And, yes, you can route any Mix/Group/Matrix to the remote output sockets, but not inputs directly.
-So, in this scenario, how do I get my Aviom A-net unit hooked to the XLR’s on the AR2412?
I just came across the AR2412 manual where it states the Output Sockets (Line Out) can be used to patch any signal from the Qu to the AR2412. Maybe this an option to communicate from the A-Net to the board.