IEI Integration LVDS-VGA-R10 - Manual (Page 15)

CN3 (RS-422/485): COM1 ~ COM4 Serial Port
Connectors.
PIN NO DESCRIPTION PIN NO DESCRIPTION
1 TX+(COM1) 2 TX-(COM1)
3 RX+(COM1) 4 RX-(COM1)
5 TX+(COM2) 6 TX-(COM2)
7 RX+(COM2) 8 RX-(COM2)
9 TX+(COM3) 10 TX-(COM3)
11 RX+(COM3) 12 RX-(COM3)
13 TX+(COM4) 14 TX-(COM4)
15 RX+(COM4) 16 RX-(COM4)
COM1 ~ COM4 RS232/RS422/RS485 mode Selection
JP7 COM1 JP8 COM2
1-2 RS232 1-2 RS232
2-3 RS422/485 2-3 RS422/485
JP9 COM3 JP10 COM4
1-2 RS232 1-2 RS232
2-3 RS422/485 2- 3
15
RS422/485