I recently came across a situation where a leading brand manufacturer discontinued some of their IP cameras and no longer supported them. The NVR made by the same manufacturer did not support the new IP camera models even with an upgraded firmware and they were basically told they would have to replace the system with updated cameras and NVR. The integrator was obviously upset and no longer wanted to continue using the brand. This got me think further about the fragmentation within the IP camera technology and the possibility of future problems that may exist. These concerns cover both IP cameras and NVRs.
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Within the world of analog even if a manufacturer discontinues a camera model or even a line of cameras the installer can use virtually any other brand of analog camera to replace the cameras and continue operation but with IP it’s not so simple. The NVR must support the cameras you would like to use and things are not so cut and dry. No matter the changes that occur within the analog camera in regards to the CCD, DSP or format. The systems are all interchangeable. This leads to long term support and usability.