PTZ camera in focus

A Sony BTC-X400 in atmospheric backlight. The only connection to the control room is a network LAN cable, which ensures the power supply via PoE (Power over Ethernet) and transmits both image and control impulses. Of course, our cameras have other connections for image transmission, such as SDI and HDMI, if this is desired due to existing technology. However, these connections then require a separate power supply via power supply unit, so that three cables have to be laid per camera instead of just one (power, image, control).