Northstar
Explorer 657
Installation and Operation Manual
76
Black
Yellow
Blue
Connections
Power (18-4)
External alarms (18-4)
NavBus instruments (18-9) and VHF
radio (18-8)
NMEA out to instruments (18-10)
GPS antenna (18-5), Petrol/gasoline
sensors (18-7), NMEA in (18-10)
Sonar transducer (18-6)
Display unit
(18-3)
Power/data cable
Pin
Wire
Function
1
Black
Ground:
-
power in, NMEA ground. (The cable has two black wires which are
connected inside the cable and it does not matter which black wire you use)
2
Brown
Not used
3
White
NMEA out
4
Blue
NavBus
-
5
Red
Power in, +10.5 V DC to +30.5 V DC
6
Orange
NavBus
+
7
Yellow
Auto power in
8
Green
External alarm out, 30 V DC 200 mA maximum.