Closed Circuit Television system is a very significant means used to monitor a situation at exposed and important places not only for security reasons, but also in terms of manufacturing processes, ensuring video surveillance, control operability and possibility to reduce final costs. CCTV systems are useful especially as a support of standard ESA systems. In certain special cases, they can even take over some of ESAS functions.
The main elements of black-and-white or colour CCTV include: cameras, monitors, video switches, multiplexers, video matrices, analogue and digital recording devices, communication paths (metallic, optical), or audio components. The necessary accesso-ries include all-weather camera covers, brackets, rotating heads for cameras, additional lighting in a visible and infrared light spectrum, etc.