The function of optical terminal is for remote transmission of data, audio and video long-distance transmission, with a long transmission distance, no delay, no interference and other characteristics.

　　Optical transceiver in the monitoring of industry application is very extensive, optical transceiver and differentiation, the role of different types of optical transceiver is also different, such as audio, data, the switch quantity, such as Ethernet and optical transceiver product performance is stable and reliable, the optical transceiver machine veneer product design small size, easy to use, digital optical transceiver signal is converted into analog signals, The reason for the optical end machine is that the optical transmission distance is long and the loss is small, while the common cable transmission loss is great. The power supply of the optical end machine is AC220V video optical end machine, which is more convenient to obtain power and has high reliability. In the project, the optical end machine powered by AC220V power supply should be selected as far as possible according to the situation. Thus, the working performance and technical indicators of the optical terminal will not be affected, and the optical terminal will not be restarted repeatedly and the transmission of monitoring video and audio signals will not be interrupted due to the instability of the power grid.