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    CT2242 Outdoor Single Mode Armoured Trackside Optical Fiber Cables

    Application

    The cables are designed for long distance telecom links on optical fi bres along railway tracks. The cables are suitable for installation directly in channels or buried.

    Reference Standards

    • SNCF CT 2242.6.1

    Cable Construction


    Fibres: Singlemode optical fibres G652 coloured (6 or 12 per tube).CT2328 Type (Main Cables)

    • Central Strength Member: Non-metallic central reinforcement (FRP).
    • Tube: PBT polyester tubes containingfibres.
    • Filling: Petroleum jelly with water-swelling yarns to provide longitudinal watertightness.
    • Inner Sheath: Low density polyethylene.
    • Armour: 0.25mm thick corrugated steel tape armour.
    • Outer Sheath: Low density polyethylene.

    Electrical Characteristics at 20℃

    Maximum Attenuation   G652
    @1310nm dB/km 0.35
    @1550nm dB/km 0.22
    Maximum Chromatic Dispersion    
    Between 1260 and 1360nm ps/(nm/km) 3.5
    Between 1530 and 1565nm ps/(nm/km) 19
    Zero Dispersion Wavelength nm 1310±11
    Zero Dispersion Slope ps/(nm2.km) 0.09
    Numerical Aperture   0.14
    Point discontinuity dB 0.1
    PMD (individual fi ber) ps/km 0.2
    Maximum Cutoff Wavelength nm 1260
    Cladding Diameter um 125±1
    Core/Cladding Concentricity Error um ≤0.5
    Cladding Non Circularity % ≤1
    Coating Non Circularity % ≤6
    Proof Test Level Kpsi (GN/m2) 100 (0.7)
    Crush Resistance N/cm 450
    Maximum Laying Tension N 3000

    Mechanical and Thermal Properties

    • Minimum Bending Radius: 310mm..
    • Temperature Range: -40℃ to +70℃ (during operation); -10℃ +70℃ (during installation)

    Dimensions and Weight

    Cable Code No. of fibres Nominal Sheath
    Thickness
    mm    		 Nominal Overall
    Diameter
    mm    		 Nominal Weight
    kg/km
    RO2242-ML-C-9-Tn×Fn-SR-2Y(STA)2Y 1-36 1.5 14.5 260
    RO2242-ML-C-9-Tn×Fn-SR-2Y(STA)2Y 48-72 1.5 16.5 300
    RO2242-ML-C-9-Tn×Fn-SR-2Y(STA)2Y 80-144 1.5 22.0 510
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