Ps/2 connector – Dell Inspiron 3500 User Manual
Page 60
PS/2 Connector
Use the 6-hole, miniature DIN PS/2 connector to attach PS/2-compatible devices such as a mouse, keyboard, or external numeric keypad.
Pin Assignments for the PS/2 Connector
Pin
Signal
I/O
Definition
1
RED
O
Red video
2
GREEN
O
Green video
3
BLUE
O
Blue video
4
NC
N/A
No connection
5
GND
N/A
Signal ground
6
GND
N/A
Signal ground
7
GND
N/A
Signal ground
8
GND
N/A
Signal ground
9
NC
N/A
No connection
10
GND
N/A
Signal ground
11
NC
N/A
No connection
12
NC
N/A
Reserved
13
HSYNC
O
Horizontal synchronization
14
VSYNC
O
Vertical synchronization
15
NC
N/A
No connection
Shell
N/A
N/A
Frame ground
Pin
Signal
I/O
Definition
1
EXK_MSDATA
I/O
External keyboard/keypad/mouse data
2
NC
N/A
No connection
3
GND
N/A
Signal ground
4
EXK_MSPWR
O
External keyboard/keypad/mouse supply voltage
5
EXK_MSCLK
I/O
External keyboard/keypad/mouse clock
6
NC
N/A
No connection
Shell
N/A
N/A
Frame ground