B-4 Dell PowerEdge 6100/200 System User’s Guide
A PS/2-compatible mouse works identically to an indus-
try-standard serial mouse or bus mouse except that it has
its own dedicated connector, which frees up both serial
ports and does not require an expansion card. Circuitry
inside the mouse detects the movement of a small ball
and relays the direction to the computer.
Mouse driver software can give the mouse priority with
the microprocessor by issuing IRQ12 whenever a new
mouse movement is detected. The driver software also
passes along the mouse data to the application program
that is in control.
Keyboard Connector
If you reconfigure your hardware, you may need pin
number and signal information for the keyboard connec-
tor. Figure B-4 illustrates the pin numbers for the
keyboard connector, and Table B-3 lists and defines the
pin assignments and interface signals for the keyboard
connector.
Figure B-4. Pin Numbers for the Keyboard
Connector
Mouse Connector
If you reconfigure your hardware, you may need pin
number and signal information for the mouse connector.
Figure B-5 illustrates the pin numbers for the mouse
connector, and Table B-4 lists and defines the pin assign-
ments and interface signals for the mouse connector.
Figure B-5. Pin Numbers for the Mouse
Connector
shell
6
4
3
2
1
5
Table B-3. Pin Assignments for the Keyboard
Connector
Pin Signal I/O Definition
1 KEYDAT I/O Keyboard data
2 NC N/A No connection
3 GND N/A Signal ground
4FUSED_VCC
(+5 V)
N/A Fused supply
voltage
5 KEYCLK I/O Keyboard clock
6 NC N/A No connection
Shell N/A N/A Chassis ground
5
3
1
2
4
6
shell