is a communication interface converter for data conversion from TCP/IP to RS-232. It is widely used in industrial control, access control system, attendance system, meal selling system, POS system, building automatic control system, power system, monitoring and data acquisition system, self-service banking system, etc.Its built-in RTOS (real-time operating system) and complete TCP/IP communication protocol enable the   not only provides a reliable and stable operating platform, but also enables the original system to be easily and quickly remote management via the Internet