Chengdu Ebyte Electronic Technology Co., Ltd.
Copyright2012–20231
ChengduEbyteElectronicTechnologyCo,;Ltd
10
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
E90-DTU(230SL3
7)
230.125M
5
20
LoRa
，
anti-interference
Suitable for transmission of fast speed
in complex environment with data
interference over a long distance
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
124 * 105 * 25 mm
See more in 3.2. Dimensions
2
Weight
239.7g
± 9g
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
Communication
interface
RS232/RS485
Standard DB9 hole / 3.81 terminal block
7
Baud rate
Default 9600
From 1200~115200
8
Address
Default 0
65536 configurable address
5.3 Frequency and channel numbers
Model No.
Default Frequency
Frequency Range
Channel
Interval
Channel numbers
Hz
Hz
Hz
E90-DTU(230SL37)
230.125M
220.125
～
236.125M
250K
65
，
half duplex
