Chengdu Ebyte Electronic Technology Co.,Ltd.
ME31-XAAX0440_UserManul_EN
Copyright ©2012–2021,Chengdu Ebyte Electronic Technology Co.,Ltd.
11
3.4 Port description
Number
Port
Description
1
V-
Negative power input terminal, DC 8V~28V
2
V+
Positive power input terminal, DC 8V~28V
3
NO1
Relay 1 normally open pin, used in conjunction with the common terminal of relay 1
4
COM1 Relay 1 common terminal, used in conjunction with relay 1 normally open pin
5
NO2
Relay 2 normally open pin, used in conjunction with the common terminal of relay 2
6
COM2 Relay 2 common terminal, used in conjunction with relay 2 normally open pin
7
NO3
Relay 3 normally open pin, used in conjunction with the common terminal of relay 3
8
COM3 Relay 3 common terminal, used in conjunction with relay 3 normally open pin
9
NO4
Relay 4 normally open pin, used in conjunction with the common terminal of relay 4
10
COM4 Relay 4 common terminal, used in conjunction with relay 4 normally open pin
11
485-B
RS485 interface B is connected to the external device interface B
12
485-A
RS485 interface A is connected to the external device interface A
13
GND
Analog input ground
14
AI1
Analog input channel 1
15
AI2
Analog input channel 2
16
AI3
Analog input channel 3
17
AI4
Analog input channel 4
