GYFTY53 is a non-metallic reinforced anti-rodent (flame-retardant) optical cable. The optical fibers are placed into PBT loose tubes, which are filled with water-blocking filling compound. At the center of the cable core is a non-metallic strength member, and the gaps are filled with water-blocking filling compound. The loose tubes (and filler rods) are stranded around the central strength member to form a compact, circular cable core. A layer of sheathing material is extruded over the cable core, followed by lamination with steel tape and then extrusion of a polyethylene (flame-retardant) outer sheath.