User manual

Installation Instructions

- 8 - 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.

nal

RS-232 RS-485

1 DCD# Data-

2 RXD Data+

3 TXD NC

4DTR# NC

5 GND GND

6DSR# NC

7RTS# NC

8CTS# NC

COM1

9RI# NC

Note: Under RS-485 mode, the data transmission direction is controlled

automatically.