Simon,
>do I understand that correctly: all setups with detached frontpanel will have to put a CAT-Interface at the >radio site and the remote TRX is then controlled via CAT
Think you have it wrong, there are 3 comports, com0-1-2, com0 can be used to connect TTL level from TS480/2000 and ICOM-CIV (TTL), com0 has also the transparant mode.
I think that it must be possible to connect nomatter what radio who was CAT via RS232 to the ttl input from com0 (mode=transparant) BUT ONLY via rs232/ttl converter, maybe the software also need some changes.
Mike allready sells these RS232/TTL converters for the Webswitch
Guy ON4AOI