ITU-T L.85 PDF

This Recommendation:

– describes functional requirements and methods for optical fibre identification for the construction and maintenance of optical access networks;

– deals with an optical fibre identification technique that functions by measuring certain optical characteristics. The optical fibre characteristics should comply with [ITU-T G.652] and [ITU-T G.657], which relate to single-mode optical fibres. It also considers the procedures and requirements for optical fibre identification, including in-service fibre lines, without interfering with optical communication signals in access networks;

– describes the optical fibre identification technology that can be applied to different topologies of optical access networks.