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The bow-type drop optic cable, is used for outdoor or indoor installation, includes central optical fibre(s) with 2 parallel FRPs as the strength members placed on both sides. It is easily strip and splice, simplified installation and maintenance. The non-metallic strength members to realize the tensile load. The optical fiber can be single mode and high silica material (based on ITU-T recommendation G652D, G657A1 and G657A2).
The basic constructions of bow type drop optical cable as the picture below:
The cable size should be (2.0±0.1mm) in width x (3.0±0.1mm) in height. (5.2±0.1mm) in height
Operation wavelengths should be 1310nm, 1490nm , 1550nm and 1625nm wavelength bands.
Items | Specified values | • |
Mode field diameter at 1310nm | 9.5 um ±0.4 um | |
Mode field diameter at 1550nm | 10um±1um | |
Mode field concentricity error | Less than 0.5um | |
Cladding diameter | 125±1um | |
Cladding non circularity | Less than 1% | |
cladding concentricity error | Less than 0.6um | |
Coating diameter | 245±5um | |
coating non circularity | Less than 5% | |
Fiber cut-off wavelength | 1150-1280 nm | |
Cable cut-off wavelength | Less thanl260 nm | |
Chromatic dispersion coefficient: | ||
- At 1300-1324nm | Less than 3 ps/nm.Km | |
-At 1550 nm | Less than 17.5 ps/nm.Km | |
Zero dispersion wavelength | 1300-1324nm | |
Zero dispersion slope | Less than 0.092ps/nm2.Km | |
Attenuation coefficient: | ||
-1310 nm | Less than 0.4dB/Km | |
-1550 nm | Less than 0.3dB/Km | |
PMD | Less than 0.1 ps/^Km |
Tensile load:
All optical fibers with primary coating shall pass the proof test before cabling. The tensile load carried for duration of approximately 1 second shall not be less than 5N and the proof strain of optical fiber shall not be less than 1%.
Bending radius:
The minimum bending radius of the coated fiber should be less than 7.5mm.
Color-coding:
All fibers used in the cable are color-coded with undeniable color to facilitate individual fiber identification. The color-coding should be according to IEC 304 as follow:
* Temperature ranges:
Transportation and storage temperature | -40°C to +70°C |
Installation temperature | -10°C to +60°C |
Operating temperature | -20°C to +60°C |
The length number is marked at regular intervals of one meter along the outer sheath of the entire cable length.
The accuracy of the marking shall be held within a limit of ±1%.
Each cable shall have the following information clearly marked between the numbers marked:
Name of manufacturer Year of manufacturer. Code of cable.
The color of these marking shall be undeniable and preferably to be white color.
No. of cable | 2/4 | |||
Fiber Model | G.657A1 | |||
K FRP | Diameter（±0.03）mm | 0.5 | ||
NO. | 2 | |||
Outer Sheath | Material | LSZH | ||
Colour | white | |||
Cable Diameter（±0.2）mm | 2.0×3.0 | |||
Cable Wetght（±2）kg/km | 10.0 | |||
Attenuation | 1310nm | dB/km | 0.50 | |
1550nm | 0.40 | |||
Allowable Tensile Strength | Short Term | N | 80 | |
Long Term | 40 | |||
Allowable Crush Resistance | Short Term | N/100mm | 2200 | |
Long Term | 1000 | |||
Min. bending radius | Without Tension | 15.0×Cable-φ | ||
Under Maximum Tension | 30.0×Cable-φ | |||
Temperature range （℃） | Installation | -20~+60 | ||
Transport&Storage | -40~+70 | |||
Operation | -40~+70 | |||
Yes, we are so glad to offer you sample to test.
3km
We can offer you Single mode G652D, G657A, G657B and OM1, OM2, OM3 etc.
