The GYXS/GYXTW central-tube light-armored optical cable is designed for reliable fiber optic transmission in outdoor communication networks. It features a central loose tube filled with water-blocking compound, double-sided coated steel tape armor, two parallel steel wires, and a polyethylene outer sheath. This compact structure provides moisture protection, mechanical strength, and convenient installation for a wide range of fiber optic cabling applications.
Key Features
- Central Loose Tube Design: Houses 250 μm optical fibers in a high-modulus loose tube for effective fiber protection.
- Water-Blocking Protection: Filling compound and water-blocking materials help prevent longitudinal water penetration.
- Steel Tape Armor: Double-sided coated steel tape improves moisture resistance and enhances mechanical protection.
- Enhanced Tensile Strength: Two parallel steel wires provide additional tensile support during installation and operation.
- Compact and Flexible: Small cable diameter and lightweight construction simplify handling and installation.
- Multiple Fiber Options: Supports single-mode and multimode fiber configurations with different fiber counts to meet project requirements.
Product Overview
The central-tube light-armored optical cable is engineered to provide dependable optical transmission while maintaining a compact and mechanically reinforced structure. It is suitable for outdoor fiber optic networks where moisture resistance, tensile strength, and installation efficiency are important considerations.
The optical fibers are housed in a high-modulus loose tube filled with specialized water-blocking compound. This design helps protect the fibers from environmental influences and mechanical stress while accommodating changes in temperature. Water-blocking materials around the tube and the double-sided coated steel tape further improve the cable's resistance to moisture penetration.
Two parallel steel wires are positioned along the sides of the cable core to provide tensile reinforcement. A polyethylene outer sheath completes the structure, offering an additional protective layer for outdoor deployment.
Available in different fiber types and fiber counts, the GYXS/GYXTW cable can be selected according to transmission requirements, installation conditions, and network design. Its combination of compact construction, moisture protection, and mechanical performance makes it a practical option for telecommunications infrastructure and fiber optic access networks.
Technical Specifications
Optical Fiber Parameters
| Fiber Type | Attenuation at 850 nm | Attenuation at 1300 nm | Attenuation at 1310 nm | Attenuation at 1550 nm |
| G.652 | — | — | ≤0.36 dB/km | ≤0.22 dB/km |
| G.655 | — | — | ≤0.40 dB/km | ≤0.23 dB/km |
| 50/125 μm | ≤3.3 dB/km | ≤1.2 dB/km | — | — |
| 62.5/125 μm | ≤3.5 dB/km | ≤1.2 dB/km | — | — |
Cable Parameters
| Parameter | Specification |
| Cable Model | GYXS/GYXTW |
| Fiber Count | 2–24 fibers |
| Loose Tube | High-modulus material filled with water-blocking compound |
| Armor | Double-sided coated steel tape (PSP) |
| Strength Members | Two parallel steel wires |
| Outer Sheath | Polyethylene (PE) |
| Reference Cable Weight | 82–147 kg/km, depending on configuration |
| Allowable Tensile Load | 600/1500 N or 1000/3000 N, depending on configuration |
| Allowable Crush Load | 300/1000 N/100 mm for the listed configuration |
| Bend Radius | 10D static / 20D dynamic |
Note: Technical values depend on the selected cable configuration. Confirm the applicable fiber count, tensile load, crush resistance, and other specifications when placing an order.
Applications
- Outdoor telecommunications networks
- Fiber optic access and distribution networks
- Interconnection between communication facilities
- Fiber optic infrastructure requiring moisture and mechanical protection
- Network expansion and fiber deployment projects
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