How to choose a suitable video optical transceiver? Video optical transceiver is a device that converts 1 to multi-channel analog video signals into optical signals through various encodings and transmits them through optical fiber media. Since the video signal is converted into an optical signal, two technologies, analog conversion and digital conversion, are used. Therefore, video optical transceivers are divided into analog optical transceivers and digital optical transceivers. The principle of the optical transceiver is to modulate the signal to the light and transmit the video through the optical fiber.

Optical transceiver purchase precautions Analog signal; digital signal < divided from the signal sent to the optical fiber, optical transceiver can be divided into analog optical transceiver based on analog technology and analog optical transceiver based on digital technology.

The working principle of the analog optical transceiver is nothing more than modulation and demodulation, filtering and signal mixing. Whether it is LED or LD, its photoelectric modulation characteristics are not linear. In the process of signal transmission, inevitable problems such as distortion and interference will inevitably occur in analog processing, and there are insurmountable technologies in large-capacity transmission and multi-service hybrid transmission. difficulty.