The all-optical network of an industrial park uses three outdoor optical cables — GYTA, GYFTA and GYTY53 — as its communication foundation, covering factories, office buildings, warehouses and security points, and carrying industrial IoT, HD surveillance, smart manufacturing and cloud office services. GYTA features metallic reinforcement, suiting duct installation within the park with moisture resistance and stability; GYFTA has an all-dielectric FRP core that resists electromagnetic interference, suitable for substation and heavy-industry workshop areas; GYTY53 is steel-tape armored for compression and rodent resistance, used in direct-buried road sections. The three cables are deployed in layers, with water blocking, weather resistance and low transmission loss, stably supporting 10G-class long-distance data transmission. Adapted to the complex construction environment of parks, they reduce O&M costs and provide highly reliable optical fiber transmission links for the digitalization of smart factories.