Chengdu Ebyte Electronic Technology Co.,Ltd.
E831-RTU(8080T-485) User
Manual
11
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
11
DO1
Digital output channel 1
NPN transistor open
collector output channel 1
12
GND
Signal reference ground
Signal reference ground
13
RS485-G
RS485 signal reference ground
RS485 signal reference
ground, optional
14
RS485-B
RS485 interface B
RS485 interface B is
connected to device B interface
15
RS485-A
RS485 interface A
RS485 interface A is
connected to the device A
interface
16
DI8
Digital input channel 8
Form dry contact with DIG
17
DI7
Digital input channel 7
Form dry contact with DIG
18
DI6
Digital input channel 6
Form dry contact with DIG
19
DI5
Digital input channel 5
Form dry contact with DIG
20
DI4
Digital input channel 4
Form dry contact with DIG
21
DI3
Digital input channel 3
Form dry contact with DIG
22
DI2
Digital input channel 2
Form dry contact with DIG
23
DI1
Digital input channel 1
Form dry contact with DIG
24
YOU
Digital input signal reference ground
Digital input signal
reference ground, used in
conjunction with DI
use
LED
lights
DATA
Serial data
indication
Two-color light, green indicates data
reception, blue indicates data transmission
I/O
I/O status
indicator
Two-color light, any channel of input has
signal green indicator light, any channel of output
has signal blue indicator
The indicator light is on, when there is both
output and input, it is on at the same time, and the
indicator light is cyan.
PWR
Power
indicator
Red LED, always on
