Dell Precision WorkStation 210, User Manual

Page: 173 / 247

Hardware Configuration Features B-9
.H\ERDUGDQG0RXVH&RQQHFWRUV
Your system uses a Personal System/2 (PS/2)-style keyboard 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. 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 made. The driver software also
passes along the mouse data to the application program that is in control.
.H\ERDUG&RQQHFWRU
If you reconfigure your hardware, you may need pin number and signal information for
the keyboard connector. 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.
)LJXUH%3LQ1XPEHUVIRUWKH.H\ERDUG&RQQHFWRU
10 ACK# I Acknowledge
11 BUSY I Busy
12 PE I Paper end
13 SLCT I Select
14 AFD# O Automatic feed
15 ERR# I Error
16 INIT# O Initialize printer
17 SLIN# O Select in
18–25 GND N/A Signal ground
7DEOH%3LQ$VVLJQPHQWVIRUWKH3DUDOOHO3RUW
&RQQHFWRU FRQWLQXHG
3LQ 6LJQDO ,2 'HILQLWLRQ
1
3
5
2
4
6
shell