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hengdu Ebyte Electronic Technology Co.,Ltd E95-DTU(400SL22-485) User Manual
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opyright ©2012–2020, Chengdu Ebyte Electronic Technology Co.,Ltd
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2.2 Communication interface description
E95-DTU can use 3.81 terminal block to connect with equipment through RS-485.
No.
Standard
definition
Function
Description
1
G
signal ground
Anti-interference, grounding
2
A
RS-485 bus A interface
RS-485 A interface is connected to device A interface
3
B
RS-485 bus B interface
RS-485 B interface is connected to device B interface
★
Note: The communication is not smooth when connecting the DTU to multiple devices, but there is no such phenomenon in a
single device. Please try to connect a 120Ω resistor in parallel between the 485_A terminal and the 485_B terminal.
Summary of Contents for 400SL22-485
Page 1: ...E95 DTU 400SL22 485 ...
