Application
The 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: 1mm.
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 |
