Aaeon BOXER-6651, User Manual, Page: 53 / 110

Chapter 2 – Hardware Information 39
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15 NC
16 NC
17 NC
18 NC
*COM3 RS-232/422/485 can be set by JP13.
*COM4 RS-232/422/485 can be set by JP12.
*When JP13 is set to RS485, BIOS needs to set to RS485 Driver Mode in the
Serial Port 3 Configuration.
*When JP12 is set to RS485, BIOS needs to set to RS485 Driver Mode in Serial Port 4
Configuration.
*When JP13 is set to RS232/422, BIOS needs to set to RS232/422 Driver Mode in Serial
Port 3 Configuration.
*When JP12 set to RS232/422, BIOS needs to set to RS232/422 Driver Mode in Serial
Port 4 Configuration.
2.4.31 Phone Jack for Line in/Out (CN33)
Pin Pin Name Signal Type Signal level
1 RIGHT_OUT OUT
2 GND_AUDIO GND
3 LOUT Jack Detect
4 LEFT_OUT OUT
5 GND_AUDIO GND