Fire Resistant Central Loose Tube Optical Fiber Cables

Application

These optical fiber cables are designed to data transmission in ship and especially in the cruise ship where low smoke, halogen-free and fire resistant cables are required to increase safety on board, suitable for flexible installation on and below the deck of commercial ships without constant exposure to oil, grease and other lubricants.

Standards

IEC 60092-350/351/352/353/359/370/376
IEC 60332-1-2
IEC 60332-3-22
IEC 60754-1/2
IEC 61034
IEC 60331-11 and -25

Construction

Optical Fiber: Loose tube, gel filled.
Inner Tape: Fire protection tape.
Outer Tape: Fire protection tape.
Outer Sheath: SHF1.

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-FCLA-X-12-H-J	12	10.0	115
MLN-FCLB-X-24-H-J	24	10.5	125

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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