EMB-7502-COM

EMB-7502-COM

COM1、COM2、COM3、COM4 跳线功能设置(J1,J2,J3 ,J4,J5 ,J6,J7,J8)

J1、J2:

COM1 AS RS232 PORT		COM1 AS RS485 PORT
J1	1-2	J1	3-4、5-6
J2	1-3、2-4	J2	3-5、4-6

J3、J4:

COM2 AS RS232 PORT		COM2 AS RS485 PORT
J3	1-2	J3	3-4、5-6
J4	1-3、2-4	J4	3-5、4-6

J5、J6:

COM3 AS RS232 PORT		COM3 AS RS485 PORT
J5	1-2	J5	3-4、5-6
J6	1-3、2-4	J6	3-5、4-6

J7、J8:

COM4 AS RS232 PORT		COM4 AS RS485 PORT
J7	1-2	J7	3-4、5-6
J8	1-3、2-4	J8	3-5、4-6

COM

PIN#	信号名称
2	RXD
3	TXD
5	GND
1,4,6,7,8,9	NC

COM1-2:

PIN#	信号名称
1	CM1RX_A
2	CM1TX_B
3	GND

COM3-4:

PIN#	信号名称
1	CM3RX_A
2	CM3TX_B
3	GND