Number of 4mp cameras on a Dahua 16 channel NVR

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JPmedia

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Sep 11, 2024
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To be specific, I'm wondering how many 4mp cameras can be run at 30 fps mainstream with the average 5216-16P NVR? At what point in number of cameras do you run into bandwidth issues? I seem to recall in another thread how some have had issues when you get to, I believe 10 and above?
 
Its more about the bitrate than FPS

I run 30FPS on everything, and run (8) 4MP cams at 10288, (3) 4K cams at 16384, and the (1) new Triple Lens 2MP cam at 8192. I'm getting close to max on the 5216-16P-4KS2E. I can probanly squeeze one more
 
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bigredfish said:
Its more about the bitrate than FPS

I run 30FPS on everything, and run (8) 4MP cams at 10288, (3) 4K cams at 16384, and the (1) new Triple Lens 2MP cam at 8192. I'm getting close to max on the 5216-16P-4KS2E. I can probanly squeeze one more
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Thanks for the info. I currently have 14 cameras (7) Lorex 8mp cams (H265 codec 20fps) (1) 4KX (H264H 20fps) (3) Lorex 4mp PTZ cams (H264H 30 fps) (1) Empiretech 4mp T54IR-ZE cam (H264H 20 fps) and (2) 2mp B52IR-Z12E (H264H 30 fps).

After I added the 11th or 12th camera, I noticed lower bitrates and pixelization during motion. Now this is on the Lorex NVR, which I believe may be running SMD on at least six of the 8 mp cameras. I tried disabling the person and vehicle detection on those cameras, but it really messes up the preview on the monitor - motion becomes very jerky on the screen.

I plan on swapping out the remaining Lorex 8mp cameras with a mix of 4mp/2mp Andyland cams. I just don't have enough light to run 4K cameras.

I will move most of the cameras to the new Dahua NVR (7) 4mp cams, (3) 2mp turret cams, (1) triple lens cam and (2) B52IR-Z12E cams - 15 channels total. I will keep the Lorex for the 3 Lorex PTZ cams since the NVR works well with them. I have it so I may as well use it until I can upgrade.

I'm hoping the 15 channels used on the Dahua will have enough bandwidth
 
1- I can't speak to the real capability of that Lorex unit. They were typically less powerful than their Dahua counterparts.
2- H.265 will eat it up. It sucks and doesnt work. Turn it off
3- SMD is useless for the most part. IVS is far superior and makes SMD a redundant resource hog. But yeah running it WITH IVS simultaneously WILL create various issues. I have thread where I proved that around here somewhere...
 
bigredfish said:
1- I can't speak to the real capability of that Lorex unit. They were typically less powerful than their Dahua counterparts.
2- H.265 will eat it up. It sucks and doesnt work. Turn it off
3- SMD is useless for the most part. IVS is far superior and makes SMD a redundant resource hog. But yeah running it WITH IVS simultaneously WILL create various issues. I have thread where I proved that around here somewhere...
Click to expand...
I'm not too worried about making changes to the Lorex NVR, since it will only be running 3 Lorex PTZ cameras which don't support the person and/or vehicle detection. I just wanted to keep them until I can replace them. They work great with together and there are no bandwidth issues with them. They will be running H264H codec and 30 fps - the default setting.

I'm most concerned about the bandwidth on the Dahua NVR with (7) 4mp cams, (3) 2mp turret cams, (1) triple lens 2mp cam and (2) B52IR-Z12E cams - 15 channels total
 
Yes preferably. Like ALL settings.

That said, the new AI enabled NVRs could be useful in certain scenes where you want both IVS (running on the camera) and say VMD or face Detection (running on the NVR) simultaneously.

I say "could" as I've yet to actually see this working and how well in real life.
 
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Not sure what camera that is? But typically NTSC=30fps and European PAL=25fps

It doesn’t really make much difference. Just make sure your NVR and cameras are using the same standard
 
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