Original
By certification 
1. Product Description
This specification covers the general requirements and performance of cable for GYXTW, which FOC offered including optical characteristics, mechanical characteristics and geometrical characteristics and etc.
2. OPTICAL FIBER
Optical fiber characteristics (FPC G.652 FIBER)
| Category | Description |
Specifications |
|
| G.652D | |||
| Optical Specifications | Attenuation |
@1310nm |
≤0.35dB/km |
@1550nm |
≤0.22dB/km | ||
| @1625nm | ≤0.30dB/km | ||
Attenuation discontinuity |
≤0.05 dB | ||
Attenuation vs. Wavelength |
@1285~1330nm |
≤0.05 dB/km |
|
@1525~1575nm |
≤0.05 dB/km | ||
Zero Dispersion Wavelength |
1300~1324nm | ||
Zero Dispersion Slope |
≤0.092ps/(nm2.km) | ||
Dispersion |
@1310nm |
≤3.5 ps/nm.km |
|
@1550nm |
≤18 ps/nm.km | ||
| Cable Cutoff Wavelength(λcc) | ≤1260nm | ||
Effective Group Index of Refraction |
@1310nm |
1.4675 |
|
@1550nm |
1.4681 | ||
|
Geometric Specifications |
Mode Field Diameter | @1310nm |
9.2±0.6μm |
@1550nm |
10.4±0.8μm | ||
Cladding Diameter |
125±1μm | ||
Cladding Non-Circularity |
≤1.0% | ||
Coating Diameter |
245±7μm | ||
Coating/Cladding Concentricity Error |
≤8μm | ||
Core/Cladding Concentricity Error |
≤0.8μm | ||
|
Mechanical Specifications |
Proof Test level |
≥1.0% |
|
Fiber Curl Radius |
≥4.0m | ||
Peak Coating Strip Force |
1.3~8.9N | ||
3. OPTICAL CABLE
3.1 Construction of cable
GYXTW
Structure |
Unit |
Parameter |
||
Fiber count |
Fibers |
2~12 |
16~24 |
|
Central Strength Member |
mm |
Ф1.0*2 |
Ф1.0*2 |
|
Cable diameter |
mm |
7.6 |
8.5 |
|
Outer Sheath Thickness |
mm |
Nom1.0 ,min 0.8 |
Nom1.0 ,min 0.8 |
|
Tensile strength |
Long term | N |
600 |
600 |
| Short term | N |
1500 |
1500 |
|
Crush Resistance |
Long term | N |
300 |
300 |
| Short term | N |
1000 |
1000 |
|
Bending Radius |
Dynamic | ≥20×Cable Diameter |
||
| Static | ≥10×Cable Diameter |
|||
Operating Temperature |
℃ |
-40 --- +60 |
||
3.2 Fiber coding,The color coding of the optical fiber shall be in accordance with Table 3.2.1
No. of fiber |
1 |
2 |
3 |
4 |
5 |
6 |
Color of fiber |
Blue |
Orange |
Green |
Brown |
Grey |
White |
No. of fiber |
7 |
8 |
9 |
10 |
11 |
12 |
Color of fiber |
Red |
Black |
Yellow |
Violet |
Pink |
Turquoise |
No. of fiber |
13 |
14 |
15 |
16 |
17 |
18 |
Color of fiber |
Blue+S |
Orange+S |
Green+S |
Brown+S |
Grey+S |
White+S |
No. of fiber |
19 |
20 |
21 |
22 |
23 |
24 |
Color of fiber |
Red+S |
Black+S |
Yellow+S |
Violet+S |
Pink+S |
Turquoise+S |
S：means single ring mark.
4. TEST REQUIREMENTS
No |
Item |
Test standard |
Method |
Acceptance criteria |
1 |
Tensile test |
IEC-60794-1-E1 |
-Max. Tensile strength:1500N -Sample length:50 meters -Time: 1minutes; |
-Fiber strain at maximum Load: max. 0.33% -Attenuation increase≤0.1dB |
2 |
Crush test |
IEC-60794-1-E3 |
-Load:1000N -Time: 1 minutes -Length: 100mm |
-No splits or cracks in the outer jacket; -Attenuation increase<0.10dB, |
3 |
Impact test |
IEC-60794-1-E4 |
-Impact energy: 450g - Height:1 meter -Impact points: min.1 --Number of impacts: 5 |
-No splits or cracks in the outer jacket -Attenuation increase≤0.10dB |
4 |
Repeated bending |
IEC-60794-1-E6 |
-R=20×cable outer diameter -1m cable length with 150N weight,30 cycles |
- No splits or cracks in the outer jacket -Attenuation increase ≤0.10dB |
5 |
Torsion test |
IEC-60794-1-E7 |
-1m cable length with 150N weight -±90 degrees, 10 cycles |
- No splits or cracks in the outer jacket -Attenuation increase ≤0.10dB |
6 |
Bending test |
IEC-60794-1-E11 |
-Diameter of mandrel: 20×D -Number of turns/helix:10 -Number of cycles: 5 |
- No splits or cracks in the outer jacket - No fiber break |
7 |
Temperature cycling test |
IEC-60794-1-F1 |
-Temperature step: +20℃→-40℃→+60℃→-40℃→ +60℃→+20℃ -Time per each step: 12 hrs -Number of cycles: 2 cycles |
-Attenuation variation for reference value(the attenuation to be measured before test at +20±3℃) ≤0.10dB, |
8 |
Water penetration test |
IEC-60794-1-F5 |
-Water height: 1m -Sample length:3m -Duration of test: 24hrs |
-No water leakage at the end of the sample |
9 |
Drip test |
IEC-60794-1-E14 |
-Five 0.3m samples suspended vertically in a climate chamber, raised temperature to +70℃ |
-No filling compound shall drip from tubes after 24 hr |
5. PACKING AND DRUM
5.1 The cable is wound on a non-returnable wooden drum. Both ends of cable are securely fastened to drum and sealed with a shrinkable cap to prevent ingress of moisture. The following information shall be marked on the outer sheath of the cable at an interval of about 1 meter.
- Cable type and number of optical fiber
- Manufacturer name
- Month and Year of Manufacture
- Cable length
The sequential number of the cable length shall be marked on the outer sheath of the cable at an interval of 1meter ± 1%.
5.2 Drum marking, Each side of every wooden drum shall be permanently marked in a minimum of 2.5~3 cm high lettering with following:
- Manufacture name and logo
- Cable length
- Cable type and
-End of Specification-
