Keyboard And Mouse Connectors - Dell Precision WorkStation 610 User Manual

49-50 GND
51-52 TRMPWR
53 RSVD
54 GND
55 ATN
56 GND
57 BSY
58 ACK
59 RST
60 MSG
61 SEL
62 C/D
63 REQ
64 I/O
65 D8
66 D9
67 D10
68 D11

Keyboard and Mouse Connectors

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 processor 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 connector. Figure B-6
illustrates the pin numbers for the keyboard connector, and Table B-6 lists and defines the pin assignments and interface signals
for the keyboard connector.
N/A Signal ground
N/A Terminator power
N/A Reserved
N/A Signal ground
I/O SCSI attention
N/A Signal ground
I/O SCSI busy
I/O SCSI acknowledge
I/O SCSI reset
I/O SCSI message
I/O SCSI select
I/O SCSI command/data
I/O SCSI request
I/O SCSI in/out
I/O SCSI data bit 8
I/O SCSI data bit 9
I/O SCSI data bit 10
I/O SCSI data bit 11