EPFU Multimode – OM1, OM3 & OM4

The fiber optic EPFU (Enhanced Performance Fiber Units) cable is a very thin fiber optic cable specially developed for blown fiber applications. For protection, the fibers are encapsulated in a layer of acrylic. Surrounding this is a harder jacket that provides protection against impact from outside. Finally, there is a ‘low-friction’ layer around this to promote blowing distances. The EPFU cables are usually blown over distances of up to 1000 meters.

EPFU is supplied in pans of 2 kilometers as standard, but can be supplied in shorter or longer lengths on request. In addition, variants with different fiber numbers are possible. The EPFU is supplied in a sturdy pan, so that it can be transported without damage.

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Description

Specification

Package & Shipping

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EPFU G657A1 is a cable with a very small diameter for blown fiber applications in micro-duct. The fibers are coated with a soft acrylic protective layer. A patented outer jacket with groove design ensures low friction and best blowing performance.

Cable Section Design

Feature

Fiber type 250um G657A1
Inner layer of resin
Low friction
Halogen-free outer sheath
2-12 Fibers

Technical Characteristics

Fiber count	4/12
Outer diameter (mm)	1.65±0.03
Weight (G/M)	2.2
Min bend radius (mm)	80
Mantle color	Yellow

Mechanical test

test	standard	parameters	criteria
Traction	IEC 60794-1-2-E1	Charge: 1×W	Fiber load ≤0.4% at MAX extra attenuation ≤0.05dB fiber load ≤0.05% after test
Bowing	IEC 60794-1-2-E11A	Ø40mm×3turns 5 cycles at 20°C	Fiber load ≤0.05dB, after test
Compression	IEC 60794-1-2-E3	100N, 60s	Fiber load ≤0.05dB, after test

Environmental test

test	standard	parameters	criteria
Temperature fluctuation	IEC 60794-1-2-F1	-30°C, +60°C, (2 cycles)	Absolute attenuation ≤0.5dB/km, during test Absolute attenuation ≤0.1dB/km, after test
Immersion	IEC 60794-5	1000 hours in water, 18°C ~ 22°C	(Test after temp. fluct.) ≤0.07dB/km change compared to starting value
Water vapor/heat cycle	IEC 60068-2-38	25°C, 65°C, 25°C, 65°C, 25°C, -10°C, 25°C	Absolute attenuation ≤0.5dB/km, during test Absolute attenuation ≤0.1dB/km, after test

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Cable Section Design

Feature

Fiber type 250um G657A1
Inner layer of resin
Low friction
Halogen-free outer sheath
2-12 Fibers

Technical Characteristics

Fiber count	4/12
Outer diameter (mm)	1.65±0.03
Weight (G/M)	2.2
Min bend radius (mm)	80
Mantle color	Yellow

Mechanical test

test	standard	parameters	criteria
Traction	IEC 60794-1-2-E1	Charge: 1×W	Fiber load ≤0.4% at MAX extra attenuation ≤0.05dB fiber load ≤0.05% after test
Bowing	IEC 60794-1-2-E11A	Ø40mm×3turns 5 cycles at 20°C	Fiber load ≤0.05dB, after test
Compression	IEC 60794-1-2-E3	100N, 60s	Fiber load ≤0.05dB, after test

Environmental test

test	standard	parameters	criteria
Temperature fluctuation	IEC 60794-1-2-F1	-30°C, +60°C, (2 cycles)	Absolute attenuation ≤0.5dB/km, during test Absolute attenuation ≤0.1dB/km, after test
Immersion	IEC 60794-5	1000 hours in water, 18°C ~ 22°C	(Test after temp. fluct.) ≤0.07dB/km change compared to starting value
Water vapor/heat cycle	IEC 60068-2-38	25°C, 65°C, 25°C, 65°C, 25°C, -10°C, 25°C	Absolute attenuation ≤0.5dB/km, during test Absolute attenuation ≤0.1dB/km, after test

Packing and Marking

Each single length of cable shall be reeled on Fumigated Wooden Drum
Covered by plastic buffer sheet
Sealed by strong wooden battens
At least 1 m of inside end of cable will be reserved for testing.
Drum length: Standard drum length is 3，000m±2%; as required
5.2 Drum Marking(can according to the requirement in the technical specification) Manufacturer name;
Manufacturing year and month Roll—direction arrow;
Drum length; Gross/net weight;

Packaging and Shipping: