What is the GYTA fiber optic cable?
Author: James Xu Publish Time: 18-09-2018 Origin: https://www.zion-communication.com/
GYTA fiber optic cable is a stranded loose tube outdoor cable widely used for overhead, duct, and even direct burial applications. It combines strong mechanical performance with superior water resistance.
Fiber Type: GYTA
Application: Overhead laying, Duct, Direct Burial
Fiber Count: 1–144 fibers
Recommended Index: ⭐⭐⭐⭐⭐ (5 stars)
■ Structural Features
Multiple loose tubes stranded around a central strength member (steel wire).
Full cable core filling with water-blocking gel for complete moisture protection.
Steel-Polyethylene Bonded Sheath (PSP): Offers excellent moisture and crush resistance.
Outer layer is a polyethylene (PE) sheath, protecting the cable from environmental stress including UV radiation.
■ Product Description
Optical fibers (250μm) are housed in high-modulus plastic loose tubes.
The loose tubes are filled with water-resistant filling compound.
A steel wire (sometimes PE-sheathed for high fiber counts) is used as the central strength member.
Tubes and fillers are stranded around the central member to form a compact and circular cable core.
The entire core is longitudinally wrapped with PSP and filled to protect against water ingress.
Finished with a tough polyethylene (PE) sheath for added protection.
■ Key Features
Excellent mechanical performance and temperature stability.
High-strength, hydrolysis-resistant loose tubes.
Special filling compound offers critical fiber protection.
Compact structure design prevents tube shrinkage.
High crush resistance and good flexibility.
PE sheath protects against ultraviolet (UV) radiation.
Full waterproof structure using:
Central steel wire strength member
Tube filling compound
100% cable core filling
PSP moisture-proof barrier
■ Applications
Overhead installation
Duct installation
Direct burial installation
■ 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 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
