Indoor Fiber Optic Drop Cable GYFJU

Characteristic

condition

data

unit

Optical properties

Attenuation

1310nm

1383nm

1490nm

1550nm

1625nm

≤0.35

≤0.35

≤0.23

≤0.22

≤0.23

dB/km

dB/km

dB/km

dB/km

dB/km

Relative wavelength attenuation

@1310nm

@1550nm

1285～1330nm

1525～1575nm

≤0.05

≤0.05

dB/km

dB/km

Dispersion in the wavelength range of

1285～1340nm

1550nm

≤3.5

≤18

ps/(nm.km)

ps/(nm.km)

Zero dispersion wavelength

1300～1324

nm

A zero-dispersion slope

≤0.092

ps/(nm2.km)

Polarization Mode Dispersion Coefficient PMD

Single fiber maximum

Fiber link value (M=20, Q=0.01%)

Typical value

≤0.2

≤0.1

0.04

ps/

ps/

ps/

Cable cut-off wavelength（λcc）

≤1260

nm

Mode field diameter （MFD）

1310nm

1550nm

8.8±0.4

9.8±0.5

μm

μm

Attenuation discontinuities

1310nm

1550nm

≤0.05

≤0.05

dB

dB

Geometric characteristics

Core diameter

125±0.7

μm

Cladding roundness

≤0.7

%

Coating diameter

245±5

μm

Coating / package concentricity error

≤12.0

μm

Core / package concentricity error

≤0.5

μm

The warpage (radius)

≥4

m

Environmental characteristics（1310nm、1550nm、1625nm）

Temperature additional attenuation

-60℃ ～+85℃

≤0.05

dB/km

Temperature-humidity cycle additional attenuation

-10℃ ～+85℃，98% Relative humidity

≤0.05

dB/km

Flooding additional attenuation

23℃，30 days

≤0.05

dB/km

Hot and humid additional attenuation

85℃& 85% Relative humidity，30 days

≤0.05

dB/km

Dry heat aging

85℃

≤0.05

dB/km

Mechanical properties

Screening tension

≥9.0

N

The macro bend Additional attenuation

10 CircleФ30mm

10 CircleФ30mm

1 CircleФ20mm

1 CircleФ20mm

1550nm

1625nm

1550nm

1625nm

≤0.025

≤1.0

≤0.75

≤1.5

dB

dB

dB

dB

Coating peeling force

Typical average

1.5

N

Dynamic fatigue parameters

≥20

Item

Test Method

Acceptance Condition

Tensile Strength

IEC 794-1-2-E1

- Load: Short term tension

- Length of cable: about 50m

- Fiber strain £ 0.36%

- Loss change £ 0.1 dB @1550 nm

- No fiber break and no sheath damage.

Crush Test

IEC 60794-1-2-E3

- Load: Short term crush

- Load time: 1min

- Loss change £ 0.05dB@1550nm

- No fiber break and no sheath damage.

Impact Test

IEC 60794-1-2-E4

- Points of impact: 3

- Times of per point: 1

- Impact energy: 5J

- Loss change £ 0.1dB@1550nm

- No fiber break and no sheath damage.

Temperature Cycling Test

YD/T901-2001-4.4.4.1

- Temperature step:

+20oC→-40oC→+70oC →+20oC

- Time per each step: 12 hrs

- Number of cycle: 2

- Loss change £ 0.05 dB/km@1550 nm

- No fiber break and no sheath damage.