Description
1F 5.0mm SM FTTH Drop cable-Double Sheath HDPE-High Tensile cable use 2.0mm OD sub cable as optical communication medium, the Sub cable is wrapped with a layer of aramid yarn as strength member units, Two parallel FRP wires are placed at both sides of the cable core while a HDPE sheath is extruded over it.
Cable structure and parameter
| Items | Contents | Unit | Value |
| Optical Fiber | Model number | / | G657A2 |
| Number | / | 1 | |
| Tight buffer | Color | / | Blue |
| Material | / | LSZH | |
| Diameter | mm | 0.9±0.05 | |
| Sub-cable | Strength member | / | Aramid yarn |
| Sheath color | / | White | |
| Sheath material | / | LSZH | |
| Diameter | mm | 2.0±0.1 | |
| Outer Sheath | Strength member | / | Aramid yarn+FRPs |
| Sheath color | / | Black | |
| Sheath material | / | HDPE | |
| Diameter | mm | 5.0±0.3 | |
| Cable Weight | KG/KM | 22 | |
CABLE MECHANICAL PARAMETERS
| Item | Contents | Value |
| Tensile load | Short term | 800N fiber strain≤0.33% |
| Long term | 400N | |
| Crush resistance | Short term | 1000 |
| Long term | 300 | |
| Min. bending radius | Installation | 30 x cable diameter |
| Operation | 15 x cable diameter |
ENVIRONMENTAL PARAMETERS
| Item | Standard | Specification |
| Environmental | IEC-60794-1-22-F5B | No water penetration |
| IEC-60794-1-22-F9 | ≤0.1dB/km max. attenuation change allowed | |
| Application temperature range | Application temperature range℃ | Operation: – 10℃ ~ +70℃
Installation: -40℃ ~ +70℃ Storage/transportation: – 40℃ ~ +70℃ |
Optical fiber type and properties
| Parameter | Conditions | Units | Value | |||
| G652D | G657A1 | G657A2 | G657B3 | |||
| Optical Specification | ||||||
| Attenuation | 1310 nm | dB/km | ≤0.350 | ≤0.350 | ≤0.350 | ≤0.350 |
| 1383 nm | dB/km | ≤0.330 | ≤0.350 | ≤0.350 | ≤0.350 | |
| 1550 nm | dB/km | ≤0.210 | ≤0.210 | ≤0.210 | ≤0.210 | |
| 1625 nm | dB/km | ≤0.240 | ≤0.230 | ≤0.230 | ≤0.230 | |
| Attenuation vs. Wavelength | 1310 nm VS. 1285-1330 nm | dB/km | ≤0.04 | ≤0.04 | ≤0.05 | ≤0.03 |
| 1550 nm VS. 1525-1575 nm | dB/km | ≤0.03 | ≤0.03 | ≤0.04 | ≤0.02 | |
| 1550 nm VS. 1480-1580 nm | dB/km | ≤0.04 | – | – | – | |
| Zero Dispersion Wavelength | \ | nm | 1300-1324 | 1300-1324 | 1300-1324 | 1300-1324 |
| Zero Dispersion Slope | ps/(nm2·km) | 0.073-0.092 | 0.073-0.092 | 0.073-0.092 | ≤0.092 | |
| Dispersion | 1550 nm | ps/(nm·km) | 13.3-18.6 | 13.3-18.6 | 13.3-18.6 | |
| 1625 nm | ps/(nm·km) | 17.2-23.7 | 17.2-23.7 | 17.2-23.7 | ||
| Polarization Mode Dispersion (PMD) | ps/√km | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | |
| Cut-off Wavelength λcc | – | nm | ≤1260 | ≤1260 | ≤1260 | ≤1260 |
| Mode Field Diameter (MFD) | 1310 nm | μm | 9.2±0.4 | 9.2±0.4 | 8.6±0.4 | 8.6±0.4 |
| 1550 nm | μm | 10.4±0.5 | 10.4±0.5 | 9.6±0.5 | 9.6±0.5 | |
| Attenuation Discontinuity | 1310 nm | dB | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 |
| 1550 nm | dB | ≤0.03 | ≤0.03 | ≤0.03 | ≤0.03 | |
| Bidirectional Attenuation | 1310 nm | dB/km | ≤0.04 | ≤0.05 | ||
| 1550 nm | dB/km | ≤0.04 | ≤0.05 | |||
| Geometrical | ||||||
| Cladding Diameter | μm | 125±0.7 | 125±0.7 | 125±0.7 | 125±0.7 | |
| Cladding Non-Circularity | % | ≤1.0 | ≤1.0 | ≤0.8 | ≤0.7 | |
| Core/Cladding Concentricity Error | μm | ≤0.6 | ≤0.5 | ≤0.5 | ≤0.5 | |
| Coating Diameter (Uncolored) | μm | 242±7 (standard) | ||||
| μm | 200±10 (optional) | |||||
| Coating/Cladding Concentricity Error | μm | ≤12 | ≤12 | ≤12 | ≤12 | |
| Curl | m | ≥4 | ≥4 | ≥4 | ≥4 | |
| Environmental (1550nm, 1625nm) | ||||||
| Temperature Cycling | -60℃ to +85℃ | dB/km | ≤0.03 | ≤0.05 | ≤0.05 | ≤0.05 |
| High Temperature &
High Humidity |
85℃, 85% RH, 30days | dB/km | ≤0.03 | ≤0.05 | ≤0.05 | ≤0.05 |
| Water Immersion | 23℃, 30days | dB/km | ≤0.03 | ≤0.05 | ≤0.05 | ≤0.05 |
| High Temperature Aging | 85℃, 30days | dB/km | ≤0.03 | ≤0.05 | ≤0.05 | ≤0.05 |





