Edp Backlight Power Select (Optional); Com 1/Com 2 Rs232/Power Select - DFI SU173 User Manual

eDP Backlight Power Select (optional)

3 2 1
JP17
1-2 On: +3.3V
(default)
3 2 1
2-3 On: +5V
JP17 is used to select the power level of backlight control: +3.3V (default) or +5V.
Important:
Before powering-on the system, make sure that the power settings of JP17 match the
power specification of backlight control. Selecting the incorrect voltage will seriously
damage the backlight.
Chapter 2 Hardware Installation
Chapter 2

COM 1/COM 2 RS232/Power Select

2 4 6
1 3 5
1-3 (RI), 2-4 (DCD) On:
RS232 (default)
JP4 (for COM1) and JP5 (for COM 2) are designed to configure Serial COM ports to pure
RS232 or RS232 with power.
2
1 9
RS232
15
COM 2
COM 1/COM 2:
RS232/422/485
2
1
COM 1
JP4 JP5
2 4 6
1 3 5
3-5 (+5V), 4-6 (+12V) On:
RS232 with power
COM 1/COM 2
2 2
1 9 1
RS422
RS485
Full Duplex
www.dfi.com
9
9