Fiber Optic Cable Types and Installations
Fiber optic cables are very different from copper cables.Fiber optic cables transmit data through very small cores over long distance at the speed of light.These cables come in a wide variety of configurations.Important considerations in any cable installation and operation are the bending radius; tensile strength; ruggedness; durability; flexibility; environmental conditions, such as temperature extremes; and even appearance.Due to fiber optic cables; lightweight and extreme flexibility, fiber optic cable are more easily installed than their copper counterparts.
Fiber Optic Cable Types and Applications
There are many fiber optic cable types and designs available.Fiber cables can be classified into the following categories: fiber optic cables for indoor applications, those for outdoor applications, and indoor/outdoor applications.The following sections explain each category in detail.
Indoor Fiber optic cable Types and Applications
Indoor cables are generally installed and operated in a controlled,stable environment.The cables must perform with minimal loss.Her factors that generate losses, such as environment and mechanical stresses during and after installation, can cause failure.Outdoor cables have more factors that concern their performance.Indoor fiber cables are divided into the following types:
1.Simplex Fiber Optic Cable contain a single fiber cable, as shown in figure 4.1.They are employed to connections within equipment.They have a thicker outer jacket, which makes the table easier to handle and adds mechanical protection.
2.Duplex Fiber Optic Cable contain two tight-buffered fiber cables inside a single jacket, as showed in figure 4.2 They are used in equipment interconnections within workstations, test equipment, hubs and router,etc.
3.Breakout cables have several individual simplex cables
4.Light cables,heavy cables,and plenum cables are application dependent.
Outdoor Fiber Optic Cable Tyes
Outdoor cables must withstand a variety of enviroment and mechanical stress during and after installation.The cables must perform with minimal losses over a wide range of temperature and humidity changes.The cable must also have waterproof capabilities, have strength to endure the difficult installation conditions, provide protection against ultraviolet radiation, and provide mechanical protection, there are many types and designs, depending on the manufacturer and application.Outdoor fiber cables are divided into the following types:
1.Overhead cables may be stung from telephone poles or along power lines.
2.Direct burial cables placed directly in a trench dug in the ground and then covered with soil.
3.Submarine cables are set underwater.
Ftth has already been tried -and it failed miserably.Why should carriers are tested again? With the advent of asymmetric digital subscriber line and cable modems, the need for broadband Internet access has grown.That growth is likely to continue to into the future,and at some point demand will reach a level that can support ftth.The data requirements between the residence and its multiple communities of interest will reach a ftth-sustainable level within a few years, and customers will be willing to pay Ftth prices.Moreover, some carriers's investment strategies will favor Ftth over hybrid fiber because at some point,Hfc becomes too expensive, If Ftth can be delivered at lower cost it will gain a competitive advantage.
