
49 PPC-S155T User Manual
Appendix A Pin Assignments
A.12 COM1
A.13 COM2
Table A.12: COM1
Pin Signal
1 DCD
2RxD
3TxD
4DTR
5GND
6DSR
7RTS
8CTS
9RI
5
4
3
2
1
9
8
7
6
Table A.13: COM2
Pin Signal
RS-232 RS-422 RS-485
1DCDTX-DATA-
2RXTX+DATA+
3TXRX+---
4DTRRX----
5GNDGND---
6 DSR --- ---
7 RTS --- ---
8 CTS --- ---
9 RI --- ---
15
9
6
324
78
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