Chengdu Ebyte Electronic Technology Co., Ltd.
E32-DTU(433L33)-V8 User Manual
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co., Ltd.
9
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 specification
5.1 Model specification
Model No.
Frequency
TX power
Distance
Features
Recommended application
Hz
W
km
E32-DTU(433L33
)-V8
433M
2
12
LoRa
，
anti-interference
Suitable for small data and long-distance
application environment
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 parameter
No.
Item
Value
Note
1
Size
82*62*25mm
See more in
3.2. Dimensions
2
Weight
150g
Difference is within 5g
3
Temperature
-40℃
～
+85℃
Meet industrial request
4
Antenna
impedance
50Ω
Standard 50 Ω characteristic impedance
5
Supply voltage
8
～
28V DC
It is recommended to use 12V or 24V
6
Communicatio
n interface
RS232/RS485
Standard DB9 hole / 3.81 terminal block
7
Baud rate
Factory default 9600
From 1200~115200
8
Address code
Factory default 0
65536 configurable address
5.3 Frequency and channel numbers
Model No.
Default Frequency
Frequency Range
Channel
Interval
Channel numbers
Hz
Hz
Hz
