Chengdu Ebyte Electronic Technology Co.,Ltd.
E34-DTU (2G4H27) user manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co,;Ltd
8
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
Frequenc
y
Transmit
power
Distance
Specifications
Application
Hz
W
km
E34-DTU
（
2G4H27
）
2400
0.5
5
Automatic frequency
hopping, automatic packet
loss retransmission
Suitable for open environment
with few 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 * 25mm
See more at 3.2 Dimension
2
Weight
141g
Tolerance: 4.5g
3
Temperature
-40℃
～
85℃
Meet 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
5.3.
Frequency range and channels
Model
Default frequency
Frequency range
Channel
spacing
Channels
Summary of Contents for 2G4H27
Page 1: ...E34 DTU 2G4H27 ...
