1. Product Description
This specification covers the general requirements and performance of cable for FTTH, which FOC offered including optical characteristics, mechanical characteristics and geometrical characteristics and etc.
2. OPTICAL FIBER
Optical fiber characteristics (FPC G.657A FIBER)
Category | Description |
Specifications |
|
G.657A | |||
Optical Specifications | Attenuation |
@1310nm | ≤0.4dB/km |
@1550nm | ≤0.3dB/km |
||
Attenuation discontinuity |
≤0.05 dB |
||
Zero Dispersion Wavelength |
1300~1324nm |
||
Zero Dispersion Slope |
≤0.090ps/(nm2.km) |
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Dispersion |
@1288-1339nm | ≤3.5 ps/nm.km |
|
@1271-1360nm | ≤5.3 ps/nm.km |
||
@1550nm | ≤18 ps/nm.km |
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Cable Cutoff Wavelength(λcc) |
≤1260nm |
||
Geometric Specifications |
Mode Field Diameter |
@1310nm | (8.6~9.2)±0.4μm |
Cladding Diameter |
125±0.7μm |
||
Cladding Non-Circularity |
≤1.0% |
||
Coating Diameter |
243±7μm |
||
Coating/Cladding Concentricity Error |
≤8μm |
||
Core/Cladding Concentricity Error |
≤0.6μm |
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Mechanical Specifications |
Proof Test level |
≥1.0% |
|
Fiber Curl Radius |
≥4.0m |
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Peak Coating Strip Force |
1.3~8.9N |
3. OPTICAL CABLE
3.1 Construction of cable
-Color Identification
Fibers color: Blue, Orange、Green、Brown
Sheath color: White or Black
Fiber count |
1/2 |
4 |
|
Attenuation G.657 (dB/km) @1310/@1550nm |
0.4/0.3 |
0.4/0.3 |
|
Diameter (mm) |
2.0X3.0(±0.15) |
2.0X3.5(±0.15) |
|
Weight (kg/km) |
8.5 |
11 |
|
Tensile strength (N) | Long term |
FRP:40 STEEL WIRE:100 |
|
short term |
FRP:80 STEEL WIRE:200 |
||
Crush resistance (N/100mm) |
Long term |
FRP:500 STEEL WIRE:1000 |
|
short term |
FRP:1000 STEEL WIRE:2200 |
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Bend radius (mm) | Static |
10 (G.657A) |
|
Dynamic |
20 (G.657A) |
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Operating temperature (℃) |
-20~+60 |
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Easily strip each unit and easily separate the fiber from the sheath. |
-Simple structure ,light weight and high practicability;
-Novel flute design easily strip and splice, simplify the installation and maintenance;
-Two parallel FRP strength members ensure good performance of crush and tension resistance to protect the fiber;
-If G.657 fiber be put in the cable, ensure the very good bending performance. (Bend radius 10mm/G.657A
-Low smoke, zero halogen and flame retardant sheath;
-End of Specification-