The RAK2461 WisNode Bridge IO Lite is a Modbus-to-LoRaWAN® converter designed to integrate digital inputs (DI), relay outputs (DO), and RS-485 communication into LoRaWAN networks. Tailored for indoor industrial and building automation, it enables reliable, long-range wireless connectivity for monitoring and controlling legacy equipment. Key Features: Supports up to 200 Modbus devices Auto-channel configuration and real-time testing Built on RAK3172-T module with TCXO for frequency stability Watchdog timer for enhanced reliability Scalable deployment for IoT applications Variants: RS485-DIx4-DOx1: One RS485 interface, four digital inputs (DI), one digital output (DO) RS485-DOx4: One RS485 interface, four digital outputs (DO) LoRaWAN® Region Options: 800 MHz: EU868 / IN865 / RU864 900 MHz: US915 / AU915 / KR920 / AS923 Compliance & Notes: Ensure correct LoRaWAN region selection before deployment. Designed for critical installations requiring stable performance under variable temperature conditions. Product Features High Modbus Polling Capacity: Supports up to 200 Modbus devices, significantly more than typical Modbus-to-LoRaWAN converters. This makes the RAK2461 ideal for large-scale applications, reducing the need for multiple devices and simplifying network infrastructure. Robust Reliability with Watchdog Timer: The built-in watchdog timer provides an additional layer of reliability for continuous operation. It monitors the system for software issues or potential crashes and automatically resets the device if unresponsive, ensuring high uptime for mission-critical deployments. Wide Temperature Range: Operates from -20°C to +70°C, making it suitable for demanding industrial and building environments. Mounting Options: Supports both DIN rail and wall mounting, catering to various installation needs in control panels and automation setups. Wide Voltage Input: Accepts 9V ~ 24V DC power input, allowing compatibility with a range of industrial power sources Advanced Configuration & Easy Integration with IO.Box The RAK2461 is compatible with IO.Box, a cross-platform configuration tool that simplifies the setup and management of LoRaWAN-enabled IO devices. This tool offers: Real-Time Data Testing: Verify Modbus, DI, and DO sensor configurations in real time to ensure correct setup before installation. Auto Channel Selection: Automatically sets up LoRaWAN channels, reducing manual adjustments and ensuring optimal performance. LNS Integration: Single-click integration with popular LoRa Network Servers (currently supporting ChirpStack, with more platforms planned). Bulk Deployment Ready: Designed for scale, the IO.Box offers import/export functions, simplifying large-scale sensor setups and enabling quick, centralized configuration for mass deployments. Applications Industrial Automation: HVAC systems, lighting control, and water or gas metering. Building Automation: Energy monitoring, sensor integration, and control of legacy equipment. Smart Infrastructure: Ideal for retrofit projects, allowing legacy systems to communicate wirelessly over LoRaWAN. Technical Specifications LoRaWAN Protocol: LoRaWAN 1.0.3, supports Class C Interfaces: RS485 host port: 1x Digital Inputs (DI): 4x photocoupler ports (optional variant) Digital Outputs (DO): 4x relay NC/NO ports (optional variant) Power Supply: 9V ~ 24V DC Environmental Rating: Indoor, -20°C ~ +70°C Mounting: Wall and DIN rail mounting options Hardware Stability: Built-in TCXO and watchdog timer for enhanced reliability Regional parameter version: RP001-1.0.3 Package Inclusions 1x RAK2461 WisNode Bridge IO Lite (Choose between RS485-DIx4-DOx1 or RS485-DOx4 variant) 1x Wall or DIN Rail Mounting Kit (Choose between variant) 1x LoRa Antenna Terminal Blocks: 1x 4-Pin, 2x 8-Pin 1x USB Cable（USB Type C to Type A） 1x Power Adapter (USB Type C) The RAK2461 WisNode Bridge IO Lite is your go-to solution for scalable, reliable, and efficient LoRaWAN integration in indoor industrial and building automation settings. Documentation Datasheet Quick Start Guide
