AST RESEARCH, INC.         TECHNICAL BULLETIN #0865               09-20-93




         POWER STATION WITH EXTERNAL KEYBOARD AND MOUSE CONNECTIONS


When a Power Exec is connected to a Power Station, the following are the only
valid external keyboard and mouse combinations.  Please note: the Power
Exec's SmartPoint trackball must be removed for any of the following
combinations to work.

    * Serial mouse alone
    * PS/2 mouse alone
    * PS/2 keyboard alone
    * AT keyboard alone
    * Serial mouse and PS/2 keyboard
    * PS/2 mouse and PS/2 keyboard using Y adapter
    * PS/2 mouse and AT keyboard

If the above configuration recommendations are not adhered to, the system
will not function properly, and it may experience hardware errors such as
strange characters on the screen