Telenco Duct Cable G657A1 SM 48F (OQM 4km) – per metre
The Telenco Single-Mode (SM) Duct Cable 48F is a robust, high-performance loose-tube fibre optic cable engineered for duct installations in telecom, FTTX, and broadband networks. Featuring bend-insensitive G.657A1 fibres, water-blocked construction, and a rugged HDPE outer sheath, this cable ensures low signal attenuation, excellent mechanical protection, and long-lasting reliability even under challenging environmental conditions.
Designed for mid-capacity fibre applications, the 48-fibre configuration delivers an optimal balance between flexibility, performance, and durability. Its central strength member and gel-filled tubes guarantee stable performance during installation and operation, making it a trusted choice for telecom operators, network contractors, and data infrastructure providers.
Key Features:
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High-Performance Fibre Cable – 48 fibres for small to mid-scale network builds and fibre distribution.
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Low-Loss G.657A1 Single-Mode Fibre – Ensures superior optical transmission and minimal attenuation.
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Water-Blocked Loose Tube Design – Gel filling and water-swellable elements prevent moisture ingress.
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Durable HDPE Outer Sheath – Anti-rodent, UV-resistant, and suitable for duct and underground use.
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Central Strength Member (FRP) – Provides excellent tensile strength and cable stability.
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Colour-Coded Fibres – Simplifies identification and splicing during installation.
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Optimised for Duct Deployment – Ideal for blowing or pulling into standard conduit systems.
Technical Specifications:
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Fibre Type: G.657A1 (bend-insensitive, low-loss single-mode fibre)
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Fibre Count: 48F
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Cable Diameter: 8.5 ± 0.5 mm
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Outer Sheath: 1.1 mm (nominal) HDPE, black, anti-rodent
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Central Strength Member: FRP rod
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Cable Weight: 55 ± 10 kg/km
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Tensile Strength: 2000 N (IEC 60794-1-21-E1)
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Crush Resistance: 2000 N/100 mm (IEC 60794-1-21-E3)
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Impact Strength: 10 Nm (IEC 60794-1-21-E4)
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Minimum Bending Radius: 20 × D (IEC 60794-1-21-E11)
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Water Penetration: 1 m water head, 3 m sample, 24 h (IEC 60794-1-21-F5)
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Operating Temperature: −10 °C to +85 °C
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Storage Temperature: −10 °C to +85 °C
Optical Attenuation:
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1270 nm: ≤ 0.40 dB/km
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1310 nm: ≤ 0.35 dB/km
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1383 nm: ≤ 0.35 dB/km
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1490 nm: ≤ 0.24 dB/km
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1550 nm: ≤ 0.21 dB/km
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1625 nm: ≤ 0.24 dB/km
Ideal for:
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FTTH and FTTX access networks
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Telecom and broadband infrastructure roll-outs
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Data centre backbone and feeder connections
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Ducted and underground fibre routes
