Dahua 5232-16p-EI

Timokreon said:
15 cams. Resolution of cams anywhere from 1920 to the 4k-T180 which is what, around 4,000?
220Mbps bandwidth used.
Cams I've tried to display anywhere from just 4 to the 16 display.
Zero AI functions enabled on the NVR, all AI is on the cameras themselves.
Click to expand...

5xxx-ei have 64 Mpx video decoding capability (at 30fps).
So it can display 16 cams at 4Mpx but only 8 at 8Mpx.

So each 8Mpx cam (each 4K or 180 cam) will use 2 channels of 4Mpx decoding capability.

h264/h265 is no difference (you can revert back to h265 or smart codec). Resolution or frame rate will limit you.

if you want to display all 15 cams at once, try to limit frame rate to half on 2-3 cams to 15 fps. Especially on 8Mpx cams
 
  • Like
Reactions: JDreaming
Andy and Dahua are looking into what might be the cause of this.
I'm guessing either a firmware issue with the older cameras, or the HDMI output isn't working properly.
 
  • Like
Reactions: JDreaming
Tried switching POE ports from a camera that doesn't scramble on display with one of the older cams, a 5442. Once switched, the 5442 scrambled at the new display with the different POE port.
Really looks like something about the older cameras doesn't work with the new NVR.
 
Yeahbut you said "Logging into the NVR with a laptop, the 16 cam display works fine. "

That takes me back to a problem with the HDMI output.....
 
  • Like
Reactions: JDreaming
bigredfish said:
Yeahbut you said "Logging into the NVR with a laptop, the 16 cam display works fine. "

That takes me back to a problem with the HDMI output.....
Click to expand...
True. Perhaps the firmware on the NVR for the HDMI output doesn't play nice with the older cameras? By logging in directly with a laptop, bypassing the HDMI.
I don't know. It's just really strange only those cameras get scrambled on the display through the HDMI, but fine with the laptop.

:shrug: We'll see if Andy and Dahua can figure it out. I'm almost to the point of bringing the 4ks2e back online and calling it good for awhile.
 
SOunds like the NVR is fine. Sounds like somewhere in the HDMI chain there's a problem. Output/cable/monitor? I dunno
 
  • Like
Reactions: JDreaming
I also bought a non poe version of the NVR5208-EI during the weekend. But I planned to use it just as a simple recording device for the camera and use smart pss for viewing from pc.
 
  • Like
Reactions: bigredfish
Tried one last thing, updating the older cams firmware to the latest, and probably last one Dahua does since they are EOL.
Same result.

I want to thank Andy and Dahua for their help. Also everyone here on the forum for your help. Very, very appreciated.
Perhaps at the end of the day I just have some obscure setting that is messed up and I just don't see it? But considering I have the same setup on the 4ks2e and zero problems...:confused:
 
  • Like
Reactions: looney2ns and JDreaming
Switched everything back to the 4ks2e. Same cables, monitor, etc... booted up and everything is running perfectly. :)

I really hate sending things back, but there is something definitely wrong with the EI nvr. Hopefully it can be fixed/figured out.
 
  • Like
  • Wow
Reactions: JDreaming and bigredfish
The common theme I’m seeing (with new EI models) is bandwidth/throughput issues. I think mebbe adding AI to the NVR in a big way severely limits things…?
 
Last edited:
  • Like
Reactions: looney2ns and JDreaming
^Yep and is probably a limitation not documented and hopefully a future firmware update can fix it.

There are so many places that code could be incorporated into it that they haven't realized it is limiting it.
 
  • Like
Reactions: JDreaming
The only problem now is what if the lottery number you got for buying the NVR is giving to someone else after you returning it. And then that number won the Super Prize SD8C845FG-HNF 45X PTZ?:p
 
  • Haha
Reactions: dudemaar and bigredfish
Had same issue on same NVR a month ago. Thought I resolved it by setting the sub stream to h265 on each camera via web GUI .
 

Attachments

  • 4CFFC405-DE4B-48B8-8DC2-663E8FA9C186.jpeg
    4CFFC405-DE4B-48B8-8DC2-663E8FA9C186.jpeg
    4.1 MB · Views: 16
  • Wow
Reactions: JDreaming
dudemaar said:
Had same issue on same NVR a month ago. Thought I resolved it by setting the sub stream to h265 on each camera via web GUI .
Click to expand...

That's kind of strange solution to fix the problem since we are always told not to use H265 most of the time. But maybe Timokreon can try his luck with sub stream to h265 on each camera via web GUI like you did and see what happen. Nothing to lose at this point.:thumb:
 
  • Like
Reactions: dudemaar
JDreaming said:
That's kind of strange solution to fix the problem since we are always told not to use H265 most of the time. But maybe Timokreon can try his luck with sub stream to h265 on each camera via web GUI like you did and see what happen. Nothing to lose at this point.:thumb:
Click to expand...
I always thought H264 for main stream(recorded stream) because its a better picture. I don't think H265 on sub stream with lower bitrate will make a difference on recording quality?
 
  • Like
Reactions: JDreaming
dudemaar said:
I always thought H264 for main stream(recorded stream) because its a better picture. I don't think H265 on sub stream with lower bitrate will make a difference on recording quality?
Click to expand...

Using two different codec can be problematic with the recording. Maybe not for an NVR, but with BI playback will stutter and stall as it switches from playback of H265sub to H264 main.

I would confirm having the video file be two different codec isn't an issue during playback.
 
  • Like
Reactions: JDreaming and bigredfish
dudemaar said:
Had same issue on same NVR a month ago. Thought I resolved it by setting the sub stream to h265 on each camera via web GUI .
Click to expand...

So are you saying it DID reslove or its back to misbehaving?
 
  • Like
Reactions: JDreaming
You must log in or register to reply here.
Top Bottom