Loose - tube optical fiber cable 4Fo

Technical parameters

Unit

Specifications

Measurement method

Attenuation coefficient

dB/km

At 1550nm

≤0.3

IEC 60793-1-40

At 1490nm

≤0.3

At 1310nm

≤0.4

Chromatic dispersion index

ps/(nm.km)

≤3.5 at 1285nm to 1330nm,

≤18 at 1550nm

IEC 60793-1-42

PMD coefficient

Ps/km1/2

≤ 0.2

IEC 60793-1-42

λ₀

Nm

1300 ≤ l0 ≤1324

IEC 60793-1-42

Chromatic dispersion coefficient

ps/(nm².km)

£ 0.092

IEC 60793-1-40

Cable cut- off wavelength

Nm

lcc≤1260

IEC 60793-1-44

Macrobending loss (d=30mm x 100 rounds)

dB

£ 0.1dB at 1625nm

IEC 60793-1-47

Mode field diameter

µm

9.2±0.4 at 1310nm

IEC 60793-1-45

Mode field concentricity erro

µm

£ 0.5

IEC 60793-1-20

Coating diameter

µm

125 ± 0.7

IEC 60793-1-20

Cladding non-circularity

%

£ 1.0

IEC 60793-1-20

Cladding diameter

µm

245mm ± 10mm

IEC 60793-1-21

Attenuation point Local discontinuity

dB

≤ 0.1

IEC 60793-1-40

Proof stress

Gpa

≥ 0.69

IEC 60793-1-30

Primary cladding is made of UV – resistant material (Acrylate), minimizing environmental effects

Primary cladding has nominal diameter of 245mm ± 10mm before coloring and 250mm ± 10mm after coloring, using permanent ink.

During welding, primary cladding can easily be separated from fiber without using chemicals and affecting the fiber