Comparison between Wired & Wireless Security Systems - Security Smart UK
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27 October 2022

Comparison between Wired & Wireless Security Systems

The wired camera security system is regarded as the traditional video surveillance solution. As the name implies, this system requires cables for power, internet connection, and video transmission. Wired cameras transmit video and audio signals through a cable to the central management system. With the introduction of Power-over-ethernet (PoE) technology, both power and internet connection will be realised with one single cable. It’s like killing two birds with one “cable.” IP cameras that support PoE technology, also known as PoE cameras, are able to send the video feed they record to the network while receiving both data and power from that very same PoE switch.

Networking Environments

The most important point is to evaluate your current network and power situations. The wireless signal strength, or the scope of coverage, is tied to various factors like the router, the interference, the route signals have to take to get to your cameras, and so on. Besides, the existing power design also has an impact on your future security system decisions.

Application Scenarios

Generally speaking, wireless or Wi-Fi IP cameras are widely used for non-professional indoor home security, and wired cameras are installed for outdoor surveillance systems. When planning the IP cameras outside, make sure the models you purchase are weatherproof. In addition, wired security camera systems are normally for homeowners or businesses with relatively permanent uses, while wireless systems are ideal for renters or businesses in temporary locations.

Scale & Scalability

The size of your property and the number of cameras needed will determine your decision between wired and wireless security cameras. If you want to install one single IP camera for home monitoring, you can pick a wireless Wi-Fi IP camera. Just make sure that the wireless IP camera is installed within coverage of your Wi-Fi router. However, many homes or business owners with large properties want comprehensive coverage with seamless performances. A wired system that can support and link all the cameras is recommended. Furthermore, PoE technology makes it more flexible when adding, moving, changing, or temporarily deploying security cameras, which is ideal for future upgrades. Check the picture below to see how PoE cameras are deployed.



Pros of Wired Cameras

Reliable and Stable Connection: Wired security cameras including PoE cameras are not susceptible to interference and jamming from wireless signals due to the physical wired connection.
Consistent Video Quality: A stable wired connection will lead to strong video and audio signals to record high-quality video.
Constant Power: With wired power, the cameras will keep recording as long as the electrical grid of the building remains sound.

Cons of Wired Cameras
Require Professional Installation: Since there is cabling work, professional installation is most likely necessary.
Lack of Flexibility: After a wired camera is tethered to a specific location, it may take a lot of work to move it to another location.

Pros of Wireless Cameras

Easy to Install: The deployment of wireless cameras is relatively simpler since there is no need to run network cables behind the walls.
High Flexibility: It’s easy for the owners to redeploy those wireless/ Wi-Fi cameras or to scale up.
No Wire to Cut: No chance for intruders to cut the wire because there is none.

Cons of Wireless Cameras

Unstable Video Signal: For signals sent over Wi-Fi or other wireless networks, it’s more apt to lose connection or suffer interference.
Cybersecurity: There is always vulnerability to Internet connectivity, so it will be less secure than a wired option.
Power Failure: Wireless cameras are prone to losing charge when encountering batteries running out.