A Model of the Fiber-Optic Cable Reliability with the Restoration of Communication by Connecting at the Breakage Point Caused by a Sudden Failure

Viatcheslav Shuvalov, Boris Zelentsov, Irina Kvitkova

Abstract


The article proposes a method for calculating the reliability measures of a fiber-optic cable, taking into account the effect of both gradual and sudden failures. The cause of gradual failures is the aging of the optical cable, and an increase in signal attenuation over time, resulting in a degradation failure (a decrease in the level of the received signal below the critical one), which leads to the replacement of the optical cable. The appearance of a sudden failure caused by an outside intervention is accompanied by repair work on connecting the cable at the breakage point. The appearance of each new connection leads to an additional attenuation of the signal and an increase in the unavailability factor. In the article is also considered the impact of control errors of the first kind on the unavailability factor.

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References


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