Sony PCV-R532DS - Manual (Page 67)

System Board 59
KEYBOARD and MOUSE Connectors
The KEYBOARD connector and the MOUSE connector are 6-pin female
PS/2-type (mini-DIN) connectors. They have identical pinouts.
KEYBOARD and MOUSE
Pin
Signal Name
1 DATA
2 NC
3 LOGIC GND
4 +5V (fused)
5 CLOCK
6 NC
KY0032.VSD
1 6
1 6
KEYBOARD (optional)
MOUSE