[CA] SPX computer conecting to Garmin 4212

[Chuck - Raymarine - Moderator]

tgsail1,

As indicated earlier within my initial response to this thread, it is recommended that third party products be interfaced via NMEA 0183 communications to the SPX autopilots. Please note that it would be necessary for a device to have more than one NMEA 0183 input port or utilize a NMEA 0183 multiplexer for a NMEA 0183 listener to receive data from more than one NMEA 0183 talker ... this is a NMEA 0183 communications restriction ... not a Raymarine restriction. It commonly possible for the NMEA 0183 output of a device to be paralleled to support supplying more than one listener with data from a single NMEA 0183 talker. The NMEA 0183 output of Raymarine products may typically be paralleled to support supplying data to up to three NMEA 0183 listeners without need for a NMEA 0183 expander. It is recommended that the manufacturer of your NMEA 0183 talker be contacted to verify the number NMEA 0183 listeners which may be supplied by your NMEA 0183 talker.

Alternatively, should one have system featuring a NMEA 2000 backbone, then it would be be recommended that the SPX autopilot be interfaced to a NMEA 0183 to NMEA 2000 data bridging device (ex. Actisense NGW-1-ISO) which in turn will be interfaced as a spur to the NMEA 2000 backbone.