Description
In OMC’s 4-144F Stranded Loose Tube Double Armored&Sheath (GYTA33) PE cable, A Phosphating steel wire is located in the center of core as a metallic strength member. single-mode/multimode Fiber are positioned in the loose tube, which is made of PBT materials and filled with filling compound. The tubes (and fillers) are stranded around the strength member into a compact and circular core. An aluminum Polyethylene Laminate (APL) is applied around the cable core. Then the APL is covered with a thin polyethylene (PE) inner sheath, which is filled with jelly to protect it from water ingress. Then a Galvanized steel wire armor is applied, the cable is completed with a PE outer sheath.
Standard color of fiber and tube
The color code of the individual fibers, shall be in accordance with the table as below
| 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 |
Tube color code for 12~144 fibers:
| 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 |
Note: # means single black stripe; * means single white stripe.
Cable Structure parameter
| Fiber count | Structure | Fibers per tube | Loose tube diameter(mm) | CSM diameter/pad diameter(mm) | Nominal Thickness of Inner jacket(mm) | Nominal Thickness of outer jacket(mm) | Cable diameter (mm) | Cable weight
(kg/km) |
| 4 | 1+5 | 4 | 1.7±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.0±0.5 | 269 |
| 6 | 1+5 | 6 | 1.7±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.0±0.5 | 269 |
| 8 | 1+5 | 4 | 1.7±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.0±0.5 | 270 |
| 12 | 1+5 | 6 | 1.7±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.0±0.5 | 270 |
| 18 | 1+5 | 6 | 1.7±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.0±0.5 | 270 |
| 24 | 1+5 | 6 | 1.7±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.0±0.5 | 271 |
| 30 | 1+5 | 6 | 1.7±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.0±0.5 | 271 |
| 36 | 1+6 | 6 | 1.7±0.1 | 1.8/1.8 | 0.9 | 1.8 | 13.5±0.5 | 292 |
| 48 | 1+5 | 12 | 2.0±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.7±0.5 | 295 |
| 60 | 1+5 | 12 | 2.0±0.1 | 1.4/1.4 | 0.9 | 1.8 | 13.7±0.5 | 296 |
| 72 | 1+6 | 12 | 2.0±0.1 | 2.0/2.0 | 0.9 | 1.8 | 14.4±0.5 | 335 |
| 84 | 1+7 | 12 | 2.0±0.1 | 1.8/2.9 | 0.9 | 1.8 | 15.3±0.5 | 365 |
| 96 | 1+8 | 12 | 2.0±0.1 | 1.8/3.5 | 0.9 | 1.8 | 16.0±0.5 | 389 |
| 108 | 1+9 | 12 | 2.0±0.1 | 1.8/4.2 | 0.9 | 1.8 | 16.7±0.5 | 421 |
| 120 | 1+10 | 12 | 2.0±0.1 | 1.8/4.9 | 0.9 | 1.8 | 17.4±0.5 | 448 |
| 132 | 1+11 | 12 | 2.0±0.1 | 1.8/5.5 | 0.9 | 1.8 | 18.6±0.5 | 563 |
| 144 | 1+12 | 12 | 2.0±0.1 | 1.8/6.3 | 0.9 | 1.8 | 19.4±0.5 | 601 |
Cable Material parameter
| Item | Parameters | |
| Loose tube | Material | PBT |
| Color | Full color spectrum | |
| Filler | Material | PE |
| Color | Black | |
| CSM | Material | Phosphating steel wire |
| Armoured | Material | Plastic coated aluminum strip |
| Steel wire Armoured | Material | Galvanized steel wire |
| Inner jacket | Material | PE |
| Color | Black | |
| Outer jacket | Material | PE |
| Color | Black | |
Mechanical & Environmental Performance
| Item | Contents | Value |
| Max. tensile load | Short term | 10000N fiber strain≤0.6% |
| Long term | 5000N | |
| Max. crush resistance | Short term | 5000N/100mm |
| Long term | 3000N/100mm | |
| Min. bending radius | Installation | 25 x cable diameter |
| Operation | 12.5 x cable diameter | |
| Temperature range | Operation | -40℃ ~ +70℃ |
| Installation | -20℃ ~ +60℃ | |
| Storage/transportation | -40℃ ~ +70℃ |
Standards： IEC 60794-1
Optical fiber technical parameters
| Fiber style | Unit | SM 9/125 | MM 50/125 | MM 62.5/125 | |
| Condition | nm | 1310/1550 | 850/1300 | 850/1300 | |
| Attenuation | dB/km | ≤0.34/0.2 | ≤3.0/1.0 | ≤3.0/1.0 | |
| Dispersion | 1310nm | Ps/(nm*km) | ≤18 | ….. | ….. |
| 1550nm | Ps/(nm*km) | ≤22 | ….. | ….. | |
| Bandwidth | 850nm | MHZ. KM | ….. | ≧400 | ≧160 |
| 1300nm | MHZ. KM | ….. | ≧800 | ≧500 | |
| Zero dispersion wavelength | nm | ≧1302,
≤1322 |
….. | ….. | |
| Zero dispersion slope | nm | ≤0.091 | ….. | ….. | |
| PMD Maximum Individual Fiber | ≤0.2 | ….. | ….. | ||
| PMD Design Link Value | Ps(nm2*km) | ≤0.08 | ….. | ….. | |
| Fiber cutoff wavelength λc | nm | ≧1180,
≤1330 |
….. | ….. | |
| Cable cutoff wavelength λcc | nm | ≤1260 | ….. | ….. | |
| MFD | 1310nm | um | 9.2±0.4 | ….. | ….. |
| 1550nm | um | 10.4±0.8 | ….. | ….. | |
| Numerical Aperture(NA) | …… | 0.200±0.015 | 0.275±0.015 | ||
| Step(mean of bidirectional measurement) | dB | ≤0.05 | ≤0.10 | ≤0.10 | |
| Irregularities over fiber length and point discontinuity | dB | ≤0.05 | ≤0.10 | ≤0.10 | |
| Difference backscatter coefficient | dB/km | ≤0.03 | ≤0.08 | ≤0.10 | |
| Attenuation uniformity | dB/km | ≤0.01 | ……. | ……. | |
| Core diameter | um | …… | 50±1.0 | 62.5±2.5 | |
| Cladding diameter | um | 125.0±0.1 | 125.0±0.1 | 125.0±0.1 | |
| Cladding non-circularity | % | ≤1.0 | ≤1.0 | ≤1.0 | |
| Coating diameter | um | 242±7 | 242±7 | 242±7 | |
| Coating/chaffinch concentrically error | um | ≤12.0 | ≤12.0 | ≤12.0 | |
| Coating non circularity | % | ≤6.0 | ≤6.0 | ≤6.0 | |
| Core/cladding concentricity error | um | ≤0.6 | ≤1.5 | ≤1.5 | |
| Curl(radius) | um | ≤4 | ….. | ….. | |
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