Butterfly entry cable (GJYX(F)CH) for self-supporting access network
Product Description:
1. Reinforcement: steel wire
2. Reinforcing parts: FRP or KFRP or steel wire
3. Optical fiber
4. Outer sheath: black or white LSZH
The butterfly introduction cable for self-supporting access network (outdoor overhead lead-in) is made by placing the optical communication unit (optical fiber) in the center, placing two parallel non-metallic reinforcements (FRP or KFRP) or metal reinforcements on both sides, attaching a steel wire reinforcement element on the outside, and finally, extruding black or colored polyvinyl chloride (PVC) or low-smoke halogen-free materials (low-smoke, halogen-free, flame retardant) sheath.
Features and applications
● Simple structure, light weight and strong practicability;
● Unique groove design, easy to peel off, easy to connect, simplify installation and maintenance;
● A single steel wire is equipped with reinforcing elements to make the cable have good tensile performance;
● Outdoor overhead introduction.
Fiber characteristics
| G.652. D | G.657A2 | 50/125μm | 62.5/125μm |
attenuation | @850nm | - | - | ≤3.0dB/km | ≤3.0dB/km |
@1300nm | - | - | ≤1.0dB/km | ≤1.0dB/km |
@1310nm | ≤0.36dB/km | ≤0.36dB/km | - | - |
@1550nm | ≤0.22dB/km | ≤0.23dB/km | - | - |
bandwidth | @850nm | - | - | ≥500MHz·km | ≥200MHz·km |
@1300nm | - | - | ≥1000MHz·km | ≥600MHz·km |
The fiber optic cable is up to the wavelength |
| ≤1260nm | ≤1260nm | - | - |
Polarization mode dispersion | Single fiber | ≤0.20ps/√km | ≤0.20ps/√km | - | - |
Link value (M=20, Q=0.01%) | ≤0.10ps/√km | ≤0.10ps/√km | - | - |
Technical parameters
project | content | numeric value |
Number of fiber cores | 1 | 2 | 4 |
Reinforcements | material | KFRP/Steel Wire |
Enhancements | material | steel wire |
Outer sheath | Thickness mm | ≥0.3 |
Refer to the outer diameter | mm | （2.0*5.0）±0.1 | （2.0*5.0）±0.1 | （2.0*6.0）±0.1 |
Operating temperature range | ℃ | -40~+60 |
pulling force | Short-term/long-term N | 600/300 |
Squashed | Short-term/long-term N | 2200/1000 |
*Customers can customize according to their own requirements |
Key mechanical and environmental properties
project | Inspection standards | Prescribed value | request |
Stretch | IEC 60794-1-2-E1 | See technical data | Residual additional attenuation ≤ 0.03dB |
Squashed | IEC 60794-1-2-E3 | See technical data | Short-term downward flattening force is addedAttenuation ≤ 0.4dB |
impact | IEC 60794-1-2-E4 | Impact 1N, fall height 1m, at least 3Dot | Residual additional attenuation ≤ 0.4dB |
Repeated bending | IEC 60794-1-2-E6 | Load 20N 300 times | Residual additional attenuation ≤ 0.4dB |
Temperature cycling test | IEC 60794-1-2-F1 | -40℃ ~+60℃ | Additional attenuation ≤ 0.02dB |
Combustion performance | IEC 60332-1-2 | Flame retardant | It should be able to burn vertically through a single root |
Smoke density | The light transmittance is not less than 50%. |
Corrosive | When combusting, the gas pH ≤ 4.3, and the conductivity should be ≤ 10μs/mm |
* All fiber attenuation changes are monitored at 1550nm wavelength. |
Packing and delivery length
standard wooden discs;
Nominal delivery length: 1000m/2000m or according to customer requirements.
Ordering information
RHTX | GJX(F) | □CH-□□ 1 2 3 |
1 Optical Communication Unit: | Non-fiber/J-tight-sleeved fiber/D-fiber strip |
2 Number of fiber cores: | 1~4 |
3 Fiber Type: | A1a(50/125) / A1b(62.5/125)/B6a2(G657A2)/B1.3(G652D)
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