Yes, but then it wouldn't be called RS232, it would be call ascii text. RS232 is NOT a protocol, like TCP/IP, but it is a physical interface like 568A. The RS232 interface comes in several different flavours such as DB9 or DB25 and with an original distance limitation of 25ft.

I still say the big power of the CT was in its IR libraries and routing.

I loved the fact that I could program one keypad and then download it to every keypad in the house and everything would just work.
I never got to a point where I even thought of using 232 with a one way control system to control the CT series. I just dont see the benefit of it.

I have been doing RTI along with B&K since the first Sonance K2 hit the market, and that was a sweet setup. I then added the T2 and IRF6 and now with all the current RTI doodads I am not a B&K dealer anymore... damn.

I did get a fair amount of nice 12-30 zone systems done with K4's, T3's, RP6's, and U1's before I switched companies though, so I did get to play around with it quite a bit.

God I love code 128....