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  • Kabelberichte

    Kupfer- und Faserkabelindustrienachrichten, standardmäßige Änderungen/Aktualisierungen, Kundeneinblicke und geteiltes Lernen.


It seems like just yesterday we were talking about spring cleaning, and now we’re moving into the dog days of summer. And it’s hot.


In the 2014 version of ISO/IEC 14763-3, testing of optical fiber cabling, unidirectional testing for permanent links is required. In specific cases, bi-directional testing is required. However, ISO/IEC 14763-3 provides no information on how a bi-directional test should be done - this article explains how.

When Bi-Directional Testing is Required


Testing and characterizing a permanent link with an OTDR requires the measurement of connector attenuations A/B and fiber loss C. To make this measurement, a launch and tail cord are needed (see Figure 1).

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