Before IP-based networks, the security industry relied on Closed Circuit TV (CCTV) systems, which put the "closed" feature front and center. These coax-based, stand-alone, analog video systems were electronic wonders.
Imagine managing thousands of cameras via pairs of separate video, power, and control cables, all physically brought back to a centralized matrix switch, and then — with more cables — sent out to individual monitors and displays to various locations throughout a facility.
This article appeared on Oct. 22, 2020 on TechRadar.
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