Question about I-series NVR camera bandwidth capacity

[fullboogie]

I have a 7608 I-series 8 channel NVR. Connected are (6) 2347 G1's that are 4MP, (1) 2347 G2 that is 4MP, and (1) 2CD2455FWD cube camera that is 5MP. I want to remove one of the G1's and replace it with a 2387G2 8MP. It got me thinking about whether my NVR can handle the extra incoming bandwidth.

@Dan would you please help clear this up? I don't want to order this new camera, and possible a couple more, if my NVR can't handle the new camera. It would also be helpful to see some kind of tutorial on how to calculate total camera bandwidth vs. the NVR's capacity, as I've been unable to find something like that.

And don't ask me what firmware version my equipment is on!

 

[JB1970]

It’s always going to depend on what frame rate you use, as that affects the recommended bit rate range. If you worked on H265 at 15FPS, the recommended bit rate rates would be 2048, 2304 and 4096 for 4, 5 and 8 megapixels respectively. That’s under 19 Mbps incoming bandwidth for the main streams. The cameras using VBR will burst above what you set sporadically and I always add a bit to the recommended bit rates. Even so you won’t max out the incoming bandwidth.

 

[fullboogie]

All of my cameras have the following:

Bitrate type: variable
Video quality: highest
Frame rate: 25
Max bitrate: 8192
Max average bitrate: 4096
All are on H265+

So given all this, how would I calculate what my incoming bandwidth is, and how much margin I have? I understand that the I-series has a max incoming of 80.

By the way, given the time difference, I really appreciate your response this late at night JB

 

[JB1970]

All of my cameras have the following:

Bitrate type: variable
Video quality: highest
Frame rate: 25
Max bitrate: 8192
Max average bitrate: 4096
All are on H265+

So given all this, how would I calculate what my incoming bandwidth is, and how much margin I have? I understand that the I-series has a max incoming of 80.

By the way, given the time difference, I really appreciate your response this late at night JB

I'm not sure for H265+. The max bitrate is 8192 so the NVR could potentially see that figure on every channel at times.

I'm curious as to your choice of H265+ - it's caused issues for me on a number of occasions and I never use it anymore. I would see some frame retention, ghost images from moving objects at times so I generally use H265. On my own system I've gone back to H264 at the expense of storage time and I can see a definite improvement in quality during playback for nighttime footage.

 

[diannnaa]

Hi,
To check if your NVR can handle the new camera’s bandwidth look at its maximum supported incoming bandwidth which you can usually find in the NVR’s spec sheet (for the 7608 I-series, it’s typically around 80 Mbps). Add up the bitrates of each connected camera (you can set or check each camera's bitrate in the NVR settings). As long as the total bitrate of all connected cameras stays under the NVR’s max, you should be good to add the new 8MP camera.

Thanks