The GYXTZW central-tube flame-retardant optical cable is designed for reliable optical transmission in communication networks where mechanical protection and flame retardancy are essential. It features a central loose tube containing 250 μm optical fibers, double-sided coated steel tape armor, two parallel steel wires, and a flame-retardant outer sheath. The compact construction provides effective moisture protection, tensile strength, and crush resistance for demanding cable installation environments.
Key Features
- Central Loose Tube Structure: Houses optical fibers in a high-modulus loose tube filled with water-blocking compound, helping protect fibers from mechanical stress and environmental influences.
- Flame-Retardant Outer Sheath: Special sheath material provides flame-retardant properties for communication installations with enhanced fire safety requirements.
- Steel Tape Armor: Double-sided coated steel tape improves moisture resistance and adds mechanical protection to the cable core.
- Reliable Water Blocking: Water-blocking materials help prevent longitudinal water penetration and improve cable durability in outdoor environments.
- Enhanced Tensile Strength: Two parallel steel wires provide additional tensile support during cable installation and operation.
- Good Crush Resistance: The reinforced cable structure helps withstand external mechanical pressure while maintaining optical transmission performance.
- Compact and Lightweight Design: The relatively small cable diameter and practical construction facilitate handling, transportation, and installation.
- Multiple Fiber Configurations: Available with different fiber types and fiber counts to accommodate various communication network requirements.
Product Overview
The GYXTZW central-tube flame-retardant optical cable combines optical transmission performance with a mechanically reinforced structure. It is suitable for communication infrastructure requiring a balance of fiber protection, moisture resistance, tensile strength, and flame-retardant characteristics.
The optical fibers are housed in a high-modulus loose tube filled with specialized water-blocking compound. This structure allows the fibers to remain protected within the cable core while accommodating temperature variations and reducing the effects of external mechanical stress. Water-blocking material between the loose tube and the double-sided coated steel tape further helps prevent longitudinal water penetration.
The steel tape armor enhances the cable's resistance to moisture and external pressure, while two parallel steel wires provide additional tensile strength. A specially formulated flame-retardant outer sheath completes the cable structure, making it suitable for installations where flame-retardant cable materials are required.
With its compact construction, flexible handling characteristics, and multiple fiber-count options, this cable can be configured for different communication network designs. The GYXTZW series offers a practical solution for projects that require dependable optical transmission alongside enhanced mechanical and flame-retardant protection.
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 | — | — |
Additional Optical Parameters
| Fiber Type | Bandwidth at 850 nm | Bandwidth at 1300 nm | Numerical Aperture | Cable Cut-Off Wavelength |
| G.652 | — | — | — | ≤1260 nm |
| G.655 | — | — | — | ≤1450 nm |
| 50/125 μm | ≥500 MHz·km | ≥500 MHz·km | 0.200 ± 0.015 | — |
| 62.5/125 μm | ≥200 MHz·km | ≥500 MHz·km | 0.275 ± 0.015 | — |
Cable Mechanical Parameters
| Parameter | Specification |
| Cable Model | GYXTZW |
| Fiber Count | 2–24 fibers, in increments of 2 |
| Reference Cable Weight (2–12 Fibers) | 152 kg/km or 172 kg/km, depending on configuration |
| Reference Cable Weight (14–24 Fibers) | 192 kg/km or 215 kg/km, depending on configuration |
| Allowable Tensile Load, Long-Term / Short-Term | 600/1500 N or 1000/3000 N, depending on configuration |
| Allowable Crush Load, Long-Term / Short-Term | 300/1000 N per 100 mm |
| Bend Radius, Static / Dynamic | 10D / 20D |
| Armor | Double-sided coated steel tape (PSP) |
| Strength Members | Two parallel steel wires |
| Outer Sheath | Flame-retardant sheath material |
Note: Technical specifications may vary according to the selected cable configuration. Please confirm the required fiber type, fiber count, sheath properties, and mechanical performance before ordering.
Applications
- Telecommunication backbone and access networks
- Outdoor fiber optic communication infrastructure
- Communication facilities requiring flame-retardant cable materials
- Fiber optic links between network equipment and distribution points
- Projects requiring moisture resistance and mechanical reinforcement
- Communication cabling installations with specific tensile and crush resistance requirements
Customized Fiber Optic Cable Solutions
Different communication projects have different requirements for fiber count, optical performance, mechanical protection, and sheath materials. Cable configurations can be selected according to the installation environment and network design. For detailed specifications, availability, and project requirements, please contact our team for technical assistance.
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