CM6550P CDMA DTU adopts high-powered ARM9 CPU and embedded real time operating system. It integrates all the commonly used protocols, such as TCP/IP/UDP and so on, from logical link layer to upper application layer protocols. It provides a secure, high speed, reliable wireless internet connection for customers. It supports several ways that trigger DTU to be online, including SMS and data. Also, it supports double or several data centers.This product has been widely used in finance, water supply, environment protection, electric power system, post and weather fields.