AXIOMTEK MANO842 Series, User Manual

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MANO842 Mini ITX Motherboard
10 Board and Pin Assignments
2.3.7 COM3 Data/Power Select (JP11)
The COM3 port has +5V/+12V power capability on DCD and +5V/+12V on RI by setting
this 5x2-pin p=2.54mm jumper.
Function Setting
Power: Set COM3 pin 1 to +12V level 1-3 close
Power: Set COM3 pin 1 to +5V level 3-5 close
Data: Set COM3 pin 1 to DCD# (Default) 7-9 close
Power: Set COM3 pin 8 to +12V level 2-4 close
Power: Set COM3 pin 8 to +5V level 4-6 close
Data: Set COM3 pin 8 to RI# (Default) 9-10 close