MN2000000198
Page 7
CAUTION
1.
Be sure to confirm your serial device power voltage sourcing and
pin number to prevent any further problem.
2.
Before plugging this board into your system, please carefully
check the power output jumper setting and hardware installation
steps to prevent any damages.
3.
Wrong operating damages connected serial device.
4.
DO NOT cross the jumper settings over different pin define.
You can read below silkscreen print on the PCB. Each COM port has
four jumper settings for the 1/4/8/9 pin for DB9 male connector. You
can select standard RS-232 signal (system default), +5VDC, or
+12VDC power output on the assigned pin.
COM 1 Port – 1
st
Pin
Normal(DCD)
5V
12V
!
