Chapter 2: Installation
ATX PS/2 Keyboard and PS/2 Mouse Ports
The ATX PS/2 keyboard and the PS/2 mouse are located at J28. See the table on the right for pin defi nitions. (The mouse port is above the key- board port. See the table on the right for pin defi nitions.)
Serial Ports
PS/2 Keyboard and
Mouse Port Pin
Defi nitions
Pin# Defi nition
1Data
2NC
3Ground
4VCC
5Clock
6 NC
Serial Port Pin Defi nitions
COM1 (J31) is a connector located on the IO Backpanel and COM2 is a header located at J13. See the table on the right for pin defi nitions.
Pin # Defi nition
1DCD
2RXD
3TXD
4DTR
5Ground
Pin # Defi nition
6DSR
7RTS
8CTS
9RI
10 NC
A 
B
C
(Pin 10 is available on COM2 only. NC: No Connection.)
A. Keyboard/Mouse
B. COM1
C. COM2
