Distributive automation system applied to security module and method using the thereof

Distribution automation systems have a security module of the present invention is applied is a server for monitoring and controlling the terminal of the power distribution grid of the lower side; Collecting a plurality of field information by a terminal (FRTU) to acquire, manage, FEP for storing and transmitting the collected information to the server; Communication devices that allow communication is performed between the on-site station (FRTU) and the FEP; And monitoring the condition of a distribution line, measure, and including a field terminal (FRTU) for transmitting the measured data to a remote, secure to the position between the server and the FEP performs data security server module and the communication device and to provide a technique of having a security module of the terminal is provided between the field terminal (FRTU) perform data security there is a technical feature.