IBASE MB941 User Manual
Page 19
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INSTALLATIONS
MB941 User’s Manual
15
FAN3: System Fan2 Power Connector
CN1: PS/2 Keyboard and PS/2 Mouse Connectors
Mouse (top)
Keyboard (bottom)
Keyboard
Signal
Pin #
Mouse
Signal
Keyboard data
1
Mouse data
N.C.
2
N.C.
GND
3
GND
5V
4
5V
Keyboard clock
5
Mouse clock
N.C.
6
N.C.
CN2: COM1 RS232/RS422/RS485 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
Pin #
Signal Name
1
Ground
2
+12V
3
NC
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