The overhead optical cables should avoid friction with buildings, trees and other facilities, and avoid mopping or friction with other sharp and hard objects to damage the outer skin of the optical cable. If necessary, protective measures should be installed. Fiber optic cables enable high-speed, long-distance data transfer, forming the backbone of modern communication. Yet, outdoors, they face temperature swings, moisture, UV exposure, rodents, and human interference. Selected by the community from 35 contributions. Learn more Section Head Transport Network Planning and Design | Driving Business Growth Through Telecom Innovation | MBA, PMP |. Recommendation ITU-T L. This revision is intended to be appropriate for the current situation with respect to. Without considering the quality of the fiber optical cable itself, we believe that the performance of the optical cable will not "actively deteriorate" if the following points are achieved: 1. The optical fiber cable reel with optical cable should be rolled in the direction indicated on the side. Fiber-optic cables are the backbone of modern connectivity—powering 5G networks, global internet backbones, and data center interconnections with near-light-speed data transmission.