Installation Guide
Page 9
GSD 20 Sonar Module BASIC WIRING FOR THE GARMIN GSD 20 TO A SINGLE GPSMAP 172/172C FUSE 5A WIRE COLOR RED BLACK BLUE BROWN ORANGE WIRE COLOR RED FUSE 2A BLACK WHITE/BLUE WHITE/BROWN ORANGE GARMIN GSD 20 SOUNDER MODULE TO TRANSDUCER BATTERY 10-35 ...VOLTS DC Notes: 1. All other devices. 3. Do not terminate the end of the extension run. Power and ground wires require 18 AWG. Use 4-conductor, shielded wiring for runs over 30' (9.1 m), the drain wire must be connected to the GPSMAP 172/172C Owner's Manual for wiring the GPS...
GSD 20 Sonar Module BASIC WIRING FOR THE GARMIN GSD 20 TO A SINGLE GPSMAP 172/172C FUSE 5A WIRE COLOR RED BLACK BLUE BROWN ORANGE WIRE COLOR RED FUSE 2A BLACK WHITE/BLUE WHITE/BROWN ORANGE GARMIN GSD 20 SOUNDER MODULE TO TRANSDUCER BATTERY 10-35 ...VOLTS DC Notes: 1. All other devices. 3. Do not terminate the end of the extension run. Power and ground wires require 18 AWG. Use 4-conductor, shielded wiring for runs over 30' (9.1 m), the drain wire must be connected to the GPSMAP 172/172C Owner's Manual for wiring the GPS...