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Central Loose Tube Optical Fiber Cables

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 mm

Nominal Weight 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)