PBX occasional " crash" failure, sometimes does not occur, the number of occurrences sometimes more, sometimes less, but the frequency of occurrence, therefore, divided into program-controlled switches, a temporary failure of crash failures, random failures. Caused by program-controlled switches, " crash" the causes are the following: Clear Reset signal problems, problems with the clock pulse signal, the noise problems caused by anti-dried, and environmental conditions of delay. This paper, the HJD-04 program-controlled switches, " death" failure analysis, Analysis of crashes caused more than a few reasons.

浅析程控交换机死机故障的原因.pdf

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