Powering 7 1AMP Dome cameras

[kilo_4que]

Hi guys, I have 7 1 AMP cameras and was wanting to know what the cheapest method of powering them would be.

Now I have seen these power supplies from places like Screwfix, would you recommend them, individual adaptors or something else?

I am running cat5e cable to the cameras and have the ends connected to video baluns. I have 6 cores left so was wondering if i use 2 cores for positive and 2 for negative but the problem would be power source at the other end.

I was looking at this here, would this be sufficient
http://www.screwfix.com/prods/73335...2V-DC-1Amp;jsessionid=51JAXD3SUTYLICSTHZOCFFQ

or is it 1AMP times 7 i.e. the overal resulting in 7AMPS?

Any help guys, thanks

 

[youtekkinthepish]

You'll need 7 of them.

That said, powering all 7 cams off one PSU, assuming they do actually take 7A would require one v expensive PSU anyway. Personally, i'd go for 3 x 3A and split it, that way youdon't lose the lot if one PSU dies.

Regarding supply to each camera, yes, double up cores in cat5 and use them for the feed.

Whatch your earths though. Any ground loops and you'll get probs.

 

[kilo_4que]

Hey sorry not had a chance to get back online. Thanks a lot for the reoky. Just a few questons. Are your referring to 3A psu or an adaptor. If adaptor, there is one problem, if the 3 amp adaptor, thats 3 cameras unoperational which maybe temporary but still. Furthermore, these adaptors dont have fuses so you have to invest in another adaptor.

Regarding the 3A psu's. Wouldnt it be more expensive to buy 3x3A PSus compared to a single 10A PSu?

Thanks

 

[youtekkinthepish]

3 x 3A psu's - proper ones.

One dies - fuse probably, you don't lose the lot.
a single psu covering all then you will lose the lot if it dies.

What about volts drop? Is distance an issue?

 

[Lectrician]

What make/model cameras are you using?

1amp is a tad high.

 

[kilo_4que]

They arent actually branded Lectritian,

Furthermore someone else actually mentioned that they wont actually be true 1A more like 2 thirds or half that. But bare in mind they are IR so maybe why they are rated at 1A

 

[mattylad]

Are you able to power 1 and measure the current it actually takes?

 

[kilo_4que]

Hmm not really because i dont have a power adaptor or anything as such

 

[seasickstevie]

... I dont have a power adaptor or anything

Didn't you get power supply units with the cameras?

If you did, why not just stick with seven separate PSUs? Then if one fails, you've only lost one camera.

Or is this a 'green' choice of reducing your carbon footprint?

 

[breezer]

Didn't you get power supply units with the cameras?

If he did, why would he be asking how to power them?

 

[Atilla]

... I dont have a power adaptor or anything

Didn't you get power supply units with the cameras?

If you did, why not just stick with seven separate PSUs? Then if one fails, you've only lost one camera.

Or is this a 'green' choice of reducing your carbon footprint?

And 7 available sockets??

 

[seasickstevie]

http://www.tlc-direct.co.uk/Images/Products/size_3/AARS4W.JPG

( x 2 )

 

[Atilla]

http://www.tlc-direct.co.uk/Images/Products/size_3/AARS4W.JPG

( x 2 )

Thinking through the installation may be more fruitful.

 

[DiverseContracting]

Even with IR the current should be around 750mA,

Personally i would recommend a power supply such as a dantech, as they have individually fused outputs for this type of application IE 8 x 1 amp.

All connections will need to be Via a spur NOT socket and with the dantech it will only require one mains input to supply.

Further more i would not recommend using the Cat5 for power as it may interfere with the picture quality.

Karl.


***Removed***

 

[seasickstevie]

I can appreciate a 'spur' (FCU) may be a more professional way of doing it, but what would be wrong with a 13a plug?