- Product Detail
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■Product Overview
GYXTW is an outdoor fiber optic cable designed for duct/conduit installation and commonly used in access and distribution networks. It uses a central (uni) loose tube filled with water-resistant compound, combined with a longitudinal steel tape layer (PSP) and two parallel steel wires to provide mechanical protection and pulling strength, finished with a UV-resistant PE/HDPE outer sheath.
Typical fiber count range: 2–24 cores (other counts may be available by design).
■Applications
Outdoor duct / conduit routes (metro/access rings, feeder/distribution)
Aerial (lashed) installation when permitted by project design
Campus networks, ISP builds, CCTV backhaul, industrial communication links (project-dependent)
■Cable Construction
Typical structure (from center outward):
1.Optical fibers (250 μm) placed in a PBT central loose tube, tube filled with water-resistant compound
2.Water-blocking layer (e.g., water-blocking tape/material) applied to maintain compactness and longitudinal water blocking
3.PSP steel tape applied longitudinally around the tube (steel tape moisture/impact/crush protection)
4.Two parallel steel wires placed on both sides as strength members
5.Outer sheath: black PE/HDPE, UV-resistant for outdoor use
■Fiber Options
Common options depend on project requirement:
Single-mode: ITU-T G.652.D (typical)
Multimode: 50/125 μm, 62.5/125 μm (optional by order)
■Fiber Color Identification
Typical 12-fiber color sequence:
Blue, Orange, Green, Brown, Gray, White, Red, Black, Yellow, Violet, Pink, Aqua■Mechanical & Environmental Performance (Typical)
1.Bending Radius:
Static (no tension): ≥ 10 × cable OD
Dynamic (under tension): ≥ 20 × cable OD
2.Tensile / Crush (Common grades):
Different suppliers provide two common mechanical “grades” depending on sheath thickness and design:
Grade A (standard): Tensile 600/1500 N (long/short)
Grade B (reinforced option): Tensile 1000/3000 N (long/short)
Crush resistance is commonly specified as either:
300/1000 N/100 mm (long/short) in some specifications
1000/3000 N/100 mm (long/short) for reinforced designs
3.Temperature Range (Typical):
Operation: -40 °C to +70 °C
Storage/transport: -40 °C to +70 °C
Installation: commonly -10 °C to +70 °C (varies by spec)
■Typical Dimensional Data (Reference)
Values below are typical for common GYXTW designs; final OD/weight depends on tube diameter, sheath thickness, and mechanical grade.
Common designs (2–12 cores and 2–24 cores):
Fiber Count Sheath Thickness (mm) Cable OD (mm) Approx. Weight (kg/km) 2–12 2.6 10.2 105 2–12 3.0 11.0 132 2–24 2.6 12.2 142 2–24 3.0 13.0 170 Some market versions for 2–12 cores may show smaller OD/weight (e.g., ~8.0–8.9 mm class) depending on design choices.
■Optical Characteristics (Single-Mode G.652.D — Typical Limits)
1.Attenuation coefficient (max):
1310 nm: ≤ 0.36 dB/km
1383 nm: ≤ 0.32 dB/km
1550 nm: ≤ 0.22 dB/km
1625 nm: ≤ 0.30 dB/km
2.Chromatic dispersion (max):
1550 nm: ≤ 18 ps/(nm·km)
1625 nm: ≤ 22 ps/(nm·km)
Cable cut-off wavelength: ≤ 1260 nm
■Standards & Test References
Many GYXTW specifications reference IEC 60794-series test methods and related requirements; some suppliers also cite IEEE 1222 for outdoor cable design requirements.
Typical mechanical/environmental tests include:
Tensile test: IEC 60794-1-2-E1 (loss change and no damage criteria)
Crush test: IEC 60794-1-2-E3
Impact test: IEC 60794-1-2-E4
Temperature cycling: commonly per YD/T series in some specs
■Sheath Marking & Length Marking
Sequential length marking is typically printed at ~1 m intervals, with length accuracy commonly controlled within ±1%, and marking content including manufacturer name, cable type, production date, and meter marking.
■Packaging, Storage, Handling
Standard supply is on wooden drums; drum length options vary by design and logistics.
Store drums upright in a dry area; keep ends sealed until installation.
During installation, control pulling tension and maintain the specified bending radius.
GYXTW Duct Fiber Optic Cable – Unitube Design, Steel Tape Protection, Dual Steel Wire Strength Members, PE/HDPE Jacket
GYXTW is an outdoor fiber optic cable designed for duct/conduit installation and commonly used in access and distribution networks. It uses a central (uni) loose tube filled with water-resistant compound, combined with a longitudinal steel tape layer (PSP) and two parallel steel wires to provide mechanical protection and pulling strength, finished with a UV-resistant PE/HDPE outer sheath. Typical fiber count range: 2–24 cores (other counts may be available by 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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