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) locates 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. Then
the cable core is covered with a thin
polyethylene (PE) inner sheath, which is
filled with jelly to protect it from water
ingress. A layer of water-blocking material
is applied around the cable core to
prevent water ingress all the same. 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
|
≤1450nm
|
|
Storage/Operating Temperature : -40℃ to + 70℃
