Description
2 Cores 2x3mm Butterfly flat FTTH drop cable uses butterfly flat structure. 2pcs of SM G657A1 or G657A2 optical fiber units are positioned in the center. Two parallel Fiber Reinforced Plastic (FRP) rods are placed diametrically opposite on either side of the fiber core. The strength member rods and fiber core are then encapsulated in a durable LSZH jacket to create a flat cable cross section and lend added protection to the cable core.
This FTTH Indoor Drop Cable is designed for in-home fiber installations.
Cable structure and parameter
| Item | Contents | Unit | Value |
| Optical Fiber | / | / | 2 |
| Strength member | Material | / | FRP |
| Diameter | mm | 0.5 | |
| Messenger wire | Material | / | / |
| Diameter | mm | / | |
| Outer jacket | Diameter | mm | 3.0(±0.1)*2.0(±0.1) mm |
| Material | / | LSZH | |
| Color | / | White | |
| Tensile performance | Short term | N | 100 |
| Long term | N | 50 | |
| Crush | Short term | N/100mm | 1000 |
| Long term | N/100mm | 500 | |
| Cable attenuation | dB/km | ≦ 0.4 at 1310nm, ≦ 0.3 at 1550nm | |
| Cable weight (Approx.) | kg/km | 8.4 | |
Note: sizes and values without tolerances are nominal values
Characteristic of Optical Cable
3.1 Min. bending radius (without messenger)
Static: 20mm
Dynamic: 40mm
3.2 Application temperature range
Operation: – 40℃ ~ +70℃
Installation: -10℃ ~ +60℃
Storage/transportation: – 40℃ ~ +70℃
Main mechanical & environmental performance test
| Item | Test Method | Acceptance Condition |
| Tensile Strength
IEC 60794-1-2-E1 |
– Load: Short term tension
– Length of cable: ≥ 50m – Load time: 1min |
– Fiber strain £ 0.6%
– Loss change £ 0.2dB@1550nm after test. – No fiber break and no sheath damage. |
| Crush Test
IEC 60794-1-2-E3 |
– Load: Short term crush
– Load time: 1min |
– Loss change £ 0.2dB@1550nm after test.
– No fiber break and no sheath damage. |
| Flame propagation
IEC 60332-1-2 |
– Pass the test for vertical flame propagation for a single insulated wire or cable | |
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 |
Application:
Access network
Local area network (LAN)
Used end users directly cabling
Fiber optic communication system
FTTH (fiber to the home) indoor cabling and distribution
Ideal Using of Butterfly Flat Indoor FTTH Drop Cable
Butterfly Flat Indoor Drop Cable is widely used in fiber to the home (FTTH) network system, which can directly connect the communication line from the LAN to the end users. Butterfly flat drop cable uses special low-bend-sensitivity fiber to provide high bandwidth and excellent communication transmission, it’s very suitable for indoor cabling, end users directly cabling, and access network.
Featured Products
