Industrial LoRaWAN DTU D8L Series Wireless Data Terminal

1. Description

JW-D8L LoRaWAN DTU is an industrial wireless data terminal that integrates RS232 and RS485 serial ports for seamless IoT connectivity. It enables reliable long-range data transmission, remote device control, and transparent Modbus-RTU data forwarding over LoRaWAN networks, making it ideal for rapid, low-cost deployment in industrial and smart agriculture applications.

2. Product Overview

JW-D8L LoRaWAN DTU is a robust industrial-grade data terminal designed for seamless integration into IoT networks. It converts standard RS232 and RS485 serial devices into wireless LoRaWAN-enabled endpoints, enabling long-range data transmission and remote device management. The DTU supports high-power transmission, multiple LoRaWAN classes (A/C), and both OTAA and ABP network join modes, making it highly versatile for applications in smart agriculture, industrial monitoring, water treatment, and urban infrastructure. With a compact, mountable design, LED indicators for system status, and support for Modbus-RTU and custom protocols, the D8L/P series ensures reliable, scalable, and low-maintenance deployment for real-time monitoring and control.

Interface Overview

Interface	Description
Power 1	DC 9–28V input
Power 2	DC 5.5×2.1 mm, DC 9–28V input
USB-TTL	Debugging or data printing
LoRa Antenna	SMA female
RS232	DB9, 3-wire TXD/RXD/GND
RS485	2P terminal A+/B-
Reset Button	Short press: reset, Double press: config mode, Long press 5s: factory reset

3. Interface Description

LED	Status
POWER	On: normal, Off: power issue
RUN	Flashing: system running, On/Off: system error
LoRa	On: sending data, Off: idle
RS232	Flashing: data received
RS485	Flashing: data received

4. LoRa Parameters

Output Power: D8L -1~22dBm, D8P -1~27dBm
Bandwidth: 125 kHz
Spreading Factor: SF7–SF12 (adjustable, 5.5/3.1/1.8/1.0/0.6/0.3 kbps)
Receiver Sensitivity: -135 dBm @ SF12
Frequency Ranges: EU433, CN470, CN779, EU868, AS923, AU915, KR920
RS232 & RS485: Isolated with 15KV ESD protection, configurable baud rate 2400–115200 bps

5. Electrical & Physical Specs

Power Supply: DC 12V 1A
Current: Max 0.5A @ D8L, Max 1A @ D8P
Average Power Consumption: ≤ 0.5 W
Dimensions: 96.5 × 89.3 × 24.3 mm
Weight: ~0.7 kg
Operating Temp: -40°C to 85°C
Storage Temp: -50°C to 95°C
Humidity: 0–95% non-condensing

6. Accessories

1 × DTU Unit
1 × DC12V 1A Power Adapter
1 × LoRa Antenna (Blade or Suction Cup)
5 × Expansion Screws for wall mounting

7. Application Scenarios：

Smart Agriculture: Greenhouse and open-field monitoring, irrigation control, soil moisture and nutrient data collection
Industrial Automation: Factory and plant monitoring, remote sensor integration, RS485/RS232 device networking
Smart Water & Environmental Monitoring: Water level, water quality, and environmental sensor data collection
Urban Infrastructure: Flood monitoring, urban IoT sensing, telemetry integration for municipal utilities
IoT Network Deployment: Low-cost, scalable wireless networks for data acquisition and device control in remote or hard-to-wire locations