ST2513/CT2243 Outdoor Single Mode Unarmoured Trackside Optical Fiber Cables

Application

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.

Standard

  • SNCF ST 2513-99

Cable Construction

ST2513/CT2243 Outdoor Single Mode Unarmoured Trackside Optical Fiber Cables Railway Cable
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℃

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℃ to +60℃ (during operation); -10℃ +60℃ (during installation)

Dimensions and Weight

Cable Code No. of fi bres No of Tubes x No of Fibers/Tube Nominal Sheath Thickness Nominal Overall Diameter Nominal Weight
        mm 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