The USB to NMEA Serial Adapter data cable is a simple and effective method for connecting NMEA 0183 compatible marine equipment to a Mac (GPS, AIS, Autopilot, VHF). Each data cable contains a small internal electronic circuit board, housed in the USB connector. This circuitry provides full bi-directional conversion of the serial data and also includes Tx and Rx LEDs which give a visual indication of data traffic on the data cable. The other end of the data cable is bare, tinned wire ended connections which can be quickly connected to the NMEA 0183 compatible equipment with suitable connector block or terminals or crimp-on butt connectors. Each cable is 60" long.

Wire color Name Connect to GPS or AIS or RADAR or Instruments Connect to Autopilot or VHF Radio
Yellow Receive NMEA data out (Data+)  
Orange Transmit   NMEA data in (Data+)
Black Ground Ground (Data-) Ground (Data-)

US$69.95 (including shipping)

Installation Instructions  
Install Driver FTDI Driver
Connect NMEA device (i.e GPS, AIS, RADAR, Instruments, Autopilot, VHF Radio)  
Plug adapter into Mac USB port  
Launch navigation software The port to select will be USBSerial-XXX. Rate will be 4,800 except AIS which will be 38,400