The WD Purple drive is designed specifically for 24/7 DVR and NVR surveillance solutions and is optimized with AllFrameâ„¢ technology for system playback and performance. WD Purple drives support 3x the workload rating of desktop drives, making them more capable of handling the higher demands of video surveillance systems.
Higher capacity WD Purple drives allow you to store more footage, more high-definition video, and more high-quality frames per second. WD recommends 4TB or greater for your DVR or NVR surveillance solution.
There are three main tasks HDDs do besides storage: read data, write data, and transfer data. Generally, surveillance HDDs are turned on 24 hours/7 days a week. They write data and store footage from security videos most of the time. They transfer them only a small portion of the time. Regular HDDs are designed for being used mostly to read data and are not typically tested for use in a 24×7 surveillance environment with the continuous demand of writing videos. Video surveillance HDDs are designed to endure heavy writing, from several closed-circuit television (CCTV) cameras simultaneously, consume low power, and endure environments with a wide range of temperatures.
In short, DVR-based CCTV systems are relatively simple set-ups owing to older technology; whereas, NVR-based CCTV systems are the latest technology, and better for business and complex usage. DVRs are used with analog CCTV cameras while NVRs are used with internet protocol (IP) cameras. In a DVR, the video is encoded and stored in the DVR, whereas with an NVR, this happens in the camera and the videos are then stored in the NVR for remote access. A DVR-based security system is usually wired and each camera needs to be connected directly to the DVR. NVR-based security systems are wireless and all cameras can be connected to a single network. In a DVR-based system, you’ll have to consider extra wiring for recording audio. NVR CCTV systems are highly flexible and easy to scale up when your requirement grows larger.
Choosing the right CCTV camera system for your home would depend on several factors like where and how many cameras you need to set up, how much footage will you store and for how long, and how would you need to access your stored footage. You can consult a CCTV provider to get detailed guidelines on the system based on your unique needs.
Shops come in many shapes and sizes with different blind spots and risk-prone zones. If the shop is large then the number of cameras and the storage capacity required goes up. For chain stores, you may need to remotely access footage from all stores at a central location and easily replace a faulty part without interrupting the entire system. You can determine the right CCTV camera system for your business after clearly understanding all your needs and variables. Get free advice from a CCTV provider to arrive at the best surveillance solution for you.
It all depends on the shape and size of your space. For maximum effectiveness, CCTV cameras should watch over every entry point to your space like the front door, back door, windows, balconies, etc. You may also need some overlooking the main road or garden. For shops, CCTVs need to cover all the aisles and corners besides safeguarding the cash counters. Thinking strategically, you would also want to hide away some cameras in unlikely places where they cannot be easily located.
Yes, through the USB port, which is on the back of the DVR/NVR. For more details, please see our Backup section in the User Guide Book to have more information.
This depends on the number of cameras recording at the same time and the level of quality/detail they record at. This will also depend on how big your hard drive is. If you require us to spec up a system to record for a certain amount of time please contact our support team. With our recorders, you can also save recording space by only recording when motion is detected.
A host of complications like electrical interference, power fluctuations, equipment malfunction, etc. can cause CCTV footage to flicker. Do check if flickering is specific to a particular camera or monitor to see if the problem lies there. Check if cables are connected and routed correctly. The source of the problem can be difficult to track and you may need the help of a professional to troubleshoot. Sometimes, it is critical to capture specific moments to unravel a crime and that’s why WD PurpleTM HDDs come with special AllFrameTM Technology that instead of stopping at an interference, simply jumps to the next frame to continue capturing footage.
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