
KTD-S0001-C Page 21 PS/2 Keyboard and Mouse Interface
JRexplus LX User's Guide
10 PS/2 Keyboard and Mouse Interface
The Super-I/O of the JRexplus LX supports a PS/2 keyboard and mouse. A PS/2 keyboard can be directly
connected to this interface. If you intend to use a PS/2 mouse connect a Y-cable to this interface. There are
many different Y-cables available on the market. Some cables have reverse keyboard/mouse signals. If your
keyboard and mouse do not work connect the keyboard to the mouse side and vice versa.
10.1 Connector
The keyboard/mouse interface is available through the standard miniDIN connector X8 (6 pins).
Header Pin Signal Name Function
1 KBDAT Keyboard data
2 MSDAT Mouse data
3 GND Ground
4
VCC
1)
Power +5V
5 KBCLK Keyboard clock
21
4
3
6
5
6 MSCLK Mouse clock
Note: 1) To protect the external power lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.
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