Bruce:
NCE runs at a slow data rate well within the RS232 spec for up to a 50' cable run with a decent quality cable.
I've installed an almost 50 footer for a friend using a no-name FTDI USB to PC (maybe 3') and the rest RS232 using Cat5e for my wire. Works like a champ
Avoid running the RS232 along side any house power wiring or other wiring able to put noise on the RS232...
Jim Albanowski
