User`s manual

MANO873 Series All-In-One Mini ITX Board
Board and Pin Assignments 11
2.3.6 COM1 RS-232/422/485 Mode Setting (JP11, JP12, JP14)
Use these jumpers to set COM1 port to operate as RS-232, RS-422 or RS-485
communication mode. When these jumpers are set to operate as RS-422 or RS485
mode, please make sure COM1 is on data mode (see section 2.3.5)
JP11 JP12 JP14
2.3.7 PS/2 Power Selection (JP15)
Use JP15 for setting PS/2 power signal to standby or system power.
2.3.8 Mini Card Interface Selection (JP16)
Use JP16 for setting Mini Card to PCI-Express or mSATA .
Function
Setting
RS-232 mode
(Default)
JP11 3-5, 4-6 close
JP12 1-2 close
JP14 3-5, 4-6 close
RS-422 mode
JP11 1-3, 2-4 close
JP12 3-4 close
JP14 1-3, 2-4 close
RS-485 mode
JP11 1-3, 2-4 close
JP12 5-6 close
JP14 1-3, 2-4 close
Function
Setting
Standby power +5V (Default)
1-2 close
System power +5V level
2-3 close
Function
Setting
PCI-Express Interface (Default)
1-2 close
mSATA Interface
2-3 close