The E96-DTU(400SL30-485) is an industrial-grade wireless data transmission unit (DTU) based on the Semtech SX1262 LoRa chip. Operating at 433/470MHz with military-grade LoRa spread-spectrum modulation, it provides a transparent RS485 serial interface for seamless integration with PLCs, meters, sensors, and SCADA systems. The DIN-rail plastic enclosure, wide voltage input (AC 85–265V or DC 8–28V), and -40℃ to +85℃ operating range make it ideal for demanding industrial environments.
[Model]：E96-DTU(400SL30-485)
[Chip]：Semtech SX1262
[Frequency]：410–441 MHz (default 433 MHz) · 32 channels · 1 MHz spacing
[TX Power]：20 dBm (configurable)
[Range]：3 km (open field, LoRa spread spectrum)
[Interface]：RS485 (3.81mm terminal block)
[Power Supply]：AC 85–265V (110V/220V) | DC 8–28V
[Size]：92 × 67 × 30 mm · DIN-rail mount · 95 ± 5g
| Model | Frequency | TX Power | Range | Modulation | Recommended Applications |
| MHz | dBm | km | |||
| E96-DTU(400SL30-485) | 410–441 (default 433) | 20 | 3 | LoRa spread spectrum, anti-interference | Small data volume, long-distance industrial telemetry |
| No. | Parameter | Specification | Remark |
| 1 | Dimensions | 92 × 67 × 30 mm | See installation drawing |
| 2 | Weight | 95 g | ±5g tolerance |
| 3 | Operating Temp | -40℃ to +85℃ | Industrial grade |
| 4 | Antenna Impedance | 50Ω | Standard SMA female |
| 5 | Power Supply | AC 85–265V / DC 8–28V | 110V or 220V AC recommended |
| 6 | Interface | RS485 | 3.81mm terminal block |
| 7 | Baud Rate | Default 9600 bps | Configurable: 1200–115200 bps |
| 8 | Address Code | Default 0 | 65536 addresses available |
| Model | Default Freq (MHz) | Freq Range (MHz) | Channel Spacing | Channels / Duplex |
| MHz | MHz | MHz | ||
| E96-DTU(400SL30-485) | 433 | 410–441 | 1 | 32 channels · Half-duplex |
| Model | TX Current (mA) | Standby Current (mA) | ||
| @ 12V DC | @ 24V DC | @ 12V DC | @ 24V DC | |
| E96-DTU(400SL30-485) | 230 mA | 135 mA | 20 mA | 12 mA |
Practical Application Scenarios
Scenario 1: Automated Smart Metering in Factory Power Distribution
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Regional Industry Pain Points: Factory sub-metering systems are typically retrofitted inside existing power distribution cabinets. Running fresh Ethernet or RS485 physical communication lines across heavy machinery areas is extremely expensive, disruptive, and exposes cables to high-voltage EMI transients that corrupt Modbus data.
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Ebyte Technical Solution: By installing the E96-DTU(400SL30-485) directly alongside standard energy meters on the cabinet's DIN-rail, engineers can hook the meter's RS485 terminal to the DTU. Utilizing the 85-265V AC mains terminal inside the cabinet directly for power, the DTU uses military-grade SX1262 LoRa modulation to bypass industrial electrical noise, securely beaming electricity telemetry back to the SCADA control panel over a 3km range without cable infrastructure.
Scenario 2: Remote Agricultural Pump Control and Water Gate Telemetry
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Regional Industry Pain Points: Farmland irrigation and canal gates are scattered across expansive open regions. Standard Wi-Fi or Bluetooth cannot handle the kilometers of distance required, while cellular networks suffer from high subscription fees and dead zones in remote rural terrain.
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Ebyte Technical Solution: Field PLCs and actuator devices can be linked to the E96-DTU(400SL30-485). Operating at 433MHz Sub-GHz frequencies, the signal possesses superior diffraction properties around vegetation, buildings, and terrain. Operating via DC 12V solar panel setups or direct AC power, the DTU transparently bridges PLC Modbus RTU commands, allowing central operations to actuate water gates and read soil sensors reliably.
Scenario 3: Municipal HVAC and Environmental Control in High-Rise Buildings
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Regional Industry Pain Points: Building management systems (BMS) require constant telemetry from HVAC sensors, dampers, and water chillers across floors. Thick reinforced concrete walls and multi-floor barriers attenuate traditional 2.4GHz signals rapidly, creating isolated blind zones for ventilation controls.
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Ebyte Technical Solution: Because the E96-DTU(400SL30-485) operates on 433MHz LoRa, the lower frequency and high receiver sensitivity allow it to penetrate thick masonry, building infrastructure, and elevator shafts. The DIN-rail structure mounts seamlessly into building service cabinets, routing terminal sensor data directly to central air handling units for optimized, energy-efficient HVAC adjustments.
FAQ Section
What makes the SX1262-based E96-DTU superior to older SX1278 or FSK-based modems?
A: The Semtech SX1262 RF architecture used in the E96-DTU(400SL30-485) offers a dramatic leap over legacy systems. It provides higher receiver sensitivity, lower power consumption under active tx/rx cycles, and significantly stronger anti-interference capabilities under industrial noise. This allows for a much more reliable link budget and consistent throughput over the 3km communication span.
Does the DTU require external RS485 transceiver configuration or manual programming?
A: No programming is required. The E96-DTU features seamless, fully transparent data transmission. It acts as a wireless cable replacement; whatever Modbus or raw serial data is entered into the RS485 port of one DTU is instantly outputted on the receiving DTU’s RS485 terminal block.
Can this unit be powered by standard industrial AC mains or solar DC arrays?
A: Yes, the E96-DTU is designed with high power supply versatility. It features dual separate input interfaces supporting both high-voltage AC (85-265V, perfect for direct electrical cabinets and municipal grids) and low-voltage DC (8-28V, ideal for 12V solar batteries or 24V PLC power rails).
How does the 433MHz frequency band help with physical obstacle penetration?
A: Sub-GHz wireless frequencies like 433MHz feature a longer physical wavelength compared to 2.4GHz or 5.8GHz. This longer wavelength allows the radio waves to easily diffract around physical obstacles, penetrate concrete structures, and travel through thick foliage, providing much higher structural penetration in dense urban or industrial factory layouts.