Interfacing AIS650 with SPX10 and C70

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Technical Forum Murphy95,

Please note that your system diagram indicates that you have a S2G Autopilot Course Computer rather than a SPX10 Autopilot Course Computer installed onboard the vessel.

It also appears that the installation is relying upon the autopilot course computer to bridge NMEA 0183 GPS data to SeaTalk. Please note that autopilot control heads and autopilot course computers are not designed to function as a full NMEA 0183 to SeaTalk data bridges. Autopilot devices will often only bridge data which is required by the autopilot to steer the boat, leaving other NMEA 0183 data items (ex. date/time, etc.) not bridged. We would have typically recommended that the NMEA 0183 output of the GPS sensor and NMEA 0183 output of the autopilot have been interfaced to NMEA 0183 input ports of a NMEA 0183 Multiplexer (ex. Actisense NDC-4, etc.). The NMEA 0183 output of the GPS sensor would have also been interfaced to NMEA 0183 input of the VHF radio and weather decoder. Installation in this manner would support supplying GPS data to the VHF radio and weather decoder without the MFD being powered ON. The NMEA 0183 output port of the NMEA 0183 Multiplexer would have in turn been interfaced the MFD's NMEA 0183 input port.

Addition of an AIS650 would simply be a matter when interfaced in the manner specified above. The MFD's NMEA 0183 input and output leads would be interfaced to the corresponding 38400 BAUD NMEA 0183 input and output leads of the AIS650. The NMEA 0183 output port of the NMEA 0183 Multiplexer would then be interfaced to the 4800 BAUD NMEA 0183 input leads of the AIS650.

The MFD should be updated with C-Series Classic MFD v5.16 software and then the MFD's AIS Objects layer will need to be configured to ON within the MFD's Chart application.