When it comes to securing your home or business, one of the robust options available is a wired security system with a Network Video Recorder (NVR). While wireless systems have gained popularity due to their ease of installation and flexibility, wired systems with NVR offer several advantages that make them a preferred choice for many. However, they also come with certain drawbacks. In this blog post, we will explore the pros and cons of a wired security system with NVR to help you determine if it’s the right fit for your security needs.

What is a Wired Security System with NVR?

A wired security system with NVR involves security cameras connected to the NVR via Ethernet cables. The NVR processes and records video footage from the cameras, which can then be accessed for live viewing or playback. This setup typically involves high-definition IP cameras, providing clear and detailed video recordings.

Pros of a Wired Security System with NVR

1. Stable and Reliable Connection

  • Consistent Performance: Wired systems provide a stable connection that is not prone to interference from other electronic devices or signal obstruction. This ensures consistent video quality and reliable performance.
  • No Wireless Interference: Unlike wireless systems, wired systems are immune to interference from Wi-Fi networks or other wireless devices, which can cause signal drops or degradation.

2. High-Quality Video

  • Superior Resolution: Wired IP cameras typically offer higher resolution compared to many wireless cameras, resulting in clearer and more detailed video footage.
  • Better Bandwidth: Ethernet cables can handle higher data transfer rates, allowing for smooth transmission of high-definition video without compression, ensuring better video quality.

3. Enhanced Security

  • Reduced Hacking Risks: Since wired systems are not connected to the internet for transmission, they are less vulnerable to hacking attempts compared to wireless systems that rely on Wi-Fi.
  • Secure Data Transmission: Data is transmitted over physical cables, reducing the risk of interception and ensuring the integrity and security of the video footage.

4. Scalability

  • Expandable System: Wired systems can easily be expanded by adding more cameras to the NVR. This is particularly beneficial for larger properties or businesses that require extensive surveillance coverage.
  • Consistent Power Supply: Wired cameras receive power through the Ethernet cable (Power over Ethernet, PoE), eliminating the need for separate power sources and ensuring continuous operation.

5. No Battery Dependency

  • Continuous Monitoring: Unlike battery-powered wireless cameras, wired cameras do not require frequent battery changes or recharges, ensuring uninterrupted surveillance.

Cons of a Wired Security System with NVR

1. Complex Installation

  • Professional Installation Required: Installing a wired system involves running Ethernet cables through walls, ceilings, or underground, which can be labor-intensive and may require professional installation.
  • Time-Consuming Setup: The installation process can be time-consuming, especially in large or complex properties.

2. Limited Flexibility

  • Fixed Camera Locations: Once installed, wired cameras are not easily moved or repositioned. This can be a disadvantage if you need to change the camera’s location or adjust the coverage area.
  • Infrastructure Constraints: The placement of cameras is limited by the availability of cable routes and power sources, which can restrict the coverage options.

3. Higher Initial Cost

  • Upfront Investment: The cost of purchasing and installing a wired system with NVR is generally higher compared to wireless systems. This includes the cost of cables, NVR, and potential professional installation fees.
  • Maintenance Costs: Over time, maintaining and upgrading the system can also incur additional costs, especially if cables need to be replaced or rerouted.

4. Visibility of Cables

  • Aesthetic Concerns: Exposed cables can be unsightly and may detract from the aesthetic appeal of your property. While efforts can be made to conceal cables, this can add to the installation complexity and cost.


A wired security system with NVR offers several significant advantages, including stable and reliable connections, high-quality video, enhanced security, scalability, and continuous monitoring. These benefits make it an excellent choice for those who prioritize reliability, video quality, and security.

However, it also comes with certain drawbacks, such as complex installation, limited flexibility, higher initial costs, and potential aesthetic concerns. Before deciding on a wired security system with NVR, it’s essential to weigh these pros and cons against your specific needs, budget, and property layout.

At St. Louis Alarm Company, we offer a range of wired security systems with NVR to meet your unique security requirements. Our team of experts can help you assess your needs, design a customized solution, and ensure professional installation for optimal performance. Contact us today to learn more about how we can enhance your security infrastructure.

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