Self-supporting Figure 8 Fiber Optic Cable


Self-supporting Figure 8 Fiber Optic Cable

The 250um fibers are positioned in a loose tube made of high modulus plastic. The tubes are filled with a water-resistant filling compound. A steel wire is located in the center of the core as a metallic strength member. The tubes (and fibers) are stranded around the strength member into a compact and circular cable core. After an Aluminum (or steel tape) Polyethylene Laminate (APL) moisture barrier is applied around the cable core, this part of the cable, accompanied by the stranded wires as the supporting part, is completed with a polyethylene (PE) sheath to form a figure 8 structure. Figure 8 cables, GYTC8A and GYTC8S, are also available upon request. This type of cable is specifically designed for self-supporting aerial installation.

Product Detail


Product Tags

Product Features

Self-supporting stranded steel wire (7*1.0mm) structure of figure 8 is easy to support overhead laying to reduce cost.

Good mechanical and temperature performance.

High tensile strength. Loose tube stranded with a special tube filling compound to ensure critical protection of fiber.

Selected high-quality optical fiber ensures that the optical fiber cable has excellent transmission properties. The unique fiber excess length control method provides the cable with excellent mechanical and environmental properties.

Very strict material and manufacturing control guarantees that the cable can work stably for more than 30 years.

The total cross-section water-resistant structure makes the cable have excellent moisture resistance properties.

The special jelly filled in the loose tube provides the fibers with critical protection.

The steel tape strength optical fiber cable has crush resistance.

The figure-8 self-supporting structure has high tension strength and facilitates aerial installation, resulting in low installation costs.

The loose tube stranding cable core ensures that the cable structure is stable.

The special tube filling compound ensures critical protection of the fiber and resistance to water.

The outer sheath protects the cable from ultraviolet radiation.

The small diameter and light weight make it easy to lay.

Optical Characteristics

Fiber Type Attenuation 1310nm MFD

(Mode Field Diameter)

Cable Cut-off Wavelength λcc(nm)
@1310nm(dB/KM) @1550nm(dB/KM)
G652D ≤0.36 ≤0.22 9.2±0.4 ≤1260
G655 ≤0.4 ≤0.23 (8.0-11)±0.7 ≤1450
50/125 ≤3.5 @850nm ≤1.5 @1300nm / /
62.5/125 ≤3.5 @850nm ≤1.5 @1300nm / /

Technical Parameters

Fiber Count Cable Diameter
(mm) ±0.5
Messenger Diametor
(mm) ±0.3
Cable Height
(mm)  ±0.5
Cable Weight
Tensile Strength (N) Crush Resistance (N/100mm) Bending Radius (mm)
Long Term Short Term Long Term Short Term Static Dynamic
2-30 9.5 5.0 16.5 155 3000 6000 1000 3000 10D 20D
32-36 9.8 5.0 16.8 170 3000 6000 1000 3000 10D 20D
38-60 10.0 5.0 17.0 180 3000 6000 1000 3000 10D 20D
62-72 10.5 5.0 17.5 198 3000 6000 1000 3000 10D 20D
74-96 12.5 5.0 19.5 265 3000 6000 1000 3000 10D 20D
98-120 14.5 5.0 21.5 320 3000 6000 1000 3000 10D 20D
122-144 16.5 5.0 23.5 385 3500 7000 1000 3000 10D 20D


Long distance communication and LAN.

Laying Method

Self-supporting aerial.

Operating Temperature

Temperature Range
Transportation Installation Operation
   -40℃~+70℃    -10℃~+50℃    -40℃~+70℃


YD/T 1155-2001, IEC 60794-1


OYI cables are coiled on bakelite, wooden, or ironwood drums. During transportation, the right tools should be used to avoid damaging the package and to handle them with ease. Cables should be protected from moisture, kept away from high temperatures and fire sparks, protected from over-bending and crushing, and protected from mechanical stress and damage. It is not allowed to have two lengths of cable in one drum, and both ends should be sealed. The two ends should be packed inside the drum, and a reserve length of cable not less than 3 meters should be provided.

Loose Tube Non-metallic Heavy Type Rodent Protected

The color of cable markings is white. The printing shall be carried out at intervals of 1 meter on the outer sheath of the cable. The legend for the outer sheath marking can be changed according to the user's requests.

Test report and certification provided.

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