Garmin GSD 21 Serial Wiring for the Garmin GSD 21 to a Single GPSMAP 172/172C

8

Module Sonar 21 GSD

Serial Wiring for the Garmin GSD 21 to a Single GPSMAP 172/172C

	WIRE	WIRE		GARMIN GSD 21
	COLOR	COLOR
FUSE			FUSE	SOUNDER MODULE
2A	RED	RED	2A
	BLACK	BLACK
	BLUE	WHITE/BLUE
	BROWN	WHITE/BROWN		TO
				TRANSDUCER
	ORANGE	ORANGE

BATTERY

10-35 VOLTS DC

Notes:

1.You can extend the serial/power wiring of the GSD 21 power/data cable up to 100 ft (30 m) total length. Use the CANet Extension Cable or 22 AWG, 4-conductor shielded cable for data connections and 18 AWG for power.

2.Ground the drain wire at the display unit. Do not ground the drain wire on the sonar unit.

3.Refer to the GPSMAP 172/172C Owner’s Manual for wiring the GPS 17 sensor and other devices.

4.When crimping the 3-wire connector, use a standard pair of pliers and make sure the button is fully depressed into the connector.

NSTRUCTIONSI NSTALLATIONI