Central Tube Fiber Cable Outdoor Fiber Optic Cable
Central Tube Fiber Optic Cable Single Mode/Multimode Outdoor Fiber Optic Cable Application
Optical Fiber Central Tube Cable is mainly used for outdoor fiber connection along with building backbone application networks and link bridges.
Inside the central tube cable, 250µm (single-mode or multimode) fibers are positioned in loose tubes made of high modulus polyester material.
The tubes, filled with water-resistant compounds, are wrapped double chromium-plated PSP armor. Between the armor and the tubes, water-blocking material is applied to keep the cable watertight. Two parallel steel wires are placed at the two sides of the cable core and then a polyethylene (PE) jacket is extruded over it.
Product Features
- Central tube structure is designed for excellent mechanical performance and temperature performance;
- The loose tube material has good resistance to hydrolysis performance and high strength;
- The cable has 62.5/125 singlemode/multimode, 50/125 multimode, 2-24 cores, and many other specifications available;
- It provides a high crush resistance coupled with excellent bending performance and flexibility so as to avoid the impact from the outside environments;
- Its PSP armor improves moisture resistance;
- The two parallel steel wires ensures the cable's tensile strength;
- The cable meets the industry-regulated requirements of optical transmission, mechanical protection and flammability.
Application Standards
YD/T 769; IEC 60793; ISO/IEC11801
| Color Code |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Blue | Orange | Green | Brown | Slate | White | Red | Black | Yellow | Violet | Rose | Aqua |
| Color Code (2-24 core) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Blue | Orange | Green | Brown | Slate | White | Red | Black | Yellow | Violet | Rose | Aqua | |
| 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | |
| Blue + Color Ring | Orange + Color Ring | Green + Color Ring | Brown + Color Ring | Slate + Color Ring | White + Color Ring | Red + Color Ring | Black + Color Ring | Yellow + Color Ring | Violet + Color Ring | Rose + Color Ring | Aqua + Color Ring |
| Flame resistance |
Flammability standard for single wire: | GB/T 18380.12- 2008 |
Flammability standard for bunched wires: | GB/T 18380.35- 2008 |
|
Jacket: Peel off 50mm-long cable, place the empty jacket horizontally and burn for 4-5 seconds, using alcohol lamp; after the fire source is taken away, it extinguishes less than 2 seconds; |
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Technical Details
| Optical Properties | ||||||
| Type of Optical Fiber |
Attenuation | Injection Bandwidth (OFL) |
Effective Modal Bandwidth |
10 Ethernet Link Length SX |
Min. Bend Radius (mm) |
|
| 1310nm/1550nm | 850/1300nm | 850nm | 850nm | |||
| Typical Value (dB/km) | Max. Value (dB/km) | MHz·km | MHz·km | |||
| SM 9/125 | 0.36/0.22 | 0.4/0.3 | / | / | / | 16 |
| 850nm/1300nm | ||||||
| Typical Value (dB/km) |
Max. Value (dB/km) |
|||||
| MM62.5/125 OM1 | 3.0/1.0 | 3.5/1.5 | ≥ 200/500 | / | / | 30 |
| MM50/125 OM2 | 3.0/1.0 | 3.5/1.5 | ≥ 500/500 | / | ≥ 150 | 30 |
| MM50/125 OM3 | 3.0/1.0 | 3.5/1.5 | ≥ 1500/500 | ≥ 2000 | ≥ 300 | 30 |
| MM50/125 OM4 | 3.0/1.0 | 3.5/1.5 | ≥ 3500/500 | ≥ 4700 | ≥ 550 | 30 |
| Structure Specifications | ||||
| Name | Material | Parameter | Configuration (2-12 core) | Configuration (13-24 core) |
| Loose Tube | PBT | Outer diameter | 2.5±0.1mm | 3.0±0.1mm |
| Thickness | 0.40±0.05 mm | 0.45±0.05 mm | ||
| Strength Member | Phosphatized steel wire | Diameter | 1.0mm*2 | 1.0mm*2 |
| Steel-Plastic Composite Belt | PSP/EGE | Thickness | 0.205mm | 0.205mm |
| Steel Wire Outer Jacket | GYXTW: PE GYXTZW: LSZH |
Min. distance between outer jacket and steel wire | ≥0.8mm | ≥0.8mm |
| Fiber Optic Outer Jacket | GYXTW:PE GYXTZW:LSZH |
Outer diameter | ∮7.3±0.3mm | ∮7.8±0.3mm |
| Temperature Range for Outer Jacket | -40℃~+60℃ | Additional attenuation at 20℃ | ≤0.1 | |
| Mechanical Properties | |||
| No. | Name | Requirements | |
| 1 | Allowed Tensile Strength, N | Short Term | 1500 |
| Long Term | 600 | ||
| 2 | Allowed Crush Resistance, N/100mm | Short Term | 1000 |
| Long Term | 300 | ||
| 3 | Bend Radius, mm | Static | 10D |
| Dynamic | 20D | ||
| 4 | Water Permeability | In accordance with YD/T 769-2018 | |
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