The FI5002 is an NMEA2000 Junction Box for use with NavNet 3D and the FI50 series of intrument displays, as well as the FI5001 Wind Sensor. The FI5002 features 2 NMEA2000 backbone ports, as well as 6 NMEA2000 ports. Its power requirements are less than 2A on a 12VDC system.