The Dragino RS485-LN is an RS485/Modbus-to-LoRaWAN converter that brings wired industrial sensors onto a wireless LoRaWAN network. It polls RS485 devices with user-defined commands, processes the responses, and uploads the results — and in Class C mode it forwards downlink commands back to the RS485 bus for remote control.

Key specifications

• RS485 interface with Modbus RTU support; flexible rules for multiple RS485 devices
• LoRaWAN Class A and Class C (default Class C for downlink control)
• STM32L072 MCU with SX1276 LoRa transceiver; up to 168 dB link budget
• 7–24 V DC power input via 6-pin terminal; DIN-rail holders included
• Point-to-point mode between two RS485-LN units without a LoRaWAN server
• AT commands and LoRaWAN downlink for remote configuration; 110 × 90 × 25 mm

This US915 variant is ideal for retrofitting meters, PLCs, and environmental probes in smart agriculture, metering, and building automation.