ASU fiber optic cable, also known as mini ADSS fiber optic cable, is an aerial self-supporting dielectric cable that contains one or two max loose tubes which is filled with up to 12 optical fibers(thus max 24 optical fibers in total). The fibers are protected from moisture by jelly and hydro-expandable material inside the loose tube.
It is all dielectric which has FRP strength member as a traction element, providing pull strength and avoiding electrical discharges between connections. It is much easier and ligher to handle and install compared to other outdoor cable, eliminating the need to use strings or grounding. It’s widely used in FTTH fiber to the home networking.
It is commonly in span of 80m or 120m with less weight.
It is mainly used in the communication route of overhead high voltage transmission system, and can also be used in the communication line under the environment such as lightning zone and long distance overhead line.
It is 20% or more cheaper compared with standard ADSS fiber optic cable. ASU fiber optic cable can not only save the use of imported aramid yarn, but also reduce the manufacturing cost due to the reduction of the overall structure size.
Great tensile strength and high/low temperature resistance
Service life is expected over 30 years
No. of cable | 12 | 24 | |
Fiber Model | G.652D | ||
Loose Tube | Material | PBT | |
Diameter | 2.5±0.1mm | 2.8±0.1mm | |
Thickness | 0.32±0.05 mm | ||
Color | Nature | ||
Strength Member | Material | FRP | |
Diatmeter | 2.5±0.05 mm | 2.5±0.1mm | |
Outer Sheath | Material | PE | |
Color | Black | ||
Cable Diameter | 8.0±0.2 mm | 8.5±0.2 mm | |
Cable Weight | 55±5.0 kg/km | 65±5.0 kg/km | |
Allowable Tensile Strength | 1000N | 1500N | |
Allowable Crush Resistance | 1100N/100mm | 2200N/100mm | |
Min. bending radius | Without Tension | 10.0×Cable-φ | |
Under Maximum Tension | 20.0×Cable-φ | ||
Temperature range （℃） | Installation | -20~+60 | |
Transport&Storage | -40~+70 | ||
Operation | -40~+70 | ||
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 |
Item | Test Method | Acceptance Condition |
Tensile Strength IEC 794-1-2-E1 | - Load: 1500N - Length of cable: about 50m | - Fiber strain £ 0.33% - Loss change £ 0.1 dB @1550 nm - No fiber break and no sheath damage. |
Crush Test IEC 60794-1-2-E3 | - Load: 1000N/100mm - Load time: 1min | - Loss change £ 0.1dB@1550nm - No fiber break and no sheath damage. |
Impact Test IEC 60794-1-2-E4 | - Points of impact: 3 - Times of per point: 1 - Impact energy: 5J | - Loss change £ 0.1dB@1550nm - No fiber break and no sheath damage. |
Temperature Cycling Test IEC60794-1-22-F1 | - Temperature step: +20oC→-40oC→+70oC →+20oC - Time per each step: 12 hrs - Number of cycle: 2 | - Loss change £ 0.1 dB/km@1550 nm - No fiber break and no sheath damage. |
Item | Specification |
Fiber type | Single mode |
Fiber material | Doped silica |
Attenuation coefficient @ 1310 nm @ 1383 nm @ 1550 nm @ 1625 nm |
£ 0.35 dB/km £ 0.32 dB/km £ 0.21 dB/km £ 0.25 dB/km |
Point discontinuity | £ 0.05 dB |
Cable cut-off wavelength | £ 1260 nm |
Zero-dispersion wavelength | 1300 ~ 1324 nm |
Zero-dispersion slope | £ 0.092 ps/(nm2.km) |
Chromatic dispersion @ 1288 ~ 1339 nm @ 1271 ~ 1360 nm @ 1550 nm @ 1625 nm | £3.5 ps/(nm. km) £5.3 ps/(nm. km) £18 ps/(nm. km) £22 ps/(nm. km) |
PMDQ (Quadrature average*) | £0.2 ps/km1/2 |
Mode field diameter @ 1310 nm | 9.2±0.4 um |
Core / Clad concentricity error | £ 0.5 um |
Cladding diameter | 125.0 ± 0.7 um |
Cladding non-circularity | £1.0% |
Primary coating diameter | 245 ± 10 um |
Proof test level | 100 kpsi (=0.69 Gpa), 1% |
Temperature dependence 0oC~ +70oC @ 1310 & 1550nm | £ 0.1 dB/km |
Packing material: Non-returnable wooden drum.
Both ends of cable are securely fastened to drum and sealed with a shrinkable cap to prevent ingress of moisture.
Cable printing: The sequential number of the cable length shall be marked on the outer sheath of the cable at an interval of 1meter ± 1%.
The following information shall be marked on the outer sheath of the cable at an interval of about 1 meter.
- Cable type and number of optical fiber
- Manufacturer name
- Month and Year of Manufacture
- Cable length
Drum marking: Each side of every wooden drum shall be permanently marked in a minimum of 2.5~3 cm high lettering with following:
- Manufacture name and logo
- Cable length
- Cable type and number of fibers
- Roll way
- Gross and net weight
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