Applications :

• The cables are designed for long distance telecom links on optical fibres along railway tracks. The cables are suitable for pulled through ducts or laid in channels.

Standards :

• SNCF ST 2513-99

 

Construction :

• Fibres : Singlemode optical fibres G652 coloured (6 or 12 per tube).
• Tube : PBT polyester tubes From 12 to 72 OFs: 1 to 6 tubes; 144 OFs: 12 tubes.
• Central Strength Member : Non-metallic central reinforcement (FRP).
• Filling : Petroleum jelly + water-swelling yarns.
• Reinforcement : Water-swelling aramid fi bres.
• Sheath : PE sheath.

Electrical Characteristics at 20 °C :

• 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	From 12 to 72 FO: 2500;144 FO: 3000

Mechanical and Thermal Properties :

• Minimum Bending Radius : from 12 to 72 FO: 230mm; 144 FO: 340mm.
• Temperature Range : -30°C to +60°C (during operation); -10°C +60°C (during installation).

Dimensions and Weight :

 

Cable Code	No. of fi bres	No of Tubes x No of Fibers/Tube	Nominal Sheath Thickness mm	Nominal Overall Diameter mm	Nominal Weight kg/km
RO2513-ML-B-9-1×12-F-2Y	12	1 tubes of 12 OF	1.5	11.6	112
RO2513-ML-B-9-3×12-F-2Y	36	3 tubes of 12 OF	1.5	11.6	112
RO2513-ML-B-9-6×6-F-2Y	36	6 tubes of 6 OF	1.5	11.6	112
RO2513-ML-B-9-6×12-F-2Y	72	6 tubes of 12 OF	1.5	11.6	112
RO2513-ML-B-9-12×12-F-2Y	144	12 tubes of 12 OF	1.5	17.0	225

 

 

UV Resistant	Water Resistant		Buried in Ciround	Laid In Ducts	Zero Halogen IEC 60754-1/NF C20-454 EN 50267-2-1