Ebyte E90-DTU(900SL42) lora wireless radio modem sx1262 868mhz data transceiver lora device wireless transmitter and receiver
E90-DTU(900SL42)LoRa data transmission radio LoRa module remote communication SX1262 radio frequency chip 485/232 wireless data transmission radio relay network [Transmitting power]：15W [Communication distance]：30km [Product weight]： 425±5g [Introduction]：E90-DTU(900SL42) is a truly high-quality industrial-grade wireless data transmission radio. The radio uses LORA spread spectrum technology. Its strong anti-interference ability makes wireless communications more stable and reliable in industrial sites. It has a variety of transmission methods and works in the (850.125~930.125MHz) frequency band (default 868MHz). The radio station provides a transparent RS232/RS485 interface. LoRa direct sequence spread spectrum technology will bring longer communication distance and has the advantage of strong anti-interference ability. The module has a software FEC forward error correction algorithm, which has high coding efficiency and strong error correction capability, which greatly improves reliability and transmission distance. The radio has data encryption function; supports sub-packet length setting, supports different real-time and data packets. Model specifications Operating frequency (Hz) Transmitting power (W) Reference distance (km) Specifications and features Recommended application scenarios E90-DTU(900SL42) 868.125M 15 30 LoRa spread spectrum anti-interference Suitable for environments with long distances and susceptible to interference Note: Sunny weather, open environment without obstruction, 12V/4A power supply, 5dBi suction cup antenna, the antenna is 2 meters above the ground, and the factory default parameters are used. No. Item Specification Description 1 Product Size 124*109.1*35.2mm See installation dimensions for details 2 product weight 425g Weight tolerance 5g 3 Operating temperature -40℃～+85℃ Meet industrial grade use requirements 4 Antenna impedance 50Ω Standard 50Ω characteristic impedance 5 voltage range 12±1V DC It is recommended to support instantaneous current 4A 6 Communication Interface RS232/RS485 Standard DB9 female/5.08 terminal block 7 baud rate Factory default 9600 Baud rate range 1200～115200 8 address code Factory default 0 A total of 65536 address codes can be set Frequency range and number of channels Model specifications Default frequency (Hz) Frequency band range (Hz) Channel spacing (Hz) Number of channels E90-DTU(900SL42) 868.125M 850.125～930.125M 1M 81, half duplex Note: When using multiple groups of digital radio stations to communicate one-to-one at the same time in the same area, it is recommended that each group of digital radio stations set a channel spacing of more than 2MHz. Transmit power level Model specifications 10/15 W E90-DTU(900SL42) Software adjustable, default 15W Air speed class Model specifications Default air rate (bps) Number of levels Air rate level (kbps) E90-DTU(900SL42) 2.4k 8 0.3、1.2、2.4、4.8、9.6、19.2、38.4、62.5 Note: The higher the air speed setting, the faster the transmission rate and the shorter the transmission distance; therefore, when the speed meets the usage requirements, it is recommended that the lower the air speed, the better. Current parameters Model specifications Power supply voltage (V) Emission current (A) Waiting current (mA) E90-DTU(900SL42) 12±1 2.5~3.5 30 Transmitting and receiving length and packetization method Model specifications Cache size Packaging method E90-DTU(900SL42) 1000 bytes Subpackage 32/64/128/240 bytes can be set by command to send Note: 1. If the data received by the radio in a single time is greater than the single packet capacity, the excess data will be automatically allocated to the second transmission until the transmission is completed; 2. The data received by the radio station at a time cannot be larger than the buffer capacity.