IBM PC 300GL User Manual
Page 52
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Appendix A. Connector pin assignments
45
Mouse and keyboard port connectors
Serial port connector
Table 28. Mouse port connector pin assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
Data
I/O
4
+5 V dc
N/A
2
Reserved
I/O
5
Clock
I/O
3
Ground
N/A
6
Reserved
N/A
Table 29. Keyboard port connector pin assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
Keyboard data I/O
4
+5 V dc
N/A
2
Mouse data
I/O
5
Keyboard
Clock
I/O
3
Ground
N/A
6
Mouse clock
N/A
Table 30. Serial port connector pin assignments
Pin
Signal
I/O
Pin
Signal
I/O
1
Data carrier detect
I
5
Ground
N/A
2
Receive data#
I
6
Data set ready
I
3
Transmit data#
O
7
Request to send
O
4
Data terminal read
O
8
Clear to send
I
9
Ring indicator
6
4
2
1
3
5
1
5
6
9
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