NVR security camera systems incorporate the newest technology to provide an enhanced, feature-rich security system. Coaxial cables also don’t natively transmit an audio signal, and DVR recorders usually have a limited number of audio input ports. The analog signal results in a lower quality image compared to NVR systems. DVR systems also have less flexible mounting solutions, because routing coaxial cable can be more difficult in tight situations and a power outlet is required for each camera.Īs we’ve discussed, in DVR systems the cameras transmit analog video via the coax cable directly to the recorder and images are processed at the recorder level.
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Whereas NVR based systems can integrate both wired and wireless security cameras, DVR systems can only use wired security cameras. Each camera connection will need a splitter that supplies power to enable cameras to function.ĭVR security systems are less flexible than their NVR counterparts in terms of camera type and mounting options. Also, in a DVR system, the recorder doesn’t provide power to the cameras. In comparison, an NVR system only requires that each camera connects to the same network. Specifically, in a DVR system, the user must connect every camera directly to the recorder. DVR systems also have different requirements when it comes to the recorder. Lower quality cable will result in a signal loss at shorter distances.ĭVR recorders rely on a hardware chipset known as an AD encoder, which is responsible for processing the raw data streaming from the camera into legible video recordings.
Bunker hill security dvr lan setup install#
The cables separate each end to provide the separate functions. As such, you’ll need to install your DVR recorder near a power outlet. As the coaxial cable doesn’t provide power to the camera, there are actually two cables included within one covering – a power and video cable.Although the use of coaxial cable may not seem significant, it does have some limitations: The camera connects to the DVR recorder via a coaxial BNC cable. The advantage of this system is the reduced complexity required of the camera when compared to an NVR system. In a DVR system, the analog cameras stream an analog signal to the recorder, which then processes the images. While you can mix and match cameras in your home security system, there is less flexibility in the type of cameras you can use with DVR systems. Most of the cost savings found by using a DVR system is due to the camera. The cameras used by a DVR system must be analog security cameras, better known as CCTV cameras. The lower price point is an attractive advantage of DVR systems, but what are the tradeoffs? To answer this, we need to break down each of the components of a DVR system.
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You’ll probably notice that DVR based security systems are priced lower than NVR systems. It’s important to note that a DVR based system is a wired security system, whereas NVR systems can be a wired or wireless system.Īdvances in analog high definition within the last five years have reduced the gap in resolution between the two systems. Most NVRs are used with IP cameras whereas DVRs are used with analog cameras. As DVRs and NVRs handle the video data differently, they require different types of cameras. DVR systems process the video data at the recorder, whereas NVR systems encode and process the video data at the camera, then stream it to the NVR recorder which is used for storage and remote viewing. The difference between NVR and DVR is how they process video data. DVR stands for Digital Video Recorder, whereas NVR stands for Network Video Recorder.
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DVR – The BasicsĪt the core, both NVR and DVRs are responsible for video recording. In this article, our security experts will break down the differences and detail the pros and cons of each so that you can make an informed decision. Understanding the difference between DVR and NVR is essential when evaluating security systems. Both perform the same function but differ in how and the type of cameras used. When shopping for a security system, you’ll need to choose between a DVR or NVR recorder.