- Product Detail
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■Product Overview
GYXTW53 is an outdoor optical fiber cable designed for underground installation, including direct burial where additional mechanical protection is required. It is based on a central loose tube (unitube) structure with water-blocking compound and is typically built with dual steel wire strength members and steel tape armor, finished with a double PE/MDPE sheath (inner + outer) depending on the design.
■Typical Applications
Underground direct buried routes (project-dependent protection class)
Underground duct sections requiring higher mechanical margin than standard duct cable
Non self-supporting aerial installation is listed by some specifications (confirm by project design)
■Cable Construction
Typical structure (center → outside):
1.Optical fibers in a PBT central loose tube, filled with waterproof compound
2.Water-blocking layer (e.g., water-blocking tape/material) applied around the tube for longitudinal water blocking
3.Steel tape layer (Armor 1): longitudinal steel strip/tape applied around the tube (commonly described as PSP / corrugated steel tape depending on design)
4.Two parallel steel wires placed on both sides as strength members
5.Inner sheath (commonly PE)
6.Steel tape layer (Armor 2) applied over inner sheath on some designs (double-tape constructions exist in market specifications)
7.Outer sheath: PE or MDPE (commonly black, UV-resistant)
■Available Fiber Types
Single-mode: ITU-T G.652.D (commonly offered)
Other types (e.g., G.655 / G.657, multimode) may be offered by configuration
■Fiber Identification
Standard 12-color sequence (typical):
Blue, Orange, Green, Brown, Gray, White, Red, Black, Yellow, Violet, Pink, Aqua.■Mechanical & Environmental Performance (Typical)
1.Minimum Bending Radius
Static (no tension): ≥ 10 × cable OD
Dynamic (under maximum tension): ≥ 20 × cable OD
2.Tensile Strength (Long/Short)
A commonly published value set for GYXTW53 is:
1000 N / 3000 N (long / short term)
3.Crush Resistance (Long/Short)
A commonly published value set for GYXTW53 is:
1000 N/100 mm / 3000 N/100 mm (long / short term)
4.Temperature Range
Typical published ranges include:
Storage / Operation: -40°C to +70°C
Installation: examples include -20°C to +60°C (design-dependent)
■Typical Dimensions & Weight (Reference)
The values below are reference values from published designs; OD and weight vary with inner/outer sheath thickness and armor choice.
1.Reference design (2–24 cores)
Outer diameter: about 12 mm
Reference weight: about 165 kg/km
2.Example (manufacturer technical sheet — 2-core / 12-core)
Item 2-core 12-core Cable diameter (mm) 11.9 12.1 Approx. weight (kg/km) 127 134 ■Optical Characteristics (Single-mode G.652.D — Example Limits)
Example limits shown in published technical data for G.652.D include:
Attenuation coefficient
1310 nm: 0.35 dB/km
1383 nm: 0.30 dB/km
1550 nm: 0.21 dB/km
1625 nm: 0.24 dB/km
Cable cut-off wavelength: ≤ 1260 nm
Chromatic dispersion (max)
1550 nm: ≤ 18 ps/(nm·km)
1625 nm: ≤ 22 ps/(nm·km)
■Sheath Marking (Length Marking)
A typical requirement is sequential length marking at ~1 m intervals, starting from 0 m per coil, with length marking accuracy controlled within ±1% (format can be customized).
■Packaging, Storage, Handling
Standard supply is on drums; drum length depends on cable size and shipping requirements.
Keep cable ends sealed during transport and storage.
During installation, do not exceed allowable tensile load and maintain the minimum bending radius.
GYXTW53 Direct Buried Fiber Optic Cable – Central Loose Tube, Steel Tape Armored, Double PE/MDPE Jacket, Dual Steel Wires
GYXTW53 is an outdoor optical fiber cable designed for underground installation, including direct burial where additional mechanical protection is required. It is based on a central loose tube (unitube) structure with water-blocking compound and is typically built with dual steel wire strength members and steel tape armor, finished with a double PE/MDPE sheath (inner + outer) depending on the design.
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FAQ
How can I get a quotation?
Simply send us your inquiry with detailed specifications (product type, quantity, standards). Our sales team will provide a quotation within 24 hours.
Could I visit your factory?
Yes, we welcome and encourage factory visits. It provides an excellent opportunity for clients to gain firsthand insight into our production processes, technical capabilities, and quality control standards.
What payment methods do you accept?
We accept T/T, PayPal, and L/C at sight. Other options may be negotiable depending on the order.
How do you ship the products?
We support multiple shipping options: 1.Express (DHL, FedEx, UPS, TNT) for small orders; 2.Air freight or sea freight for bulk shipments; 3.EXW, FOB, CIF, and DDP terms are available.
What are your main export markets?
Our products are widely used in telecom operators, data centers, ISPs, and system integrators across Asia, Europe, North America, and the Middle East.
Do you provide technical support?
Yes. Our engineering team offers professional technical support, including product selection, network design advice, and troubleshooting assistance.
CONTACT US
Email: bynet@szbynet.com
Phone: +86 19925206282
Shenzhen Headquarter:
No. 45, North Dalang Road, Dalang Street, Longhua District, Shenzhen, Guangdong Province, China
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