Classification of fiber optic transceivers

Optical fiber transceivers are generally used in actual network environments where Ethernet 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 to the metropolitan area network and the outer network. role.

Fiber optic transceiver classification

1. According to nature

According to the nature of optical fiber, it can be divided into multi-mode optical fiber transceiver and single-mode optical fiber transceiver. The difference between them is that the transmission distance is different. The general transmission distance of multi-mode transceivers is between 2 kilometers and 5 kilometers, while the coverage range of single-mode transceivers can be from 20 kilometers to 120 kilometers.

2. According to the sending and receiving data

Single-fiber optical transceivers and dual-fiber optical transceivers are classified according to the required optical fibers. Single-fiber optical transceivers transmit data received and sent on one optical fiber; while dual-fiber optical transceivers receive and send data on a pair of optical fibers. upload.

3. According to network management

According to network management, it can be divided into network-managed fiber optic transceivers and unmanaged fiber optic transceivers.

4. According to the type of management

According to the management type, it can be divided into managed Ethernet fiber optic transceivers and unmanaged Ethernet fiber optic transceivers. The managed Ethernet fiber optic transceivers support carrier-class network management, while the unmanaged Ethernet fiber optic Code switch to set the working mode of the electrical port, plug and play.

5. According to the working method

According to the working mode, the full-duplex mode means that when the sending and receiving of data are split and transmitted by two different transmission lines, both parties in the communication can perform sending and receiving operations at the same time. This transmission mode is full-duplex. Work system.

Working principle of fiber optic transceiver

Optical fiber transceivers are generally used in actual network environments where Ethernet 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 to the metropolitan area network and the outer network. role. With fiber optic transceivers, it also provides an inexpensive solution for users who need to upgrade their systems from copper wires to fiber optics and lack money, 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.

Fiber optic transceiver application range

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.