Garmin GMR 20/40 Final Wiring Connections

Final Wiring Connections

Once the scanner is installed and the cable routed, you are ready to connect the Power, Ground and Marine Network.

1.Connect the Black Ground (-) wire to the vessel’s negative power terminal.

2.Connect the Power (+) wire (with fuse holder) to the vessel’s positive power terminal.

3.For a stand-alone network (MFD and Radar only), attach the RJ-45 Marine Network Cable to the RJ-45 socket on the back of the MFD. For an expanded network (MFD, Radar, GMS 10), attach the RJ-45 Marine Network Cable to an open RJ-45 socket on the GMS 10 Network Power Expander. Tighten the RJ-45 locking ring clockwise until it is firmly sealed.

GPS 17	GMR 20/40 MARINE
	RADAR

GARMIN

GPSMAP MFD

Stand Alone Network

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Expanded Network

4 GMR 20/40 Radar Installation Instructions