Bob,
There are two serial ports on the RRC, however one of them (COM2) is reserved for CAT, so only
COM1 is available for other devices.
I use serial servers for all my other devices that I have installed over the years (Amplifiers, SteppIR,
rotors, etc.). I prefer devices from Lantronix, but others do the job as well. They are simple to set
up and work seamlessly using a virtual serial port on the control end.
An alternative are the dedicated serial server devices from Microbit, the RC-1216H. See
http://www.remoterig.com/wp/?page_id=1010#tabs-3 for details. These have advantages with
ease of use, but are a more expensive solution and don't provide virtual serial port drivers for your
control PC.
BTW, this subject has been mentioned many times on this forum, so you may wish to use the search
function to find more tips.
73,
Mitch DJ0QN / K7DX