1 Product Introduction
1.1
Product Description
E90-DTU(400SL47) is a real high-quality industrial-grade wireless digital transmission radio (the radio won the
national design patent ZL202030009845.3), the radio adopts LORA spread spectrum technology, and its strong
anti-interference ability makes the wireless communication more stable and reliable in the industrial site.
It has a variety of transmission modes, working in the (410.125 ~ 460.125M) frequency band (default 433.125MHz),
the radio provides transparent RS232/RS485 interfaces.LoRa direct-sequence spread-spectrum technology will bring a
longer communication distance, and has the advantage of strong anti-jamming ability. The module has software FEC
forward error correction algorithm, which has high coding efficiency and strong error correction capability, and can
actively correct the interfered data packets in case of sudden interference, greatly improving the reliability and
transmission distance. In the absence of FEC, such packets can only be discarded. The radio has data encryption function,
the data transmitted by the radio in the air, with randomness, through the strict encryption and decryption algorithms,
which makes the data interception lose its significance; it supports the sub-packet length setting, and supports different
real-time and data packets.
As a communication medium, wireless digital transmission radio, like fiber optic, microwave, open wire, has a
certain scope of application: it provides real-time, reliable data transmission of monitoring signals in the special network
under some special conditions, with low cost, easy installation and maintenance, strong ability to bypass the shooting,
flexible network structure, and far-reaching coverage.
It is characterized by low cost, easy installation and
maintenance, strong bypassing ability, flexible network structure and long coverage, suitable for multi-point and
decentralized location, complex geographic environment and other occasions, and can be connected with PLC, RTU, rain
gauge, liquid level meter and other data terminals.
1.2
Functional characteristics
Ideally the communication distance can be up to 70KM+;
AT commands are supported;
Support IAP online upgrade;
Transmit power up to 50W;
Ambient field strength dynamic indication, packet RSSI dynamic indication;
Hardware and software dual watchdog;
Dust and moisture resistant;
The product is easy to use and configured by the upper computer;
Adopting the latest LoRa technology, it has a longer distance and more powerful performance than traditional LoRa
digital transmission radios;
Adopting military-grade LoRa modulation technology, features data encryption and programmable packet length;
Extra large single packet, single packet support up to 240 bytes;
Simple and efficient power supply design with crimped wires to support 12V\20A power supply;
Support LBT function, the radio automatically waits for transmission according to the current environmental noise
intensity. Greatly improve the communication success rate of the module in harsh environments;
Supports communication key function to effectively prevent data from being intercepted;
It can realize multi-level relay networking, effectively extend the communication distance and realize
Содержание E90-DTU(400SL47)
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