PS/2 to Serial Mouse Adapter pinout
layout
schematic diagram
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PS/2 to Serial Mouse Adapter pinout |
layout |
This adapter will enable you to use a mouse with a 6 pin Mini-DIN (PS/2) connector to a computer with a 9 pin D-SUB (Serial) connector. This requires that the mouse handles both protocols. A mouse like this is sometimes referred to as a combo-mouse.
 6 pin MINI-DIN FEMALE (PS/2 STYLE) connector to the 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.
|  9 pin D-SUB FEMALE connector to the computer | ||||||||||||||||||||
Pinouts.ru > Pinouts and schemes of cables and adapters for input devices (such as mouse, keyboard) > Pinout of PS/2 to Serial Mouse Adapter and layout of 6 pin MINI-DIN FEMALE (PS/2 STYLE) connector and 9 pin D-SUB FEMALE connector Source(s): Hardware Book, Tomas Ogren, Thomas Eschenbacher | correct | |
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