Select your product to confirm this information applies to you

Connecting the Nexus NX2 Server to a GPSMAP 4xxx, 5xxx, 6xxx, or 7xxx Series Device

To connect a GPSMAP 4xxx, 5xxx, 6xxx, or 7xxx series device to a Nexus NX2 Server, NMEA 0183 will need to be used.

Here is a table that will show what wires should be connected to what port on the NX2 Server.

 Garmin Wire Nexus NX2 Server Port
 RX A (+) - NMEA Receive Positive wire Port 3 (Output A)
 RX B (-) - NMEA Receive Negative wire Port 4 (Output B)
 TX A (+) - NMEA Transmit Positive wire Port 10 (Input A)
 TX B (-) - NMEA Transmit Negative wire Port 11 (Input B)