Optical transmission hardware integration one-stop service provider
Views: 0 Author: Tina Publish Time: 2026-09-30 Origin: Site
When building reliable outdoor campus backbones, municipal telecommunication rings, and long-haul distribution networks, engineers and procurement specialists must select optical cables capable of withstanding moisture intrusion, mechanical stress, and fluctuating weather. Choosing a high-performance GYTA fiber cable ensures your transmission infrastructure delivers low attenuation, superior moisture barrier protection, and long operational lifespans across both underground conduit and aerial routes.
A GYTA fiber cable is a standardized outdoor stranded loose-tube optical cable designed specifically for duct and aerial communication routes. Its multi-layer engineering ensures superior optical transmission and physical longevity in harsh outdoor environments.
At the core of the cable sits a solid metallic central strength member (CSM), typically manufactured from high-tensile phosphated steel wire. High-modulus polybutylene terephthalate (PBT) loose tubes—housing color-coded ITU-T G.652.D single-mode fibers (or 50/125µm & 62.5/125µm multimode fibers)—are stranded symmetrically around the central strength member using SZ reverse oscillation stranding technology.
To eliminate longitudinal water penetration, both the interior of the loose tubes and the interstitial cable core gaps are thoroughly injected with thixotropic water-blocking filling compound (jelly).
Surrounding the stranded cable core is an Aluminum Polyethylene Laminate (APL) tape applied longitudinally with an overlap. This specialized aluminum tape serves as an impermeable barrier against moisture, humidity, and chemical vapors, while maintaining a lighter profile than heavy steel tape.
The entire assembly is extruded with a high-grade, black UV-resistant Polyethylene (PE) outer sheath, providing exceptional weatherproofing, abrasion resistance, and smooth pulling characteristics.
When reviewing engineering datasheets for a 2–60 core configuration, ensure the cable meets all international mechanical and optical criteria according to IEC 60794-1-2 mechanical and environmental testing standards:
Single-Mode Fiber (9/125µm G.652D): Attenuation ≤0.40 dB/km≤0.40 dB/km at 1310 nm1310 nm and ≤0.30 dB/km≤0.30 dB/km at 1550 nm1550 nm.
Multimode Fiber Options: 50/125µm (≥400 MHz⋅km≥400 MHz⋅km at 850nm850nm) or 62.5/125µm (≥160 MHz⋅km≥160 MHz⋅km at 850nm850nm) for legacy campus backbones.
Core Capacity Range: Standard 2 to 60 cores (scalable up to 144 cores upon request).
Short-Term Tensile Strength: 1500 N1500 N (rated for maximum dynamic pulling load during installation).
Long-Term Tensile Strength: 600 N600 N (rated for continuous operational tension).
Crush Resistance: 1000 N/100mm1000 N/100mm (short-term) and 300 N/100mm300 N/100mm (long-term lateral compression).
Dynamic Bending Radius: 224 mm224 mm (20D20D, during installation pull).
Static Bending Radius: 112 mm112 mm (10D10D, post-installation fixed routing).
Operating & Storage Temperature: Reliable performance across an ultra-wide temperature window from −40℃−40℃ to +70℃+70℃.
Physical Weight & Dimension: Nominal outer diameter of approximately 11.2 mm11.2 mm with a lightweight footprint of 100 kg/km100 kg/km.
A high-quality GYTA fiber cable offers versatile deployment capabilities across two primary civil engineering scenarios:
In underground municipal networks, cables frequently encounter high humidity, ground moisture, and standing water inside conduit vaults. The longitudinal APL aluminum barrier completely blocks moisture permeation, preventing fiber hydrogen darkening and micro-bending attenuation over decades.
Its circular cross-section and smooth PE jacket minimize pulling friction when feeding the cable through PVC, PE, or HDPE sub-ducts into outdoor Fiber Optic Splice Closures (FOSC) and central office .
Because aluminum laminate is significantly lighter than corrugated steel armor, GYTA cables place substantially lower structural load on utility poles and cross-arms. When lashed to a galvanized steel messenger wire using cable lashing machines, the cable maintains a low sag profile and resists wind vortex vibrations, making it an economical choice for long suburban spans.
To help network planners select the exact cable design for their project, the table below highlights the architectural differences:
Specification Parameter | GYTA Cable | GYTS Cable | GYXTW Cable |
|---|---|---|---|
Armor / Barrier Material | APL Aluminum Tape (Moisture-proof) | PSP Corrugated Steel Tape (Crush & Rodent-proof) | PSP Corrugated Steel Tape + 2 Steel Wires |
Core Architecture | Multi-tube Stranded (SZ) | Multi-tube Stranded (SZ) | Central Uni-tube |
Standard Core Range | 2 – 60 Cores (up to 144C) | 2 – 60 Cores (up to 144C) | 2 – 24 Cores |
Cable Weight | ≈100 kg/km≈100 kg/km (Lightweight) | ≈110 kg/km≈110 kg/km (Medium) | ≈85 kg/km≈85 kg/km (Compact) |
Crush Rating (Short-Term) | 1000 N/100mm1000 N/100mm | 1500 N/100mm1500 N/100mm | 1000 N/100mm1000 N/100mm |
Recommended Deployment | Underground Ducts & Aerial Lashing | Direct Buried, Ducts, Heavy Aerial | Short Aerial & Duct Distribution |
Selecting the best GYTA fiber cable depends on balancing core counts, environmental moisture exposure, and deployment methods. If your infrastructure involves humid underground ducts or pole-mounted aerial lashing, GYTA’s aluminum barrier, robust central strength member, and low attenuation guarantee long-term network reliability at a competitive cost.
