Dell PowerEdge 7150 - Manual (Page 6)

Keyboard and Mouse Connectors
The 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.
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 connector. Figure B-4 illustrates the pin numbers for the keyboard
connector and Table B-3 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 defines the pin assignments and interface signals for the mouse connector.
Figure B-5. Pin Numbers for the Mouse Connector
8 PD6 I/O Printer data bit 6
9 PD7 I/O Printer data bit 7
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
Table B-3. Keyboard Connector Pin Assignments
Pin Signal I/O Definition
1 KBDATA I/O Keyboard data
2 NC N/A No connection
3 GND N/A Signal ground
4 FVcc N/A Fused supply voltage
5 KBCLK I/O Keyboard clock
6 NC N/A No connection
Shell N/A N/A Chassis ground