This guide provides a complete installation process for armored fiber optic cords, explaining each step from routing and pulling to stripping, cleaning, and testing. It also highlights key differences from standard fiber cables and important precautions to ensure safety and. Armored fiber cables offer enhanced protection and durability, making them ideal for demanding environments. With proper. s the strongest armor with smallest bend radius and designed for all indoor & outdoor condit ec ions: Ducts, conduits and outdoor when installed according to NEC® on Fiber Category Fiber Storage Installation Operation Max. Dynamic Crush. Fiber Optic Outdoor 6 Fiber Unitube Cable with Corrugated Steel Armoring, OM3, with HDPE Jacket Click on image to enlarge.