Stowe's junction box multiplexes data from its NMEA0183 input with data from its internal converters (wind,
depth, and temperature) and its combined output is present on the Dataline bus.
The Stowe Dataline bus is NMEA0183 compliant. Just add a return wire for keypad functions and general
lighting control.
But I'm sorry to tell you that Stowe uses a deprecated
wind sentence (VWR), that is, the system will not understand another manufacturer's
wind data (MWV) directly. Some gateways still perform that conversion.