[CA] [CA11] ST1 to STng to NMEA2000

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Dfloeter,

The backbone which you have constructed is most definitely not correct. Spur sockets are not used to join backbones and as indicated the backbone must feature two and only two termination plugs ... one located within the unoccupied backbone socket found at the two opposite ends of the backbone. Please click here to view a FAQ addressing how backbones which have been constructed from networking components of differing manufacturers may be joined to one another. Please additionally note that it may not be possible for the Garmin chartplotting products to the legacy Raymarine autopilot by using a SeaTalk to SeaTalkng Converter.

Should the Raymarine products be correctly interfaced the third party products featuring a NMEA 2000 communications interface via a SeaTalk to SeaTalkng Converter and the autopilot report No Navigation when commanded into Track mode (Navigation must first be commanded on the chartplotter), then it would be recommended that the autopilot and its control head be disconnected from the SeaTalk bus which is in turn connected to the SeaTalk to SeaTalkng Converter, Instead the autopilot course computer will be interfaced via NMEA 0183 communications to the Garmin chartplotting products. The autopilot's control head will be interfaced to and powered by one of the SeaTalk ports of the autopilot course computer. When so configured, instrument data will be passed to the Garmin chartplotter, which will in turn transmit this data to the autopilot via NMEA 0183 communications.