The typical bow-type drop optical cable includes central optical fibers with 2 Steel wire as the strength members placed on both sides, a LSZH sheath is extruded outside.

Fiber Optical

Fiber count
1/2

Color Of  fiber
Blue Orange

Fiber  Type
G657A2

Strength member
Galvanized steel wire

Outer sheath
LSZH(white)

Cable Diameter dimensions
2.0( Height) × 3.0W ± 0.1 mm(width)

Operation temperature range
-20 ℃ to + 70 ℃

Installation temperature range
-0  ℃ to + 60 ℃

Transport and storage temperature range
-20 ℃ to + 70 ℃

Minimal installation bending radius
30 x OD

Minimal operation bending radius
15 x OD

Cable marking
The marking length 1meter apart , as required

 

G657A2 fiber

Category
Description
G657A1
G657A2/B2

Standard
Standard

Optical transmission performance
Attenuation coefficient
1310nm
≤0.35
≤0.35

1383nm
≤0.35
≤0.35

1550nm
≤0.21
≤0.21

1625nm
≤0.23
≤0.23

Attenuation inhomogeneity
1310nm、1550nm
≤0.03
≤0.05

Attenuation discontinuity
1310nm、1550nm
≤0.03
≤0.05

Wavelength attenuation

characteristics
1288~1330nm
≤0.05
≤0.05

1525~1575nm
≤0.05
≤0.05

Dispersion characteristic
The zero dispersion wavelength

nm
1300~1324
1300~1324

Zero dispersion slope
≤0.092
≤0.092

1288~1339nm
≤3.5
≤3.5

1271~1360nm
≤5.3
≤5.3

1550nm
≤18
≤18

1625nm
≤22
≤22

The polarization mode dispersion of the fiber
≤0.1
≤0.1

Fiber cutoff wavelength
≤1260
≤1260

Macro bending loss

（10 laps，30mm）
1550nm
≤0.2dB
≤0.03

（10 laps，30mm）
1625nm
≤0.5dB
≤0.1

（1 lap，20mm）
1550nm
≤0.3dB
≤0.1

（1 lap，20mm）
1625nm
≤1.0dB
≤0.2

（1 lap，15mm）
1550nm
–
≤0.5

（1 lap，15mm）
1625nm
–
≤1.0

Mode field diameter
1310nm
8.8±0.4
8.6±0.4

Dimension parameter
Warp degrees

≥4.0
≥4.0

Cladding diameter

125 ± 0.7
125 ± 0.7

Core/package concentricity

≤0.5
≤0.5

Cladding non-circularity

≤1.0%
≤1.0%

Coating diameter

243± 5
243± 5

Coating concentricity

≤8
≤8

Coating roundness

≤3%
≤3%

Mechanical property
Strain

≥1.05%
≥1.05%

Tensile strength(10m)
15% Weber fracture probability
2.76
2.76

50% Weber fracture probability
3.45
3.45

Fatigue parameters Nd

≥ 22
≥ 22

Coating peak stripping force N

1.0~8.9
1.0~8.9

Coating average stripping force N
1.0~5.0
1.0~5.0

Environmental

performance
Additional damping temperature cycle (-60℃ ～ +85℃)

dB/km@1310nm，1550nm, 1625 nm
≤ 0.05
≤ 0.05

 

Wet and heat aging (+85±2℃, 85%RH，30 days) dB/km@1310nm，

1550nm, 1625 nm
≤ 0.05
≤ 0.05

High temperature aging(85±2℃，30 days ) dB/km @1310nm，1550

nm, 1625 nm
≤ 0.05
≤ 0.05

Additional attenuation of flooding (23±2℃，30 days ) dB/km

@1310nm，1550nm, 1625 nm
≤ 0.05
≤ 0.05

Fiber count: 1/2/4
Color of fiber: Blue, Orange, Green, Brown, Grey
Fiber Type: G657A2
Strength member: Steel wire/FRP
Supporting messenger wire: 1.0MM*x1 steel wire
Outer sheath: LSZH Lower smoke zero halogen frame retardant & UV Anti
Cable Diameter dimensions: 2.0( Height) × 5.0W ± 0.1 mm(width)
Operation temperature range: -20 ℃ to + 70 ℃
Installation temperature range: -20 ℃ to + 60 ℃
Transport and storage temperature range: -20 ℃ to + 70 ℃
Tension Load (N): Short term :800N Long term :500N
Crush Load(N): Long term 1000 N/100mm Short term:2200N/100mm
Minimal installation bending radius: 30 x OD
Minimal operation bending radius: 15 x OD
Cable marking: The marking length 1meter apart , as required

 

Category
Description
G657A1
G657A2/B2

Standard
Standard

Optical transmission performance
Attenuation coefficient
1310nm
≤0.35
≤0.35

1383nm
≤0.35
≤0.35

1550nm
≤0.21
≤0.21

1625nm
≤0.23
≤0.23

Attenuation inhomogeneity
1310nm、1550nm
≤0.03
≤0.05

Attenuation discontinuity
1310nm、1550nm
≤0.03
≤0.05

Wavelength attenuation

characteristics
1288~1330nm
≤0.05
≤0.05

1525~1575nm
≤0.05
≤0.05

Dispersion characteristic
The zero dispersion wavelength

nm
1300~1324
1300~1324

Zero dispersion slope
≤0.092
≤0.092

1288~1339nm
≤3.5
≤3.5

1271~1360nm
≤5.3
≤5.3

1550nm
≤18
≤18

1625nm
≤22
≤22

The polarization mode dispersion of the fiber
≤0.1
≤0.1

Fiber cutoff wavelength
≤1260
≤1260

Macro bending loss

（10 laps，30mm）
1550nm
≤0.2dB
≤0.03

（10 laps，30mm）
1625nm
≤0.5dB
≤0.1

（1 lap，20mm）
1550nm
≤0.3dB
≤0.1

（1 lap，20mm）
1625nm
≤1.0dB
≤0.2

（1 lap，15mm）
1550nm
–
≤0.5

（1 lap，15mm）
1625nm
–
≤1.0

Mode field diameter
1310nm
8.8±0.4
8.6±0.4

Dimension parameter
Warp degrees
 
≥4.0
≥4.0

Cladding diameter
 
125 ± 0.7
125 ± 0.7

Core/package concentricity
 
≤0.5
≤0.5

Cladding non-circularity
 
≤1.0%
≤1.0%

Coating diameter
 
243± 5
243± 5

Coating concentricity
 
≤8
≤8

Coating roundness
 
≤3%
≤3%

Mechanical property
Strain
 
≥1.05%
≥1.05%

Tensile strength(10m)
15% Weber fracture probability
2.76
2.76

 
50% Weber fracture probability
3.45
3.45

Fatigue parameters Nd
 
≥ 22
≥ 22

Coating peak stripping force N
 
1.0~8.9
1.0~8.9

Coating average stripping force N
1.0~5.0
1.0~5.0

Environmental performance
Additional damping temperature cycle (-60℃ ～ +85℃)

dB/km@1310nm，1550nm, 1625 nm
≤ 0.05
≤ 0.05

Wet and heat aging (+85±2℃, 85%RH，30 days) dB/km@1310nm，
≤ 0.05
≤ 0.05

 
1550nm, 1625 nm
 
 

High temperature aging(85±2℃，30 days ) dB/km @1310nm，1550

nm, 1625 nm
≤ 0.05
≤ 0.05

Additional attenuation of flooding (23±2℃，30 days ) dB/km

@1310nm，1550nm, 1625 nm
≤ 0.05
≤ 0.05