SM Duct Cable G657A1 144F

The Telenco SM Duct Cable (144F) is a high-performance loose tube fibre optic cable designed for duct installations in telecom and broadband networks. Featuring bend-resistant G.657A1 fibres, water-blocked loose tubes, and a rugged HDPE outer sheath, this cable ensures ultra-low attenuation, high mechanical strength, and long-term reliability in harsh environments.

Key Features:

• High-Performance Fibre Optic Cable – Supports 144 fibres for various telecom applications.
• Ultra-Low Attenuation – G.657A1 single-mode fibre ensures minimal signal loss and superior network performance.
• Water-Blocked Protection – Gel-filled loose tubes and water-swellable yarn prevent moisture ingress for enhanced durability.
• Robust HDPE Sheath – Offers exceptional mechanical strength and anti-rodent protection for long-term performance.
• Central Strength Member – FRP rod reinforcement improves tensile strength and cable integrity.
• Optimised for Duct Installation – Supports traditional pulling installation techniques for easy deployment.
• Colour-Coded Fibres – Simplifies fibre preparation and identification during splicing and termination.

Technical Specifications:

• Fibre Type: G.657A1 (bend-resistant, low-loss single-mode fibre)
• Fibre Count: 144F
• Cable Diameter:
  • 8.5 ± 0.5mm (12-48FO)
  • 10.0 ± 0.5mm (72-96FO)
  • 13.0 ± 0.5mm (144FO)
  • 15.0 ± 0.5mm (288FO)
• Outer Sheath: 1.1mm (nominal) HDPE, black, anti-rodent
• Central Strength Member: FRP rod
• Cable Weight:
  • 55 ± 10kg/km (12-48FO)
  • 80 ± 10kg/km (72-96FO)
  • 130 ± 15kg/km (144FO)
  • 170 ± 15kg/km (288FO)
• Tensile Strength: 2000N (IEC-60794-1-21-E1)
• Crush Resistance: 2000N/100mm (IEC-60794-1-21-E3)
• Impact Strength: 10Nm (IEC-60794-1-21-E4)
• Minimum Bending Radius: 20 x D (IEC-60794-1-21-E11)
• Water Penetration: 1m water head, 3m sample, 24 hours (IEC-60794-1-21-F5)
• Operating Temperature: -10°C to +85°C
• Storage Temperature: -10°C to +85°C
• Optical Attenuation:
  • 1270nm: ≤ 0.40dB/km
  • 1310nm: ≤ 0.35dB/km
  • 1383nm: ≤ 0.35dB/km
  • 1490nm: ≤ 0.24dB/km
  • 1550nm: ≤ 0.21dB/km
  • 1625nm: ≤ 0.24dB/km

Ideal for:

• FTTH (Fibre-to-the-Home) and FTTX network deployments
• Telecom and broadband providers
• Data centre interconnects