Originally Posted by Samantha ann
Alex, just wondering. Several of us on another thread are having no success getting our Garmin 492/498 gps to send route info to our Raymarine AP. Any ideas? We are stuck and you sound like you may know.
OK, 492/498 only has one nmea output, the other is a CAN output (nmea2000).
So the connection to the autopilot should be made with the BLUE cable of the power/data cable, this goes to the positive (+) NMEA IN terminal of the autopilot.
Depending the model that would be the back of the display (ST4000/5000 series) , the back of the cockpit
connector (in tiller pilots) or the connectors in the course computer (S1/3, Type100/300, X series, et al)
Then connect negative (shield) to the - NMEA IN as well. This should be done bridging the BLACK Garmin negative cable and sending it to the pilot, but as shield is shared all around the boat, if for some reason this becomes difficult, I sometimes bridge NMEA IN - with the negative from 12V in the AP. should work, but the correct way to do it is with a direct connection of both + and - between the equipment
you intend to share data.
Remember to program the Comm SubTab for NMEA IN/OUT. good luck. alex