Ebyte E90-DTU-V8

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