The role and application range of fiber optic transceivers

What is a fiber optic transceiver? What is the role of fiber optic transceivers?

What is a Fiber Optic Transceiver

Optical fiber transceiver is an Ethernet transmission media conversion unit that interchanges short-distance twisted-pair electrical signals and long-distance optical signals. It is also called a photoelectric converter in many places. Products are generally used in actual network environments where Ethernet cables cannot be covered and optical fibers must be used to extend the transmission distance, and are usually positioned at the access layer of broadband metropolitan area networks; such as: high-definition video image transmission for monitoring security engineering; at the same time Helping connect the last mile of fiber to the metro and beyond has also played a huge role.

What is the function of fiber optic transceiver

Maybe what is the fiber optic transceiver above? You don't understand it very well, so you can understand it from its use.

Since the maximum transmission distance of the network cable (twisted pair) we often use is very limited, the maximum transmission distance of the twisted pair is generally 100 meters. Therefore, when we are deploying a larger network, we have to use relay devices. Optical fiber is a good choice. The transmission distance of optical fiber is very long. Generally speaking, the transmission distance of single-mode optical fiber is more than 10 kilometers, and the transmission distance of multi-mode optical fiber can reach up to 2 kilometers. When using optical fibers, we often use optical fiber transceivers:

If you want to know how to use a fiber optic transceiver, you must first know what the fiber optic transceiver does. To put it simply, the function of the fiber optic transceiver is to convert between optical signals and electrical signals. The optical signal is input from the optical port, and the electrical signal is output from the electrical port (common RJ45 crystal head interface), and vice versa. The process is roughly as follows: convert the electrical signal into an optical signal, transmit it through an optical fiber, convert the optical signal into an electrical signal at the other end, and then connect it to routers, switches and other equipment.

Therefore, fiber optic transceivers are generally used in pairs. For example, the fiber optic transceiver (possibly other equipment) in the computer room of the operator (Telecom, China Mobile, China Unicom) and the fiber optic transceiver in your home. If you want to use fiber optic transceivers to build your own LAN, you must use them in pairs. The general optical fiber transceiver is the same as the general switch, it can be used after being powered on, and no configuration is required. Optical fiber port, RJ45 crystal plug power port. But pay attention to the sending and receiving of optical fibers, one for receiving and one for sending, and if it doesn't work, replace each other.

What are the classifications of fiber optic transceivers?

Optical fiber transceiver, also known as photoelectric converter, is an Ethernet transmission media conversion unit that exchanges short-distance twisted-pair electrical signals and long-distance optical signals.

Different viewing angles make people have different understandings of fiber optic transceivers:

For example, according to the transmission rate, it is divided into single 10M, 100M fiber optic transceivers, 10/100M adaptive fiber optic transceivers and 1000M fiber optic transceivers;

According to the working mode, it is divided into optical fiber transceivers working at the physical layer and optical fiber transceivers working at the data link layer;

From a structural point of view, it can be divided into desktop (stand-alone) fiber optic transceivers and rack-mount fiber optic transceivers;

According to the different access fibers, there are two types of multi-mode fiber optic transceivers and single-mode fiber optic transceivers.

In addition, there are single-fiber fiber optic transceivers and dual-fiber fiber optic transceivers, built-in power fiber optic transceivers and external power fiber optic transceivers, network managed fiber optic transceivers and unmanaged fiber optic transceivers.

Fiber optic transceivers break through the 100-meter limitation of Ethernet cables in data transmission. Relying on high-performance switching chips and large-capacity buffers, while truly realizing non-blocking transmission and switching performance, they also provide balanced traffic, isolation conflicts and Error detection and other functions to ensure high security and stability during data transmission.

Where is the application range of fiber optic transceivers

In essence, the optical fiber transceiver only completes the data conversion between different media, and can realize the connection between two switches or computers within 0-120Km, but the actual application has more expansion.

1. Realize the interconnection between switches.

2. Realize the interconnection between the switch and the computer.

3. Realize the interconnection between computers.

4. Transmission relay: When the actual transmission distance exceeds the nominal transmission distance of the transceiver, especially when the actual transmission distance exceeds 120Km, if the site conditions permit, use 2 transceivers for back-to-back relay or use optical- It is a very cost-effective solution to use optical converters for relaying.

5. Single-multimode conversion: When there is a need for single-multimode fiber connection between networks, a single-multimode converter can be used for connection, which solves the problem of single-multimode fiber conversion.

6. Wavelength division multiplexing transmission: When long-distance optical cable resources are insufficient, in order to improve the utilization rate of the optical cable and reduce the cost, the transceiver and the wavelength division multiplexer can be used together to allow the two channels of information to be transmitted on the same pair of optical fibers.

The above is the whole content of what is a fiber optic transceiver and what is the function of a fiber optic transceiver. I believe that after reading this article, you have a certain understanding of what a fiber optic transceiver is. I hope that the above can help you.