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CT2242 Outdoor Single Mode Armoured Trackside Optical Fiber Cables
Application:
The cables are designed for long distance telecom links on optical fi bres along railway tracks. The cables are suitable for installation directly in channels or buried.
Standards:
SNCF CT 2242.6.1
Construction:
Fibres
Singlemode optical fibres G652 coloured (6 or 12 per tube).
Central Strength Member
Non-metallic central reinforcement (FRP).
Tube
PBT polyester tubes containing fibres.
Filling
Petroleum jelly with water-swelling yarns to provide longitudinal watertightness.
Inner Sheath
Low density polyethylene.
Armour
0.25mm thick corrugated steel tape armour.
Outer Sheath
Low density polyethylene.
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 | 450 |
| Maximum Laying Tension | N | 3000 |
Mechanical and Thermal Properties:
Minimum Bending Radius: 310mm.
Temperature Range: -40℃ to +70℃ (during operation);
-10℃ +70℃ (during installation)
Dimensions And Weight:
| Cable Code | No. of fibres | Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|---|---|---|---|---|
| RO2242-ML-C-9-Tn×Fn-SR-2Y(STA)2Y | 1-36 | 1.5 | 14.5 | 260 |
| RO2242-ML-C-9-Tn×Fn-SR-2Y(STA)2Y | 48-72 | 1.5 | 16.5 | 300 |
| RO2242-ML-C-9-Tn×Fn-SR-2Y(STA)2Y | 80-144 | 1.5 | 22.0 | 510 |