For global telecom contractors, network operators and fiber cable distributors, selecting the correct outdoor optical cable directly determines project cost, installation efficiency and long-term network stability. ADSS, ASU, GYXTW and GYFXTY are the most widely used outdoor cables for FTTH, power communication, aerial and pipeline projects worldwide.

Most overseas buyers confuse their structural and application differences, resulting in improper selection and budget waste. This guide briefly introduces their core features, advantages and applicable scenarios, helping you quickly confirm the right model for your project.

1. ADSS Cable (All-Dielectric Self-Supporting)

Core Features: Fully dielectric metal-free structure with high-strength aramid yarn tension members and anti-tracking AT/PE sheath. It supports ultra-long-span aerial installation and adapts to high-voltage power environments with a 30+ year service life.

Key Advantages: No power-cut required during installation, excellent lightning and electromagnetic interference resistance, strong wind and ice resistance, and no need for tower reinforcement.

Best Scenarios & Tips: Ideal for high-voltage power grid communication, mountain crossing and long-span overhead backbone projects. It is a high-cost, high-performance professional cable, not suitable for short-distance conventional wiring.

2. ASU Cable (Lightweight All-Dielectric Self-Supporting)

Core Features: A lightweight, cost-effective simplified version of ADSS, with an all-dielectric single-tube structure and high-strength non-metallic tension yarn. It retains self-supporting and anti-interference properties with lighter weight and better flexibility.

Key Advantages: Easy and fast to install, low labor cost, excellent UV and low-temperature resistance, and high cost performance.

Best Scenarios & Tips: Perfect for short and medium-span overhead FTTH access, rural fiber coverage and community network renovation. It is the best budget alternative to ADSS for common aerial projects.

3. GYXTW Cable (Steel Wire Armored Central Tube Cable)

Core Features: Classic metal-armored outdoor cable with central loose tube structure, full waterproof grease filling, steel strip armor and double steel wire tension members. It balances tension, compression and waterproof performance.

Key Advantages: Strong mechanical protection against extrusion, impact and minor animal bites, wide temperature adaptability (-40℃ to +70℃), and supports overhead, pipeline and shallow burial laying.

Best Scenarios & Tips: Widely used in urban pipeline communication, monitoring wiring and small-core (4-24 core) outdoor trunk lines. With mature technology and stable prices, it is the most cost-effective universal cable for conventional civil projects.

4. GYFXTY Cable (Fully Non-Metallic Flexible Cable)

Core Features: 100% metal-free outdoor cable with non-metallic tension members and flame-retardant sheath. It features outstanding anti-electromagnetic interference, lightning protection and flame retardancy.

Key Advantages: Free from lightning induction and signal interference, corrosion and rodent resistant, flame-safe and flexible for complex laying environments.

Best Scenarios & Tips: Designed for special high-risk environments, including substations, petrochemical parks, mines and strong electromagnetic interference areas. It focuses on safety rather than mechanical compression resistance, unnecessary for ordinary urban wiring.

Cable Selection Comparison Table

Final Buying Guide

Choose ADSS for professional power communication and ultra-long-span aerial projects.

Choose ASU for budget-friendly FTTH overhead access.

Pick GYXTW for standard urban outdoor and pipeline projects.

Select GYFXTY for industrial, flammable and strong electromagnetic interference environments.

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