Garmin GPSMAP® 4210 [14/24] Every device connected to the garmin marine network must be connected to the power supply for the boat this diagram shows the network connections however it does not
Garmin 4212 and GSD 22 sonar black box | Downeast Boat Forum
Garmin GPSMAP 4010 Manuals | ManualsLib
Garmin GPSMAP® 4008 [10/24] Connecting the gpsmap 4000 5000 series chartplotter and the gps 19x antenna to your nmea 2000 network