I/O Connectors 113
PS/2-Compatible Keyboard and Mouse Connectors
The PS/2-compatible keyboard and mouse cables attach to 6-pin, miniature DIN connectors.
Figure B-3 illustrates the pin numbers for these connectors and Table B-3 defines the pin
assignments for these connectors.
Figure B-3. PS/2-Compatible Keyboard and Mouse Connector Pin Numbers
8 CTS I Clear to send
9 RI I Ring indicator
Shell N/A N/A Chassis ground
Table B-3. Keyboard and Mouse Connector Pin Assignments
Pin Signal I/O Definition
1KBDATA or
MFDATA
I/O Keyboard data or mouse data
2 NC N/A No connection
3 GND N/A Signal ground
4 FVcc N/A Fused supply voltage
5 KBCLK or
MFCLK
I/O Keyboard clock or mouse clock
6 NC N/A No connection
Shell N/A N/A Chassis ground
Table B-2. Serial Connector Pin Assignments (continued)
Pin Signal I/O Definition
D3835bk0.book Page 113 Monday, August 24, 2009 4:34 PM
