Serial RS232/RS485/RS422 to Ethernet Converter
- Estimate pricing$ 109.6
- AvailabilityIn stock
- ModelUSR-N540
- ProcessorTI Cortex-M4
- Serial ports4 ports, each RS232/RS485/RS422 selectable (default RS232 DB9 male)
- EthernetRJ45 10/100Mbps, Auto-MDI/MDIX
Products Description
USR-N540, 4 serial port Ethernet converter which can realize transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface. Industrial Solution TI Cortex M4 Solution, -40~85C Web Server Web socket/ Web to Serial Modbus Gateway Modbus RTU to Modbus TCP / Modbus Pollinig Flow Control CTS/RTS, XON/XOFF Protection Watchdog circuit, never cash ESD 8KV Anti-surge Network Network Printing 2 network links, each serial support sending data to two servers Feature of 4 ports Serial Ethernet Converter TI Cortex-M4 kernel,industrial working temperature range and TCPIP protocol stack. Auto-MDI/MDIX,RJ45 port with 10/100Mbps TCP Server,TCP Client,UDP Client,UDP Server and HTTPD Client work mode 4 ports can work independently at the same time Can distinguish which serial port connects to the device via port number Support virtual serial port and provide corresponding software USR-VCOM Serial baud rate from 600bps to 230.4K bps DNS and DHCP supported Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS Built-in webpage;also can customize webpage for users The global unique MAC address bought from IEEE (begin with D8-B0-4C);user can define MAC address Support upgrade firmware via network Support keepalive,rapidly detect dead links Support account and password,can be used to page login and network settings Support one channel Websocket,realize bidirectional transparent transmission between webpage and serial 0 Support Modbus RTU to Modbus TCP Support UDP broadcast function Each serial can work as rs232,rs485 or rs422; Default port is RS232 BD9 male port Four channel serial communication indicator: TX/RX, CTS/RTS, XON/XOFF Support DC adapter and 5.08-2 terminal power supply Reload button,one key to restore default settings RJ45 with Link/Data indicator light,built-in isolation transformer and 2 KV electromagnetic isolation Application Field of 4 ports Serial Device Servers Industrial data transmission, industrial automation security and protection monitoring, public security Smart home, power control, environmental monitoring, intelligent agriculture Door check on work attendance system, POS system, rice selling system Building automation system, power monitoring, self-service banking system, telecom machine room monitoring
Product Categories
Products Specification
- ModelUSR-N540
- ProcessorTI Cortex-M4
- Serial ports4 ports, each RS232/RS485/RS422 selectable (default RS232 DB9 male)
- EthernetRJ45 10/100Mbps, Auto-MDI/MDIX
- Work modesTCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client
- Modbus gatewayModbus RTU to Modbus TCP, Modbus multi-host polling
- Web serverWeb socket, Web to Serial
- Virtual serial portUSR-VCOM software provided
- Baud rate600bps to 230.4K bps
- Flow controlCTS/RTS, XON/XOFF
- Power supplyDC adapter and 5.08-2 terminal
- Operating temperature-40~85C
- ProtectionWatchdog circuit, ESD 8KV, Anti-surge
- CertificationsCE/FCC/RoHS/WEEE
- MAC addressIEEE global unique (begin with D8-B0-4C), user definable
- Network links2 network links, each serial supports sending data to two servers
- IndicatorsFour channel serial communication indicator: TX/RX, CTS/RTS, XON/XOFF
- ConfigurationBuilt-in webpage, customizable webpage, reload button
- DNS/DHCPSupported
- KeepaliveSupported
- Account/PasswordSupported for page login and network settings
- WebsocketOne channel, bidirectional transparent transmission
- UDP broadcastSupported
- Network printingSupported
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The USR-N540 is a four-port serial-to-Ethernet converter where each port can be independently configured as RS232, RS485 or RS422 (default RS232 on DB9 male connectors). It uses a TI Cortex-M4 kernel with TCP/IP protocol stack, supports Modbus RTU to Modbus TCP gateway and multi-host polling, and offers TCP server, TCP client, UDP client, UDP server and HTTPD client modes. Each serial port can connect to two target servers, and the unit provides a built-in web server with web-socket, virtual serial port driver (USR-VCOM), DNS/DHCP, keepalive, account/password protection, and firmware upgrade over the network. The device operates from -40 °C to 85 °C, accepts both DC adapter and 5.08 mm terminal power, includes 8 kV ESD and anti-surge protection, a watchdog circuit, and per-port TX/RX and CTS/RTS/XON/XOFF indicators.
Import Wholesale Serial RS232/RS485/RS422 to Ethernet Converter for Your Business Needs
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About Supplier
Jinan USR Iot Technology Limited is a premier leather products export company, established in 2010 and based in China. With a decade of experience, Jinan USR Iot Technology Limited has built a reputation for delivering high-quality leather goods to clients across the globe. The company specializes in a wide range of leather products, including bags, wallets, belts, and custom leather accessories, all crafted with precision and attention to detail. Leveraging advanced manufacturing techniques and stringent quality control processes, Jinan USR Iot Technology Limited ensures that each product meets the highest standards. The company’s commitment to excellence, timely delivery, and customer satisfaction has made it a trusted name in the international market.Jinan USR Iot Technology Limited continues to expand its global footprint, exporting its superior leather products to various countries, while maintaining strong relationships with clients worldwide.
Supplier Details for Serial RS232/RS485/RS422 to Ethernet Converter
- Established - 16 Oct, 2026
- Business Type - Contact Seller
- Deals in Product Type - Networking & Internet Peripherals
- Country - China
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Jinan USR Iot Technology Limited, a reliable B2B trader from China, dispatches Serial RS232/RS485/RS422 to Ethernet Converter primarily through the port at China. Packaging types (e.g., bulk, custom, eco-friendly) and estimated pricing may vary based on order volume and destination. To get detailed logistics and pricing information, reach out via the Inquire Now button or Sign Up for direct supplier interaction.
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