Ebyte 2G4H27, Руководство пользователя

Страница: 9 / 17

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