E90-DTU(900L20)-V8 Industrial LoRa Wireless Data Radio
An industrial-grade wireless data transmission terminal with RS232/RS485 interfaces, leveraging LoRa spread spectrum technology for long-range, high-reliability communication in harsh environments.
Comprehensive Specifications
Core Parameters
- Communication Interface: RS232/RS485 (DB9 connector/3.81mm terminal)
- Operating Frequency: 862–930 MHz (Default: 868 MHz)
- Transmit Power: 20 dBm
- Communication Distance: Up to 5 km (Line-of-sight)
Physical & Electrical
- Dimensions: 82 × 62 × 25 mm
- Weight: 130g ±4.5g
- Voltage Range: 8–28V DC (Recommended: 12V/24V)
- Antenna Impedance: 50Ω (SMA-K interface)
Performance
- Baud Rate: 1200–115200 bps (Default: 9600 bps)
- Address Codes: 65,536 configurable addresses
- Operating Temperature: -40°C to +85°C
- Encryption: AES-128 data encryption
Key Product Features
LoRa Technology
- Direct-sequence spread spectrum for extended range
- High interference resistance with concentrated power density
Data Reliability
- FEC (Forward Error Correction) for error recovery in noisy environments
- Automatic data packet correction during burst interference
Security & Efficiency
- On-the-fly data encryption for secure transmissions
- Optional data compression to reduce transmission time
Configuration
- PC-configurable via dedicated software (E90-DTU Configuration Tool)
- DIP switch for operation mode selection (Default/Config)
Application Scenarios
Industrial Automation
- PLC/SCADA system communication
- Remote sensor networks (temperature, pressure, etc.)
Environmental Monitoring
- Weather stations and hydrological sensors
- Pollution detection systems in remote areas
Infrastructure
- Smart grid and energy metering networks
- Pipeline monitoring (oil, gas, water)
Challenging Environments
- Mining operations with obstructed line-of-sight
- Agricultural telemetry across large fields
| serial number | project | Specification | illustrate |
| 1 | Product size | 82*62*25mm | For details, see 3.2. Installation dimensions |
| 2 | Product weight | 131g | Weight tolerance 4.5 g |
| 3 | working temperature | -40℃～85℃ | Meet industrial grade use requirements |
| 4 | Antenna impedance | 50 Ω | Standard 50 Ω characteristic impedance |
| 5 | voltage range | +8~ +28V DC | It is recommended to use 12V or 24V |
| 6 | Communication interface | RS232/RS485 | Standard DB9 female/3.81 terminal block |
| 7 | baud rate | Factory default 9600 | Baud rate range 1200~115200 |
| 8 | Address code | Factory default 0 | A total of 65536 address codes can be set |
| 9 | Working frequency | 862 ~ 930MHZ | 868MHz |
| 10 | Communication distance | 5 km | Sunny weather, open environment without obstruction, 12V2A power supply, 5dBi gain suction cup antenna, the antenna is 2 meters above the ground, and the factory default parameters are used. |
| 11 | Air speed | 2.4 bps | Air speed level (bps) 2.4, 4.8, 9.6, 19.2 |
