The center-east tubular glass fiber armored indoor/outdoor universal optical cable adopts a loose tube design, with colored optical fiber cores placed inside the loose tubes. The outer layer is wrapped with water-blocking yarn, reinforced with glass fiber, and extruded with an LS0H flame-retardant outer sheath. It combines the flame-retardant performance of indoor cables with the water-blocking capability of outdoor cables, meeting the basic requirements for both indoor and outdoor use. By selecting high-quality optical fibers, using specialized equipment, and employing reasonable process design, the product's performance exceeds the requirements of standards such as ISO/EC 11801 and GB 50311. The product features high-quality performance, with performance metrics exceeding the requirements of standards such as ANSI/TIA 568.3-D, IEC 60794, and YD/T 1770; the optical fiber characteristics meet and exceed the requirements of standards such as ITU-T G.561, ITU-T G.652.D, and IEC 60793.