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MJMarcela Johningcctvms.hashnode.dev

How Does CCTV Surveillance Work?

Dec 20, 2025 · 16 min read · CCTV Surveillance Explained: Understanding Video Surveillance Technology in Simple Terms A small business owner stared at three vendor proposals for CCTV surveillance systems. Each document contained technical terms like DVR, NVR, IP cameras, PoE, an...

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