Can optical fiber convert network cable? Optical fiber is a kind of optical glass fiber, which transmits optical signals and cannot be directly connected to the network cable. It needs to use photoelectric conversion equipment to convert the optical signals into network signals. Common photoelectric conversion equipment includes household optical fiber cat equipment, optical fiber transceiver and Optical switch.
1.Home fiber optic modem equipment
Fiber optic modems are also called fiber optic modems. Its main function is to perform signal conversion. It is a relay device used for network transmission.”Fiber optic modem” is usually used for transmission distances exceeding 20KM and speeds exceeding 2M. Optical transmission equipment such as SDH / PDH is needed in the middle. In the case of transmission, an optical modem is used, which is mainly installed at both ends of an optical fiber and converts the transmitted data between electrical signals and optical signals. When optical broadband is installed in the home, optical modems are used to convert signals so that computers and other devices can recognize these signals. Now optical modems connect phones, TVs, broadband, routers and wireless Internet access.
2.Optical fiber transceiver
Optical fiber transceiver is a kind of photoelectric conversion equipment that exchanges short-distance twisted-pair electrical signals and long-distance optical signals. The optical signal is input from the optical port and the electrical signal is output from the electrical port (RJ45 crystal head interface). The process is to convert electrical signals into optical signals and transmit them through optical fibers. At the other end, the optical signals are converted into electrical signals, and then connected to routers, switches and other equipment.
According to the transmission distance, they can be divided into single-mode and multi-mode transceivers. ①Single-mode optical fiber transceiver: the transmission distance is between 20 kilometers and 120 kilometers; ②Multi-mode optical fiber transceiver: the transmission distance is between 2 kilometers and 5 kilometers.
In the transmission process, fiber optic transceivers must be used in pairs, suitable for distances over 100 meters, each indicator light represents a different meaning, 1000-when it is on, it represents 1000M rate, 100-when it is on, it represents 100M rate; FX- When it is on, it means that the pigtail is connected, and when it is flashing, it means that data is being transmitted;FX LINK/ACT—when it is on, it means that the network cable is connected, and when it is flashing, it means that data is being transmitted; when it is on, it means that the power cord is connected; TX LINK/ACT— -When it is on, it represents the full-duplex rate, and when it is off, it represents the half-duplex.
3.Photoelectric switch
Optical switch is a kind of network transmission relay equipment. The difference between it and ordinary switch is that it uses fiber optic cable as the transmission medium.It uses fiber channel with higher transmission rate to connect with the server network or the internal SAN network to make the whole The network has a very large bandwidth, so the transmission rate is faster and the anti-interference ability is stronger.
There are 2 optical 2 electric, 4 optical 2 electric, 8 optical 2 electric and other photoelectric switches. 4 optical 2 electric means 4 optical fiber input ports and 2 RJ45 network port output, which can support 100M and Gigabit networks, suitable for large enterprises Multiple optical fiber transmission.