The fibers, 250μm, are positioned in a
loose tube made of a high modulus
plastic. The tubes are filled with a water-
resistant filling compound. A Fiber Reinforced Plastic (FRP) is located in the center
of core as a non-metallic strength member.
The tubes (and fillers) are stranded
around the strength member into a
compact and circular core. An aluminum
Polyethylene Laminate (APL) is applied
around the cable core. Then the cable
core is covered with a thin polyethylene
(PE) inner sheath, which is filled with
jelly to protect it from water ingress.
After a corrugated steel tape armor is
applied, the cable is completed with a
PE outer sheath.
Optical Characteristics
|
|
G.652
|
G.655
|
50/125μm
|
62.5/125μm
|
|
Attenuation
(+20℃)
|
@850nm
|
|
|
≤3.0dB/km
|
≤3.0dB/km
|
|
@1300nm
|
|
|
≤1.0dB/km
|
≤1.0dB/km
|
|
@1310nm
|
≤0.36dB/km
|
≤0.40dB/km
|
|
|
|
@1550nm
|
≤0.22dB/km
|
≤0.23dB/km
|
|
|
|
Bandwidth (Class A)
|
@850
|
|
|
≥500MHZ·km
|
≥200MHZ·km
|
|
@1300
|
|
|
≥1000MHZ·km
|
≥600MHZ·km
|
|
Numerical Aperture
|
|
|
|
0.200±0.015NA
|
0.275±0.015NA
|
|
Cable Cut-off Wavelength λcc
|
|
≤1260nm
|
≤1480nm
|
|
|
