Durable 24-core GYTY53 fiber optic cable for direct burial, featuring steel tape armor, moisture resistance, and low attenuation. 101 describes characteristics, construction and test methods of optical fibre cables for buried application. Note that Recommendation ITU-T L. First, in order to demonstrate sufficient performance of an. Corning's ALTOS Lite FastAccess Technology refers to the combination of a Corning FastAccess Technology jacket with an innovative technology used to bind cable construction through the manufacturing process, eliminating the use of binder yarns and waterblocking tapes and up to a 60 percent. er sheath color is black. Other color can be ap lied in customer request. single mode GYTA53 fiber optic cable and multimode. Capable of manufacturing versatile categories fiber optic cable and its accessories that includes all types of single mode and multimode optical fibers with various design constructions (Indoor, Outdoor DUCT, Direct-Buried, Armored, Areal, Subscriber, Drop, Distribution, Micro etc). The optical fiber elements are typically individually coated with layers and contained in a protective tube suitable for the environment where the cable will be deployed.