Installation Instructions
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EC3-1816CLD2NA
4.
JCF1: CF Card Operating Voltage Selection (Pitch: 2.0mm)
Setup
Function
1-2 Short
+3.3V
JCF1
2-3 Short
+5V
（
Default
）
5.
JLCD1: Select LCD Operating Voltage (Pitch: 2.0mm)
Different LCD screens have different voltages; the board provides two voltage
options, +3.3V and +5V. Only when the selected LCD voltage is in accord with the
LCD screen operating voltage in use, can the LCD screen operate normally. Please set
as follows:
Setup
Function
1-2 Short
+3.3V(Default)
JLCD1
2-3 Short
+5V
2.5 COM Port
1.
The board provides one DB9 COM port. The COM1 supports RS-232/RS-485.
Signal
Pin
RS-232
RS-485
1
DCD#
Data-
2
RXD
Data+
3
TXD
NC
4
DTR#
NC
5
GND
GND
6
DSR#
NC
7
RTS#
NC
8
CTS#
NC
COM1
9
RI#
NC
Note: Under RS-485 mode, the data transmission direction is controlled
automatically.
