USR-TCP232-T2 UART TTL to Ethernet Converter Module TCP/IP Serial Port Server

The USR-TCP232-T2 UART TTL to Ethernet Converter Module provides bidirectional transparent data transmission between TTL UART serial devices and Ethernet networks for industrial, automation, and IoT applications. Based on the ARM Cortex-M0 core, it features fast speed, high efficiency, and low latency.

This Serial to Ethernet TCP/IP Module supports TCP Server, TCP Client, UDP Client/Server, and HTTPD Client modes, Modbus RTU to Modbus TCP gateway functionality, and reliable performance with watchdog mechanisms. Suitable for direct serial-to-LAN communication, device networking, and embedded system upgrades, it offers easy configuration via web, AT commands, or provided software, making it ideal for industrial data transmission and remote device control.​

Features:

• Transparent bidirectional data transmission between TTL UART and Ethernet RJ45 (10/100Mbps)
• ARM Cortex-M0 32-bit processor, optimized TCP/IP stack
• Supports TCP Server, TCP Client, UDP Server and Client, HTTPD Client modes
• Modbus RTU to Modbus TCP gateway support
• DHCP and DNS for automatic IP addressing
• Built-in and software watchdogs; auto-restart on fault
• Baud rate 600–460.8Kbps, full parity selection (None, Odd, Even, Mark, Space)
• Multiclient support (up to 16 clients in TCP server mode)
• User-defined web page support and virtual COM software (USR-VCOM)
• Heartbeat mechanism for reliable connection.​

Specifications:

• Processor: ARM Cortex-M0, 48 MHz ​
• Ethernet Port: 1 x RJ45, 10/100Mbps, Auto-MDI/MDIX ​
• Serial Port: 1 x TTL, 3.3V level ​
• Baud Rate: 600–460.8Kbps ​
• Data Bits: 5, 6, 7, 8 ​
• Parity Bit: None, Odd, Even, Space, Mark ​
• Stop Bit: 1, 2 ​
• Power Input: 3.3V DC (3.0–3.6V), 5V DC (4.75–5.5V)
• Working Current: 150mA @ 3.3/5V ​
• Operating Temp: -25°C ~ +75°C ​
• Storage Temp: -40°C ~ +105°C ​
• Humidity: 5% ~ 95% RH (non-condensing) ​
• Dimensions: (L x W x H) 50.5 x 22.6 x 15.0 mm ​
• Serial Cache: 800 bytes ​
• Network Cache: Send: 6K bytes, Receive: 4K bytes ​

Application:

• Industrial data acquisition and automation
• Remote device monitoring, security systems
• Smart home, energy management, environment sensors
• Building management systems, access control, POS terminals
• Embedded system LAN integration and upgrades.​

Package Includes:

• 1 x USR-TCP232-T2 UART TTL to Ethernet Converter Module