Switch is a network device used to forward electrical (optical) signals.

What are the functions of the switch and the optical fiber transceiver? The optical fiber transceiver is only a photoelectric conversion device, which is only used as a means to extend the transmission distance because the transmission distance is too long; while the Ethernet switch is for network An Ethernet connection device for internal data exchange.

The difference between optical switch and optical transceiver is:

1. Optical fiber switch is a kind of high-speed network transmission relay equipment. Compared with ordinary switches, it uses optical fiber cable as the transmission medium. The advantages of optical fiber transmission are fast speed and strong anti-interference ability;
2. Optical fiber transceiver is an Ethernet transmission media conversion unit that exchanges short-distance twisted pair electrical signals and long-distance optical signals. It is also called a fiber converter in many places;
3. The fiber optic switch is to connect the fiber channel with a higher transmission rate to the server network, 8-port fiber optic switch or the internal components of the SAN network. In this way, the entire storage network has a very wide bandwidth and provides a guarantee for high-performance data storage;
4. The optical fiber transceiver provides ultra-low latency data transmission and is completely transparent to the network protocol. A dedicated ASIC chip is used to realize data line-speed forwarding. Programmable ASIC concentrates multiple functions on one chip, and has the advantages of simple design, high reliability, and low power consumption, which can enable equipment to obtain higher performance and lower cost.

If the Ethernet network is too large and the transmission distance has exceeded the distance that the electrical signal can be transmitted, the electrical switch port of the Ethernet switch needs to be photoelectric conversion, so you need to use the Ethernet fiber optic transceiver to extend your transmission distance. The electrical signal is converted into an optical signal for long-distance transmission.