I had to order a door board for a TAC 32. It was a 6300PA3. They sent me a 6300PA6 and some vague instrux on connecting to door board thru a hyper link. I have had to connect via z-modem to replace a CPU on a TAC 20. Are they wanting me to do a similar process to this board. I thought that I could access my door card thru the UIT on the controller, but it will not let me. Keeps saying"awaiting response" I have my WD and my VBUS like I should, but now I am wondering if I am missing a job file or if the door board has its own UIT. Also wondering if door parameters are on the USB left in the controller.