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EAC Mini EACFA20 IoT Gateway User Manual
B-4: 2-Port RS232/422/485 with isolation EACWLST-235 &
EACWLST-231
To install EACWLST-235 module:
1. Follow the procedure described in
Chapter 2, “Expansion Module Installation”
EACWLST-235 module.
2. Connect one end of the USB cable to the EACWLST-235 board and another end to the
EAC Mini motherboard.
3. Adjust jumper settings if needed.
4. Finish module installation.
USB Cable Connection Diagram:
Notice:
Full loading only for three USB ports.
Jumper Settings:
Refer to J8/J9 settings below.
RS232
RS422
RS485
JP8
1-2
3-4
5-6
JP9
1-2
4-5
7-8
10-11
2-3
5-6
8-9
11-12
2-3
5-6
8-9
11-12
For example:
At the picture below you can see RS-232, RS-422, RS-485 (J8/J9) jumper setting.
To select RS-232 set Jumper 8 pin 1-2 to the SHORT position, and Jumper 9 pin1-2, 4-5, 7-8, 10-
11 to the SHORT position.
Summary of Contents for EAC Mini EACFA20
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