The NPS5110 is a mini-size RS232 device server and IoT gateway specifically designed for industrial environments. It integrates multiple functions, including serial device server, Modbus gateway, MQTT gateway, RS485-to-JSON gateway, and virtual COM port device tool. The device features one RS232 DB9 interface and one RJ45 Ethernet port, offering reliable connectivity. Its mini size ensuring ease of deployment, while the terminal power supply allows for a wide power voltage input range of 10~30VDC. The NPS5110 presents a cost-effective and space-efficient solution compared to standard products.