GYXTS is a steel-reinforced, polyethylene-sheathed outdoor fiber optic cable designed for duct and conduit installations, offering high tensile strength, moisture protection, and durability in harsh environments.

Structure and Design

GYXTS cables feature a central loose tube that houses single-mode or multi-mode optical fibers, typically filled with a water-resistant compound to protect the fibers from moisture and mechanical stress . Surrounding the central tube are steel wire reinforcements and corrugated steel tape armor, providing high tensile strength and resistance to crushing, rodents, and other environmental hazards . The entire assembly is encased in a polyethylene (PE) outer sheath, which ensures weather resistance and durability for outdoor applications .

Fiber and Performance

The cable supports a variety of fiber types, including G652D, G655C, G657A1, G657A2, and multimode options like OM3 and OM4, with fiber counts typically ranging from 1 to 12 fibers . The loose tube design allows for thermal expansion and contraction without stressing the fibers, maintaining signal integrity over long distances . The cable operates reliably in temperatures from -40℃ to +70℃ and is suitable for both storage and active deployment .

Applications

GYXTS cables are ideal for long-distance telecommunications, FTTH (Fiber to the Home), building interconnections, and service drops. They are designed for installation in ducts, conduits, and aerial setups, providing protection against mechanical damage, moisture ingress, and rodent attacks . The steel-reinforced structure makes them particularly suitable for areas with harsh environmental conditions or where additional mechanical protection is required.

Standards and Installation

These cables comply with standards such as YD/T 769-2010, ensuring quality and performance consistency . Before installation, ducts should be cleaned and tested, and the inner diameter of the conduit should be at least 1.5 times the cable diameter to facilitate smooth laying . The loose tube is filled with a special grease to provide additional protection for the optical fibers during installation and operation . GYXTS cables combine mechanical robustness, environmental resistance, and high fiber density, making them a reliable choice for outdoor fiber optic networks in both urban and rural deployments .