Manual

ERX-Q77 User’s Manual
ERX-Q77 User’s Manual
39
2.8.4 COM5 RS232/485 SETTING (CN4)
This jumper allows you to select COM5 to support RS232/485
RS232 (Default)
1 2
RS485
1 2
2.8.5 COM3 POWER SETTING (JCOMPWR1)
This jumper allows you to select COM3 to support Ring/+12V/+5V
Ring (Default)
1
2
+12V
1
2
+5V
1
2