USR IOT USR-K5

The USR-K5 module enables bidirectional transparent data transmission between a serial port and an Ethernet port. Users do not need to concern themselves with the underlying details, as protocol conversion is handled internally by the module. The serial side uses TTL-level signals, while the Ethernet side handles network packets. Working parameters can be specified through simple configuration. Settings can be applied via the built-in web interface or configuration software, and are permanently saved once configured.

The USR-K5 Super Ethernet Module is a compact serial-to-Ethernet module that enables direct transparent data transmission between an RJ45 Ethernet port and a TTL serial port. It can also be applied to RS232 and RS485 interfaces through level-shifting circuitry.

The K5 module features low power consumption, drawing only a small current at full operating speed. Equipped with an M0-series 32-bit processor, it delivers fast processing speeds and higher efficiency. The module's diverse functionality further meets a wide range of customer requirements.

The K5 module is easy to operate and offers strong compatibility. It maintains backward compatibility with the K5 configuration protocol while adding new features, ensuring convenience for existing users. Additionally, since the K5 and K3 configuration protocols are similar, customers currently using the K3 protocol can migrate to the K5 with only minor adjustments.

• 10/100Mbps adaptive Ethernet interface with AUTO-MDIX auto crossover/straight-through cable switching
• Configurable operating modes: TCP Server, TCP Client, UDP Client, UDP Server
• Serial baud rate configurable from 600bps to 230.4Kbps; supports None, Odd, Even, Mark, and Space parity
• Custom heartbeat packet mechanism for reliable connection verification and dead connection detection
• Custom registration packet mechanism for connection status detection, module identification, and custom packet header definition
• In TCP Server mode, the number of connected clients is configurable from 1 to 4 (default: 4); connected client IPs are displayed on the built-in web status page; data transmission/reception calculated per connection
• In TCP Server mode, configurable option to kick existing connections when maximum connection count is reached
• Parameter configuration via web page, AT commands, serial protocol, and network protocol; configuration protocol provided for customer software integration
• TCP Client short connection support with customizable disconnection timeout
• Configurable timeout restart (no-data restart) with customizable restart interval
• Configurable data buffer clearing before TCP connection establishment
• DHCP support for automatic IP acquisition
• Modifiable MAC address; globally unique MAC pre-programmed at factory
• DNS support for domain name resolution
• Customizable DNS server address
• Over-the-network firmware upgrade for convenient updates
• Virtual COM port support with USR-VCOM software developed by USR IoT
• Software and hardware factory reset both supported
• Operates across gateways, switches, and routers
• Compatible with LAN environments and external network access