Advantech PPC-A84/A120-X5X user manual 14 COM2

C.14 COM2

			1	2	3	4	5
			6		7	8	9
	Table C-14: COM2
	Pin	Signal
		RS-232	RS-422					RS-485
	1	DCD	TX-					DATA-
	2	RX	TX+					DATA+
3		TX	RX+				---
4		DTR	RX-				---
5		GND	GND				---
6		DSR	---				---
7		RTS	---				---
8		CTS	---				---
	9	RI	---				---

142PPC-A84/A120 User’s Manual