Worn or damaged latching mechanisms on connectors or adapters are sometimes the culprit. Within the link itself, the fiber may have experienced microbends or macrobends, or it could have been damaged with a break somewhere along the length of the fiber. Or it could be caused by the quality of the connector itself, such as poor end-face geometry that doesn't pass the parameters defined by IEC PAS 61755-3 standards, including angle of the polish, fiber height, radius of curvature or apex offset. These high-speed, high-capacity communication networks are increasingly replacing copper cables, offering superior performance and. This fibre connector got crushed and now it's obviously broken. No way of replacing the run, it goes under the floor and is inaccessible. Any advice would be. Fiber optic networks are celebrated for their speed and reliability, but even the best systems can encounter problems. Figure 1 illustrates the parts of a SC-type fiber optic connector.