ITU-T L.312 PDF

This Recommendation describes the functional requirements of optical fibre cable maintenance systems for optical fibre cables carrying high total optical power. It applies to test equipment, optical switches for selecting fibre under test, test access modules for connecting test equipment to the communication line, testing optical fibre cords and optical connecting devices that are part of the maintenance system. It also considers safety procedures and guidelines for the maintenance of outside optical fibre plants carrying high total optical power.