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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) |