New Electronics

[Chuck - Raymarine - Moderator]

BosSH,

Q1) I gather from your reply that all of the NMEA 0183 data interfaced to the master MFD will be shared with the repeater MFD via the ethernet cable.
A1) Yes. However, sharing of data received via a MFD's NMEA 0183 ports with other networked MFDs is not limited to NMEA 0183 Talkers which have been interfaced to the Data Master MFD.

A2) You noted that 10hz is required for the MARPA interface to the MFD's from the course computer, and that 10hz is available on the S2G and S3G course computers. I have the S2 autopilot course computer; not S2G (i.e., without the built in gyro). The Smart Pilot Installation Guide for my system gives a 10hz 0.1 degree resolution from NMEA 1 port for the S1 and S2 course computers. Will the NMEA 1 port on my S2 course computer be an appropriate source of heading sensor data for the MFD's?
A2) The NMEA 1 port of the S2 and S3 autopilot course computers support transmission of non-stabilized 1Hz heading data, while the NMEA 1 port of the S2G and S3G autopilot course computers support transmission of stabilized 10Hz heading data. Stabilized 10Hz heading data is required for proper operation of the MFD's MARPA feature. As only non-stabilized 1Hz data is available from the S2 and S3 autopilot course computers, heading data of this same rate is transmitted by the autopilot course computer to SeaTalk, and the autopilot course computer will be interfaced to the new MFD via a SeaTalk to SeaTalkng Converter, there would be no need to interface the autopilot course computer's NMEA 0183 output port to the MFD's NMEA 0183 input port, as it will be receiving 1Hz heading data via its SeaTalkng communications interface.