Ebyte E32-DTU, User Manual

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Chengdu Ebyte Electronic Technology Co,;Ltd E32-DTU (433NW20) user manual
Copyright ©2012–2019 ，
Chengdu Ebyte Electronic Technology Co,;Ltd 9
4 485_A RS-485 interface, interface A The RS-485 interface A is connected to the device interface A
★
Note: The transceiver will be in poor co mmunicat ion when connected to multiple devices , it is reco mmended to be
connected to a single device, please try to use parallel 120Ω resistor between 485_A terminal and 485_B.
5. Technical indicators
5.1. Model specifications
Model
Frequency
Transmit
power
Distance
Specifications Application
Hz W km
E64-DTU
(433NW20)
433 0.1 1.5
One master,
multiple slave, star
networking
Low speed and high reliability wireless
upgrade
★
Note: Test condition: in c lear and open air without shelters, 12 V / 2A power supply, 5d Bi gain sucker antenna over 2
meters height from the ground, with the factory default parameters.
5.2. General specification parameters
NO. Model Specification Description
1 Size
（
H*W*D
）
82 * 62 * 25 mm See more at 3.2 Dimension
2 Weight 131g Tolerance: 4.5g
3 Temperature
-40℃
～
85℃
M eet industrial level
4 Antenna impedance
50 Ω Standard 50 Ω characteristic impedance
5 Supply voltage +10 ~ +28V DC It is recommended to use 12V or 24V
6 Communication interface RS232/RS485 Standard DB9 hole / 3.81 terminal block
7 Baud rate Default 9600 from 1200 to 115200 bps
8 Address Default 0 65536 configurable addresses