Analog video security systems are reliable, cost effective, and user-friendly. Companies who need basic surveillance, with good quality video, at a limited number of locations will find Analog CCTV to be a good choice.
Typically, Analog systems are limited to VGA resolution cameras, but when integrated into a hybrid Analog-SDI system you have an option to place an HD-SDI camera where high resolution is needed.
Hybrid Analog-IP systems are also available and are often the easiest way to transition to IP with an existing Analog system.
A Typical Analog Surveillance Camera System