H126242 TRACKPOINT II KEYBOARD CANNOT BE ON SERIAL PORT
From Louis Ohland@21:1/5 to All on Mon Apr 18 13:28:17 2022
SYMPTOM:
If the pointer connector of the Trackpoint II Keyboard is
connected to the serial port (using a mini-DIN to serial-port
conversion device), the pointer function of the keyboard may
not function. System board damage may also result.
PROBLEM ISOLATION AIDS:
The TrackPoint II keyboards can only be attached to
systems which have a PS-style mouse port.
OBI Option P/N's:
p/n92G7458 - Quiet Touch Keyboard w/TrackPoint II
p/n92G7461 - 101-Key Enhanced Keyboard w/TrackPoint II
p/n13H6710 - 101-Key Enhanced Keyboard w/TrackPoint II (Black)
These keyboards may be installed on IBM and non-IBM systems.
If the pointer connector has been attached to the serial port,
the system board could be damaged. This may require problem
determination to be performed on a known-good system, with
the pointer connector attached via the prescribed PS-style
mouse port.
FIX:
The TrackPoint II keyboards should NOT be attached to
computers which don't have a PS-style mouse port.
The TrackPoint II interface and serial ports are not
compatible. The TrackPoint II pointing device can only
be attached via a PS-style mouse port.