Com1 Rs-232/422/485 Mode Select (Jp4, Jp6, Jp7); Com1 Data/Power Select (Jp5); Lvds Backlight Pwm/Dc Mode Select (Jp8); Lvds Vdd Select (Jp9) - AXIOMTEK MANO522 Series User Manual

2.3.3

COM1 RS-232/422/485 Mode Select (JP4, JP6, JP7)

These are 3x2-pin (pitch=2.0mm) jumpers for setting COM1 port to operate in RS-232,
RS-422 or RS-485 communication mode.
Function
RS-232 mode
(Default)
RS-422 mode
RS-485 mode
2.3.4

COM1 Data/Power Select (JP5)

This is a 3x2-pin (pitch=2.0mm) jumper. The COM1 port has +5V power capability on
DCD and +12V on RI by setting JP5.
Function
Power: Set COM1 pin 1 to +5V
Data: Set COM1 pin 1 to DCD (Default)
Power: Set COM1 pin 9 to +12V
Data: Set COM1 pin 9 to RI (Default)
2.3.5

LVDS Backlight PWM/DC Mode Select (JP8)

This 3-pin (pitch=2.0mm) jumper enables you to select PWM or voltage control mode for
LVDS backlight control header (CN32). These two control modes are for adjusting the
brightness of LVDS panel.
Function
Controlled by PWM (Default)
Controlled by DC Voltage
2.3.6

LVDS VDD Select (JP9)

The motherboard supports voltage selection for flat panel displays. Use this 3x2-pin
(pitch=2.54mm) jumper to set up VDD power of the LVDS connector. To prevent
hardware damage, before connecting please make sure that the input voltage of LVDS
panel is correct.
Function
+3.3V (Default)
+5V
+12V
Board and Pin Assignments
Setting
JP4 1-2 close
JP6 3-5, 4-6 close
JP7 3-5, 4-6 close
JP4 3-4 close
JP6 1-3, 2-4 close
JP7 1-3, 2-4 close
JP4 5-6 close
JP6 1-3, 2-4 close
JP7 1-3, 2-4 close
Setting
1-2 close
2-3 close
Setting
1-2 close
3-4 close
5-6 close
MANO522 Mini ITX Motherboard
JP4
Setting
1-3 close
3-5 close
2-4 close
4-6 close
JP6 JP7
9