| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for evaluating a failure in a transmission line optical fiber, in which the failure in the transmission line optical fiber is evaluated in a short time by means of a wavelength division multiplex (WDM) device which transmits an SV signal containing wavelength reception interruption information and SV wavelength reception interruption information of a present station and collects wavelength reception interruption information and SV wavelength reception interruption information of the other station. <P>SOLUTION: The apparatus includes: a detection means for detecting information on signal wavelength interruption and SV wavelength interruption of the present station; a transfer means for periodically transferring the information detected by the detection means to the other station, a collection means for periodically receiving and collecting, in the present station, information on wavelength interruption and SV wavelength interruption detected by the other station; and an evaluation means for evaluating the failure in the transmission line optical fiber based on the information detected by the detection means and the information collected by the collection means. <P>COPYRIGHT: (C)2010,JPO&INPIT |
