ATX PS/2 Keyboard and PS/2
Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse are located at J8. See the table
on the right for pin denitions. (The
mouse port is above the keyboard
port. See the table on the right for pin
denitions.)
PS/2 Keyboard and
Mouse Port Pin
Denitions
Pin# Denition
1 Data
2 NC
3 Ground
4 VCC
5 Clock
6 NC
Serial Ports
COM 1 and COM 2 are header con-
nectors on the motherboard. See the
table on the right for pin denitions.
SerialPortPinDenitions
Pin # Denition Pin # Denition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground 10 NC
A. Keyboard/Mouse
B. COM1
C. COM2
B
A
C
B
A
C