- Model: Double Sheath Central Loose Tube Armored Cable 2-12F/2-24F
- Name: Double Sheath Central Loose Tube Armored Cable
- Loose tube material: PBT
- Tube-filling material: Tube filling compound
- Cladding diameter: 125.0±0.1μm
- Coating diameter: 242±7μm
- Outer armored material: Corrugated steel tape
- Inner sheath material: PE
- Outer sheath material: PE
- Coating non circularity: ≤6.0%
- Installation Temperature range(℃): -15~+60
- Operation and transport temperature(℃): -40~+70
Double Sheath Central Loose Tube Armored Cable Description
2-12F Double Sheath Central Loose Tube Armored Cable:
Cable structure:

Note: Structure drawing just for reference, please check the following details.
Fiber Allocation Scheme:
| Fiber number | Tube number | Fiber per tube | Fiber type |
| 2-12 | 1 | 2-24F/Tube | OS1 OS2 OM1,OM2, OM3,OM4 |
Cable construction details:
| Items | Description | |
| Number of fiber | 2-12cores | |
| Moisture Barrier | Water blocking system | |
| Tube-filling | material | Tube filling compound |
| Loose tube | material | PBT |
| diameter | Ф2.0~2.8 (outer/inner) | |
| Inner sheath | material | PE |
| diameter | 1.2mm | |
| Strength member | E-glass | PE |
| diameter | 1680d | |
| Outer armored | material | Corrugated steel tape |
| Outer sheath | material | PE |
| diameter | 1.60±0.2mm | |
Standard color of fiber and tube
The color code of the individual fibers shall be following the table below:
| Standard Color Identification | ||||||
| No. | 1 | 2 | 3 | 4 | 5 | 6 |
| Color | Blue | Orange | Green | Brown | Slate | White |
| No. | 7 | 8 | 9 | 10 | 11 | 12 |
| Color | Red | Black | Yellow | Violet | Pink | Aqua |
When the fibers are over 12, the 12(13-24)fibers will be marked with a black tracer. The tracer should be marked on the fiber surface with an interval.
Cable Mechanical characteristic:
| Items | Cable diameter | Weight | |
| 2cores to 12cores | 12.0±0.5mm | 105±5kg/km | |
| Installation Temperature range | -15–+60 | ||
| Operation and transport temperature | -40–+70 | ||
| Min Bending Radius(mm) | Long term | 10D | |
| Short term | 20D | ||
| Min. Allowable Crush Load (N/100mm) | Long term | 1000 | |
| Short term | 3000 | ||
| Min allowable Tensile Strength(N) | Long term | 1000 | |
| Short term | 3000 | ||
2-24F Double Sheath Central Loose Tube Armored Cable:
Cable structure:

Note: Structure drawing just for reference, please check the following details.
Fiber Allocation Scheme:
| Fiber number | Tube number | Fiber per tube | Fiber type |
| 2-24 | 1 | 2-24F/Tube | OS1 OS2 OM1,OM2, OM3,OM4 |
Cable construction details:
| Items | Description | |
| Number of fiber | 2-24cores | |
| Moisture Barrier | Water blocking system | |
| Tube-filling | material | Tube filling compound |
| Loose tube | material | PBT |
| diameter | Ф2.2(outer/inner) | |
| Inner sheath | material | PE |
| diameter | 7.8mm | |
| Strength member | material | Steel wire |
| diameter | 0.8mm | |
| Outer armored | material | Corrugated steel tape |
| Outer sheath | material | PE |
| diameter | 12.50±0.2mm | |
Standard color of fiber and tube
The color code of the individual fibers shall be following the table below:
| Standard Color Identification | ||||||
| No. | 1 | 2 | 3 | 4 | 5 | 6 |
| Color | Blue | Orange | Green | Brown | Slate | White |
| No. | 7 | 8 | 9 | 10 | 11 | 12 |
| Color | Red | Black | Yellow | Violet | Pink | Aqua |
When the fibers are over 12, the 12(13-24)fibers will be marked with a black tracer. The tracer should be marked on the fiber surface with an interval.
Cable Mechanical characteristic:
| Items | Cable diameter | Weight | |
| 2cores to 60cores | 12.0±0.5mm | 145±5kg/km | |
| Installation Temperature range | -15–+60 | ||
| Operation and transport temperature | -40–+70 | ||
| Min Bending Radius(mm) | Long term | 10D | |
| Short term | 20D | ||
| Min. Allowable Crush Load (N/100mm) | Long term | 1500 | |
| Short term | 3000 | ||
| Min allowable Tensile Strength(N) | Long term | 1000 | |
| Short term | 3000 | ||
Other Description:
Application:
- Adopted to Outdoor distribution.
- Suitable for aerial duct and buried method.
- Long distance and local area network communication.
- Suitable for aerial duct and buried method.
- Long distance and local area network communication.
Characteristics:
- E-glass and Steel-wire parallel member. The filler protects tube fiber steel tape armored.
- Excellent mechanical and environmental performance.
- Compact structure, light weight.
- Can be installed conveniently and operated simply.
Requirement for Order:
1. Fiber sort: Single mode G652,G655,G657, Multi mode 50/125,62.5/125,OM3,OM4.
2. Sheath material: PE, LSZH( can be required).
3. Sheath color: Black, can be required.
4. The fiber and tube color: according to stranded color, and can be required.
5. The cable Size: shall be following the table, and can be required.
6. Length of cable: generally is 2KM, can be required.
7. Other requirement: can be negotiated.
Fiber characteristic
| Fiber style | Unit | SM G652D | MM 50/125 | MM 62.5/125 | |
| condition | nm | 1310/1550 | 850/1300 | 850/1300 | |
| attenuation | dB/km | ≤0.34/0.2 | ≤3.0/1.0 | ≤3.0/1.0 | |
| Dispersion | 1310nm≤0.34/0.2 | Ps/(nm*km) | ≤18 | ….. | ….. |
| 1550nm | ≤22 | ….. | ….. | ||
| Bandwidth | 850nm | MHZ. KM | ….. | ≧400 | ≧160 |
| 1300nm | ….. | ≧800 | ≧500 | ||
| Zero dispersion wavelength | nm | ≧1302, ≤1322 | ….. | ….. | |
| Zero dispersion slope | nm | ≤0.091 | ….. | ….. | |
| PMD Maximum Individual Fiber | ≤0.2 | ….. | ….. | ||
| PMD Design Link Value | Ps(nm2*km) | ≤0.08 | ….. | ….. | |
| Fiber cutoff wavelength λc | nm | ≧1180,≤1330 | ….. | ….. | |
| Cable cutoff wavelength λcc | nm | ≤1260 | ….. | ….. | |
| MFD | 1310nm | um | 9.2±0.4 | ….. | ….. |
| 1550nm | 10.4±0.8 | ….. | ….. | ||
| Numerical Aperture(NA) | ….. | 0.200±0.015 | 0.275±0.015 | ||
| Step(mean of bidirectional measurement) | dB | ≤0.05 | ≤0.10 | ≤0.10 | |
| Irregularities over fiber length and point discontinuity | dB | ≤0.05 | ≤0.10 | ≤0.10 | |
| Difference backscatter coefficient | dB/km | ≤0.03 | ≤0.08 | ≤0.10 | |
| Attenuation uniformity | dB/km | ≤0.01 | ……. | ……. | |
| Core diameter | um | ……. | 50±1.0 | 62.5±2.5 | |
| Cladding diameter | um | 125.0±0.1 | 125.0±0.1 | 125.0±0.1 | |
| Cladding non-circularity | % | ≤1.0 | ≤1.0 | ≤1.0 | |
| Coating diameter | um | 242±7 | 242±7 | 242±7 | |
| Coating/chaffinch concentrically error | um | ≤12.0 | ≤12.0 | ≤12.0 | |
| Coating non circularity | % | ≤6.0 | ≤6.0 | ≤6.0 | |
| Core/cladding concentricity error | um | ≤0.6 | ≤0.6 | ≤0.6 | |
| Curl(radius) | um | ≤4 | ……. | ……. | |
