| I want to say that old Sunn protocol is different than old Nova protocol. I could be wrong, but back in The Dark Ages there was not much consideration for interoperability of multiplex protocols between manufacturers. You basically had to have an NSI board to talk to your NSI dimmers, or a Sunn board for your Sunn dimmers, and so on for the other 20 different control multiplex protocols, and then add on the three or four oddball analog voltages, and it was a mess.
It's really only been about 20 years in the pro market, probably 10 in the MI market, that compatibility has even been a consideration for manufacturers.
For an NSI board, the places I'd look first are Ebay, Full Compass, Norcostco, Barbizon, and places like that. |