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What is ONVIF in a CCTV Video Security System?

ONVIF  is a global and open industry forum with the goal of facilitating the development and use of a global open standard for the interface of physical IP-based security products - or, in other words, to create a standard for how  IP products  within  video surveillance  and other physical security areas can communicate with each other. ONVIF is an organization started in 2008 by  Axis Communications ,  Bosch Security Systems  and  Sony . [1]  -  https://en.m.wikipedia.org/wiki/ONVIF  
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What does NVR mean in a CCTV Camera System

Simple NVR-based camera system. A  network video recorder  (NVR) is a software program that records video in a digital format to a disk drive, USB flash drive, SD memory card or other mass storage device. -  https://en.m.wikipedia.org/wiki/Network_video_recorder Examples of NVRs in the UK... http://amzn.to/2aKU24Q
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Resetting a Sannce DVR System Password

Here are 3 currently available options to reset your Sannce CCTV DVR System. Go to the Sannce online support and read the FAQs… http://www.sanncegroup.com/index.php?case=archive&act=show&aid=202 If you are a techy person, you can reboot your Sannce DVR to factory settings over IP using your PC. Find out how here…   https://www.avforums.com/threads/sannce-dvr-system-reboot.1905253/ This solution is specifically for Sannce H.264 Standalone DVR G series Go to REMOTE SETTING to access setting interface. Select ADVANCED SETTING. Select MAINTENANCE. Choose REBOOT or RESTORE FACTORY PARA. Click EXECUTE. Source manual: http://www.sanncegroup.com/index.php?case=archive&act=list&catid=31&page=1 Feel free to ask for help with your Sannce DVR in the comment box below. ...and also please share if you found a solution.
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Welcome! Do you need help in CCTV Installation?

Welcome!  Do you need help in CCTV Installation? I was once a Sales Engineer with Panasonic Video Security Systems. I helped customers configure CCTV systems for their homes and businesses. Frequently Asked Question Here are the common questions that people ask for help. Which is the best CCTV system? How many cameras should I get? How to record footage and view later? Which cable should I use? Should I use wireless systems? I will list out more questions in the next post. You Should Know Then, there are things they never ask but must know. Do you need outdoor or indoor cameras? Do you need night vision Infra-red cameras? Do you know there are higher resolution cameras? What is DVR and what is NVR? How much disk space is required for recording? There are more questions and I will answer each one in the following posts. Resource Here's a good book you can start with: CCTV Surveillance, Second Edition: Video Practices and Technology Next Action
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