Chengdu Ebyte Electronic Technology Co.,Ltd
E851-RTU(4440-ETH) User Manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd
9
SN
Ports
Function
Illustration
1
DC-IN transposon
DC socket 5.5*2.1mm
Power input
，
DC 8V~28V, 12V/24V is recommended,cannot
be powered with the crimp terminal at the same time
2
DC-IN +
Crimped power input positive
power input,DC 8V~28V
，
12V/24V is recommended,cannot
be powered with the DC socket at the same time
3
DC-IN -
Crimped power input negative
Power reference ground
4
RS485 B
RS485 interface B
RS485 interface B is connected with device B interface
5
RS485 A
RS485 interface A
RS485 interface A is connected with device A interface
6
RS485 G
Signal reference
can be unconnected
7
DIG
Switching input
Can be used in pairs with DI 4
8
DI 4
Switch input channel 4
Form dry contact with DIG
9
DIG
Switching input
Can be used in pairs with DI 3
10
DI 3
Switch Input Channel 3
Form dry contact with DIG
11
DIG
Switching input
Can be used in pairs with DI 2
12
DI 2
Switch Input Channel 2
Form dry contact with DIG
13
DIG
Switching input
Can be used in pairs with DI 1
14
DI 1
Switch Input Channel 1
Form dry contact with DIG
15
AIG
Differential analogue input
Can be used in pairs with AI 4
16
AI 4
Differential analog input channel 4
Differential analog input pin, forming input with AIG