433MHz Lora Wireless RS485 TTL to RF Digital Transmission Radio Modbus Slave Polling E90-DTU(400SL30L) Low Power 30dbm 10KM Watchdog Wake Up

Description

• E90-DTU (400SL30L) is a wireless data transmission radio using military-grade LoRa modulation technology. It has a variety of transmission methods and works in the (410.125~493.125MHz )frequency band (default 433.125MHz).
• The radio provides RS485 and TTL two kinds of serial communication Port, support 8~28V DC power supply or 4.2V lithium battery power input, support reverse constant current charging; and TTL two kinds of serial communication Port, support 8~28V DC power supply or 4.2V lithium battery power input, support reverse constant current charging;
• The introduction of the Modbus RTU protocol can configure the working mode of the digital radio through the configuration register, which is convenient for customers to access their own configuration system (HMI or SCADA software, etc.) through the Modbus protocol for radio management, and provides the convenience of a host computer that does not need to understand the Modbus protocol. Configuration by users who do not understand the protocol;
• Ultra-low power consumption desjgn, the lowest standby current consumption is only 38uA, supports battery power supply (3.7-4.2v) and reverse charging, and the radio integrates switch value acquisition (dry contact) and switch value output (transistor) for remote acquisition control, and the device can provide power for low-power sensors; Multiple automatic polling commands can be configured to support automatic Modbus CRC check;
• Support lithium battery power supply and reverse charging, and support battery voltage detection and low battery feedback; The transmission power can reach up to 1W, and supports multi-level adjustment, and all technical indicators meet European industrial standards;

Using the latest LoRa technology, the distance is farther and the performance is more powerful than the
traditional LoRa digital radio;
Using military-grade LoRa modulation technology, the transmission is more secure, and the packet length can
be configured;
Oversized single packet, single packet supports up to 240 bytes, and adapts to Modbus protocol;
Based on standard Modbus RTU design, it is convenient to access different configuration systems;
Support a variety of serial communication ports (TTL and RS485) to facilitate access to sensors of different
protocols;

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