Posted by Dr D on 3, 2001 at 4:40 PM:
In Reply to: Pin-outs revisited posted by Darren Harris on 3, 2001 at 4:28 PM:
I don't know if the wiring is the same but if you look in the "What's New" section there is a link for attaching a Happ's trackball/spinner directly to the electronics of a mouse and connecting that to the PS/2 port.
This might only work with the Happ's ones.