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How Do Security Cameras (CCTV) Work?

How Do Security Cameras (CCTV) Work?

A security camera is a recording device that allows you to monitor your home or property while you’re away. The footage from these cameras nowadays can be viewed via smart devices such as smartphones, tablets, or computers. With the rising crime statistics, cameras offer you an additional layer of protection against burglaries and related crimes such as vandalism and home invasions. There are wireless and wired cameras. Many wireless cameras, however, still require to be plugged in or are battery operated.

Components of The Security Camera System (CCTV)

Components of The Security Camera System

Prior to purchasing a security camera, it is important to understand its components: there are four integral parts to every security system: the camera, the recording system, the monitor, and the software.


The camera is the main part of any security system. There are two types of cameras: internet protocol (IP) and analog. Most systems today use the IP camera.

Video Recording System

There are two types of recording systems, an NVR-network video recorder and a DVR-digital video recorder. DVRs are more popular these days, but NVRs tend to be more compatible with IP cameras, so they are the better choice.


A camera’s features are worthless without a monitor to view the security footage. For cameras that have 1080p or 4k resolution will require an HD monitor to fully take advantage of this feature and see all the details recorded.


VMS-video management software is the brain of your security system. It will allow you to manage your recordings. It is important to choose software that is compatible with your NVR or DVR technology and that it is user-friendly.

Wired vs. Wireless Security Cameras


Wired Security Camera

Wired security cameras transmit signals using wires connected to a local hub. These wired cameras are connected to electrical power sources via cable. The footage can then be viewed locally in real-time or after the fact. The footage can also be sent out to a specific network to be viewed from there. This makes these cameras more reliable, their picture clearer, and nearly impossible to hack.


Wireless Security Camera

The power source for a wireless camera is a Wi-Fi connection, and their footage is transmitted wirelessly onto a cloud server. Wireless cameras often come with extra features such as night vision, 2K HD video, two-way audio. Unfortunately, many modern wireless cameras are battery-operated, which makes them not always as reliable as wired cameras. They are also more prone to hackers.

Analog Security Camera vs. Wi-Fi

Analog security systems are more affordable and reliable. However, with the Wi-Fi system, you can view your footage in real-time, your picture is clearer, and you can store the footage for later viewing on a cloud. Wi-Fi cameras are more expensive, which makes the analog system still a viable option for many.

Analog Security Cameras

Analog Security Cameras

Analog security systems need to be fully wired, and this could mean that installation may be more complex and may even require a professional. Although reliable and safe, analog cameras lack many of the features provided by Wi-Fi security systems.

Wi-Fi Security Cameras

Wi-Fi Security Cameras

Wi-Fi security cameras offer the most advanced smart technological features that allow you to tailor the system precisely to your needs. It is flexible, and its AI capabilities make the system useful and user-friendly. However, this also means that you rely 100% on your Wi-Fi connection, and this can be tricky at times.

How Do Wired Home Security Cameras Work?

How Do Wired Home Security Cameras Work

Wired security cameras are common and traditional surveillance tools. They are connected to the camera and the monitor by cables which makes them safe and dependable. The cameras are physically connected to on-site video storage, either a DVR or NVR. The camera has a cable running from the camera itself to the power source and the footage transmitter or monitor. These wired security cameras are not connected to the internet but can be connected to the ethernet for remote viewing via a wire. Due to all the wires involved, the installation process can be difficult to manage, and an expert is often called upon to install the wired security system.

How Do Wireless Security Cameras Work?

How Do Wireless Security Cameras Work

Wireless security systems are easy to install, you simply follow the setup instructions, user-friendly, anyone can do it. Wireless cameras are perfect for people new to the surveillance world who are looking to dip their toes in the water. These cameras rely on Wi-Fi or similar networks to be operational. Wireless cameras are also easy to move from room to room and can be easily transported to wherever you move to.


There is no time like the present to give yourself the gift of peace of mind. Before settling for any security system, it is important to weigh your options and consult with a professional who will inform you of all the available options and help you find which one is best to keep you safe.

Contact Forbel Alarms today to learn more about security cameras today!



How to install a security camera?

This question can be answered only after you’ve identified what type of camera system you will require: wired/wireless, indoor/outdoor. Once the decision has been made, it comes down to cost: if you install your camera DIY or want a professional installation. Regardless, it is always a good idea to do your research and consult with a professional.

Should a professional install my security cameras?

A professional can guide you and provide you with the right information that can get you to make the perfect choice according to your needs. In the cases of wired cameras, a professional is recommended since the installation process can be challenging.

Do security cameras record all the time?

This depends on many factors, whether you have a wired or wireless system or an additional SD card that can save the footage if you have a computer that the footage is recorded. But mainly, it depends on the settings of each system, many security systems today have motion detecting capabilities and only record when those are triggered.

How long does footage stay on security cameras?

This is linked directly to the type of surveillance camera in question. This depends on whether the camera is set to record 24/7, motion-activated, or how much recording space is available. For example, most businesses keep their footage for 30-90 days, whilst most security systems can store footage up to a week or two at a time.

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