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    Central Loose Tube Optical Fiber Cables

    Application

    These optical fiber cables are designed to data transmission in ship and specially in cruise ship where low smoke, halogen free and fire retardant cables are required to increase safety on board.

    Standards

    IEC 60332-1-2

    IEC 60332-3-22

    IEC 60754-1/2

    IEC 61034

    Construction

    Central Tube : 250μm. Fully filled with thixotropic jelly.

    Reinforcing Elements : Glass yarns with watertight tape.

    Outer Sheath : LSOH and FR compound.

    Fiber Specification

      G50/125 G62.5/125 E9/125
    Geometry/Mechanical Properties      
    Core Diameter μm 50 ± 2.5 62.5 ± 3
    Mode Field Diameter (at 1310 nm) μm     9.2 ± 0.4
    Cladding Diameter μm 125 ± 2 125 ± 1 125 ± 2
    Coating Diameter μm 245 ± 10 245 ± 5 245 ± 10
    Core Non-circularity % < 5 < 5  
    Cladding Non-circularity % < 1 < 1 < 1
    Core/Clad Concentricity Error μm < 1.5 < 1.5 < 0.8
    Eccentricity of Coating μm < 10 < 10 < 10
    Screen Test   ≥100 kpsi ≥100 kpsi ≥100 kpsi
    Transmission Properties   OM2 OM1 OS1
    Wavelength nm 850 1300 850 1300 1310 1550
    Attenuation Max. dB/km 2.7 0.8 3.2 0.9 0.36 0.22
    Bandwidth Min. MHz. km 500 1000 250 600    
    Effective Group of Refraction   1.483 1.478 1.497 1.493 1.4695 1.4701
    Numerical Aperture   0.200 ± 0.015 0.275 ± 0.015    
    Dispersion Coefficient Max. ps/nm.km         3.5 18
    Zero Dispersion Wavelength nm           1300–1322
    Dispersion Slope ps/nm².km           ≤0.092
    Cutoff Wavelength (cabled) nm           ≤1250
    Polarization Mode Dispersion ps/km1/2           ≤0.1

    Mechanical and Thermal Properties

    Bending Radius for Fixed Installations : 20×OD

    Temperature Range : -20℃ ~ +60℃

    Dimensions and Weight

    Part No. No. of Optical Fibers Nominal Overall Diameter Nominal Weight
        mm kg/km
    MLN-CLA-X-1~24-H-J-G Up to 24 8.3 78

    Note : X : Fiber type

    0=Fiber and copper conductors in cable 4=50/125 multi-mode fiber (OM3)

    5=50/125 multi-mode fiber (OM2)

    6=50/125 multi-mode fiber (OM1)

    7=NZDS SM fiber per G.656.

    8=NZDS SM fiber per G.655.

    9=Standard SM fiber per G.652.D

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