Tight Buffer 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 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

Coated Optical Fiber: 250/900μm.
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: 15×OD
Temperature Range: -20℃ ~ +60℃

Dimensions and Weight

Part No.	No. of Optical Fibers	Nominal Overall Diameter mm	Nominal Weight kg/km
MLN-MTA-X-2/4-H-VT-G	2/4	6.4	45
MLN-MTA-X-6/8-H-VT-G	6/8	7.2	52
MLN-MTA-X-10/12-H-VT-G	10/12	7.7	60

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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