摘要 |
A fault detection and recovery apparatus for a full electronic telephone exchange processor and a method thereof are provided to minimize system failure time by carrying out a self-recovery function without system re-driving in case a fault occurs in a processor state managing block. An OMP(Operation and Maintenance Processor)(10) comprises an operation and maintenance block(11) and a fault processing block(12). A full electronic telephone exchange processor(20) consists of an operation and maintenance handler(21), a request answerback message detection block(22), and an automatic recovery block(23). The request answerback message detection block(22) periodically detects a request answerback message signal transmitted from the OMP(10). In case the operation and maintenance handler(21) doesn't make any response even though the request answerback message detection block(22) has received the same request answerback messages from the OMP more than two times(10), the request answerback message detection block(22) controls the automatic recovery block(23) so as to execute an automatic recovery function. The automatic recovery block(23) initializes the physical layer and internal memory of the full electronic telephone exchange processor(20) according to the control of the request answerback message detection block(22).
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