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cabby

Power Over Ethernet Qs

4 posts in this topic

I want to add a couple of Y-cams to our system using PoE.    Current thinking is to use a Ethernet Over Power plug to feed signal to a PoE injector.  This would ideally have 2 or more outputs to allow 2 cameras to be connected.   

Questions are:

1 - Single PoE injectors are circa £20.  I've not had much luck finding a double one so do I need a switch thingy ?  Sure there is a better name than that :).  These seem to jump up in price quite a bit.    Happily consider a second hand jobby once I know what I need. 

2 - Will a Ethernet over Power connection allow 2 x feeds to be provided?  This may be the job of the switch thing.  The unit i'm using are the older BT comtrend ones.  

Cheers 'smokers!

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I'm tired so may not be parsing your question properly. My guess is the cameras are 802.3af for PoE, so no more than 15 watts?

You won't find a double PoE injector. What you need is a switch that supports PoE, and connect the cameras to that. You'll get a four port PoE switch for about 50 quid. Each port will provide up to 15 watts for 802.3af which should be plenty for most cameras if they state they're 'PoE' compatible.

Something like this - 4 ports of 10/100Mbps, with PoE. Will be a bit more if you want Gbps connectivity, but why would you want that for a couple of cameras.

Be careful how you wire your home network with extra switches :) Probably will be fine, but personally I prefer the 'proper' way to do things, otherwise you'll run in to weird and wonderful issues.

 

 

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Cheers Mac.  You've covered it all for me.  The cameras draw 3.75w so that switch would be fine. 

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All up and running now and we have an additional y-cam on the system (managed to cover with 1 rather than 2 new ones).  Great pieces of kit these y-cams.

Will hopefully help serve as a good deterrent in light of a spate of recent (daytime) burglaries in the area! 

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