The top of the control deck just lifts up. I put
a few blocks of wood to hold it in place when it's down (it has a snug fit).
The main card on the left is an I-PAC4. This baby almost
has enough inputs for every switch I put on the game, and it turn just plugs
directly into either the USB or PS/2 keyboard port. It works great.
I also got its sister card the Opti-PAC for hooking up the trackball and
spinner. It too is great, and you can also connect 2 more buttons (mouse
left & right) which I used so the trackball can double as a mouse for running
windows. These last two inputs also got me enough inputs for all the
buttons I wanted :^) Again, this card simple turns these things
into a serial mouse. No extra software drivers are needed with
either the I-PAC4 or Opti-PAC - windows just ran them. I
should note that the Opit-PAC allows for controlling 2 sets of trackballs,
spinners, and buttons. I am only using about half of the inputs on this
||Ultimarc I-PAC4 controller for PS/2 or USB.
(PCB on the left side of the image)
||Ultimarc Opti-PAC controller for optical inputs.
(PCB near the center)
||.020 x .187" Crimp On Female Disconnects. About 120 of them.
A larger image then the one above is available in the cabinet image