User manual

Chapter 2 Installation
- 10 - EC7-1817LNAR
LCD Backlight Control Connector
The board provides one 1x4Pin LCD backlight control connector (Pitch: 2.0mm); the
pin definitions are as follows:
Pin Signal Name
1 +12V
2 LCD_BKLTCTL
3 LCD_BKLTEN
LCDB1
4 GND
VCC12 -------Backlight Power (The current is limited below 1A);
LCD_BKLTCTL---Backlight Control (The signal is output as PWM signal via North
Bridge directly; the voltage amplitude is between 0V-3.3V while the
duty cycle is between 0% ~ 100%);
LCD_BKLTEN ---Backlight Enable, Active High.
USB Port
The board provides twelve USB ports, six of which are standard ports while the other
six ports are brought out on three 2x5Pin headers (Pitch: 2.54mm).
Pin Signal Name
1 +5V
2 USB_Data-
3 USB_Data+
J5(USB1/USB2)
J2(USB3/USB4)
J3(USB9/USB10)
4 GND
Pin Signal Name Pin Signal Name
1 +5V 2 +5V
3 USB1_Data- 4 USB2_Data-
5 USB1_Data+ 6 USB2_Data+
7 GND 8 GND
J6(USB5/USB6)
J7(USB7/USB8)
J8(USB11/USB12)
9 NA 10 GND