Chengdu Ebyte Electronic Technology Co., Ltd. E870-E1_User Manual_EN
Copyright ©2012
–
2022,
Chengdu Ebyte Electronic Technology Co., Ltd.
15
3.3 Port Description
Positive pole of power input terminal,DC 8V~28V
Negative pole of power input terminal,DC 8V~28V
RS485 interface B is connected to the external device
B interface
The RS485 interface A is connected to the external
device A interface
Relay 1 normally open pin, used with the common
terminal of relay 1
Common terminal of relay 1, used in conjunction with
the normally open pin of relay 1
Relay 2 normally open pin, used in conjunction with
the common terminal of relay 2
Common terminal of relay 2, used in conjunction with
the normally open pin of relay 2