Replacing/upgrading BNC cameras on Ganz DR4N

I believe you need to access the camera menu to switch to the desired format. I know how to do it on a Dahua DVR but no idea on that relic. Have you tried dialing the camera resolution setting down on the DVR?
 
I have not.

I did try a couple different 650 line cameras and they came right up.

So, the camera setup has to be done in the dvr? I naively assumed there would be some sort of switch. Thinking that the old dvr would not have the ability.
 
Im saying Im not sure on your DVR... I would think the DVR has a setting for resolution like the Dahua DVR's? (See below) that would need to be changed regardless?

DVR
DVR-Resolution-Settings.jpg

The camera interface itself allows changing resolution between 1080p and 720p and NTSC vs PAL, as well as from HDCVI to CVBS, TVI, of AHD. You have to access the OSD camera menu to change this
And the camera OSD menus

cammenu1.jpg
cammenu2.jpg
CVI2231-Camera-Setting-changeto-CVBS.jpg
 
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How do you access the OSD menus on your current older cams? You would access the OSD menu for the new cam the same way...
 
In the time i spent with it, i could access focus and ptz sub screen, but did not seem to be what i was looking for regarding resolution. I think it has other problems too. Couldn't get to any playback screens.

I do have another dvr that i am not using. It is newer. AIM and says h.264 on the front . That is what i was thinking of using to setup the cameras
 
On the AIM that I just connected, there are communication options on PTZ screen, but no resolution.

I get a bunch of wavy type horizontal lines.

Can't find where I can select anything that you mention.

The AIM is definitively a newer OS.
 
There has to be a way on most any DVR to access the actual camera settings via OSD, without this you're relying on whatever factory default settings are on the camera. On the Dahua DVR, you open the live view of the camera you want to adjust, and use the PTZ button to pull up the OSD as shown in my pics.

Smartest thing to do would be invest a couple of hundred $ in a new Dahua DVR, which would allow you to run any combination of types of cameras, CVI, CVBS/AHD, and even IP

Recommend this one as a good place to start, about $250
https://www.dahuasecurity.com/products/productDetail/20567
 
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Steve Bowman said:
I am rather dissapointed that these new cameras are useless to me at this point.

Wasted $$
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Awwww..passive aggressive bitching will get you no where. A quick google search for dahau's hdcvi manual would have yielded this.
Video output port (yellow): analog video output port.  Video output port (black): HDCVI HD video output port.  Some models only have one black video output port, HD/SD output can be switched via PFM820 (UTC Controller) or it can be switched via OSD Menu → Advanced → Video Output as well.

The controller is under 20 bux, but for someone who doesnt want to spend 200 bux on a dvr that will exponentially increase resolution, that might be too much. Should have stuck with crappy D1 cameras:rolleyes:
 
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You could call AIM and ask them how to access the OSD menu on your cameras... they're in Mumbai
:: AIM Secure ::

But your smart move would be to buy a newer DVR like the one I mentioned. With the setup you have, you're going to be trying to run Ferrari cameras on a Pinto DVR that isnt even capable of 1080p
 
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True, but the user just wanted to replace some cameras, not the the dvr too. System was working fine for his needs.

Like i said, i just assumed there was a switch, or parallel signal outputs. Never was aware of anything you guys have mentioned.
 
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fenderman said:
Awwww..passive aggressive bitching will get you no where. A quick google search for dahau's hdcvi manual would have yielded this.
Video output port (yellow): analog video output port.  Video output port (black): HDCVI HD video output port.  Some models only have one black video output port, HD/SD output can be switched via PFM820 (UTC Controller) or it can be switched via OSD Menu → Advanced → Video Output as well.

The controller is under 20 bux, but for someone who doesnt want to spend 200 bux on a dvr that will exponentially increase resolution, that might be too much. Should have stuck with crappy D1 cameras:rolleyes:
Click to expand...

Kind of thinking that's why I started this thread. I don't know hdcvi from shinola
 
fenderman said:
Awwww..passive aggressive bitching will get you no where. A quick google search for dahau's hdcvi manual would have yielded this.
Click to expand...


I would tend to agree, newer hardware devices will frequently not be compatible with older controlling hardware. Especially when computerized equipment is involved. Newer generations of technology just doesn't like working correctly with other generations. Even when it says backwards compatible. Complaining does no good. Just the way it is across many different technologies. Kinda like arguing over your brand new Corvette ZR-1 motor you bought to upgrade your '78 Stingray thinking drop it in and poof more HP. There's fuel system, emissions and computer differences that have to be addressed. Life just doesn't work that way.

I would try to plan an upgrade. Start phasing out the older equipment as it dies etc. It's not usually a big deal to have multiple DVRs/NVRs etc. We have more technology options to make most of it work out.
 
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MrMotofy said:
I would tend to agree, newer hardware devices will frequently not be compatible with older controlling hardware. Especially when computerized equipment is involved. Newer generations of technology just doesn't like working correctly with other generations. Even when it says backwards compatible. Complaining does no good. Just the way it is across many different technologies. Kinda like arguing over your brand new Corvette ZR-1 motor you bought to upgrade your '78 Stingray thinking drop it in and poof more HP. There's fuel system, emissions and computer differences that have to be addressed. Life just doesn't work that way.

I would try to plan an upgrade. Start phasing out the older equipment as it dies etc. It's not usually a big deal to have multiple DVRs/NVRs etc. We have more technology options to make most of it work out.
Click to expand...
It works perfectly!
 
@Steve Bowman there is very likely a way to access the cameras OSD menu, you just havent found it. When/if you do, you should be able to switch the Dahua CVI cams to the correct mode and downgrade their resolution to the poor 704x480 resolution of the other cameras.
 
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