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    ST2513/CT2243 Outdoor Single Mode Unarmoured Trackside Optical Fiber Cables

    Application

    The cables are designed for long distance telecom links on optical fibres along railway tracks. The cables are suitable for pulled through ducts or laid in channels.

    Reference Standards

    • SNCF ST 2513-99

    Cable Construction

    • Electrical Characteristics at 20℃Fibres: Singlemode optical fibres G652 coloured (6 or 12 per tube).
    • Tube: PBT polyester tubes From 12 to 72 OFs: 1 to 6 tubes; 144 OFs: 12 tubes.
    • Central Strength Member: Non-metallic central reinforcement (FRP).
    • Filling: Petroleum jelly + water-swelling yarns.
    • Reinforcement: Water-swelling aramid fi bres.
    • Sheath: PE sheath.
    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 300
    Maximum Laying Tension N From 12 to 72 FO: 2500;144 FO: 3000

    Mechanical and Thermal Properties

    • Minimum Bending Radius: from 12 to 72 FO: 230mm; 144 FO: 340mm.
    • Temperature Range: -30℃ to +60℃ (during operation); -10℃ +60℃ (during installation)

    Dimensions and Weight

    Cable Code No. of fi bres No of Tubes x No
    of Fibers/Tube    		 Nominal Sheath
    Thickness
    mm    		 Nominal Overall
    Diameter
    mm    		 Nominal
    Weight
    kg/km
    RO2513-ML-B-9-1×12-F-2Y 12 1 tubes of 12 OF 1.5 11.6 112
    RO2513-ML-B-9-3×12-F-2Y 36 3 tubes of 12 OF 1.5 11.6 112
    RO2513-ML-B-9-6×6-F-2Y 36 6 tubes of 6 OF 1.5 11.6 112
    RO2513-ML-B-9-6×12-F-2Y 72 6 tubes of 12 OF 1.5 11.6 112
    RO2513-ML-B-9-12×12-F-2Y 144 12 tubes of 12 OF 1.5 17.0 225
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