PS/2 Keyboard and Mouse Connector
The PS/2 keyboard and mouse use right-angle mini-DIN connectors with PC 99 standard coloring (violet
for keyboard and light green for mouse), as shown in Figure 27. The pin assignments for the PS/2
connectors are listed in Table 5.
Figure 27. PS/2 Connector
Table 5. Dual PS/2 Connector Pin Assignments
Pin Name Description
1 KDATA or MDATA Keyboard or Mouse Data
2 N/C Not Connected
3 GND System Ground
4 VDD Power, +5 VDC
5 KCLK or MCLK Keyboard or Mouse Clock
6 N/C Not Connected
7 CGND Chassis Ground
Appendix - 5
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