Com Port Header(Com1); Com Port Header (Com2) - Advantech EPC-U2117 User Manual

2.2.24

COM port header(COM1)

For RS232:
Pin Signal
1 DCD#
3 RXD
5 TXD
7 DTR#
9 GND
For MDB (option):
Pin Signal
1 NC
3 RXD
5 TXD
7 NC
9 GND
2.2.25

COM port header (COM2)

For RS-422/485:
Pin Signal
1 COM2_422_485_TX-
3 COM2_422_485_TX+
5 COM2_422_RX+
7 COM2_422_RX-
9 GND
EPC-U2117 User Manual
Pin Signal
2 DSR#
4 RTS#
6 CTS#
8 RI#
10 NC
Pin Signal
2 NC
4 NC
6 NC
8 NC
10 NC
Pin Signal
2 NC
4 NC
6 NC
8 NC
10 NC
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