Description
When entering a building, the outer sheath of the cable is simply removed to expose the inner flame retardant Jacket. The operation is swift and enables easy installation from an outdoor environment to an indoor environment without the need of two different cables and a cable joint.
The drop cable is primarily intended for direct installation, i.e. installation with staples or clips or routing inside cable raceways and buildings. This installation technique puts extra tough requirements on the cables in terms of bend performance, crush resistance and other mechanical parameters.
The LSZH Dual Jacket Cable is a fibre optic drop cable for indoor/outdoor FTTx applications. The unique dual jacket design enables the cable to be installed outdoors as well as short sections indoors. The cable has dual Low Smoke flame retardant sheaths, the outer is a UV-resistant black variant.
The drop cable has extremely good bend performance due to the G657 fibre and the inbuilt bend restriction of the cable design. The cable will by itself control the minimum bend radius and permit kinking.
Double Sheath Drop Cable Features
- High strength aramid yarn strength member ensures high tensile strength and long term stability in transmission
- Small outer diameter,lightweight,flame-retardant,easy to strip,low attenuation,physically soft
- Direct splicing between tight buffer cables and need no tie-in box or pigtail
- Suitable for installation,operation,and convenient for maintenance
Double Sheath Drop Cable Application
- Building to building connecting cable
- Indoor soft cable along the wall,ceiling,between layers and in conduits
- Connect pigtails, fast connectors and patch cords for communication equipment
Double Sheath Drop Cable Technical Parameters
| Model | GJYFJH | |
| Fiber count | 1 core | |
| Outer diameter OD (mm) | 4.5± 0.2 | |
| Cable Sheath | Material | UV LSZH |
| Thickness(mm) | 0.9±0.1 | |
| OD(mm) | 3.0±0.1 | |
| Inner cable | Material | LSZH |
| Thickness(mm) | 0.5±0.05 | |
| OD(mm) | 0.85±0.05 | |
| Buffer | Material | LSZH |
| Nominal weigh t(kg/km) | 24 | |
| Max.tensile Strength(N) | Long-term | 120 |
| Short-term | 240 | |
| Min.Bending Radius(mm) | Static | 10D |
| Dynamic | 20D | |
| Max.Crush Resistance(N/100mm) | Long-term | 300 |
| Short-term | 1000 | |
| Strength Members | Aramid yarn | |
| Environmental Protection | RoHS COMPLIANT | |
| Storage or transportation | -20~70℃ | |
| Operation temperature | -20~60℃ | |
Optical Characteristics G657A2
| Characteristics | Conditions | Specified Values | Units |
| Geometrical characteristics | |||
| Cladding diameter | 125.0±0.7 | µm | |
| Cladding non-circularity | ≤0.7 | % | |
| Coating diameter | 245±5 | µm | |
| Coating/cladding concentricity error | ≤12 | µm | |
| Coating non-circularity | ≤6.0 | % | |
| Core/cladding concentricity error | ≤0.5 | µm | |
| Curl | ≥4 | m | |
| Optical characteristics | |||
| 1310nm | ≤0.35 | dB/km | |
| 1383nm | ≤0.35 | dB/km | |
| 1550nm | ≤0.21 | dB/km | |
| Attenuation | 1625nm | ≤0.23 | dB/km |
| Attenuation vs. Wavelength
max. A difference |
1525~1575nm | ≤0.02 | MHz*km |
| 1285~1330nm | ≤0.03 | MHz*km | |
| Zero dispersion wavelength | 1300~1324 | nm | |
| Zero dispersion slope | ≤0.092 | ps/(nm2*km) | |
| Polarization mode dispersion | |||
| PMD maximum individual fibre | ≤0.1 | ps/km1/2 | |
| PMD design link value | ≤0.06 | ps/km1/2 | |
| Typical force | 0.04 | ps/km1/2 | |
| Cable cut off wavelength | ≤1260 | nm | |
| Mode field diameter | 1550nm | 9.3~10.3 | µm |
| 1310nm | 8.4~9.3 | µm | |
| Group index of refraction | 1550nm | 1.467 | |
| 1310nm | 1.466 | ||
| Environmental characteristics | 1310nm, 1550nm&1625nm | ||
| Temperature cycling | -60℃ to +85℃ | ≤0.05 | dB/km |
| Temperature-humidity cycling | -10℃ to +85℃,
4% to 98% RH |
≤0.05 | dB/km |
| Water immersion | 23℃, 30 days | ≤0.05 | dB/km |
| Dry heat | 85℃, 30 days | ≤0.05 | dB/km |
| Damp heat | 85℃, 85%RH, 30 days | ≤0.05 | dB/km |
| Mechanical specification | |||
| Proof test | ≥9.0 | N | |
| ≥1.0 | % | ||
| ≥100 | kpsi | ||
| Macro bending induced loss | |||
| 1Turns @5mm Radius | 1550nm | ≤0.15 | dB |
| 1Turns @5mm Radius | 1625mm | ≤0.45 | dB |
| 1Turns @7.5mm Radius | 1550nm | ≤0.08 | dB |
| 1Turns @7.5mm Radius | 1625mm | ≤0.25 | dB |
| 1Turns @10mm Radius | 1550nm | ≤0.03 | dB |
| 1Turns @10mm Radius | 1625mm | ≤0.10 | dB |
| Coating strip force | Typical average force | 1.5 | N |
| Peak force | ≥1.3 ≤8.9 | N | |
| Dynamic stress corrosion susceptibility parameter | 27 | ||
