2500 XL  (250-4074)                 Mouse               Faxback Doc. # 1157



Under the Hardware help notes in Flex, for the 2500 XL it states that the
mouse port is a DB-9 connector. It is actually a PS-2 connector and has
6 pins. Please note below the PS-2 connector. It would be appreciated if
this information could be posted under the Help Notes for the 2500 XL.

Keyboard, mouse, and auxiliary device connectors
 PIN ASSIGNMENTS:
  1.  Data                           6   5
  2.  Reserved                     *  ┌─┐  *
  3.  Ground                      4   │ │   3
  4.  +5 Vdc                      *   └─┘   *
  5.  Clock                        2       1
  6.  Reserved                       *   *
___________________________________________________________________________

MOUSE AND LOGITECH DRIVERS

The MOUSE.SYS and MOUSE.COM that is now included with MS-DOS versions 3.3 
in the 2500XL, 2500XL2, and all newer 4000's is a Logitech Mouse Driver. 
When loaded, DOS will present a Logitech Mouse Driver Screen, not a 
MicroSoft Mouse driver screen.

This driver will work fine with the 25-1040A, 25-1040B, and 25-1040C Tandy 
Serial Mouses. it will not work properly with thee original 25-1040 Tandy 
Serial Mouse, they must get the MOUSE.COM and MOUSE.SYS files from 25-4109 
MS-DOS.

If you have the customer turn over the mouse, the catalog number is on the 
bottom of the mouse on the identification plate.

(/tmc-04/25/95)