Optical cable steel wire is the "invisible guard" that ensures the stable transmission of communication optical cables. It is mainly used as the reinforcing core of optical cables to provide mechanical support and protection for fragile optical fibers. Prysmian Group Direct buried cables Draka Steel Wire Armoured Central Tube Optical Cable Cable Design Fibre Identification: Every fibre in a tube is uniquely identified by a different colour. In fields such as 5G networks, data centers. Suitable for installation in buildings and tunnel backbones where zero halogen, flame retardance and low smoke emission are required as well as where there is rodent presence. 1 FIBER OPTIC CABLE Fiber Optic Cable © 2002, AFL, all rights reserved.