USR IOT USR-K3

The Super Ethernet Module USR-K3 is a brand-new, compact serial-to-Ethernet module capable of transparent data transmission between an Ethernet port and a TTL serial port. Powered by ARM's Cortex-M4 processor, it offers the advantages of low power consumption, high speed, and excellent stability.

The product width is equivalent to a standard RJ45 connector, with a length less than twice that of a standard Ethernet connector. Its ultra-compact form factor draws only 120mA at full operating speed.

The integrated TCP/IP stack enables users to easily implement network connectivity for embedded devices, reducing manpower, resources, and development time — allowing products to reach market faster and enhancing competitiveness.

This product has undergone rigorous testing and has been successfully deployed in demanding network environments, including banking networks, highway networks, large enterprise networks, high-traffic camera networks, and complex fiber-to-Ethernet conversion environments.

• ARM core, industrial temperature range, optimized TCP/IP stack, stable and reliable
• 10/100Mbps Ethernet port, Auto-MDI/MDIX support, automatic crossover/straight-through cable detection
• Supports TCP Server, TCP Client, UDP Client, UDP Server, and Httpd Client operating modes
• Built-in web page for parameter configuration; supports custom web page development; built-in web server port configurable (default 80)
• Reserved RS-485 enable pin
• RTS/CTS hardware flow control and Xon/Xoff software flow control support
• Compatible with virtual COM port software (USR-VCOM)
• Serial baud rate: 600bps–1Mbps; five parity modes: None, Odd, Even, Mark, Space
• Modbus gateway function for industrial field deployment
• Reload button for hardware factory reset
• RJ45 with Link/Data indicators; built-in isolation transformer, 1.5KV electromagnetic isolation
• Globally unique MAC address (prefix D8-B0-4C); user-defined temporary MAC address supported
• Firmware upgrade over network; DNS support; DHCP auto IP assignment
• Keepalive mechanism for fast dead connection detection and reconnection
• Account and password support for web login and network configuration, enhanced security
• Single-channel WebSocket support for bidirectional data transfer between web and serial port

• Banking
• Highways
• Large enterprise networks
• High-traffic camera networks
• Complex network environments such as fiber-to-Ethernet conversion