Chengdu Ebyte Electronic Technology Co.,Ltd.
E96-DTU(400SL30-485) User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
20
intercommunication, AC power supply
E96-DTU(400SL30-232)
RS232
410.125
～
493.125
30
10
A new generation of LoRa, rail type,
RS232, E90-DTU SL series
intercommunication, AC power supply
12 Precautions for Use
1. Do not operate this radio in the vicinity of some flammable places (such as coal mines) or explosive dangerous objects
(such as detonators for detonation).
2. A suitable DC stabilized power supply should be selected, which requires strong anti-high frequency interference, low
ripple, and sufficient load capacity; preferably, it should also have over-current, over-voltage protection and lightning
protection functions to ensure data transmission The radio is working normally.
3. Do not use it in a working environment that exceeds the environmental characteristics of the digital radio, such as high
temperature, humidity, low temperature, strong electromagnetic field or dusty environment.
4. Don't let the digital radio station continuously be in full load transmitting state, otherwise the transmitter may be burnt
out.
5. The ground wire of the digital transmission radio station should be well connected with the ground wire of the external
equipment (such as PC, PLC, etc.) and the ground wire of the power supply, otherwise the communication interface may
be burnt out; do not plug or unplug the serial port with power on.
6. When testing the digital radio station, you must connect a matching antenna or a 50Ω dummy load, otherwise the
transmitter will be easily damaged; if the antenna is connected, the distance between the human body and the antenna
should be more than 2 meters to avoid injury. Do not touch the antenna while transmitting.
7. Wireless data transmission stations often have different communication distances in different environments. The
communication distance is often affected by temperature, humidity, obstacle density, obstacle volume, and
electromagnetic environment; in order to ensure stable communication, it is recommended to reserve 50 % Or more of
the communication distance margin.
8. If the measured communication distance is not ideal, it is recommended to analyze and improve the communication
distance from the antenna quality and antenna installation method. You can also contact [email protected] for help.
9. When selecting the power supply, in addition to retaining 50% of the current margin as recommended, it should also be
noted that its ripple should not exceed 100mV.
13 Important Statement
1. Ebyte reserves the right of final interpretation and modification of all contents in this manual.
2. Due to the continuous improvement of the hardware and software of the product, this manual may be changed without
prior notice. The latest version of the manual shall prevail.
Summary of Contents for 400SL30-485
Page 1: ...E96 DTU 400SL30 485 ...
