Microsoft KB Archive/29204

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Serial Mouse Pinouts
'Article ID: Q29204

Creation Date: 25-APR-1988

Revision Date: 16-SEP-1996' The information in this article applies to:


 * Microsoft Serial Mouse, versions 1.0 and 2.0

SUMMARY

The Microsoft Serial Mouse includes a 9-pin and a 25-pin adapter cable to work with a standard 9-pin or 25-pin IBM serial port. The following are the pinouts for the mouse cables:

Connectors

Function   9-pin      25-pin

RXD        pin 2      pin 3

TXD        pin 3      pin 2

RTS        pin 7      pin 4

GND        pin 5      pin 7

DTR        pin 4      pin 20 More Information: The serial mouse is a data communication equipment (DCE) device, and is a female device (that is, it has holes in its connectors). Because it is a DCE device, the port's functions should be one-to-one when making a cable for a nonstandard serial port.

For example, the mouse's RXD should connect to your serial port's RXD and the mouse's TXD should connect to the serial port's TXD. This is true for all other functions as well.
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KBCategory: kbhw

KBSubcategory:

Additional reference words: 8.10 8.20 9.00 pin-out pin out