ATX-6951-COM

ATX-6951 COM1，COM2-COM10，J9

COM1：

Pin	信号名称
1	DCD
2	RXD
3	TXD
4	DTR
5	GND
6	DSR
7	RTS
8	CTS
9	RI

• 当COM1，COM2设置为RS232/RS422/RS485时，主板插针定义：

Pin	RS232（默认）	RS422	RS485
1	DCD	TX-	DATA-
2	DSR	NC	NC
3	TXD	TX+	DATA+
4	RTS	NC	NC
5	RXD	RX+	NC
6	CTS	NC	NC
7	DTR	RX-	NC
8	RI	NC	NC
9	GND	GND	GND
10	GND	GND	GND

• COM1，COM2 跳线功能设置（J1，J2，J3，J4，J5，J6）：

Pin	COM1 AS RS232 PORT	Pin	COM1 AS RS422 PORT	Pin	COM1 AS RS485 PORT
J4	1-3 2-4	J4	3-5 4-6	J4	3-5 4-6
J5	1-3 2-4	J5	3-5 4-6	J5	3-5 4-6
J6	1-2	J6	3-4	J6	5-6 7-8
Pin	COM2 AS RS232 PORT	Pin	COM2 AS RS422 PORT	Pin	COM2 AS RS485 PORT
J1	1-3 2-4	J1	3-5 4-6	J1	3-5 4-6
J2	1-3 2-4	J2	3-5 4-6	J2	3-5 4-6
J3	1-2	J3	3-4	J3	5-6 7-8

COM2-COM10：

信号名称	Pin	Pin	信号名称
DCD#	1	2	DSR#
SIN	3	4	RTS#
SOUT	5	6	CTS#
DTR#	7	8	RI#
GND	9	10	COM_PIN10

J9：

Pin	信号名称
1	+5V
2	COM_PIN10
3	+12V