User Documentation

Installation
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Typical bre connections are affected by various limitations which have a major
impact on transmission behaviour. These limitations cause backscattering and
additional attenuation. They include the various splicing connections and also
the direct limitations of the bres themselves from severe bending, fractures
or cracks. Each of the limitations mentioned has its own typical reection
characteristic and can therefore be detected and analysed directly in the OTDR
measurement.
(Source:PROFINETCommissioningGuideline,Version1.01,July2010)