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Design and performance of a novel automatic fiber line testing system with OTDR for optical subscriber loops

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6 Author(s)
Tomita, N. ; R&D Center, NTT Telecommun. Field Syst., Ibaraki, Japan ; Takasugi, H. ; Atobe, N. ; Nakamura, I.
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This paper proposes architecture for a novel automatic fiber line testing system with an optical time-domain reflectometer (OTDR) and describes the system requirements, the design method, and the system evaluation. The results of a trial on a manufactured system and an evaluation of its characteristics are presented with evidence that an in-service optical fiber can be tested with no degradation in communication quality and the desired measurement accuracy and system component characteristics can be realized. In addition, it is confirmed that a failure between an optical fiber cable and a digital service unit (DSU) can be identified with 100% accuracy

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Lightwave Technology, Journal of  (Volume:12 ,  Issue: 5 )