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What is the GYXTW fiber optic cable?

Author: James Xu      Publish Time: 18-09-2018      Origin: https://www.zion-communication.com/


GYXTW form of fiber optic cable is one that has an outer tube structure laid in the air, most suitable for outdoor environments of overhead application. It conforms to the concept of design of central tube cable, which is also known as loose tube cable.

 

Fiber Type: GYXTW

Application: Overhead laying

Fiber Count: 1–12 fibers

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GYXTW(Central Tube Single Jacket Armored Cable)


 Structural Features

There is a central loose tube that is filled with a gel that is resistant to water in order to provide the best possible protection for the fiber. 

Steel-Polyethylene Bonded Sheath: This quality augments the cable strength and moisture-resistant nature. 

In the case of the Metal Reinforcing Members, there are two wires placed in parallel on either side of the cable so as to contribute their excellent strength. 

At the outermost layer is commonly the PSP (Polyethylene-coated Steel Tape) Armor, adding moisture-proofing qualities and resilience from crush. 

The outer sheath is made of polyethylene (PE), and it can withstand harsh outdoor conditions.



 Product Description

Optical Fibers (250μm) are encased within a high-modulus plastic tube that is in a loose state, ensuring flexibility as well as protection from mechanical stress. 

The tube is totally packed with a particular type of compound that does not allow water to permeate through it. 

PSP (Polyethylene Steel Tape) is used to encircle the tube in a longitudinal direction for reinforcement and protection. 

Water-retaining material is then applied in between the PSP and the tube to retain compactness and water tightness. 

Two steel wires in parallel have been used in cable sides to incorporate high strength and tensile. 

In the final stage of this process, the cable will be covered with a strong sheath of polyethylene (PE) to make it more durable. 


 Key Features

Excellent mechanical performance as well as temperature characteristics. 

The cover has a hydrolysis-resistant high-strength tube that favors team work. 

For optimum water-blocking, a specially engineered filling compound is used. 

Crush resistance is high; however, the material is flexible too. 

Superior moisture-proofing is achieved using the PSP armor. 

The cable has double parallel steel wire embedded, hence there are high tensile strengths. 

The cable has a small diameter and a lightweight design, which allows for quick and convenient installation. 

The production of the item is done per the sales code with the delivery of the product in long continuous lengths.



 Fibre Colours

No.

1

2

3

4

5

6

Color

Blue

Orange

Green

Brown

Gray

White

No.

7

8

9

10

11

12

Color

Red

Black

Yellow

Violet

Pink

Aqua


 

 Loose Tube Colours

No.

1

2

3

4

5

6

Color

Blue

Orange

Green

Brown

Gray

White

No.

7

8

9

10

11

12

Color

Red

Black

Yellow

Violet

Pink

Aqua



 Fiber optic cable uses : The properties of single mode optical fiber (ITU-T Rec. G.652.D) 

Item

Specification

Fiber type

Single mode

Fiber material

Doped silica

Attenuation coefficient


@ 1310 nm

£ 0.35 dB/km

@ 1383 nm

£ 0.32 dB/km

@ 1550 nm

£ 0.21 dB/km

@ 1625 nm

£ 0.24 dB/km

Point discontinuity

£ 0.05 dB

Cable cut-off wavelength

£ 1260 nm

Zero-dispersion wavelength

1300 ~ 1324 nm

Zero-dispersion slope

£ 0.092 ps/(nm2.km)

Chromatic dispersion

£3.5 ps/(nm. km)

@ 1288 ~ 1339 nm

£5.3 ps/(nm. km)

@ 1271 ~ 1360 nm

£18 ps/(nm. km)

@ 1550 nm

£22 ps/(nm. km)

@ 1625 nm


PMDQ (Quadrature average*)

£0.2 ps/km1/2

Mode field diameter @ 1310 nm

9.2±0.4 um

Core / Clad concentricity error

£ 0.5 um

Cladding diameter

125.0 ± 0.7 um

Cladding non-circularity

£1.0%

Primary coating diameter

245 ± 10 um

Proof test level

100 kpsi (=0.69 Gpa), 1%

Temperature dependence

£ 0.1 dB/km

0oC~ +70oC @ 1310 & 1550nm

 

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James Zion



James is a technical manager and associate at Zion Communication. 

Specializes in Optical Fiber communications,  FTTH Solutions, 

Fiber optic cables,  ADSS cable, and ODN networks.

james@zion-communication.com

+86 13777460328





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