Ebyte E90-DTU-V8, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co.,Ltd. E90-DTU (433L33)-V8_User Manual_EN
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co.,Ltd
8
3 485_B RS-485 interface, interface B
The RS-485 interface B is connected to the
device interface B
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 communication when connected to multiple devices , it is recommended 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
E90-DTU
(433L33)-V8
433 0.1 3
Strong penetration
，
anti - interference
To the environment with small data,
long distance, many obstacles
★
Note: Test condition: in clear and open air without shelters, 12V /2A power supply, 5dBi 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℃
～
+70℃ Meet industrial level
4 Antenna impedance 50 Ω Standard 50 Ω characteristic impedance
5 Supply voltage +8 ~ +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