Logitech C7 Mouse   (260-1199)   Pinouts               Faxback Doc. # 5444

Logitech C7 Mouse comes with either a standard RS-232C subminiature DB25S 
female connector compatible with the IBM PC/XT, or a DB9S subminiature
female connector compatible with the IBM AT. The connector pin assignments
are illustrated here.

DB25S CONNECTOR           DATA SIGNALS                 DB9S CONNECTOR

       1                  Protective Ground                Shell
       2                  Receive Data (To Mouse)            3
       3                  Transmit Data (From Mouse)         2
       4                  Request to Send                    7
       5                  Clear to Send                      8
       6                  Data Set Ready                     6
       7                  Signal Ground                      5
      20                  Data Terminal Ready                4

(dkh/jej-05/12/94)