It's amazing how something so simple can baffle me; until I look at the big picture.
I have the lid off and it's very simple; hard wired normalling and simple TRS jacks, no make-on-break contacts or anything.
All this will make the installation a lot easier, now that I begin to understand the thing and how to use it ;-) I have to figure out the balance of normalling vs. number of channels needed. I also have a 52 channel APA patchboard that uses a special punch-down tool on the back; it's also wired normal, but I can remove those wires on both of them as needed. I got power and signal distro; next will be the X-Desk for mixing it. That translates into maybe 50 or so in/out lines on Db-25's; not big, but big enough. I have 4x1 and a 12x2 mixers for instruments.
I'll wing it as I go; this is all from scratch. First to set up is basic signal connection and at least 2-buss recording.