Enhanced Performance Fiber Unit (EPFU) Air Blown Fiber Cable

The Enhanced Performance Fiber Unit (EPFU) is a miniature optical fiber cable developed for air-blown installation into microducts using compressed air. It is ideal for access networks where scalability, speed of deployment, and minimal civil work are essential. With a high strength-to-weight ratio and ultra-low friction jacket, EPFU enables long blowing distances and efficient fiber network expansion.

1. Structure & Design

• Fiber Type:

  • Available in G.657.A1, G.657.A2, or G.652.D single-mode fibers

  • Typical core counts: 2, 4, 6, 8, 12 cores

• Buffer Layer:

  • Each fiber is protected with tight or dry loose buffer to resist micro-bending and maintain optical performance

• Outer Sheath:

  • Made of ultra-low friction TPU or LSZH material, optimized for blowing performance

  • Highly resistant to abrasion, kinking, and environmental factors

• Diameter:

  • Ultra-small size, typically 1.2 mm to 2.4 mm, depending on core count

  • Designed for installation into 3 mm to 5 mm inner diameter microducts

• Color Coding:

  • Complies with IEC 60304 or customer-specific coding

• Weight:

  • Extremely lightweight, typically <10 kg/km

2. Applications

• FTTH (Fiber to the Home)

• FTTB / FTTO (Building or Office)

• 5G small cell backhaul

• Data center interconnect

• Access and campus networks using microduct infrastructure

• Greenfield or brownfield urban deployments

3. Advantages

• Blowing distance up to 1000 meters or more in a single shot

• Quick and cost-effective installation without trenching or heavy equipment

• Easily scalable: new fibers can be blown in later as needed

• Ultra-low friction sheath enhances blowing performance even in curved ducts

• Resistant to temperature extremes, moisture, and mechanical stress

• Ideal for high-density fiber networks with minimal footprint

4. FAQs

• Q1: What microduct sizes are compatible with EPFU cables?
  Typically 3–5 mm inner diameter ducts. We can match cable size to your existing duct system.
• Q2: Can the cable be blown over long distances?
  Yes, depending on duct condition and blower equipment, blowing distances can exceed 1000–1500 meters per shot.
• Q3: Is this cable suitable for outdoor environments?
  Yes. The TPU or LSZH sheath is UV-resistant and can withstand temperature and moisture variations.
• Q4: Can I use this cable for existing ducts with tight bends?
  Yes. EPFU is engineered for high flexibility and can navigate tight bends with low friction loss.

• Q5: What’s the difference between EPFU and traditional micro cables?
  EPFU is smaller, lighter, and optimized for air-blown installation, whereas traditional micro cables are usually pulled and have higher installation force requirements.