The mission has been accomplished. My enhanced kissutil caters for a new command-line parameter -O followed by the output serial port name and minor additional code in conjunction with KISSPORT 8002 2 in the DW configuration, without any need for channel or other data modification. Speed needed to be set using the -s parameter to match that in use by DW.? I didn't provide separate speeds for the optional serial TCP input and serial output but that could easily be provided by a extra command-line parameter, eg -S.
