FDX, short for Fast Data eXchange is a proprietary maritime communication protocol by Nexus Marine AB.
It describes how data points from sensors are to be sent across an RS485 serial bus to displays. FDX was originally developed in the 1990s, and is now mostly seen as a legacy protocol. The GND10 gateway from Garmin translates FDX into
NMEA 2000 NMEA 2000, abbreviated to NMEA2k or N2K and standardised as IEC 61162-3, is a plug-and-play communications standard used for connecting marine sensors and display units within ships and boats. Communication runs at 250 kilobits-per-second and allows ...
, to be able to continue using Nexus sensors on more recent
NMEA 2000 NMEA 2000, abbreviated to NMEA2k or N2K and standardised as IEC 61162-3, is a plug-and-play communications standard used for connecting marine sensors and display units within ships and boats. Communication runs at 250 kilobits-per-second and allows ...
networks.
References
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External links
FDX introduction from Nexus Marine* http://www.cruisersforum.com/forums/f13/nexus-bus-or-fdx-protocol-164575.html
Github: Reverse engineered FDX parser
Global Positioning System
Computer buses
Marine electronics