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EAC Mini EACFA20 IoT Gateway User Manual
Appendix B: Expansion Module
B-1: 16-Channel Digital I/O with isolation EACWLST-232
To install EACWLST-232 module:
1. Follow the procedure described in
Chapter 2, “Expansion Module Installation”
EACWLST-232 module.
2. Connect two USB cables. One end to EACWLST-232 board and another end to EAC
Mini motherboard.
3. Finish module installation.
USB Cable Connection Diagram
Pin assignment and signal names of DIDO connector
Pin No
Signal Name
Pin No.
Signal Name
1
EXDIN0
14
EXDIN1
2
EXDIN2
15
EXDIN3
3
EXDIN4
16
EXDIN5
4
EXDIN6
17
EXDIN7
5
ISO_ECOM
18
ISO_PCOM
6
ISO_GND
19
EXDOUT0
7
EXDOUT1
20
EXDOUT2
8
EXDOUT3
21
EXDOUT5
9
EXDOUT5
22
EXDOUT6
10
EXDOUT7
23
X
11
X
24
X
12
DI_INOUT3
25
X
13
X
Remark: U2DIDO & U2COM
U2xx_ttyUSB
3G/ 4G Card
U2DIDO
U2COM
Sierra module
ttyUSB3
ttyUSB3/ ttUSB4
Quecter module
ttyUSB4
ttyUSB4/ ttUSB5