What is CCTV and How does it work?

CCTV, also known as closed-circuit television is a method that lets you keep an eye on the happenings in and around your business. It allows you to view live events with monitors or cameras, and recorders save footage to be used in the future. Do not make the mistake of thinking that the CCTV monitor for a normal television. It does not receive broadcasting content, but only footage from security cameras installed within the premises.

While CCTV technology has been around since the 1970s but recent advancements have improved its effectiveness in capturing criminals and bringing them before the law. Consider the various parts of a CCTV system and how they work together.

Commercial Security Cameras

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Security cameras’ purpose is to take footage, especially in any vulnerable or high-crime places in and around your building. There are several security camera options to choose from:

Wired security cameras make use of cables to transmit footage and conduct video surveillance. However, the signal may weaken when the transmission range is greater than 300 meters. The use of the correct networking cables, switches, and signal boosters, you can overcome this problem. Multiple cameras can be connected to a single monitor in a security area.

Analog cameras are among the oldest type of CCTV camera and are still in use today. They provide basic functions and store video onsite.

IP cameras (Internet protocol cameras) serve the same purpose as analog cameras, Learn More but offer far superior capabilities. IP cameras have sharper pictures with higher resolutions, and flexibility features such as remote zooming and repositioning. You can also access the video via the internet using a browser. You will be notified of any unusual camera footage for example, like a movement in your workplace at 3:00 am. You can also access the footage on any device, including smartphones and computers. The major drawback of IP cameras is their high cost.

Structured Cabling Services

Every CCTV system requires a certain amount of cabling, not just ones with wireless cameras. Cables link different parts of the equipment such as recorders, monitors, modems, and wired cameras.

Video Recorders

If you CCTV camera catches something that is of interest, a recorder allows you to revisit it in the future. It is possible to set cameras to capture everything they capture, but that consumes a significant amount of space. You might want to make your cameras record certain times of the day or when they detect movement. Two options are available available for video recording: NVR and DVR.

DVRs, or digital video recorders, are the latest alternative to analog recorders which make use of videotapes. DVRs can record video from analog cameras in a digital format at the resolution you want and frame per second. If the hard disk becomes full, new images will be recorded over the older footage first.

NVRs (or network video recorders) work similar as DVRs, but they are compatible with IP cameras. Your cameras and NVR connect through the network switch or router. A NVR is accessible via a web browser or mobile app.

A Note regarding hard disks: Be sure to select surveillance grade hard drives for your NVR or DVR. They are constructed with stronger components than standard computer hard drives , so they can run 24/7 in the event of need.

Display Unit

To watch live or recorded footage from your security cameras, you need to connect your DVR or NVR to a TV or monitor. The display unit you use for your CCTV system could be a simple monochrome or an HD color display. It is possible to view your footage remotely using an IP camera, if you own one.

Install CCTV throughout your Mid-South Business

CCTV can be a great advantage for your business, whether you’re looking to stop vandalism and theft, discourage burglaries, track the flow of traffic and keep an eye on employees or keep track of your staff. State Systems can expertly design and install the CCTV system for your Tennessee, Arkansas, Mississippi or Alabama business.


Whether you need basic analog wired cameras or you’re looking for the most advanced wireless IP cameras that have every feature that is modern, we can address your requirements. We also can help you solve issues with vandalism to cameras by providing dust-proof housings and blast-proof, bulletproof casings. Our vast selection of high-end and affordable CCTV products can be a great complement to your security efforts.

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