If you decided to go with any WITTUR door operator (AMD, SGV, LD-16, etc), make sure that the MIDI/SUPRA card includes a CAN bus adapter card. If that's the case, you can connect it to the ICON serially. If you wittur operator has a KONE board on it, you will either have to setup discrete, or replace the board with a straight WITTUR board (MIDI/SUPRA).