1. Product Introduction

1.1 Product Description

RDO421/RDO821 is a highly flexible configuration that supports Battery-powered low power consumption DTU, embedded with high-performance MCU and Semtech RF chip SX1262/SX1268, uses RS-485/m-bus interface to communicate with external devices, and uploads business data to the application platform through LoRa/LoRaWAN protocol.

RDO421A/RDO821A uses the RS-485 interface to communicate with the device, and RDO421C/RDO821C uses m-bus to communicate with the interface device.

1.2 Application fields

• Industrial site

• Water meter reading

• Industrial meter

• Hydrometeorological monitoring
• Environmental protection, municipal administration and other related scene monitoring

1.3 Main features

• RS-485 supports multiple baud rates and verification methods, and provides interference data filtering and timeout recheck functions.

• Supports m-bus interfaces.

• The Uplink mode supports LoRa and LoRaWAN.

• Support LoRaWAN standards in multiple countries and regions

• Supports connections to devices of different protocol types.

• Supports remote and inbound FUOTA upgrades.
• Supports precise timing

1.4 product appearance

2. Product parameters

2.1 Product Size

2.2 Interface Definition

2.3 Electrical parameters

2.4 RF parameters

3. Ordering information

Please read carefully 《Purchase Note》