AUTOMATIC SELECTION CONNECTION METHOD IN AUTOMATIC MDF DEVICE

PURPOSE:To provide an automatic selection connection method in the automatic MDF device in which occurrence of a link block is effectively reduced without need of complicated operation technology for the maintenance personnel and the job efficiency is effectively improved. CONSTITUTION:A controller 4 of the automatic MDF monitors the connection state of a subscriber line to an exchange and the controller 4 designates an incoming terminal and its service class connected from an operation terminal equipment 6 and the controller 4 retrieves an idle path connecting to the subscriber circuit of the service class corresponding to the exchange in a network based on the designated information and connects automatically the incoming terminal designated through an idle path when an idle path is in the network and retrieves an idle path connecting to the subscriber circuit of the relevant service class via a jumper link 3 and other network and connects the path automatically to the subscriber circuit when no idle path is in the relevant network.