How to switch the RS485/RS422/RS232 mode of serial to ethernet converter USR-N510?
RS232 Mode
Dial switches are both down, the number 00. (up means 1, down means 0)
RS485 Mode
Dial switches are both up, the number 11. (up means
RS422 Mode
The left dial switch is up, the right side is down, the number 10. (up means 1, down means 0)