Cn8: ps/2 keyboard and ps/2 mouse connectors, Cn2: com1 rs232/rs422/rs485 and vga connector, Ps/2 mouse – IBASE MI889 User Manual
Page 17: Ps/2 keyboard, Pin # signal name
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INSTALLATIONS
CN8: PS/2 Keyboard and PS/2 Mouse Connectors
PS/2 Mouse
PS/2 Keyboard
Signal Name
Keyboard
Mouse
Signal Name
Keyboard data
1
1
Mouse data
N.C. 2
2
N.C.
GND 3
3
GND
5V 4
4
5V
Keyboard clock
5
5
Mouse clock
N.C. 6
6
N.C.
CN2: COM1 RS232/RS422/RS485 and VGA Connector
[
Pin #
Signal Name
RS-232
R2-422 RS-485
1 DCD TX- DATA-
2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX-
NC
5 Ground Ground Ground
6 DSR NC
NC
7 RTS NC
NC
8 CTS NC
NC
9 RI NC
NC
10 NC NC
NC
MI889 User’s Manual
13
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