Parallel Port Connector; Keyboard And Mouse Connectors - Dell 2100 User Manual

Table B-3. Pin Assignments for the Serial Port
Connectors
Pin Signal I/O
1 DCD I
2 SIN I
3 SOUT O
4 DTR O
5 GND N/A
6 DSR I
7 RTS O
8 CTS I
9 RI I
Shell N/A N/A

Parallel Port Connector

If you reconfigure your hardware, you may need pin
number and signal information for the parallel port con-
nector. Figure B-4 illustrates the pin numbers for the
parallel port connector, and Table B-4 lists and defines
the pin assignments and interface signals for the parallel
port connector.
Figure B-4. Pin Numbers for the Parallel Port
Connector
Definition
Data carrier detect
Serial input
Serial output
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
Ring indicator
Chassis ground
Table B-4. 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 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. Circuitry inside the
Hardware Configuration Features
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
B-127