Aerial fiber optic cables are an essential component of modern telecommunication and data networks. Designed to be suspended above ground, they are typically mounted on utility poles or other structures, offering a cost-effective and practical solution where underground installations are not feasible. In this guide, we’ll explore the key differences between ADSS (All-Dielectric Self-Supporting) cables and messenger-wired fiber optic cables, and help you determine the best choice for your needs.
What Are Aerial Fiber Optic Cables?
Aerial fiber optic cables are engineered to endure outdoor environmental conditions like wind, rain, ice, and UV exposure. They provide reliable data transmission in urban, suburban, and rural areas. Their robust design ensures long-term performance in challenging conditions, making them a popular choice for service providers worldwide.
ADSS Fiber Optic Cables
ADSS (All-Dielectric Self-Supporting) cables are a specialized type of aerial cable that do not require metallic components for structural support.
Key Features of ADSS Cables
Self-Supporting: Eliminates the need for a separate messenger wire.
Non-Conductive: Ideal for installations near power lines, minimizing electrical interference.
Lightweight Design: Simplifies installation, reducing labor costs.
Resilience: Withstands harsh environmental conditions, including electrical surges and corrosion.
Pole Span Capability: Supports medium to long spans (up to 1 km or more).
Best Applications
- High-voltage power line corridors.
- Remote areas with minimal supporting infrastructure.
- Locations requiring non-conductive materials for safety.
Messenger-Wired Fiber Optic Cables
Messenger-wired cables, often referred to as Figure-8 cables or lashed cables, incorporate a steel or metallic messenger wire for additional support.
Key Features of Messenger-Wired Cables
Metallic Messenger Wire: Provides structural support and durability.
Cost-Effective: Lower initial cable cost, though installation may involve more labor.
Heavy-Duty Performance: Ideal for high-tension applications and longer spans.
Installation Versatility: Can be installed using existing utility poles with proper tensioning.
Best Applications
- Urban and suburban areas with existing infrastructure.
- Long-span installations requiring reinforced support.
- Locations where grounding is not an issue.
