Transmission cable tests


Determination of transmission property changes in optical and/or electrical cables. Optical water detectors, fusion splice and plug connections before, during and after being subjected to environmental, mechanical, tensile and/or temperature stress.

If the client so wishes, he may be present during testing.

Testing in the presence of TÜV Süd:
This option is particularly recommended where proof of faults is required for court cases.

Optical OTDR- measurements

Attenuation coefficient at ambient temperature and/or attenuation change during temperature cycling.

  • Determination of attenuation jumps at the cable ends and in the cable, and determination of the attenuation coefficients for the shortest, medium and longest fibres previously selected after measuring the fibre excess length, as well as for all the remaining fibres connected together.
  • Sample lengths < 200m up to  > 3000 m, with approx. 1000 m dead zone fibres at both cable ends.
  • Test temperature: ambient temperature


Electrical measurements

  • Determination of transmission property changes as a combined test, for mechanical testing

Please contact us if you would like further information.

Range of tests

PMD- measurements

Optical measurement Polarisation mode dispersion (PMD test)

  • Temperature cycling (lengths up to 2000 m)
  • Static/ dynamic tensile stress (lengths up to 200 m)
  • Optical fibre length measurement ("overlength")
  • Stress measurement after ageing
  • Optical fibre elongation measurement (in acc. with IEC 60794-1-2/ method. E1B)


OTDR- measurements

Determination of attenuation change during temperature cycling

  • fusion splice connection
  • plug connection
  • water detectors
  • Backscatter method of measurement (Sample length 20-50 m)
  • Temperature cycling (max +100°C, min. -70°C)

Fibre Optics CT GmbH
Consulting & Testing

Zazenhäuser Straße 52
D - 70437 Stuttgart

Tel.:  +49 (0)711 87 08 572
Fax.: +49 (0)711 87 12 30

Email: Service(at)