Jump to content

Recommended Posts

Has anyone connected an analog camera over coax to a Dahua NVR yet? If so, what did you use to make it work? Thanks.

Share this post


Link to post
Share on other sites

Has anyone connected an analog camera over coax to a Dahua NVR yet? If so, what did you use to make it work? Thanks.

 

 

use a video server (analog signal to IP )

Philip

Share this post


Link to post
Share on other sites
Has anyone connected an analog camera over coax to a Dahua NVR yet? If so, what did you use to make it work? Thanks.

 

 

Im confused by this post. Your title says Ethernet over coax, but then your post says analog over coax to an nvr. So Ill reply the answer I think you're lookiing for.

 

If your talking about connecting an ehternet POE type camera to a piece of coax. You cannot just run ethernet over coax with some dongles. It requires powered hardware to convert the ethernet frames to coax and back when it reaches its destination. Distance is limited. Gefen makes products that will do just that. They are not cheap.

 

If your talking connecting a full analog coax camera to an NVR which typlically doesnt have any analog inputs. There are NVR out there that have the abiltiy to do both. Im not sure dahua makes one. You might want to look at their website.

Share this post


Link to post
Share on other sites

If you want to connect analog & IP cameras DAHUA to a unique recording device, you can:

-use a Hybrid DVR+NVR (not this case, since the main recording equipment has already been bought)

-use a NVR for recordings and (!)any DAHUA DVR as NVS/Video Encoder; DAHUA's NVRs have the ability to record their DVRs too (without the need of a HDD in the DVR) and, also, have the option to select which channel you want to record/display (thus the D1 resolution advertised in NVRs - the NVR can help making a bridge/upgrading existing system)

Share this post


Link to post
Share on other sites
If you want to connect analog & IP cameras DAHUA to a unique recording device, you can:

-use a Hybrid DVR+NVR (not this case, since the main recording equipment has already been bought)

-use a NVR for recordings and (!)any DAHUA DVR as NVS/Video Encoder; DAHUA's NVRs have the ability to record their DVRs too (without the need of a HDD in the DVR) and, also, have the option to select which channel you want to record/display (thus the D1 resolution advertised in NVRs - the NVR can help making a bridge/upgrading existing system)

 

 

Thanks for filling in the holes.

Share this post


Link to post
Share on other sites

As a side note, coax can be HD-SDI too (or proprietary HDCVI) for digital compressed MegaPixel over coax, but I doubt this is the case

Share this post


Link to post
Share on other sites
As a side note, coax can be HD-SDI too (or proprietary HDCVI) for digital compressed MegaPixel over coax, but I doubt this is the case

 

Thats not how I read his question so I didnt even consider that...but that is also true!

Share this post


Link to post
Share on other sites

My scenerio is, customer has 3 existing analog cameras, impossible to rerun the wires. He wants 13 more Cameras and wants IP. How does that dvr bridge work? I dont mind throwing in a 4 channel dahua. We want to keep the cost down rather than installing an HD sdi system and upgrading 3 perfectly good cameras. They do their job and the customer is happy with them.

So, I connect the dvr to the same network as the NVR but how do I give each channel on the dvr a channel on the NVR?

Share this post


Link to post
Share on other sites

You have this option in the NVR's Remote Device Menu (since I don't have a NVR online now, you can test this through your own NVR and see that it has options to setup ip/port/user/pass and channel to record).

Share this post


Link to post
Share on other sites

Along the way I have come across this vid. Jump to about the 6:55 mark and it covers what you want to do. I'm not sure if it will bring in any dvr brand, or if it has to be a dahua dvr. Good luck.

 

LWWXbeb0VF8

Share this post


Link to post
Share on other sites

Is it possible to add a ddns or IP address from another network from another location into one of the channels?

Share this post


Link to post
Share on other sites

In that vid it seems to indicate that to do it, everything must be able to be found within the same network. But the vid is all I'm guessing from. Wouldn't know for sure.

Share this post


Link to post
Share on other sites

I got an NVR to view an IP camera in my house the other day, but than I deleted it and now can't get it to work again.

Like you said, internal network definitely works, but why wouldn't the nvr be able to view an outside network IP?

Share this post


Link to post
Share on other sites
-use a NVR for recordings and (!)any DAHUA DVR as NVS/Video Encoder; DAHUA's NVRs have the ability to record their DVRs too (without the need of a HDD in the DVR) and, also, have the option to select which channel you want to record/display (thus the D1 resolution advertised in NVRs - the NVR can help making a bridge/upgrading existing system)

 

That is something I didn't knew, thanks for sharing all your Dahua knowledge dexterash! " title="Applause" />

 

So, let's say, with a Dahua NVR3216, is it possible to record 4ch at 1920x1080@25fps; but it would also be possible to record just 3ch at 1920x1080@25fps, and also at the same time 4ch D1@25fps from a Dahua 4ch DVR?

Share this post


Link to post
Share on other sites

You'll get the best image of a DVR via VGA, on a CRT monitor (old style), since it doesn't do any post-processing.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×