GYXTW 2 - 24F OD 7.0mm Fiber Cable
February 21, 2025
1. Cable Construction
1.1 Cross Sectional Diagram

Fiber Counts |
2~12F |
14-24F |
|
Loose Tube |
Material |
PBT |
|
OD(mm): |
2.0± 0.1 mm |
2.4± 0.1 mm |
|
Water Blocking Material |
Water-bloking tape |
||
Strength member |
2*0.8mm Steel wire |
||
Anti-pressure components |
PSP |
||
Sheath |
Material: |
PE |
|
Color: |
Black |
||
Cable |
Diameter |
7.0± 0.3mm |
7.5± 0.3mm |
Weight |
50±5 kg/km |
60±5 kg/km |
|
Operating temperature |
-40℃~+70℃ |
||
Store/Transport temperature |
-40℃~+70℃ |
||
Installation temperature |
-40℃~+70℃ |
3. Fiber and Loose buffer tube Identification
NO. |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
Fiber Color |
Blue |
Orange |
Green |
Brown |
Grey |
White |
Red |
Black |
Yellow |
Violet |
Pink |
Aqua |
4. Optical Fiber
ITEMS |
UNITS |
SPECIFICATION |
|
Fiber Type |
- |
G652D |
|
Attenuation |
dB/km |
Before Cable |
After Cable |
|
|
1310 nm≤ 0.34 1550 nm≤ 0.21 |
1310 nm≤ 0.35 1550 nm≤ 0.24 |
Chromatic Dispersion |
ps/nm.km |
1310 nm≤ 3.5 1550 nm≤ 18 1625 nm≤ 22 |
|
Zero Dispersion Slope |
ps/nm2.km |
0.093 |
|
Zero Dispersion Wavelength |
nm |
1300 ~ 1324 |
|
PMD (M=20, Q=0.01%) |
ps/√km |
≤ 0.2 |
|
Cut-off Wavelength (lcc) |
nm |
≤ 1260 |
|
Attenuation vs. Bending (60mm x100turns) |
dB |
≤ 0.1 at 1625 nm (60mm x100turns) |
|
Mode Field Diameter |
mm |
(8.6-9.5) ± 0.7 @1310nm |
|
Core-Clad Concentricity |
mm |
≤ 0.5 |
|
Cladding Diameter |
mm |
125±2 |
|
Cladding Non-circularity |
% |
≤ 0.8 |
|
Coating Diameter |
mm |
245±5 |
|
Proof Test |
Gpa |
≥ 0.69 |
5. Mechanical and Environmental Performance of the Cable
NO. |
ITEMS |
TEST METHOD |
ACCEPTANCE CRITERIA |
1 |
Tensile Loading Test IEC 60794-1-E1
|
-. Tensile load:800N -. Maintained time:1min - Length of cable: about 150m |
-.Attenuation increment@1550nm:≤0.1dB -. No jacket cracking and fiber breakage |
2 |
Crush Resistance Test IEC 60794-1-E3
|
-.Load:1000 N/100mm -Load time:1 minutes -Load time::10time |
-.Attenuation increment@1550nm:≤0.1dB -. No jacket cracking and fiber breakage |
3 |
Impact Resistance Test IEC 60794-1-E4 |
-.Impact height:150mm -.Impact weigh:3J -.Impact point:5 -.Impact frequency:1/point |
-.Attenuation increment@1550nm:≤0.1dB -. No jacket cracking and fiber breakage |
4 |
Repeated Bending IEC 60794-1-E6
|
-.Angle bending:±90 degree -.Subject weight:4.5kg -.Testing time:100seconds -.Relax time:10seconds |
-.Attenuation increment@1550nm:≤0.1dB -. No jacket cracking and fiber breakage |
5 |
Torsion Test IEC 60794-1-E7 |
-.Length:1m -.Testing time:10min -.Relax time:10seconds |
-.Attenuation increment@1550nm:≤0.1dB -. No jacket cracking and fiber breakage |
6 |
Water Penetration Test |
#Test method:IEC 60794-1-F5B -.Height of pressure head:1m -.Length of specimen:3m -.Test time: 24 hours |
-. No leakage through the open cable end |
7 |
Temperature Cycling Test IEC 60794-1-F1
|
-.Temperature steps:+20℃、- 40℃、+70℃、+20℃ -.Testing Time:12 hours/step -.Cycle index:2 |
-. Attenuation increment@1550nm:≤0.1dB -. No jacket cracking and fiber breakage |
5.2 Fiber Optical Cable bending radius
Static bending: ≥ 10 times than cable out diameter
Dynamic bending: ≥ 20 times than cable out diameter.
6. Package and Mark
6.1 PACKAGE
Material of the drum shall be fumigation wood.
1km/Drum: 550*550*400mm;
Not allowed two length units of cable in one drum, Two ends should be packed inside drum, reserve length of cable not less than 1meter.
6.2 MARK
White color Ink jet printing, Cable Mark: Brand, Cable type, Fiber type and counts, Year of manufacture and Length marking.