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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
1DataI/O4+5 V dcN/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
3GroundN/A6Mouse clockN/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
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