This next type of telecom cable is relatively new compared to the cables we’ve already discussed. Fiber optic cables use light to send data. The fibers in these cables are covered with plastic and reside in a tube that prevents interference.
Fiber optic cables are composed of an outer casing and core. The optical casing encompasses the light, keeping it contained in the core.
The size of a fiber optic cable’s core is used to categorize the cables. There are two different types:
- Single mode – This type of fiber optic cable has a small core that results in low attenuation,
- Multimode – This type of fiber optic cable has a larger core that causes higher attenuation.
You can tell what category a specific fiber optic cable falls into just by looking at the color of its sheathing.
For example, an aqua blue color means the cable is multimode, while a yellow sheathing reveals that the cable is single mode.
Cable markings indicate what materials were used to make their jackets. The following list includes some markings that may be found:
- PVC – Polyvinyl Chloride;
- PE – Polyethylene;
- PUR – Polyurethane;
- PBT – Polybutylene terephthalate,
- PA – Polyamide.
Fiber optic cables are ultra-resistant to interferences, making these telecom wires trustworthy for transmission. Plus, they provide fast connections.
But those benefits come at a price. Fiber optic cables are more expensive than the other two telecom cables mentioned in this article.
Without telecommunication cables, we wouldn’t be able to have long-distance communication in its various forms. So, if you need telecom wires and cables, you need to know that you can count on them.
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