The Outdoor Ducted Fiber Optic Cable 12 fibers (Part number: FO12HARMADAYOFC) from with FO. Conduit cables are underground cables, that may be conducted by duct or buried directly into the ground. There are several types of protections for this cable such as anti-rodent or double protection. Conduit cables are built to withstand harsh environments and are typically routed by pull or blow.