NMEA is a plug-and-play communications standard used for connecting marine sensors and display units within ships and boats. Examples of marine electronic devices to include in a network are GPS receivers, autopilots, wind instruments, depth sounders, navigation instruments, engine instruments, and nautical chartplotters. NMEA 2000 basics set consists 2 T-connectors, outdoor cabel (2 m) , T-cable (2 m), female and male connector.