ITU-T G.650.3 PDF

This Recommendation describes test methods that are particularly suited to the characterization of single-mode optical fibre cable links. The methods are not intended for application to links that contain optical network elements, amplifiers, dispersion compensators, passive splitters or combiners. Measurements associated with these devices in combination with optical fibre cable are defined in ITU-T G.66x or ITU-T G.67x series Recommendations. These measurements of the cable links between such devices and the calculation methods for combining the results of concatenated cable links are also presented.

This Recommendation uses a tiered approach. The first level indicates measurements that are normally carried out to commission new optical fibre cable links. The second level indicates measurements that may be carried out to satisfy service level agreements (e.g., when a dark fibre contract is signed) or to verify attributes of older links that may be used at higher bit rates or over extended wavelength ranges.