



PUSR USR-M300 high performance I/O gateway
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PUSR USR-M300 high performance I/O gateway
PUSR USR-M300
Rich and highly reliable connectivity
Several Internet access methods are offered: LTE 4G/3G global frequency, Ethernet port and ADSL.
Router function is supported: Routing, VPN and firewall.
Super Powerful Edge Computing Capabilities
Powerful chipset: Dual-core processor, main frequency up to 1.2GHz, Linux system.
Parallel Acquisition: Actively collect data from serial ports, network ports and I/O devices at the same time, with up to 2,000 data collection points.
Flexible reporting: Users can set reporting conditions and select reporting channels according to their needs.
Alarm function: Discover anomalies on the gateway in real time, so that users can correct anomalies quickly to avoid economic losses.
Support for custom self-development
Graphical programming (Node-RED) allows edge computing functions to be rapidly developed to meet unique functional needs.
Modbus gateway
Suitable for a variety of industrial IoT scenarios, supporting Modbus RTU/TCP protocol conversion and other popular PLC common protocols.
Modular IO gateway, easy to expand
Modular design, uses can expand different types of IO modules: DI, DO, AI, AO, IO.
It is easy to slide to quickly access the I/O expansion machine, to meet the needs of more scenarios.
Industrial design, easy installation
EMC protection level 3, IEC6000.
Wide power range: DC12~24V.
Wide operating temperature: -25~75℃.
Installation: Wall mounting and Din rail mounting.
Support rapid access to the general public
Cloud Platform Services
Quick access to PUSR Cloud, Alibaba Cloud and AWS
Supports standard MQTT and TCP protocols
It can also quickly connect to public cloud platforms such as ThingsBoard and Azure
Dimensions and interfaces
Serial ports: 1*RS232/485, 1*RS485
Ethernet ports: 1*WAN/LAN, 1*LAN
IO: 2*DI, 2*DO, 2*AI (Current)
Power supply: DC 9~36V
Antenna: SMA-female
Recharge: If you forget the settings, a long press restores factory settings
Application cases
Industrial Automation : The USR-M300 connects sensors, meters, actuators and other industrial equipment to a central network. It ensures the collection and transmission of data for the monitoring and control of manufacturing processes.
Telemetry and Remote Monitoring : It is ideal for monitoring remote sites such as power generation facilities, weather stations, storage tanks, etc. It collects data remotely and transmits it to the control center.
Infrastructure Management : The USR-M300 can be used to monitor and control infrastructure such as bridges, tunnels, irrigation systems, etc. It makes it possible to detect problems and optimize maintenance.
Security Systems : It can be integrated into security systems to monitor alarms, surveillance cameras, access doors, etc.
Smart agriculture : It facilitates the collection of data from agricultural sensors (e.g. soil moisture sensors, temperature sensors, etc.) and enables more efficient management of agricultural resources.
Energy Management : The USR-M300 can be used to monitor energy consumption, electricity meters, solar panels, etc.
Transportation and logistics : It provides communication between vehicles, warehouses and distribution centers, allowing real-time tracking of goods and vehicle fleets.
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Processor |
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External I/O |
2 Ethernet ports, 2 serial ports, 2 DI, 2 relay DO, and 2 AI
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Power Supply |
9-36 VDC
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Operating Temperature |
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Mounting Type |
DIN rail and Wall-mounted
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Operating Systems |
Linux and Node-RED
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Number of LAN Ports |
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Number of WAN Ports |
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Supported Protocols |
Modbus RTU, Modbus TCP, MQTT, OPC UA Server, and Node-RED
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