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USR-N540

Product catalog summary

Overview
The USR-N540 is a 4-port serial to Ethernet converter designed for industrial IoT applications. It features a Cortex-M7 processor for high performance and reliability, supporting various communication protocols and configurations.

Key Features

Independent operation of four serial ports.
Wide voltage input range (5-36V) with reverse polarity protection.
Supports Virtual COM Port Driver (USR-VCOM), static IP, and DHCP client.
Modbus RTU to Modbus TCP protocol conversion.
Multiple hardware protections including ESD, Surge, and EFT.
Parameter configuration and firmware upgrades via built-in webpage.
Keepalive mechanism for connection stability.

Technical Specifications

Hardware: Input Voltage: DC 5.0~36.0V, Dimensions: 222x142x29mm, Operating Temperature: -40~85℃.
Interface: Ethernet Port: RJ45, 10/100Mbps, Serial Ports: RS-232, RS-422, RS-485, Baud Rate: 600~921.6kbps.
Protection: ESD Level 4, Surge Level 3, EFT Level 3.
Network Protocols: IP/TCP/UDP/ARP/ICMP/IPV4/DHCP/DNS.

Software Capabilities

Supports Modbus Gateway, Websocket, HTTP Client, and UDP Broadcast.
User configuration via setup utility, webpage, and AT commands.
Dynamic packet caching for efficient data handling.

Ordering Information

Model USR-N540-H7: RS232/RS485/RS422 with DB9 male connector.
Model USR-N540-H7-4: RS485 with 3Pin industrial terminal.

Support
For more information, visit the official website and shop, or access technical support through the provided links.

Catalog excerpts

USR-N540 Datasheet 4-port Serial to Ethernet Converter Build a Smarter IOT world, Your Trustworthy Partner Your Partner

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USR-N540 Datasheet USR-N540 is 4-port serial to Ethernet converter. It adopts Cortex-M7 solution,which has a main frequency up to 400MHz, powerful performance, fast transmission speed, and high reliability. Equipped with a deeply optimized TCP/IP stack, built in hardware and software watchdog and a variety of keepalive mechanisms,USR-N540 keeps online all the time. It supports TCP Client, TCP Server, UDP Client, UDP Server and HTTPD Client working modes, achieves data transparent transmission via simple configuration. New ARM core, Cortex-M7 solution, equipped with deeply optimized TCP/IP protocol...

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Supports hardware watchdog, automatically restarts when the device goes down. Supports websocket for bidirectional data transmission between a maximum of 16 websocket clients and any serial port. Supports serial and network AT commands. Supports UDP broadcast function. Metal shell, panel mounting. Dimensions: 222*142*29mm (L*W*H, including terminals and mounting ears) Your Trust Worthy Industrial IoT Partner

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Specifications Item Input Voltage Input Current 222*142*29mm (L*W*H, including terminals and mounting ears) Panel mounting Ground Screw Temperature Storage Temperature Operating Humidity Storage Humidity Ethernet Port Spec. Serial signals Interface Parameters Serial Baud Rate Flow Control None, RTS/CTS (RS-232 only), XON/XOFF Pull-down Resistor ESD-IEC61000-4-2 Hardware Level 3 Network Protocol Your Trust Worthy Industrial IoT Partner

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USR-N540 Datasheet Modbus Gateway Websocket HTTP Client Software User Configuring Setup utility, webpage, AT commands Serial Packets Cache Dynamic packet cache. For example: When the packet length is 10 byte, the serial port can cache 450 packets(4.5KB). When the packet length is 1460 bytes, the serial port can cache 10 packets(14.6KB). Ethernet Packets Ordering Guide Model Serial standards Serial signals Purchase & Support For more information please visit our websites:  Official website：https://pusr.com Official shop：https://shop.usriot.com Technical support： http://h.usriot.com/ Your Trust...

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USR-N540

USR-N540

Catalog excerpts

All Jinan USR IOT Technology Limited catalogs and technical brochures