Pinouts >  Распиновки кабелей и переходников для клавиатур, мышей и т.д.
9 pin D-SUB male connector layout
9 pin D-SUB male connector
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.

  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) connector layout
6 pin mini-DIN male (PS/2 STYLE) connector
На распиновку Serial to PS/2 Mouse adapter есть 3 отзыв(а): 2 положительных и 1 отрицательных.

Эта распиновка
Источник(и) этой и дополнительной информации: Hardware Book, Tomas Ogren, Thomas Eschenbacher
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