Structure:
- The "central tube" design means that the optical fibers are located in a central plastic tube. The fibers are usually surrounded by a suitable cushioning material such as a gel or a loose tube filling compound. This provides mechanical protection and helps to maintain the proper position of the fibers.
- The "Figure 8" shape is an important characteristic. The upper part of the figure - 8 is usually used for the fiber - optic core, while the lower part is often filled with a strengthening member, typically a steel wire or a non - metallic strength member like aramid yarn. The strength member is crucial as it provides tensile strength to the cable, allowing it to be installed over long distances without breaking. For example, in a typical outdoor installation, the cable may need to span between poles or be pulled through ducts, and the strength member can withstand the forces exerted during these installation processes.
Fiber Optic Core:
- The optical fibers inside the central tube are the key components for signal transmission. These fibers are made of high - purity silica glass. They have a very thin core, usually in the range of a few micrometers to tens of micrometers, surrounded by a cladding layer. The difference in refractive index between the core and the cladding enables total internal reflection of light signals, which is the fundamental principle for guiding the optical signal through the fiber. For instance, in a single - mode fiber (which might be used in GYXTC8S), the core diameter is typically around 9 µm, and the cladding diameter is about 125 µm.
- The fibers can support high - speed data transmission. They are capable of transmitting digital signals over long distances with very low loss. Data rates can reach up to several terabits per second, depending on the fiber type and the transmission equipment used. This makes the GYXTC8S cable suitable for applications such as long - haul telecommunications, where large amounts of data need to be transferred between cities or regions.
Applications:
- In telecommunications networks, it is used for connecting telephone exchanges, data centers, and cell towers. For example, in a mobile network infrastructure upgrade, the GYXTC8S cable can be used to provide high - speed backhaul connections from the base stations to the core network, enabling faster data transfer for mobile users.
- It is also suitable for cable television (CATV) systems. The cable can carry a large number of TV channels and other multimedia content to subscribers' homes. The high - bandwidth and low - loss characteristics of the fiber ensure clear and reliable signal reception for a wide range of services, including high - definition television and on - demand video streaming.
- Additionally, in local area networks (LANs) of large enterprises or campuses, the GYXTC8S cable can be used for high - speed inter - building connections. It provides a more reliable and higher - capacity alternative to traditional copper cables, especially for applications that require long - distance connections between different parts of a campus or an industrial complex.
Advantages:
- Low signal attenuation is a significant advantage. The optical fibers in the GYXTC8S cable have very low loss per unit length, typically less than 0.2 dB/km for single - mode fibers. This means that the signal can travel long distances without the need for frequent signal amplification.
- Immunity to electromagnetic interference (EMI) is another key benefit. Unlike copper cables, fiber optic cables do not conduct electricity and are not affected by external electromagnetic fields. This makes them ideal for use in environments with high levels of electrical noise, such as near power lines or industrial equipment.
- High security is also a characteristic. Since the optical signal is confined within the fiber through total internal reflection, it is very difficult to tap into the signal without detection. This provides a higher level of security for data transmission compared to other cable types.

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