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NVR vs DVR Knowing the Difference
What is NVR VS DVR ?
NVR vs DVR compares two types of digital video recorder systems. NVR systems encode and process video data at the camera, then transfer it to the recorder for storage. DVR systems process data at the recorder and with an analog camera to convert the footage to digital format. NVR systems are most compatible with IP cameras, but DVR systems are with CCTV cameras.
The NVR vs DVR debate comes down to your specific security needs. If you have an existing analog CCTV system, a DVR is the best option for upgrading your system to digital. However, if you’re starting from scratch or looking to upgrade to HD security cameras, an NVR system is the way to go. When choosing between NVR vs DVR systems, you must consider your long-term security needs. NVR systems are scalable and can accommodate a growing number of cameras, while DVR systems have limited expandability.
Digital Video Recorder (DVR)
Although the DVR system is older due to its analog functions and wired format, advancements in high-definition imaging in recent years have made its image quality more comparable to that of an NVR system. Yet, DVR-based video surveillance systems are still priced lower than NVR systems. Although this may be an enticing advantage to some, it’s important to examine the features that may be tradeoffs for that lower price point.
Network Video Recorder (NVR)
Pros and Cons of NVR vs DVR
- Compatible with analog systems or CCTV systems
- Use coaxial cables to send video footage
- Need AD Encoder to process raw data
- Less expensive than NVR
- Less complex setup than NVR
- Coaxial cables don’t have power; use a second power source.
- Audio limitations, as coaxial cables, don’t support audio transmission
NVR (Network Video Recorder)
- Compatible with IP cameras, which are wireless or connected to a network cable
- Digital system used for storing and viewing footage – data sent to the camera before sent to the recorder
- Cameras connected to NVR use an ethernet cable, no need for another power cable
- Advanced hardware on IP cameras allows image and audio recording, and potential intelligent video analytics
- Power over Ethernet, or PoE technology allows for only one cable for power, video, and audio transmission
- Higher storage capacity with footage uploaded to cloud-based servers
- Video and audio recording capabilities
- Remote accessibility
- Updating NVRs is costly
- Opening the PoE switch for remote accessibility opens the system up to security risks
NVR VS DVR Summarized
- Is there a security camera system already installed?
- Can a new security camera system build upon it?
- How many areas need surveillance?
- Does your security need audio?
- How much manpower to install the security camera system?
- Is there a way to limit the cables and hardware required for camera installation?