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E90-DTU(400SL42) LoRa digital radio remote communication, SX1268 wireless data transmission station, RS485/RS232 relay network

[Transmission power]:15W

[Communication distance]:30km

[Product size]:124*109.1*35.2mm

[Introduction]:E90-DTU(400SL42) is a real high-quality industrial-grade wireless data transmission radio. The radio adopts LORA spread spectrum technology. Its strong anti-interference ability makes wireless communication more stable and reliable in industrial sites. It has a variety of transmission methods, works in the (410.125~493.125MHz) frequency band (default 433.125MHz), and the radio station provides a transparent RS232/RS485 interface. LoRa direct-sequence spread spectrum technology will bring a 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 ability, greatly improving reliability and transmission distance. The radio has the function of data encryption; it supports the setting of packet length, and supports different real-time and data packets.

PIN
PINNameFunctionillustration
1GNDNegative pole of crimping power inputpower reference ground
2VCCPressure wire type power input positive polePower input (12V/4A)
3MODmode controlfloating, normal mode; grounded, configuration mode
4RS485 GRS485 interface GRS485 interface G is connected to the device GND interface (recommended connection)
5RS485 BRS485 interface BRS485 port B is connected to device B port
6RS485 ARS485 interface ARS485 port A is connected to device A port
7RS232RS232 interfaceStandard RS232 interface
8ANTSMA-K interfaceMale threaded inner hole, length 10mm, characteristic impedance 50Ω
9UPDATE-Hidden buttons, users do not need to care
10PWRPower IndicatorRed, lights up when power is on
11TXDSerial port data sending indicatorYellow, blinking when sending data
12RXDSerial port data receiving indicator lightYellow, blinking when receiving data
13ERRwarning lightThe antenna is not connected or the voltage and temperature are abnormal. After the abnormality of the antenna is not connected, it needs to be powered on again to work normally.