

Description
The fibers, 250μm, are positioned in aloose tube made of a high modulusplastic. The tubes are filled with a waterresistant filling compound. A FiberReinforced Plastic (FRP) locates in thecenter of core as a non-metallic strengthmember. The tubes (and fillers) arestranded around the strength memberinto a compact and circular core. Thenthe cable core is covered with a thinpolyethylene (PE) inner sheath, which isfilled with jelly to protect it from wateringress. A layer of water-blocking materialis applied around the cable core toprevent water ingress all the same. After acorrugated steel tape armor is applied.the cable is completed with a PE outersheath.
Optical Characteristics
| G.652 | G.655 | 50/125μm | 62.5/125μm | ||
| Attenuation (+20℃) | @850nm | ≤3.0dB/km | ≤3.0dB/km | ||
| @1300nm | ≤1.0dB/km | ≤1.0dB/km | |||
| @1310nm | ≤0.36dB/km | ≤0.40dB/km | |||
| @1550nm | ≤0.22dB/km | ≤0.23dB/km | |||
| Bandwidth (Class A) | @850 | ≥500MHZ·km | ≥200MHZ·km | ||
| @1300 | ≥1000MHZ·km | ≥600MHZ·km | |||
| Numerical Aperture | 0.200±0.015NA | 0.275±0.015NA | |||
| Cable Cut-off Wavelength λcc | ≤1260nm | ≤1450nm | |||
Storage/Operating Temperature : -40℃ to + 70℃
FAQ
Q1: What is the layer construction and main application of the GYFTY53 Outdoor Fiber Cable?
A: The GYFTY53 is a double-sheathed, corrugated steel tape-armored outdoor optical fiber cable. It houses 250μm fibers inside jelly-filled loose tubes stranded around a central non-metallic FRP (Fiber Reinforced Plastic) strength member, protected by a PE inner sheath, water-blocking material, corrugated steel tape armor, and a PE outer sheath.
Q2: How does the GYFTY53 cable protect against water, moisture, and mechanical crushing?
A: It incorporates a multi-layer protective barrier system:
- Non-metallic FRP central strength member
- Jelly-filled loose tubes and jelly-filled PE inner sheath
- Water-blocking material layer surrounding the core
- Corrugated steel tape armor for enhanced crush resistance and mechanical strength
- Durable PE outer sheath for weather resistance
Q3: What optical fiber types and attenuation ratings are supported?
A: The cable supports G.652 and G.655 single-mode fibers, as well as 50/125μm and 62.5/125μm multimode fibers. Key attenuation ratings include ≤0.36 dB/km at 1310nm (G.652) and ≤0.22 dB/km at 1550nm (G.652).
Q4: What is the operating temperature range for the GYFTY53 cable?
A: The cable maintains reliable performance across a storage and operating temperature range of -40℃ to +70℃.
Q5: Who manufactures the GYFTY53 cable and what is its reference price?
A: Manufactured by FirstFiber Technologies, the GYFTY53 cable has a reference price of $1.7 USD. You can click “Add to Quote” on the product page for bulk pricing or “Request a Demo” for sample inquiries.




