The Psion Link Protocol (for Psion 3, aka SIBO)

The information provided here is outdated, because better and more accurate information especially for EPOC is available. But nevertheless it was the thing that started the ball rolling.

Version 1998-08-18

I actually guessed most of the protocol out of two hex dumps... Sample 1 and Sample 2.

More detailled and accurate information and implementations can be found at: