GYDTA optical cable is an outdoor fiber ribbon cable for communication applications, featuring metal strength members, loose tube stranded filled construction, and an aluminum‑polyethylene bonded sheath. It incorporates a full‑section water‑blocking structure to ensure reliable optical signal transmission. The basic structure of the cable generally consists of a cable core, reinforcing steel wires, filling compounds, and a sheath, with an additional outer sheath used in some configurations.