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Appendix C: Pin Definition of DB9 Connector
The female DB9 connector of the P2CIM-SER or P2CIM-SER-EU is a standard Data
Communication Equipment (DCE) serial connector. The following table lists the signal of each
pin. Please note that P2CIM-SER and P2CIM-SER-EU do NOT support RS-232 hardware flow
control.
PIN NUMBER SIGNAL
1 None
2 TxD
3 RxD
4 DSR
5 Ground
6 DTR
7 CTS
8 RTS
9 None
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