Final Wiring Connections - Garmin GMR 21/41 Installation Instructions Manual

Final Wiring Connections

Making the final wiring connections
1. Connect the Black ground (-) wire to the vessel's negative power terminal.
2. Connect the Red 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.
GMR 21/41
Marine Radar
GPS 17
GSD 20
Sounder Module
4
GMR 21/41 MARINE
GPS 17
RADAR
Stand Alone Network
Garmin GMS 10
Marine Network Port Expander
Garmin
GPSMAP MFD
to transducer
Expanded Network
Garmin
GPSMAP MFD
Garmin GDL 30/30A
Marine Weather/Audio
Satellite Receiver
Garmin
GPSMAP MFD
GMR 21/41 Marine Radar Installation Instructions
GA 31