Seems I was wrong about the Skyview - from their install manual ...
SkyView serial ports are configured in the Serial Port Setup Menu (SETUP MENU > SYSTEM SETUP > SERIAL PORT SETUP). SkyView serial ports have four parameters that must be defined:
• Input Device
• Input Function
• Baud Rate
• Output Device
Note that sometimes a parameter will be defined as NONE on the screen. For example, when a serial port is configured as only an output, the input device and input function will both be set to NONE.
So bidirectional comms would be fantastic ...
(Happy to beta test it...)