A.4. Keyboard and mouse interface

The PS-2 keyboard and mouse connectors are positioned on the rear panel of the enclosure. See Figure 3.3 for the location of the connectors.

The pinout of the KMI connectors J30A and J30B is shown in Figure A.5.

Figure A.5. KMI connector

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Table A.3 shows signals on the KMI connectors.

Table A.3. Mouse and keyboard port signal descriptions

PinKeyboard (KMI0, J30B)Mouse (KMI1, J30A)
Signal FunctionSignalFunction
1KDATA_FILTKeyboard data (filtered)MDATA_FILTMouse Data (filtered)
2NCNot connectedNCNot connected
3GNDKBD_FILTGround (filtered)GNDMSE_FILTGround (filtered)
45VF25V (filtered)5VF15V (filtered)
5KCLK_FILTKeyboard clock (filtered)MCLK_FILTMouse clock (filtered)
6NCNot connectedNCNot connected

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