Matthew SparbyFor nearly 5 years, I've been trying to figure out what this adapter is supposed to connect to. It's still a mystery. Someday, the right person is going to see this post and they'll finally solve this puzzle.
paulrickards@Cloudscout Looks like a KVM cable to me.
@paulrickards I haven't found any KVM devices that had a configuration like this. It would have been from the first Mac transition era (68k-PPC). I also considered some kind of presentation system.
@Cloudscout I remembered that the same cable was in a lot of stuff I was going to get (but ended up not getting). But I have the pictures of the other cables that likely came with it. Honestly reminds me of something Blackbox would make.
@paulrickards I wonder if it might be for some kind of digitizer tablet like an old Summasketch or similar...
Ryan The Red 🖥️🚲🍺🏳️🌈@Cloudscout @paulrickards It was a wild ride parsing all the replies, but digitizer hit me as a likely possibility.
MufasaWhen you add @paulrickards' photos as related, it overwhelmingly leans towards a mouse utilizing device, like a digitizer.
I've labeled Paul's 4 quadrant picture. Theory follows:
A - PC side serial port to Sun serial port
B - Mac side mouse port to Sun serial port
C - Used in conjunction with A to make PC side PS/2 port to Sun serial port
D - Sun serial port to Sun serial port
They unified a bunch of host mice ports into the Sun serial port.
