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- SKU: 08091
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USR-M100S-ETH Industrial Remote I/O Edge Gateway with Ethernet - RT-Thread OS
The USR-M100S-ETH Industrial Remote I/O Edge Gateway with Ethernet is a compact industrial IoT and edge computing gateway designed for remote monitoring, protocol conversion, data acquisition, and industrial automation. Running on RT-Thread OS, it enables seamless communication between field devices, industrial controllers, SCADA systems, and cloud platforms. It combines built-in I/O, serial communication, Ethernet networking, and edge processing capabilities in a DIN-rail mountable industrial enclosure.
This gateway supports Ethernet connectivity with RS232/RS485 interfaces, making it suitable for connecting legacy industrial equipment to modern IoT infrastructures. With support for Modbus RTU, Modbus TCP, JSON, MQTT, HTTP, TCP/UDP, and SSL/TLS protocols, the device enables reliable protocol conversion and secure data transmission across industrial networks and cloud services.
Integrated Remote I/O functionality includes 2 Digital Inputs (DI), 2 Relay Outputs (DO), and 2 Analog Inputs (4–20mA) for direct field signal acquisition and control. Built-in edge computing functions help process data locally, reducing bandwidth requirements and improving response time for automation tasks.
Features
- RT-Thread industrial operating system
- Ethernet 10/100 Mbps with Auto MDI/MDIX
- Dual serial communication (RS232 / RS485)
- 2× DI, 2× Relay DO, 2× AI (4–20mA)
- Modbus RTU ↔ TCP / JSON conversion
- MQTT, HTTP, TCP/UDP, SSL/TLS support
- Edge data acquisition and processing
- DIN rail and wall mounting options
- Wide operating temperature: −25°C to +75°C
- Wide power input: 9–36V DC
- Industrial protection with ESD and surge resistance
Specifications
- USR-M100S-ETH
- Operating System: RTOS
- Data Points: 1000
- Network: Ethernet
- Supporting Regions: Global
- Frequency Bands: Not Applicable
Package Includes
- 1x USR-M100S-ETH Industrial Remote I/O Edge Gateway with Ethernet - RT-Thread OS

Warranty Terms :
Branded products (Waveshare/ Raspberry Pi/ Radxa/ DWIN etc) are as per brand warranty terms. Generic products are eligible for replacement within 7 days of delivery based on following conditions.
Products are eligible for a replacement if there is physical damage during transit or a clear manufacturing defect. Any claim for damage/ wrong items/ replacement must be made within 48 hours of successful delivery of the product. Requests for refund of amount or exchange of product(s) will be reviewed on a case by case basis and HUBTRONICS carries final rights to take a final decision on refund, store credit or exchange.
What to take care of ?
Most of our products are technical in nature and require trained personnel to handle them. Any kind of mishandling can result in damage or malfunctioning of the product, it is not possible for us to provide a replacement or refund if the product is damaged due to technical or physical mishandling.
Who pays the return shipping cost?
Free of cost return pickup from delivery address is eligible for products categorized as manufacturing defect/ Damage in transit/ Wrong items delivered. We do not support return pickup for any B2B order or offline orders not placed on website. Buyer need to arrange return shipping for B2B orders.
What voids warranty?
Please note that replacement/ return or refund is not possible if the product is not compatible with your system/application. Please check all the technical details/ dimensions etc. before ordering and contact us for any kind of clarifications.
If product is soldered/ programmed at any point or physically altered in any way, it is not eligible for return/ replacement. If the item requires soldering for testing, please ensure that you use suitable clips or jig to test it without soldering. Any kind of soldering job makes the product ineligible for return or replacement.
Following items are not eligible for return under any circumstances
- Device Programmers / Dongles
- Soldering Consumables (Wire, Flux etc)
