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Serial connector
Pin No. Signal name I/O Description
1 CD Input Carrier detect
2 RD Input Receive data
3 TD Output Transmit data
4 DTR Output Data terminal ready
5 GND — Ground
6 DSR Input Data set ready
7 RTS Output Request to send
8 CTS Input Clear to send
9 RI Input Ring indicate
Mouse connector
Pin No. Signal name I/O Description
1 DATA I/O Data
2NC — Not connected
3 GND — Ground
4 VCC — Power
5 CLK I/O Clock
6NC — Not connected
Keyboard connector
Pin No. Signal name I/O Description
1 DATA I/O Data
2NC — Not connected
3 GND — Ground
4 VCC — Power
5 CLK I/O Clock
6NC — Not connected
15
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6
4
2
5
3
1
6
4
2
5
3
1