Keyboard And Mouse Connectors; Keyboard Connector; Mouse Connector; Figure B-4. Pin Numbers For The Keyboard Connector - Dell 4100 User Manual

Table B-2. Pin Assignments for the Parallel
Port Connector
Pin Signal I/O
1 STB# I/O
2 PD0 I/O
3 PD1 I/O
4 PD2 I/O
5 PD3 I/O
6 PD4 I/O
7 PD5 I/O
8 PD6 I/O
9 PD7 I/O
10 ACK# I
11 BUSY I
12 PE I
13 SLCT I
14 AFD# O
15 ERR# I
16 INIT# O
17 SLIN# O
18-25 GND N/A

Keyboard and Mouse Connectors

The system uses a Personal System/2 (PS/2)-style key-
board and supports a PS/2-compatible mouse. Cables
from both devices attach to 6-pin, miniature Deutsche
Industrie Norm (DIN) connectors on the back panel of
your computer. The keyboard connector is on the bottom;
the mouse connector is on the top.
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
B-4 Dell PowerEdge 4100/180 and 4100/200 Systems User's Guide
Definition
Strobe
Printer data bit 0
Printer data bit 1
Printer data bit 2
Printer data bit 3
Printer data bit 4
Printer data bit 5
Printer data bit 6
Printer data bit 7
Acknowledge
Busy
Paper end
Select
Automatic feed
Error
Initialize printer
Select in
Signal ground
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 num-
ber and signal information for the keyboard connector.
Figure B-4 illustrates the pin numbers for the keyboard
connector, and Table B-3 lists and defines the pin assign-
ments and interface signals for the keyboard connector.
2
1
Figure B-4. Pin Numbers for the Keyboard
Connector
Table B-3. Pin Assignments for the Keyboard
Connector
Pin Signal I/O
1 KBDATA I/O
2 NC N/A
3 GND N/A
4 FVcc N/A
5 KBCLK I/O
6 NC N/A
Shell N/A N/A

Mouse Connector

If you reconfigure your hardware, you may need pin
number and signal information for the mouse connector.
4
shell
6
5
3
Definition
Keyboard data
No connection
Signal ground
Fused supply voltage
Keyboard clock
No connection
Chassis ground