ERX-Q77 User’s Manual
38 ERX-Q77 User’s Manual
2.8.2 AT/ATX Power Mode Select (PSON1)
This jumper allows you to select ATX Mode or AT mode .
2.8.3 COM1 RS232/422/485 SETTING (CN2)
This jumper allows you to select COM1 to support RS232/422/485
RS232 (Default)
RS422
RS485
