GYTA53 outdoor fiber optic cable, is also called double armored and double sheathed multi loose tube aluminum polyethylene laminated tape external cable, is consisted of 250um fibers held in oil filled PBT loose tubes wrapped around a phosphatized steel wire central strength member. 24 Core Fiber Optic Cable GYTY53 Outdoor Armored Double Jacket Waterproof Gel Filled loose tube direct burialGYTY53 fiber optic cable is the type of fiber optic cable used to transmit data over is long distance. It consists of. The mentioned cable types below do not cover the full selection. Also available in metal-free version (ADSS)! Meets with below standards: Duct version is Hungarian Telecom approved (HIF)! Direct burial for harsh enviroment. To ensure waterproofing, the loose tubes contain a waterproof compound.