ADSS [non-metallic reinforcing member, loose layer stranded filling type, polyethylene inner sheath, aramid yarn armor, polyethylene sheathed outdoor optical cable for communication] The structure of the optical cable is to insert single-mode or multi-mode optical fiber into a high-modulus optical fiber. In the loose tube made of plastic and filled with waterproof compound, the center of the cable core is a non-metallic reinforcing member. For optical cables with certain core numbers, the non-metallic central reinforcing member is extruded with a layer of polyethylene. The loose tube (and filler rope) is twisted around the central strength member to form a compact and rounded core, and the gap in the core is filled with a water-blocking compound and extruded with a polyethylene inner sheath. The aramid yarn is armored and extruded into a polyethylene outer sheath to form a cable.