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435 posts

Ultimate Geek

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# 258595 11-Oct-2019 18:09
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Hi


I purchased an AHD dvr unit


it just comes with the unit x1 power supply and x1 mouse.


I purchased a separate AHD camera, from Jaycar.


It didn't work so I took it back and got a replacement.


I think I might be connecting it wrong.


the camera has two cables attached, one with a BNC connector and other smaller one.


I also brought some longer extension cable with both ends have two connections each, a BNC connection and I think a power one.


I can fit the two cable ends on the camera into one of the ends of the extension cable.


The other end of the extension cable - the bnc end I can plug into the AHD unit but I have nothing attached to the other power cable.


I went back to Jaycar who sold me a splitter that will fit four cameras, but that still doesn't work.


I still have a smaller power end left over, there is no other place to plug it in to the AHD dvr unit.


The AHD DVR unit powers up with the four windows of the cameras, but there is no picture in them.


Can anyone help.


Thanks


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679 posts

Ultimate Geek

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  # 2335738 11-Oct-2019 18:15
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You need a separate power supply for the camera/s. (Usually 12 Volts - camera should have a label to specify)

 

Most DVR's do not power the cameras. 


29 posts

Geek


  # 2335745 11-Oct-2019 18:56
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You need a separate power supply for the camera

 
 
 
 




435 posts

Ultimate Geek

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  # 2335764 11-Oct-2019 19:50
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OK thanks for your replies

 

 




435 posts

Ultimate Geek

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  # 2335776 11-Oct-2019 20:31
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PBTech have single swann cameras that come with a power adapter.

 

I wonder if it will work with the AHD dvi unit

 

 


679 posts

Ultimate Geek

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  # 2335787 11-Oct-2019 21:39
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Jaycar should have suitable camera power supplies.


101 posts

Master Geek


  # 2335807 11-Oct-2019 22:33
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Swann CCTV is not compatible with the Jaycar branded CCTV gear, have tried it with no success


22630 posts

Uber Geek

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  # 2335950 12-Oct-2019 13:25
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There are at least 3 standards of analog HD video, and they all have different resolution options that may or may not be supported, with names like 1080N and all sorts of letter suffixes on AHD that are all incompatible.

 

Ive only deployed 3 analog HD systems for friends, and got everythign from the same supplier on aliexpress so that it was all good to go. Even then they messaged that we had bought 2 cameras that were too good for the recorder that we got despite both being 1080 - thats where the N came in, thats some lower res version of it.

 

Also the cameras have both misnamed pal and ntsc modes - which are basically 25 or 30 fps for the base rates, but the higher res ones are at half that. DVRs need all cameras the same so choose that correctly when buying. I suspect that all the local ones will probably get the pal versions to reduce problems with motion detection falsing under crap mains powered lighting.





Richard rich.ms

 
 
 
 




435 posts

Ultimate Geek

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  # 2335968 12-Oct-2019 14:23
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thanks for that info

 

I went back to Jaycar and repurchased the AHD mini. Its a 1080p camera.

 

the camera technology supports - AHD/TVI/CVI/CVBS

 

I used a 12volt power adapter from an external harddrive unit I had and it works.

 

Setup the network with a static IP and didn't need to change anything else.

 

And it all works great.

 

The camera images are colour but for some reason anything grey shows as purple but other wise the quality is fine.

 

Got the app setup as well and can view the images remotely over my mobile data.

 

Its fine for a basic security system.

 

Ford

 

 

 

 


22630 posts

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  # 2335971 12-Oct-2019 14:28
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The purple as grey thing will be because its a cheap camera with no switchable IR filter in it. Didnt think that was really a thing now but I do know that some people dont like the click of the IR filter moving, so perhaps they will sell it as a feature?





Richard rich.ms



435 posts

Ultimate Geek

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  # 2335972 12-Oct-2019 14:32
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OK thanks

 

the camera from jaycar only cost $57 and its a mini

 

I don't mind about the colour.

 

At least I can view and record images that's all it needs to do.

 

 


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