K209B LSZH Armoured Optical Fiber Cables

Application

The K209B LSZH Armoured railway Optical Fiber cables are designed for long distance telecommunication and using optical fibres in urban railways infrastructure. These low smoke halogen-free cables are laid on hooks, pulled through ducts or cable trays.

Standards

● RATP K209B or RATP K209A

Construction

Compact Tube
6 or 12 singlemode optical fibres G652 or multimode fi bers assembled under thermoplastic “peelable” skin. Tube diameter: maximum 1.5mm.

Filling
Water-swelling yarns.

Tube
Thermoplastic.

Peripheral Strength Member
Water-swelling glass yarns.

Armour
Corrugated steel tape armour 25/100.

Sheath
LSZH.

Optional

K209A Type: For K209A type, the cables have loose tubes with 6-12 fi bers, steel wire strand as central strength member, glass yarn reinforced, incorporating a corrugated steel tape armour and an outer UV stabilized LSZH jacket.

Electrical Characteristics at 20℃

Optical & Geometrical Properties for Single Mode Fibers

Maximum Attenuation		G652
@1310nm	dB/km	0.35
@1550nm	dB/km	0.22
Maximum Chromatic Dispersion
Between 1260 and 1360nm	ps/(nm/km)	3.5
Between 1530 and 1565nm	ps/(nm/km)	19
Zero Dispersion Wavelength	nm	1310±11
Zero Dispersion Slope	ps/(nm2.km)	0.09
Numerical Aperture		0.14
Point discontinuity	dB	0.1
PMD (individual fi ber)	ps/km	0.2
Maximum Cutoff Wavelength	nm	1260
Cladding Diameter	um	125±1
Core/Cladding Concentricity Error	um	≤0.5
Cladding Non Circularity	%	≤1
Coating Non Circularity	%	≤6
Proof Test Level	Kpsi (GN/m2)	100 (0.7)
Crush Resistance	N/cm	300
Maximum Laying Tension	N	3000

Optical & Geometrical Properties for Multimode Fibers

		50/125	62.5/125
Maximum Attenuation
@850nm	dB/km	≤2.5	≤3.0
@1300nm	dB/km	≤0.7	≤0.8
Maximum Chromatic Dispersion
@850nm	MHz*km	≥500	≥200
@1300nm	MHz*km	≥800	≥500
Zero Dispersion Wavelength	nm	1310	1310
Numerical Aperture	-	0.20±0.015	0.275±0.015
Core Diameter	um	50±3	62.5±3
Cladding Diameter	um	125±2	125±2
Core/Cladding Concentricity Error(Offset)	um	≤1.5	≤1.5
Coating-Clad Concentricity Error(Offset)	um	≤8	≤8
Core Non-Circularity	%	≤6	≤6
Cladding Non-Circularity	%	≤2 1	≤2 1
Coating Diameter	um	245±10	245±10
Proof-Test Level	Kpsi (GN/m2)	100 (0.7)	100 (0.7)

Mechanical and Thermal Properties

Minimum Bending Radius:20×OD
Temperature Range: -40℃ to +60℃ (during operation); -10℃ +60℃ (during installation)

Dimensions And Weight

K209A

Cable Code	No. of fibres	Distribution	Nominal Sheath Thickness mm	Nominal Overall Diameter mm	Nominal Weight kg/km
RO/K209A-ML-C-9-TnxFn-SR-(STA)H	1-36	6 fi bre per tubes	1.8	12	190
RO/K209A-ML-C-9-TnxFn-SR-(STA)H	42-72	6/12 fi bre per tubes	1.8	13.5	230

Tn: Number of tubes; Fn: Number of fi bers in a tube

K209B

Cable Code	No. of fibres	No of Tubes x No of Fibers/Tube	Nominal Sheath Thickness mm	Nominal Overall Diameter mm	Nominal Weight kg/km
Singlemode Fibres From 6 to 36 OF – G652
RO/K209B-ML-C-9-2x6-F-(STA)H	12	2 tubes of 6 OF	1.8	13	112
RO/K209B-ML-C-9-4x6-F-(STA)H	24	4 tubes of 6 OF	1.8	13	112
RO/K209B-ML-C-9-6x6-F-(STA)H	36	6 tubes of 6 OF	1.8	13	112
Singlemode Fibres From 48 to 72 OF – G652
RO/K209B-ML-C-9-8x6-F-(STA)H	48	8 tubes of 6 OF	2.5	15.5	230
RO/K209B-ML-C-9-6x12-F-(STA)H	72	6 tubes of 12 OF	2.8	15.5	230
Multimode Fibres From 6 to 36 OF – 50/125
RO/K209B-ML-C-9-1x6-F-(STA)H	6	1 tubes of 6 OF	1.8	13	112
RO/K209B-ML-C-9-2x6-F-(STA)H	12	2 tubes of 6 OF	1.8	13	112