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DIP Switches on the CH Trackball Pro or Kensington Expert Mouse 2.0?

Posted: 02 Dec 2018, 14:13
by zerker
Hello folks. I have two classic, full-sized trackballs for my Retro PC, but both of them have banks of DIP switches, and I cannot find a manual or documentation anywhere online to describe what is what. Photos follow:

The Kensington Expert Mouse 2.0 (serial):

And the CH Products Trackball Pro (PS/2):

Any help would be appreciated!

Posted: 02 Dec 2018, 17:31
by madrobby
For the CH Trackball Pro, I believe here's a scan of the relevant manual:


Posted: 02 Dec 2018, 17:34
by zerker
Thanks, though that looks to be for a newer edition with four extra DIP switches. However, it will still be very helpful, as the switches I have probably have similar features. It should just be a matter of testing to see which ones correspond to the listing in the scan.

Posted: 02 Dec 2018, 17:38
by madrobby
Yeah, just noticed that the IMGUR think says "Note: The Gen1 DT225 has DIFFERENT DIP Switch Settings" :/

Posted: 02 Dec 2018, 18:01
by zerker
Well, here are the results of my testing:
1: Swaps Left/Right Buttons
2: Unknown
3: Unknown
4: Unknown
5: Double Cursor Speed
6: Half Cursor Speed
7: Disable Left Click Lock Button
8: Disable Right Click Lock Button (though only if 7 is also set)

2-4 didn't do anything obvious. I tried setting all three with the click lock buttons disabled, but I still didn't get a unique middle mouse click to register. If anyone has any more information, it would be great. At least I found the double-speed switch though :)

Posted: 19 Dec 2018, 22:52
by stratokaster
Click-lock buttons look very useful, sounds like a perfect solution for drag-and-drop with a trackball.