What Is Unitube Light Armored Fiber Optic Cable GYXTW ?
Unitube Light Armored Fiber Optic Cable GYXTW positioned between CO and first DP in FTTX network. Used as mainline cable which environment is in Buried ,Aerial, under earth Pipes, Poles etc.
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. The tube is wrapped with a layer of PSP longitudinally. Between the PSP and the loose tube water-blocking material is applied to keep the cable compact and watertight. Two parallel steel wires are placed at the two sides of the steel tape. The cable is completed with a polyethylene (PE) sheath.
Product Detail:
- Product Name : Unitube Light-armored Cable – GYXTW
- Fibers Count : 2-12 Fibers
- Cable Diameter(mm) : 8.0
- Weight(Kg/km) : 75
- Maximum Tension(N) : 600/1500
| Optical cable model | Fiber number | Cable Diameter | cable weight kg/ km | Maximum Tension （N） | Maximum Crush Resistance（N/ per100cm） | Minimum Bending Ra- dius |
| GYXTW-2~12 | 2~12 | mm | 75 | 600/1500 | 1000/3000 | 10D/20D |
Standard color of fiber and tube
The color code of the tubes and the individual fibers, shall be in accordance with the table as below:
| No. | 1 | 2 | 3 | 4 | 5 | 6 |
| Color | Blue | Orange | Green | Brown | Slate | White |
| No. | 7 | 8 | 9 | 10 | 11 | 12 |
| Color | Red | Black | Yellow | Violet | Pink | Aqua |
Package: Standard Reel Length: 2000m; OEM Package is available Once request.
Characteristics:
- High tensile strength of stranded wires meet the requirement of self-supporting and reduce the installation cost.
- Good mechanical and temperature performance
- High strength loose tube that is hydrolysis resistant
- Special tube filling compound ensure a critical protection of fiber
- 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
Optical fiber technical parameters-SMF:
| Item | Unit | Specification |
| Attenuation | dB/km | 1310nm≤0.4 ； 1550nm≤0.3 |
| Dispersion | Ps/nm. km | 1285~1330nm≤3.5， 1550nm≤18.0 |
| Zero dispersion wavelength | Nm | 1300~1324 |
| Zero dispersion slope | Ps/nm. km | ≤0.095 |
| Fiber cutoff wavelength | Nm | ≤1260 |
| Mode field diameter | Um | 9.2±0.5 |
| Mode field concentricity | Um | ≤0.8 |
| Cladding diameter | um | 125±1.0 |
| Cladding non-circularity | % | ≤1.0 |
| Coating/cladding concentricity error | Um | ≤12.5 |
| Coating diameter | um | 245±10 |
| Bending, dependence induced attenuation | 1550nm, 1turns,32mm diameter 100rums,60mm diameter | ≤0.5 dB |
| Proof test | kpsi | ≥100 |
ITU recommendation G.657 specifies two classes of single-mode bend insensitive fiber patch ca- bles: G.657 A and G.657 B. Each category (A and B) is then divided into two sub-categories: G.657.A1, G.657.A2 and G.657.B1, G.657.B2. The minimum bend radius of G.657.A1 fibers is 10 mm, of the G.657.A2 and G.657.B1 fibers is 7.5 mm and of the G.657.B2 fibers is 5 mm. Among, ITU-T G.657.A1 and ITU-T G.657.A2 fibers are fully compliant with ITU-T G.652.D fibers.
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Unitube Light Armored Fiber Optic Cable GYXTW