| Mode |
Working Frequency |
Transmit Power |
Distance | Specifications | Recommended Application Scenarios |
| Hz | dbm | km | |||
| E95-DTU(900SL22-485) | 850.125~930.125M | 22 | 5 |
New generation LoRa spread spectrum, DC power supply |
long-distance, interference-prone environments |
| No. | Term | Specification | Description |
| 1 | Size | 92*66*30 mm | See installation dimensions for details |
| 2 | Weight | 95g | Weight tolerance 5g |
| 3 | Working Temperature | -40℃～+85℃ | Industrial grade |
| 4 |
Antenna impedance |
50Ω |
Standard 50Ω characteristic impedance |
| 5 | Voltage Range | 8～28V DC | Recommend to use 12V or 24V |
| 6 | Interface | RS485 | 3.81 terminal block |
| 7 | Baud Rate | Default 9600 | Baud rate range 1200～115200 |
| 8 | Address Code | Default 0 | A total of 65536 address codes can be set |
| Model |
Defaul tFrequency |
Frequenc yRange |
Channel Spacing |
Number of Channels |
| Hz | Hz | Hz | ||
| E95-DTU(900SL22-485) | 850.125M | 850.125～930.125M |
1M | 81，Half Duplex |
| Model | Emission current mA | Receive current mA | Sleep current mA |
| 12V | 12V | 12V | |
| E95-DTU(900SL22-485) | 32.65 | 14.58 | 7.29 |
Practical Application Scenarios
1. Municipal Water Supply Pipeline SCADA Monitoring Systems
Water distribution networks span large metropolitan areas where laying fiber-optic cables across pumping stations is cost-prohibitive. The E95-DTU(900SL22-485) is mounted on standard 35mm DIN rails inside field control cabinets, bridging remote flow meters and pressure sensors via its transparent RS485 interface. Operating in the 850-930MHz band with a 5km range, it transmits real-time telemetry back to central SCADA servers, eliminating physical wiring bottlenecks.
2. Smart Agricultural Greenhouse Irrigation Control Networks
Large-scale agricultural automation requires rugged, long-range wireless links to connect soil moisture sensors and solenoid valve controllers scattered across expansive farmlands. Powered by an 8V-28V industrial DC power supply bus, this DTU handles harsh outdoor environmental conditions inside protective enclosures. Its military-grade LoRa spread-spectrum modulation ensures robust packet delivery through heavy crop canopies and across flat fields without signal dropout.
3. Industrial Photovoltaic (PV) Plant Inverter Telemetry
Commercial solar farms feature rows of inverters spread across vast open areas that require centralized performance monitoring. System integrators deploy the E95-DTU to link string inverters equipped with RS485 Modbus communication directly to central plant monitoring hubs. The 22dBm output power and multi-channel capability prevent co-channel interference between dense rows of solar arrays, ensuring high-speed data frame transparency.
FAQ Section
1. Can the RS485 interface connect directly to industrial PLCs and RTUs without protocol conversion?
Yes, the E95-DTU provides a transparent RS485 data transmission interface. It acts as an invisible wireless cable replacement, meaning raw data packets or standard Modbus protocols transmitted into the serial port by PLCs, frequency converters, or RTUs are seamlessly modulated and transmitted over the air without requiring custom application protocol layers.
2. Why is the 8V to 28V wide voltage input crucial for industrial cabinet deployments?
Industrial control panels often run on standard 12V or 24V DC auxiliary power rails that experience minor voltage fluctuations during heavy inductive loads (such as relay switching or motor startup). The wide 8V to 28V input range ensures stable internal regulation and prevents unexpected device resets, making it fully compatible with standard industrial power distribution standards.
3. How does the rail-type installation structure simplify deployment in control boxes?
The DTU is engineered with an integrated 35mm standard DIN rail mounting clip on its durable plastic housing. This allows technicians to securely snap the transceiver directly onto standard electrical cabinet DIN rails alongside breakers, power supplies, and terminal blocks, resulting in clean, organized wiring and secure physical deployment.
