Here are a couple pics of my Catbox.
http://www.safestuff.com/catbox2.jpg
http://www.safestuff.com/catbox1.jpg
The Catbox has a 44 pin ribbon connector that goes the the test connector on
the game boards. It also has three BNC plugs for the required connections to
the Clock and other lines. The final connector is for the data probe.
All schematics and manuals are available at Spies.
Scott