The EBYTE E95-DTU and E96-DTU Series represent the pinnacle of ruggedized, industrial-grade wireless communications. Operating as point-to-point and point-to-multipoint data radio modems, these units utilize advanced LoRa spread-spectrum modulation technology to provide unparalleled anti-interference capabilities and exceptional communication range. Designed to bridge physical gaps seamlessly, these modems provide transparent data transmission for standard RS485 and RS232 industrial interfaces. Available in multiple frequency bands (400MHz/433MHz/900MHz/915MHz) and boasting power variants up to 30dBm (1W), this series caters to both standard low-power applications and demanding long-range telemetry. Whether integrating into a factory automation system or a remote environment setup, the EBYTE LoRa Wireless Data Radio Modem ensures ultra-reliable, long-distance network connectivity without the burden of recurring cellular fees.
Core Features
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Advanced LoRa Modulation: Leverages next-generation LoRa technology for superior signal penetration, high receiver sensitivity, and robust performance in high-interference environments.
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Flexible Serial Interfaces: Fully compatible with industrial RS485 or RS232 hardware, allowing direct connection to PLCs, RTUs, smart meters, and sensors.
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Dual Power Architecture: Offers versatile field installation options: the E95-DTU series runs on standard industrial DC power, while the E96-DTU series integrates a built-in AC power module.
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Enhanced Surge Protection (PLUS Edition): Select "PLUS" variations feature complete electrical isolation for communication ports, safeguarding your expensive terminal infrastructure from high-voltage surges and ground loops.
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Industrial Enclosure & Mount: Wrapped in a heavy-duty metal casing featuring guide-rail (DIN-rail) configuration for seamless integration into standard industrial distribution panels.
| Model | Series | Interface | Transmit Power (dBm) | Distance (km) | Electrical Isolation | Operating Voltage | Frequency Range (MHz) |
|---|---|---|---|---|---|---|---|
| E95-DTU(400SL22-485) | SL | RS485 | 22 | 5 | – | DC 8~28V | 410.125~493.125 |
| E95-DTU(400SL22-232) | RS232 | – | |||||
| E95-DTU(400SL22P-485) | RS485 | √ | |||||
| E95-DTU(400SL22P-232) | RS232 | √ | |||||
| E95-DTU(400SL30-485) | RS485 | 30 | 10 | – | |||
| E95-DTU(400SL30-232) | RS232 | – | |||||
| E95-DTU(400SL30P-485) | RS485 | √ | |||||
| E95-DTU(400SL30P-232) | RS232 | √ | |||||
| E95-DTU(900SL22-485) | RS485 | 22 | 5 | – | DC 8~28V | 850.125~930.125 | |
| E95-DTU(900SL30-485) | RS485 | 30 | 10 | – | |||
| E95-DTU(900SL30-232) | RS232 | – | |||||
| E96-DTU(400SL22-485) | RS485 | 22 | 5 | – | AC 85~265V | 410.125~493.125 | |
| E96-DTU(400SL22-232) | RS232 | – | |||||
| E96-DTU(400SL30-485) | RS485 | 30 | 10 | – | |||
| E96-DTU(400SL30-232) | RS232 | – | |||||
| E95-DTU(433L20-485)-V8 | L | RS485 | 20 | 3 | – | DC 8~28V | 410~441 |
| E95-DTU(433L30-485)-V8 | 30 | 8 | – | DC 8~28V | |||
| E96-DTU(433L20-485)-V8 | 20 | 3 | – | AC 85~265V | |||
| E96-DTU(433L30-485)-V8 | 30 | 8 | – | ||||
| E95-DTU(400F20-485) | F | RS485 | 20 | 1 | – | DC 8~28V | 410~510 |
| E95-DTU(400F30-485) | RS485 | 30 | 5 | – | |||
| E95-DTU(400F20-232) | RS232 | 20 | 1 | – | |||
| E95-DTU(433C30-485) | C | RS485 | 30 | 3 | – | DC 8~28V | 425~450.5 |
Customer Use Cases
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E95-DTU Standard DC Series: Distributed Solar Plant Array Telemetry
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Industry & Environment: Renewable Energy, Outdoor Desert/Field Solar Farm.
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Usage: Technicians install standard DC-powered E95-DTU modems into individual solar tracking boxes scattered across acres of land. Because the trackers operate purely off localized DC batteries, the wide-voltage DC input fits perfectly. The RS485 serial ports pull sensor data regarding panel alignment and power output. Using LoRa transparent transmission, all modems bounce data back to a central control station over multiple kilometers, bypassing the cost of laying extensive physical cable trenches.
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PLUS-E95-DTU Electrically Isolated Series: Heavy Industrial Factory Assembly Automation
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Industry & Environment: Heavy Manufacturing, In-plant Steel Mill / Chemical Processing Unit.
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Usage: In environments dominated by massive high-voltage machinery, electromagnetic interference and ground potential differences frequently fry standard communication chips. The automation team deploys the PLUS-E95-DTU. The unit's onboard electrical isolation protects the master PLC connection from voltage transients across the RS485 bus. The modem seamlessly channels conveyor controls and equipment metrics back to the SCADA system over the air, preventing hardware downtime.
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E96-DTU AC Powered Series: Municipal Smart Streetlighting and Environmental Grid
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Industry & Environment: Smart City Infrastructure, Urban Sidewalks and Roadways.
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Usage: For a city-wide smart lighting project, engineers choose the E96-DTU because it links directly into the municipal AC power grid (85V-265V AC) inside the light pole base. This eliminates the failure point of external power adapters. The modem interfaces with the lighting controller via RS485 to deliver scheduled dimming cycles and monitor ambient air quality sensors, broadcasting live operational health indicators back to city management servers.
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FAQ
Q1: What is the primary difference between the E95-DTU and E96-DTU models?
A: The core distinction lies in the power supply architecture. The E95-DTU series is engineered for DC power sources, supporting a wide industrial voltage range, which is perfect for battery or solar applications. The E96-DTU series features an integrated AC power module that hooks directly into standard mains utility grids, eliminating the need for external power bricks.
Q2: Why should I choose a "PLUS" variant instead of a standard model?
A: The "PLUS" models feature advanced electrical isolation on their communication interfaces. If your deployment environment contains heavy electrical motors, welding stations, or high-voltage lines, substantial ground loops and power surges can travel back through serial cabling. The PLUS version isolates these ports, protecting both the modem and your connected PLC hardware from permanent damage.
Q3: How do I configure parameters like frequency, airspeed, or baud rate?
A: Configuration is managed via standard AT commands or by using EBYTE's graphical PC configuration software. You simply connect the modem's RS485 or RS232 port to a computer using a USB converter, put the device into configuration mode via the onboard switch/pins, and tailor the operational parameters to match your local project needs.
Q4: Can an RS485 E95/E96-DTU communicate with an RS232 model over the air?
A: Yes. Since the E95 and E96 series utilize transparent data transmission, the wireless radio frequency layer operates independently of the wired interface. As long as both modems are configured with identical RF parameters (frequency, airspeed, address, and cryptographic keys), an RS485 device can communicate seamlessly with an RS232 device over the air.
Q5: What factors affect the transmission distance, and how do I maximize range?
A: The actual field range depends heavily on antenna height, line-of-sight clearing, environmental obstacles (buildings/trees), and ambient RF noise. To maximize your distance, always install antennas as high as possible, ensure you use the correct matched-frequency antenna (e.g., a dedicated 433MHz or 915MHz stick), and maintain line of sight whenever feasible.