NVR firmware update limits PoE ports speed to 10Mbps?

voidtemp7

voidtemp7

n3wb
Sep 15, 2020
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Hello!

I have a Dahua NVR4116-8P-4KS2.
Just have checked for firmware updates and for new version it says among others:
"3.PoE port is limited to 10Mbps mode, which increases the transmission distance."

Did anyone update lately?
Can you check please Is there an option to choose between 100Mbps and 10Mbps for builtin switch?
Because I was planning to connect another (external) switch to it. So I would like to have 100Mbps for builtin ports.

My system version: 4.001.0000003.1 Build Date: 2020-08-13
New system version found.: 4.001.0000005.1.R.201126
 
If "bandwidth" is your concern: there is absolutely no issue to connect those "other" camera's to that (external) switch, and connect those through the LAN port of the NVR.

The idea is indeed that each POE port connects to its own (single) IP camera, but if your NVR is (for example: 192.168.33.103 with internal POE IP range 10.10.1.X), you can setup your (non-POE-NVR) cams on 192.168.33.202, and attach that IP address (202) on channel 6 for example. Off course, that reduces the number of camera's you can still connect to your NVR (as your NVR is limited to 16 channels = 16 cams, being POE or "external" like you call them).

Good luck!
CC
 
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I would be more concerned about the 80Mbps for the incoming bandwidth processing speed for the NVR. That will be the limiting factor on your NVR.
 
catcamstar,
thanks for reply!

My idea was:
Router--->NVR builtin PoE switch----> (50meters 100Mbps)------> PoE switch------> Cam1, cam2, cam3.

And with that update the only option left will be to connect external switch to router. I wanted to keep cameras hidden in NVR's subnetwork.

SouthernYankee,
agree, Lite series is a bit limiting.
 
voidtemp7 said:
catcamstar,
thanks for reply!

My idea was:
Router--->NVR builtin PoE switch----> (50meters 100Mbps)------> PoE switch------> Cam1, cam2, cam3.

And with that update the only option left will be to connect external switch to router. I wanted to keep cameras hidden in NVR's subnetwork.
Click to expand...

If you work with a managed switch, you can put your cams in a separate vlan, whereas you only let your NVR communicate to the outer world. Ample options IMO, but like @SouthernYankee wrote, you might run quickly into internal bottlenecks of this 4XXXX series.
 
It does not matter. Camera use less than 10Mbps. As there is only one device per ports, there is no collisions. I believe only cameras can go on the nvr 8 ports.
 
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