I can confirm that the AAR1 board communicates with the PA door boards over CAN with or without a controller. I have a door simulator with a PA6 board that I can connect to a TAC20 sim or 32 bit sim. Without a controller, I powered the AAR1 card with 24vdc and connected it to the PA6 board with a 3 pin CAN cable. Without changing any parameters I could give the AAR1 discrete open & close inputs and the sim worked great. There are jumpers to select between 24-48vdc and 120vac inputs and it has relay outputs for limits. The actual limits can be on the card edge or external, wired to the connector on the PA board like a linear door with ELI set to 1.
