Keyboard And Mouse Connectors; Keyboard Connector; Figure B-4. Pin Numbers For The Parallel Port Connector; Figure B-5. Pin Numbers For The Keyboard Connector - Dell Precision 410 User Manual

13
25
Figure B-4. Pin Numbers for the Parallel Port
Connector
Table B-4. Pin Assignments for the Parallel Port
Connector
Pin Signal
1 STB#
2 PD0
3 PD1
4 PD2
5 PD3
6 PD4
7 PD5
8 PD6
9 PD7
10 ACK#
11 BUSY
12 PE
13 SLCT
14 AFD#
15 ERR#
16 INIT#
17 SLIN#
18–25 GND
1
14
I/O Definition
I/O Strobe
I/O Printer data bit 0
I/O Printer data bit 1
I/O Printer data bit 2
I/O Printer data bit 3
I/O Printer data bit 4
I/O Printer data bit 5
I/O Printer data bit 6
I/O Printer data bit 7
I Acknowledge
I Busy
I Paper end
I Select
O Automatic feed
I Error
O Initialize printer
O Select in
N/A Signal ground

Keyboard and Mouse Connectors

Your 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.
A PS/2-compatible mouse works identically to an
industry-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. Cir-
cuitry 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 made. 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-5 illustrates the pin numbers for the
keyboard connector, and Table B-5 lists and defines the
pin assignments and interface signals for the keyboard
connector.
6
4
2
Figure B-5. Pin Numbers for the Keyboard
Connector
Hardware Configuration Features
shell
5
3
1
B-7