Duct Cable – 48F – G657A1 – Singlemode – Per Metre

Duct Cable – 48F – G657A1 – Singlemode – Per Metre

The Duct Cable – 48F – G657A1 – Singlemode – Per Metre is a robust, high-performance loose tube fibre optic cable engineered for duct installations across telecommunications, FTTX and broadband networks. Designed with 48 bend-insensitive G.657A1 single-mode fibres, it delivers exceptional optical performance with low attenuation, making it ideal for high-speed fibre infrastructure and long-distance network deployments.

Its water-blocked loose tube construction combines gel-filled tubes, water-swellable elements and a central FRP strength member to provide excellent protection against moisture ingress and mechanical stresses. The rugged HDPE anti-rodent outer sheath ensures long-term durability in underground duct installations, delivering dependable performance in demanding environments.

Optimised for blowing or pulling into standard duct systems, this 48-fibre cable provides an ideal balance of capacity, flexibility and installation efficiency. Supplied from a 4km OQM drum and sold per metre, it is a reliable solution for telecom operators, broadband providers and infrastructure contractors.

Key Features:

• 48-fibre G.657A1 bend-insensitive single-mode cable

• Loose tube construction for duct installations

• Water-blocked design with gel-filled tubes

• Water-swellable elements prevent moisture ingress

• HDPE anti-rodent outer sheath

• FRP central strength member

• Low-loss optical performance

• Colour-coded fibres for simplified splicing

• Suitable for blowing or pulling into ducts

• Supplied from a 4km OQM drum and sold per metre

Technical Specifications:

• Product Type: Loose Tube Duct Fibre Optic Cable

• Fibre Count: 48F

• Fibre Type: ITU-T G.657A1 Singlemode

• Cable Diameter: 8.5 ±0.5mm

• Outer Sheath: 1.1mm HDPE (Black)

• Sheath Protection: Anti-Rodent

• Central Strength Member: FRP Rod

• Cable Weight: 55 ±10kg/km

• Tensile Strength: 2000N (IEC 60794-1-21-E1)

• Crush Resistance: 2000N/100mm (IEC 60794-1-21-E3)

• Impact Resistance: 10Nm (IEC 60794-1-21-E4)

• Minimum Bend Radius: 20 × Cable Diameter

• Water Penetration: 1m Water Head, 3m Sample, 24 Hours

• Operating Temperature: -10°C to +85°C

• Storage Temperature: -10°C to +85°C

• Optical Attenuation:

  • ≤0.40dB/km @1270nm

  • ≤0.35dB/km @1310nm

  • ≤0.35dB/km @1383nm

  • ≤0.24dB/km @1490nm

  • ≤0.21dB/km @1550nm

  • ≤0.24dB/km @1625nm

• Drum Length: 4km OQM

• Sold Per: Metre

Applications:

• FTTH deployments

• FTTX access networks

• Telecommunications infrastructure

• Broadband network roll-outs

• Underground duct installations

• Metro fibre networks

• Campus fibre infrastructure

• Data centre backbone connections

• Feeder fibre routes

• Utility communications networks