Introduction to the working principle and use method of optical fiber transceiver

Regarding the working principle and use method of the optical fiber transceiver, the editor of Feichang Technology carefully organizes it here. First, let’s understand what an optical fiber transceiver is. The optical fiber transceiver is a short-distance twisted pair The serial transmission media conversion unit that exchanges electrical signals with long-distance optical signals is also called a photoelectric converter in many places. After understanding what a fiber optic transceiver is, let’s learn more about the working principle of the fiber optic transceiver and how to use it!

Working principle of optical fiber transceiver:

Fiber optic transceivers are generally used in the actual network environment where cables cannot be covered and optical fibers must be used to extend the transmission distance. At the same time, they also play a huge role in helping to connect the last mile of optical fiber lines to metropolitan area networks and outer networks. effect. With the optical fiber transceiver, it also provides a cheap solution for users who need to upgrade the system from copper wire to optical fiber, and provide cash, manpower or time. The function of the fiber optic transceiver is to convert the electrical signal we want to send into an optical signal and send it out. At the same time, it can convert the received optical signal into an electrical signal and input it to our receiving end.


How to use optical fiber transceiver:

Because the maximum transmission distance of the network cable (twisted pair) we often use has great limitations, the maximum transmission distance of the general twisted pair is 100 meters. Therefore, when we are laying out the connected network, we have to use relay equipment. Of course, other types of lines are used for transmission. Optical fiber is a good choice. The transmission distance of optical fiber is very long. Generally speaking, the transmission distance of single-mode fiber is above 10, and the transmission distance of multi-mode fiber can reach up to 2 inches. When using optical fibers, we often use optical transceivers.

If you want to know how to use the fiber optic transceiver, you must first know what the fiber optic transceiver has. Simply put, the role of the fiber optic transceiver is the mutual conversion between optical signals and electrical signals. Input the optical signal from the optical port, and output the electrical signal from the electrical port (common RJ45 crystal head interface), and vice versa. The process is roughly as follows: convert electrical signals into optical signals, transmit them through optical fibers, convert optical signals into electrical signals at the other end, and then connect to routers, switches and other equipment.

Therefore, fiber optic transceivers are generally used in pairs. For example, the optical fiber transceiver (may be other equipment) in the computer room of the operator (Telecom, China Mobile, China Unicom) and your home fiber transceiver. If you want to use a general fiber optic transceiver, just like a general switch, it can be used when it is plugged in without any configuration. Optical fiber connector, RJ45 crystal plug connector. But pay attention to the transmission and reception of optical fiber, one for receiving and one for sending, if not, change each other.

Post time: Jan-18-2021