Currently, there are three major methods for surveillance video transmission, including coaxial cable, un-shielded twisted pair (UTP) cable, optical fiber and wireless…etc. Each of methods with cons and pros, can suitable for different applications, varies video transmission distance or differ image quality, with several years experience in installation of video surveillance cameras, herein we explain three main methods for video transmission.

We herein simply explain the function of fiber optical transceiver in surveillance systems.

Let’s imaging, we have a large park need to install surveillance cameras, all cameras need to connect to central monitoring room for displaying capture images at monitor. If the park is very large and every cameras have a long distance to reach the surveillance center, some cameras are near, some cameras are far at 1200 meters.