Is it a bad idea to shuffle IP cams to different ports on the back of my NVR?

C

cuz

Getting the hang of it
Nov 4, 2018
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New England
Are there any issues with swapping my cameras to different ports to change the viewing order?

At the console I can change the order and it stays, but the DMSS app displays them in linear order.

I thought I read somewhere that it was a bad idea, but what can go wrong?

I’m thinking just power down the NVR, swap cables around and power back up. I might have to go through the camera registration again.

Or should I delete all the cams from the NVR first?

I don’t care about preserving recorded video, once they are swapped I’ll reformat the drive to start clean.

Any advice would be greatly appreciated.


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It is a bad idea to swap ports for cameras on an nvr that has dedicated poe ports. The IP address of the camera is set by the port it is plugged into on some nvrs. The poe ports are on a different subnet then other network devices.

Test do not guess.
 
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cuz said:
Are there any issues with swapping my cameras to different ports to change the viewing order?
Click to expand...

What NVR is this? Most allow you to set - and save - viewing positions?
Or am I not understanding the issue?
 
It’s a Dahua 16 port POE NVR. I can set and save a different order on the console, but not on the DMSS app.

The only way I can think of to get the correct order on the app is to switch them around on the back of the NVR.


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SouthernYankee said:
It is a bad idea to swap ports for cameras on an nvr that has dedicated poe ports. The IP address of the camera is set by the port it is plugged into on some nvrs. The poe ports are on a different subnet then other network devices.

Test do not guess.
Click to expand...

SouthernYankee,
I am only talking about swapping them around on the back of the NVR. They are all POE ports. I want to swap the cam plugged into port3 with the cam plugged into port9, etc.


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cuz said:
Are there any issues with swapping my cameras to different ports to change the viewing order?
Click to expand...
As others have already indicated - it depends on the brand of the NVR.
Hikvision NVRs generally won't tolerate such swapping, there is a need to match up the PoE channel IP addresses with the camera IP addresses.
But that's easily enough done.
Example :

i know the camera password, but don't know how to enter it

hello, i have 8 hikvision camera (chinese versions). yesterday i disconnected all my cameras from the nvr and moved it to a different spot and when i plugged it in, 5 of them worked and the other 3 had an errror saying passsword error. When i go to nvr's camera setup screen, i can't enter...
ipcamtalk.com ipcamtalk.com

But the Dahua NVRs are a bit more forgiving.
 
According to the Dahua docs, this is the only way to reorder the cameras. It’s a bit odd at first, but it makes it function a bit like the analog models which tied the input port to the camera number.
 
You can save custom favorites in the app with the order you prefer. Might work fine to just swap but me, I don't mess with cable swaps in the nvr. I make sure of the order during initial set up.
 
Thanks, I would have paid more attention to the order during install, but, well you know how it goes sometimes.
DMSS lets you save a list of cameras in the favorites, but they are always in sequential order and I can’t seem to change that. I expect it would be trivial to include that capability.


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bigredfish said:
I tested it yet again today, works fine
Click to expand...

Yup, it worked fine.
I simply shut down the NVR, swapped the cables to the ports in my preferred order and restarted.

I also reformatted the hard drive to prevent any weirdness if I tried to review older footage.

I still wished the DMSS app let you arrange the cams in the order you want.


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