GYTC8S Single-mode Optical Cable
Hanging an aerial cable has always been a two-step dance: first string a messenger wire along the poles, then attach the cable to it. The GYTC8S Single-mode Optical Cable collapses both steps into one product - the messenger and the optical core are molded together in a single figure-8 cross-section, so the crew hoists one cable and the route is done.
The Figure-8 That Saves a Pass
The upper lobe of the cable is a steel messenger that carries the mechanical load; the lower lobe holds the loose-tube optical core; a thin web of jacket material joins them. Because the two halves ship as one piece on a single drum, there is no separate messenger stock, no second reel, no lashing wire, and no hardware to align on site. For contractors paid by the kilometer, that single pass is the whole story.
A Messenger That Does the Heavy Lifting
The messenger is stranded steel wire, sized for the route it will serve. It absorbs the tension, the wind, and the ice that an aerial line accumulates, leaving the optical core free of mechanical stress for its entire working life. Pole-to-pole spans typically run from 50 to 150 meters, and each reel ships with a sag table for consistent tension. The same core design can be built with different messenger sizes for short urban stretches or long rural runs.
Steel Tape Where the Wild Things Bite
Aerial cable is not safe from the world below. Rodents climb poles, birds peck at soft jackets, and a thrown object or a careless ladder can dent an unprotected core. Under the outer jacket, a steel tape armor layer stops chewing, crushing, and impact damage before it reaches the fiber. The tape also stiffens the cable so it holds its shape during pulling - and geometry is what protects optical performance.
Optics That Match the Buried Standard
Being strung in the air does not mean accepting second-class optics. The core uses the same single-mode fiber found in underground plant, with the same attenuation and dispersion budgets for long-haul services. Standard fusion splicing and conventional closures work without modification, and the installed link meets the same loss requirements as any other route. The only difference is the price of the civil works.
Where the Figure-8 Pays Off
Rural broadband: high-speed internet reaches villages along existing pole lines, without trenching
Surveillance and telemetry: camera and sensor links follow roads, borders, and perimeter fences
Pipeline corridors: control data run the pipeline's length on existing structures
Campus and utility networks: quick links between buildings where digging is blocked
What One Cable Changes
One reel, one pass: messenger and cable are installed together in a single operation
No lashing hardware: nothing to attach or re-tension later
Built-in armor: steel tape defends against rodents, birds, and impact
Route-engineered: messenger diameter is matched to span, wind, and ice conditions
Key attributes
|
Brand Name |
Shengtang Optical Cable |
Model Number |
GYTC8S |
|
Type |
outdoor fiber optic cable |
Place of Origin |
Guangdong, China |
|
Number of Conductors |
≥ 10 |
Model Number |
GYTC8S |
|
Color |
black |
Jacket Material |
PE/ LSZH |
|
Fiber count |
2-144 |
Strength member |
Phosphated Steel Wire |
|
Usage |
For splicing |
MOQ |
2000Meter/Meters |
|
Application |
Telecommunication,Aerial,Duct |
Port |
GUANGZHOU |
|
Place of Origin |
Guangdong, China (Mainland) |
Packaging and delivery
| Port of dispatch | GUANG ZHOU or Shen Zhen | Selling Units | Single item |
| Single package size | 20X30X15 cm | Single gross weight | 1.000 kg |
Lead time
| Quantity (meters) | 1 - 10000 | 10001 - 900000 | > 900000 |
| Lead time (days) | 5 | 15 | To be negotiated |
Customization options
| Option | Min. order: | Customization fee |
|
Customized logo As requested |
1000 meters | -- |
|
Customized packaging As requested |
1000 meters | -- |
|
Graphic customization As requested |
1000 meters | -- |
12 24 32 36 48 Core Outdoor Optical Fiber Cable Gytc8S Figure 8 Central Loose Tube Metallic Type Aerial Optical Cable
|
OPTICAL CHARACTERISTICS |
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|
FIBER TYPE |
G652 |
50/125μm |
62.5/125μm |
|
|
Attenuation (+20℃) |
@850 nm |
<=3.0 dB/km |
<=3.3 dB/km |
|
|
@1300 nm |
<=1.0 dB/km |
<=1.0 dB/km |
||
|
@1310 nm |
<=0.36 dB/km |
|||
|
@1550 nm |
<=0.22 dB/km |
|||
|
Bandwitch (class A) |
@850 nm |
>=500 MHz*km |
>=200 MHz*km |
|
|
@1300 nm |
>=1000 MHz*km |
>=600 MHz*km |
||
|
Numerical Aperture |
0.200+-0.015NA |
0.275+-0.015NA |
||
|
Cable cut-off wavelength |
<=1260 nm |
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Application Scenario
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FAQ
Q1: How is a figure-8 cable installed?
It is strung like a single wire: the messenger lobe is clipped to the pole attachments as the reel pays out, and the optical lobe hangs below. No lashing machine is needed - the crew finishes when the drum is empty.
Q2: Can the messenger and the optical core separate?
They are joined by a molded web designed for the cable's rated tension and temperature range. They move as one in service; deliberate separation happens only at termination points, to free the optical lobe for splicing.
Q3: Why does it need steel tape armor?
Aerial plant faces rodents that climb, birds that peck, and accidental impacts. The steel tape sits between the core and the jacket, so chewing and crushing stop at the metal layer. It also adds stiffness during installation.
Q4: What span lengths are typical?
Standard designs cover spans from 50 to 150 meters, with longer reaches possible using heavier messengers. The sag table supplied with each reel defines tension for the actual span and weather.
Q5: How does it compare with an all-dielectric self-supporting cable?
A figure-8 cable carries a steel messenger - stronger per dollar and simpler to install along ordinary pole lines - but it is metallic and must be kept clear of high-voltage conductors. An all-dielectric design suits routes near energized lines; the figure-8 suits general aerial work without that constraint.
GYTC8S Single-mode Optical Cable - messenger and fiber in one figure-8, steel-tape protected, ready for a single-pass install. Share your span length and pole spacing for a sag table and configuration quote.