Indoor Armored Fiber Optic Cable

Indoor Armored Fiber Cable

Indoor armored fiber optic cable often consists of tight-buffered or loose-buffered with strength members and an inner jacket. The inner jacket is commonly surrounded by spirally-wrapped interlocking metal tap armor. It can retard fire effectively by using LSZH material in jackets.

Indoor armored fiber optic cable is used in building wiring applications. Installed in walls, between floors, in plenum air handling ducts and under data center floors. It is flexible and easy to handle. Light-weight aluminum interlock armor eliminates the need for inner duct or conduit and the cost associated with the installation of either. With a plenum rating, this cable can go from outside to virtually any indoor location. Indoor armored fiber optic cable is an ideal intra-building cable solution.

Features: Why Choose Indoor Armored Fiber Optic Cable?

  • Armored Construction: Indoor armored fiber optic cables are designed with a protective layer or armor, typically made of metal or aramid yarn, surrounding the fiber strands. This armor provides additional strength and durability, making the cable more resistant to physical damage, such as crushing, bending, or rodent gnawing.
  • Enhanced Protection: The armored layer in indoor cables offers increased protection against environmental hazards and external interference. It helps safeguard the delicate fiber strands from potential hazards in indoor environments, such as accidental impacts, cable crushes, or sharp objects.
  • Indoor Fire Safety: Another distinguishing feature of indoor armored fiber optic cables is their compliance with fire safety regulations. These cables are engineered to have fire-resistant properties, often meeting specific fire rating standards, such as National Electrical Code (NEC) requirements. This ensures that they contribute to a safer indoor environment in the event of a fire.

Armored Fiber Optic Cable Type And Application

Armored fiber optic cables are available in two types: interlock armored fiber cables and corrugated armored cables.


  • Interlock armored fiber cables feature aluminum armor that is helically wrapped around the cable. This type of armor offers ruggedness and superior crush resistance, making it ideal for both indoor and outdoor installations. It provides robust protection, ensuring the cable’s durability even in challenging conditions.
  • Corrugated armored cables, on the other hand, utilize a longitudinally folded coated steel tape as the armor. While primarily used in outdoor cables, it offers additional mechanical strength and protection against rodents.  Click here if you are looking for outdoor armored fiber cable.
  • Both interlock and corrugated armored fiber cables are designed to withstand hazardous conditions.
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