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Source(s) of this and additional information: Hardware Book, Tomas Ogren, Thomas Eschenbacher

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Serial to PS/2 Mouse adapter connector pinout connector or cable wiring scheme

9 pin D-SUB

male connectorat the mouse

This adapter will enable you to use a mouse with a 9 pin D-SUB(Serial) connector to a computer with a 6 pin Mini-DIN (PS/2)connector. This requires that the mouse handles both protocols.A mouse like this is sometimes referred to as a combo-mouse.

The Serial Mouse uses a RS-232 style interface with -5 to -12 VDC as

logical 1 and +5 to +12 VDC as logical 0. The PS/2 mouse interface is a

TTL-style interface, which uses 0 - +2 VDC as logical 0 and +3 - +5

VDC as logical 1.

In addition - and to make things worser - the RS-232 is an

asynchronous interface, the PS/2 interface is a synchronous, where the

data is sent along with a clock signal. It uses a simplified 4-wires serial

interface with +5VDC (for the transceiver), GND, keyboard / mouse

clock and keyboard / mouse data. The data and clock line can be used

from the keyboard / mouse controller and the attached device as well

following a particular handshake, which defines which is the active

sender and which is the receiver. So: it is not *that* easy conversing

serial mouse to PS/2 and vice versa.

The dual mode mice have an automatic logic detection and sort of

adaptive interface electronic, which detects whether the mouse is

attached to a serial port or a PS/2 port and set the output drivers

accordingly.

Want to add or correct something here?Edit this page!

Mini-DIN D-SUB+5V 4 4+7+9 DTR+RTS+RI

Data 1 1 CD

Gnd 3 3+5 TXD+GND

Clock 5 6 DSR

6 pin mini-DIN male (PS/2

STYLE) connectorat the computer

Related pinouts:

PC serial port RS232pinout

Mouse (PS/2)

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Pinouts.ru > Keyboard, Mouse and other input devices cables and adapters schemes > Pinout of Serial to PS/2 Mouseadapter and layout of 9 pin D-SUB male connector and 6 pin mini-DIN male (PS/2 STYLE) connector. Is this documentcorrect or incorrect?

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