CCTV Surveillance System

Though most of our attention these days is focused on the transition to IP video technology, it's important to note that analog CCTV security cameras can still be highly effective for many surveillance applications, especially those on a budget. With traditional CCTV security cameras, the video signal is processed and transmitted in analog format for local viewing from one central monitoring location. But that doesn't mean you can't use analog cameras in an IP-based surveillance environment. Using IP video encoders and other equipment such as digital video recorders and hybrid DVRs makes it possible to leverage your existing analog cameras while migrating into the world of digital surveillance.


CCTV security camera

CCTV, or closed-circuit television, is a system that allows you to keep an eye on what’s going on in and around your business. Cameras and monitors enable you to view events live, and recorders archive footage for later reference. Don’t mistake a CCTV monitor for an ordinary television. It doesn’t receive publicly broadcasted content—only footage from security cameras installed on the premises.

CCTV technology has been around for decades, but improvements in recent years make it even more effective at capturing criminals in the act and bringing them to justice. Consider the various parts of a CCTV system and how they all work together.


Components Of A CCTV Video Surveillance System

A CCTV system will be based around a DVR or digital video recorder. CCTV cameras are connected to the DVR using cables and there will be some ancillary items such as a power supply for the camera

There's a lot that goes into a typical CCTV video surveillance system. While the cameras get most of the attention in the beginning, you also have other concerns, such as viewing, recording, and archiving the video footage, and the equipment required for carrying out those tasks. Here's a look at the basic components of a typical


CCTV cameras are the most important thing to get right and we have devoted quite a bit of space on our website to helping you make the right choice. We are always glad to offer help and advice if you are planning a CCTV system so pick up the phone and give us a call. We can have a look at your property using aerial images whilst talking through your specific requirements and select which cameras will best suit your requirements


The cable from the DVR to the camera does 2 jobs. It transfers video from the camera back to the DVR and it supplies 12 volt power to the camera. Video connection is via a BNC connector. If you are using CAT5 cable then the BNC connector will be part of the video balun. 12 volt power connections are 5.5mm jack plugs. At the camera end there is a DC plug, at the DVR end a DC socket into which the 12 volt power supply for the camera connects. For this reason you would normally locate the camera power supply next to the DVR unit. The DVR will be supplied with it's own 12 volt power supply.

DVR or digital video recorder

The DVR is the heart of the CCTV system. It takes all the camera inputs, arranges them on screen for live viewing and also stores footage onto a hard drive for viewing at a later date. Our DVRs record all the cameras regardless of what you are viewing live on your monitor. It is possible to view 1 camera at a time or several camera in various combinations depending on how many channels the DVR supports. We sell 4, 8 and 16 channel DVRs which are suitable for 4, 8 or 16 cameras respectively. They can be combined, so 2 16 channel DVRs could host a 32 camera CCTV system.


The monitor receives the signal sent by the camera and converts the signal into a picture on a television screen. At least one monitor must be provided at each viewing station in the CCTV system in order to see the view provided by the camera(s).


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