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1. Considering what CCTV to buy?!

Then our series of posts «all you need to know about CCTV» will be useful for you. No difficult definitions, no long and boring texts, all the info in a short, clear and user-friendly guide!


Nothing to wait, let’s start with the basics about CCTV!


At its simplest, CCTV (closed circuit television) is the use of video cameras for security purposes.


In general, there are two categories of CCTV systems: analogue and IP based systems.


An analogue system is the traditional, wired CCTV system that transmits a video/audio signal via a coax cable to a recorder/monitor. Such camera would normally have 2 cables – a power cable and a coax cable.


An IP based system transmits a video/audio signal over network wiring (e.g. cat5/6 cable types), the same cables as you plug into your laptop or PC to connect to the Internet (unless you use Wi-Fi). IP cameras can be wired, wireless or battery-powered.

  • Wired IP cameras have either a two-cable system, comprising a power cable and a network cable, or a single network cable which supplies both power and transmits the signal (so called PoE system, which we will talk about later).

  • Wireless IP cameras have only a power cable whereas the signal is transmitted via a radio signal (e.g. Wi-Fi).

  • Finally, battery-powered IP cameras have no cables or wires at all, the power to a camera is supplied by a battery/accumulator and the signal (video/audio) is transmitted via a radio signal.


Now that you know the two main types of CCTV systems and the main wiring options, we will consider each of those closer in the next posts.


Any questions – let us know!


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Armsec UK Limited

201 Ecclesall Road

Porterbrook House

Sheffield

S11 8HW, UK

Tel: +44 (0) 114 3035190

Tel: +44 (0) 7907038759

Email: info@arm-sec.co.uk

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