E120 - Autopilot & GPS

[TravisPWoodard]

I'm wrapping up my upgrade from a C120 to E120. My connections are as follows:

SeatalkHS - HS switch - SR100 & DSM300 - SRA 50/Transducer
Radar - analog radar
Seatalk 2 - NMEA2k backbone (via Mare-005) - Engines/trim tabs - power

That leaves the NMEA 0183 and Seatalk/Alarm Out ports open.

The last two pieces of equipment to hook up are:

1. Raystar 125
2. S2 Course computer (hooked up to fluxgate compass, rudder sensor, ST 8002, and power)

As I understand it, both are able to be hooked up to both ports. I'm currently thinking I will run the GPS to NMEA and the S2 to Seatalk. I believe this will allow direct connections and avoid any converters.

Q1 - will this configuration work and is it optimal?
Q2 - will I be able to control the autopilot from the display or simply use the track feature to goto waypoints?