Domestic enterprises and units in recent years, the rapid development of enterprises, enterprises continue to expand, more and more office buildings, the greater the building is also built. Then the scope of the enterprise network is also increasing. Used in a position of office, to solve the problem of copper wire can now increase plant in many places over the limit transmission of the twisted pair, businesses have to consider the application of optical fiber. Here are some examples of fiber cabling applications.
This is the underground communication culvert on the street, and the outdoor fiber is waterproof!
For beauty, whether it's on the street, in the neighborhood, or in the factory. Cable is now into the ground, unlike before, the sky is full of lines, pull like spider web. Some underground culvert, in addition to weak communication, as well as 220V380V power supply cable, which is very big interference to communication! Don't worry this problem using optical fiber.
Four core single mode outdoor optical fiber
What we see now is the four core single-mode fiber. The core of the fiber is a very thin core inside it. It may be composed of quartz, glass and plastic. The light wave in the fiber core comes from one end to the other end through the refraction principle of light. The outer layer is some protective material, and there is a wire in the middle, which is used to protect the fiber in the wiring process will not be too long because of its heavy and broken.
This is the fiber box, inside the yellow wire is also integrated on the tail of another coupler in the pigtail
This is the case and fiber pigtail, this is actually the two parts, protective wire core wire outdoor fiber middle, which resulted in the fiber of high hardness, and the core itself is too small, we can not take it and signal equipment (optical fiber transceiver) is directly connected, this time we should use the fiber box the outdoor optical fiber in optical fiber line box was peeling, coring, put the core inside the fiber core and fiber welding pick up. Soft fiber pigtail is a joint side, the other side to the core and the outdoor optical fiber welding. These two soft little things are protected by hard fiber boxes to avoid damage.
Couplers are also called flanges. To do is to connect the two optical fiber connectors. Independent type, there are some like this comes with a pigtail on.
This is fiber welding
The principle of optical fiber welding is to weld two thin glass together by high temperature laser, and the following one is one of the equipments. It's easy to say, it's still a little tedious. A fiber melting machine is worth tens of thousands, and most of the businesses selling optical fiber equipment will have these devices.
Finally, jumpers and fiber transceivers
Finally, the jumpers are the fiber optic transceiver and the fiber optic transceiver. The fiber optic transceiver must correspond to the type of the optical fiber. The single-mode fiber corresponds to the single mode fiber transceiver, and the multimode fiber corresponds to the multimode optical fiber transceiver. The difference between single-mode and multimode is that the refraction angle of light wave in the fiber core and the diameter of the fiber core are different. Single mode is used for long-distance transmission of data, and multi-mode is used for data transmission within 2 kilometers.
Jumper is also a pair of optical fiber on both sides of the joints, the jumper is easy to fiber from the fiber optic fiber to the optical transceiver equipment up. This jumper is broken, it can be changed, but there are few bad ones! The fiber optic transceiver converts the optical signal into an electronic signal. It can be seen that an ordinary five twisted pair connection switch is used on the optical transceiver
At the end of the computer room, the optical fiber transmission process from the computer room to the workshop is completed, and a simple application of the optical fiber LAN is completed.