Product Overview
These central loose tube optical fiber cables are engineered for reliable data transmission in ships, particularly in cruise ships where low smoke, halogen free and fire retardant cables are essential for enhanced onboard safety.
Technical Standards & Certifications
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Flame Propagation: IEC 60332-1-2
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Fire Performance: IEC 60332-3-22
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Gas Emission: IEC 60754-1/2
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Smoke Density: IEC 61034
Cable Construction
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Central Tube: 250μm, fully filled with thixotropic jelly
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Reinforcing Elements: Glass yarns with watertight tape
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Outer Sheath: LSOH and FR compound
Fiber Specifications
Geometric & Mechanical Properties
| Parameter | Unit | G50/125 (OM2) | G62.5/125 (OM1) | E9/125 (OS1) |
|---|---|---|---|---|
| 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 |
Transmission Properties
| Parameter | Unit | G50/125 (OM2) | G62.5/125 (OM1) | E9/125 (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 & Thermal Properties
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Bending Radius for Fixed Installations: 20× cable outer diameter
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Temperature Range: -20℃ to +60℃
Dimensions & Weight
| Part Number | 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 |
Fiber Type Coding (X in Part Number)
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0: Fiber and copper conductors in cable
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4: 50/125 multi-mode fiber (OM3)
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5: 50/125 multi-mode fiber (OM2)
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6: 50/125 multi-mode fiber (OM1)
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7: NZDS SM fiber per G.656
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8: NZDS SM fiber per G.655
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9: Standard SM fiber per G.652.D
Features & Benefits
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Central Loose Tube Design: Optimal fiber protection with 250μm tube
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Water Blocking: Fully filled with thixotropic jelly for moisture protection
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Low Smoke Zero Halogen: LSOH sheath for enhanced safety in enclosed spaces
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Fire Retardant: Meets IEC flame propagation standards
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Reinforced Construction: Glass yarns with watertight tape for mechanical strength
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Compact Design: Small 8.3mm diameter for easy installation
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Lightweight: Only 78kg/km for simplified handling
Application Areas
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Cruise ship data networks and communication systems
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Commercial vessel data transmission
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Shipboard control and monitoring networks
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Marine automation systems
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Offshore platform communications
Note: All specifications comply with relevant IEC standards for marine applications. The central loose tube design provides superior fiber protection while maintaining compact dimensions ideal for shipboard installations.