The transmission part is the image signal path of the system. In general, the transmission part refers to the transmission of image signals. However, in some systems, in addition to images, sound signals are transmitted. At the same time, because the control center needs to control the camera, the lens, the pan/tilt, the shield, etc. through the console, the transmission system also includes control. The transmission of signals, so the transmission part we are talking about here usually refers to the sum of the transmission systems formed by all the signals to be transmitted.