Patent ID: 6934894
Filing Date: 2005-08-23
Classification: H04Q

Abstract:
1. A control apparatus for controlling a recovery of a terminal-station apparatus comprising: a subscriber-line termination unit, which has a plurality of first going-up reception channel units accommodating a plurality of terminal apparatuses and a plurality of first going-up transmission channel units and is used for connecting each of said first going-up reception channel units to a corresponding one of said first going-up transmission channel units; a cross-connect unit, which has a plurality of second going-up reception channel units and a plurality of second going-up transmission channel units and is used for connecting each of said second going-up reception channel units to a corresponding one of said second going-up transmission channel units; and an exchange connection unit being connected each of said second going-up transmission channel units and an exchange, wherein said control apparatus comprising: a communication-state-monitoring unit for detecting an abnormality appearing at each of said second going-up transmission channel units; a first channel-identifying unit for identifying one of said second going-up reception channel units that is connected to said second going-up transmission channel unit determined by said communication-state-monitoring unit as a channel unit indicating an abnormality; a second channel-identifying unit for identifying one of said first going-up reception channel units that is connected to said second going-up reception channel unit identified by said first channel-identifying unit through one of said first going-up transmission channel units; a first control unit, which is used for controlling said cross-connect unit so as to connect a particular one of said second going-up transmission channel units to an available one of said second going-up reception channel units in case said particular one of said second going-up transmission channel units is determined by said communication-state-monitoring unit as a channel unit indicating an abnormality; and a second control unit for controlling said subscriber-line termination unit so as to connect said first going-up reception channel unit identified by said second channel-identifying unit to an available one of said first going-up transmission channel units.