G657A2 Technical parameters
Item
Standard
Unit
Optical attenuation
1310nm
≤0.35
dB/km
1383nm
≤0.33
dB/km
1550nm
≤0.21
dB/km
1625nm
≤0.24
dB/km
Attenuation wavelength characteristic 1285nm～1330nm VS 1310nm
1360nm～1410nm VS 1383nm
1225nm～1575nm VS 1550nm
≤0.03
≤0.05
≤0.02
dB/km
Dispersion
1288nm～1339nm
|D|≤3.4
ps/(nm·km)
1271nm～1360nm
|D|≤5.3
ps/(nm·km)
1550nm
≤17.5
ps/(nm·km)
Zero-dispersion wavelength
1300～1324
nm
Zero-dispersion slope
≤0.092
ps/(nm2•km)
PMD
PMD (single fiber)
≤0.15
ps/√km
PMDQ (links)
≤0.08
ps/√km
Cladding diameter
125±0.7
μm
Cladding non-circularity
≤0.8
%
Core-cladding concentricity error
≤0.5
μm
Coating diameter
242±7
μm
Cladding/coating concentricity error
≤10.0
μm
Cut-off wavelength
1.18～1.33
μm
Macrobend attenuation
Radius
15
10
7.5
mm
Cycle number
10
1
1
1550nm
0.03
0.10
0.5
dB
1625nm
0.1
0.2
1.0
Bending radius
≥5
m
Tensile strength
Wilbur probability level
≥3.14 (15%)
Gpa
≥3.80 (50%)
Dynamic fatigue parameters
≥20
nd
Fiber proof-tested
1.3≤Fmin-max ≤8.9
N
1.0≤Fave≤5.0
N
Temperature cycling test: (-60～85,3 cycles)
Attenuation @1310nm & @1550nm
≤0.05
dB/km
Watersoak test: (23 for 30 days)
≤0.05
dB/km
Damp heat test: (85,85 for 30 days)
≤0.05
dB/km
thermal aging test
(85 for 30 days)
≤0.05
dB/km
Warm water test
(60 for 15 days)
≤0.05
dB/km