1. What is CCTV ? 2. Which type of Security Camera should I use ? 3. Is it difficult to install CCTV ? 1. What is CCTV Most people think that CCTV is a relatively new invention, but then again, many don’t...
Glossary of Terms for CCTV Equipment AC Adapter Alternating Current Adapter; when plugged to 240 volts/ 50Hz AC Power (usually 117V AC/60Hz in the United States) it produces 12V DC, 24V AC or others. "UL...