/White
11 Black
10 Blue/White
9 Blue
8 Green/White
7 Dark Green
6 Orange/White
5 Orange
4 Brown/White
3 Brown
2 Red/White
1 Red
Color
NET-C IN (0V)
NET-S IN (+12V IN)
Shield
BUZZER or EVENT IN
SPEED-ALARM C
SPEED-ALARM H
+12V
GND
RD3-B
RD3-A
TD3-B
TD3-A
GND
GND
RD2-B
RD2-A
TD2-B
TD2-A
Function
[(-)NMEA3 IN]
[(+)NMEA3 IN]
[(-)NMEA3 OUT]
[(+)NMEA3 OUT]
[(-)NMEA2 IN]
[(+)NMEA2 IN]
[(-)NMEA2 OUT]
[(+)NMEA2 OUT]
23
Remark (Port No.)
NMEA 2000 Power IN:
When 12V DC power is
applied on these pins, the
NMEA2000 port will
provide power (up to 1
amp)
External Buzzer Output or
MOB/Event Input (Contact
Closure)
Speed alarm contact.
Can trigger and external
alarm or device when
speed reaches a setup limit
External buzzer power
ONLY (100mA Max)
GND for Event/MOB Input
Port 3
Port 2