Installation Information
This section of the Appendix provides information on connecting the
GPSMAP 376C to auxiliary devices and removing the antenna.
Connecting the Power/Data Cable
The power/data cable connects the GPSMAP 376C to an
11–35 VDC system and provides interface capabilities for
connecting external devices. The color code in the diagram below
and to the right indicates the appropriate harness connections.
Replacement fuse is a 3AG - 1.5 Amp fuse.
Power/Data Connector on the GPSMAP 376C Unit
Data Out
Blue
Ground
Black
Voice (-)
Orange
Alarm
White
Power
Red
Voice (+)
Brown
Data In
Yellow
Power/Data Connector on the Cable
Data Out
Blue
Ground
Black
Voice (-)
Orange
Alarm
White
Power
Red
Voice (+)
Brown
Data In
Yellow
Yellow:
Data In
Black:
Ground
Red: Power
11–35 VDC
(-)
(+)
Autopilot/
NMEA Device
RXD +
RXD -
GSD 20 or 21
Sounder
(-)
(+)
White/Brown
White/Blue
Blue:
Data Out
Orange
Closed - On,
Open - Off
Switch
GPSMAP 376C Owner’s Manual
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