ABSTRACT
Many analog cameras have been installed during recent years, and they will continue to be functional for the years to come. The average life expectancy of an analog surveillance camera is 5-7 years, but some last even longer. In many installations, the coaxial cable is the most expensive part of the installation. Once installed, there is therefore often limited incentive to recable with category 5 (CAT5) or category 6 (CAT6) cables to enable installation of a network camera. However, the recording device in an analog system-most often a digital video recorder (DVR) but sometimes even an older videocassette recorder-usually fails long before the camera component. This is where the video encoder comes into play.
