Jay my setup is as follows.
Furuno GPS
Furuno FA100 AIS
Furuno SC 30 Sat Compass
Furuno Depth sounder
Furuno NAV Tex Reciver
Furuno wind direction and speed
All of the above are routed through a Actisense NDC-4 multiplexer then routed to the laptop. All sentences are NMEA 183. This has proven to be a stable platform over the years. I started with Captain Voyager ECS but have switched over to Roas Point ECS.
The Furuno SC 30 sat compass only puts out its sentence as NMEA 2000 I do have to route it through a NMEA 2000 to 183 converter which is the actisense NGW-1
Hope this helps. Let me know if you need further information
Ed
S/V Kari
W32