Gyxtw-4b1 4-core optical fiber cable is a type of outdoor single-mode optical fiber. it adopts a central bundle tube structure design and has 4 built-in standard g. it is suitable for long-distance, high-bandwidth optical signal transmission. Featuring light armor protection and 4 single-mode fibers, this cable ensures excellent durability and. Kaitron Loose sleeve stranded non-metallic flame retardant fiber optic cable GYFTZY-4B1 is a high-performance, lightweight, and safe optical solution ideal for indoor-outdoor network installations. The tubes are filled with a water-resistant filling compound. A steel wire, sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a metallic strength member. A PSP layer is wrapped longitudinally around the tube, while water-blocking materials fill the gaps to ensure compact structure and reliable water. GYXTW is designed specifically for outdoor use, featuring a central strength member and supporting up to 24 fiber bundles, making it suitable for various applications, from telecommunications to security systems.