ITU-T L.25 PDF

This Recommendation describes the general features and definitions for the maintenance and operation of optical fibre cable networks for use in telecommunication services.

The objective of this Recommendation is to identify the general functions of optical fibre cable network maintenance, and to provide information on relevant Recommendations in the field of maintenance and operation of optical fibre cable networks.

This Recommendation deals with non-gas pressurized cable networks. The maintenance and operation of the transmission equipment and facility management are not dealt with in this Recommendation. Submerged optical fibre cable such as that used in submarine systems is also not dealt with in this Recommendation, which is described in, for example, [ITU-T G.979].