Alessandro: > On Sun, 27 Aug 2017 at 18:03:08 +0100 > Simon Hobson <li...@thehobsons.co.uk> wrote: > [...] > > AFAIK the underlying protocol for the keyboard is the same (or near enough > > for simple conversion) between the two connector formats to allow for easy > > conversion between plugs. > > They are, adaptors are purely mechanical.
PC/AT and PS/2 have the same protocol and electrical spec. except they have different connectors. The protocol is bidirectional. PC/XT has the same pinout and connector as PC/AT but not the same protocol and they won't work together. The protocol is keyboard -> pc only. See page 16 of http://kbdbabel.sourceforge.net/doc/kbdbabel-vortrag-vcfe80-20070429.pdf and https://en.wikipedia.org/wiki/IBM_PC_keyboard for details. Regards, /Karl Hammar ----------------------------------------------------------------------- Aspö Data Lilla Aspö 148 S-742 94 Östhammar Sweden +46 173 140 57 _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
