Fiber optic cables are delicate and can easily be damaged when you disconnect the cables from the connectors. The MBR can be expressed by multiplying 10 by the. Effective lifecycle management of fiber optic cables, from selection and installation to daily maintenance and replacement, is essential. Improvement of Signal Quality: Regular cleaning and maintenance of fibre optic cables help ensure optimal signal. A general practice of cleaning optical cables and module OSAs is a good and recommended habit to ensure overall system reliability and peak performance.