Q29204: Serial Mouse Pin-Outs
Article: Q29204 Product(s): See article Version(s): 1.00 Operating System(s): MS-DOS Keyword(s): ENDUSER | | mspl13_basic Last Modified: 5-JUN-1988 The serial mouse includes a 9- and 25-pin adapter cable to work with a standard 9- or 25-pin IBM serial port. The following are the pin-outs of 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 The serial mouse is a data communication equipment (DCE) device, and is a female device (i.e., 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 other functions as well.
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