What is the GYTA fiber optic cable?
Publish Time: 2018-09-18 Origin: https://www.zion-communication.com/
GYTA
Structural features：Stranded Loose Tube Cable GYTA
Optical fiber applications place: Overhead laying,DUCT
Fiber optic cable types：GYTA
Fiber Numbers:1-144 fibers
Recommended index: 5 stars
Outdoor communication, metal reinforcement, center tube, full fill, steel-polyethylene bonded sheath cable
Description
The fibers, 250μm, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. A steel wire, sometimes sheathed with polyethylene (PE) for cable with high fi ber count, locates in the center of core as a metallic strength member. Tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The PSP is longitudinally applied over the cable core, witch is filled with the filling compound to protect it from water ingress. Then, the cable is completed with a PE sheath.
Characteristics
▶ Good mechanical and temperature performance.
▶ High strength loose tube that is hydrolysis resistant.
▶ Special tube filling compound ensure a critical protection of fiber.
▶ Special designed compact structure is good at preventing loose tube from shrinking.
▶ Crush resistance and flexibility.
▶ PE sheath protects cable from ultraviolet radiation
▶ The following measures are taken to ensure the cable watertight:
▶ Steel wire used as the central strength member
▶ Loose tube filling compound
▶ 100% cable core filling
▶ PSP enhancing moisture-proof
▶ Application:duct/aerial/direct buride
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 @ 1383 nm @ 1550 nm @ 1625 nm |
£ 0.35 dB/km £ 0.32 dB/km £ 0.21 dB/km £ 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 @ 1288 ~ 1339 nm @ 1271 ~ 1360 nm @ 1550 nm @ 1625 nm | £3.5 ps/(nm. km) £5.3 ps/(nm. km) £18 ps/(nm. km) £22 ps/(nm. km) |
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 0oC~ +70oC @ 1310 & 1550nm | £ 0.1 dB/km |
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