List of items to include in armored multimode fiber optic cables

Armored multimode fiber optic cables include a fiber core, strength members, metal armor, and a protective outer jacket to ensure durability and reliable data transmission.Key Components1. Optical Fiber Core The central element of the cable, consisting of one or more multimode fibers (OM1, OM2, OM3, OM4, OM5) that transmit data via light pulses. These fibers are optimized for high-speed data over shorter distances, commonly used in LANs and data centers . 2. Strength Members Materials such as aramid fibers (Kevlar) or fiberglass rods are included to provide tensile strength, prevent elongation, and protect the fibers from mechanical stress during installation and operation . 3. Armor Layer A metal layer, typically steel or aluminum, is wrapped around the fiber core to protect against crushing, bending, abrasion, and rodent damage. Armor types include interlocking metal tape (helically wrapped) and corrugated steel tape (longitudinally folded), depending on whether the cable is intended for indoor or outdoor use . 4. Inner Sheath or Tube The fiber core and strength members are often enclosed in a light steel tube or protective inner sheath, which provides additional mechanical protection and may contain gel or dry core materials for moisture resistance . 5. Outer Jacket The outermost layer, made from materials like polyethylene (PE), polyvinyl chloride (PVC), or low smoke zero halogen (LSZH), protects the cable from environmental factors such as UV radiation, chemicals, moisture, and temperature extremes . 6. Optional FeaturesMoisture/Bend Resistance: Gel-filled or dry core options to prevent water ingress and maintain flexibility .Color Coding: For easy identification and fiber management in multi-fiber configurations .Fire Resistance: LSZH jackets for indoor applications to enhance safety . These components work together to ensure that armored multimode fiber optic cables can withstand harsh environments, including underground installations, tunnels, and industrial settings, while maintaining high-speed data transmission and long-term reliability .