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The Difference Between Indoor and Outdoor Fiber Optic Cables


Fiber optic cables are a technology that allows light signals to be transmitted through a glass core and a cladding layer. These light signals can carry information over long distances at high speed. However, fiber optic cables are not all the same. Depending on the environment in which they are used, they may have different characteristics and require different types of protection. In this article, we will explain the key differences between indoor and outdoor fiber optic cables, as well as their applications and advantages.


What are indoor fiber optic cables?


Indoor fiber optic cables are those used primarily in enclosed environments, such as buildings, offices or data centers. These cables have lower tensile strength and a thinner protective layer than outdoor fiber optic cables, which makes them lighter and more economical. However, it also makes them more vulnerable to environmental factors such as moisture, dust or electromagnetic interference.


Indoor fiber optic cables consist of a core of optical fibers that are bundled into a cable with a protective plastic jacket. Some indoor fiber optic cables may also have an additional protective layer, such as a metal mesh or plastic armor, to increase their mechanical strength or immunity to interference. Indoor fiber optic cables are used to connect network devices within the same building or between nearby buildings, as well as for horizontal or vertical cabling of facilities.



What are outdoor fiber optic cables?


Outdoor fiber optic cables are those that are mainly used in open environments, such as roads, bridges, aerial or submarine cables. These cables have a higher tensile strength and a thicker protective layer than indoor fiber optic cables, making them more durable and resistant to environmental factors such as temperature, humidity, UV rays, rodents or mechanical stresses.


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Outdoor fiber optic cables consist of a core of fiber optic bundles that are covered with a protective sheath and jacket. Some outdoor fiber optic cables may also have an additional protective layer, such as a metal armor or steel tape, to increase their protection against water, fire, cuts or impact. Outdoor fiber optic cables are used to connect networks between distant buildings or between remote networks, as well as for outdoor installations such as direct burial, duct, aerial or submarine installations.


What are the differences between indoor and outdoor fiber optic cables?


The main differences between indoor and outdoor fiber optic cables can be summarized as follows:


Models and applications


Indoor and outdoor fiber optic cables have different models and applications according to their characteristics and requirements. For example, indoor fiber optic cables are usually GJFJV type, which is used for building wiring or as an optical cable bridge.


Outer casing and practicality


Outdoor fiber optic cables have a thicker and more robust outer jacket than indoor fiber optic cables, which gives them greater strength and protection. However, it also makes them heavier and more difficult to handle. Indoor fiber optic cables have a thinner and more flexible outer jacket than outdoor fiber optic cables, which allows them to better fit into tight spaces and bends. However, it also makes them more sensitive to damage and interference.

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