Standards for power over data lines

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dovaka

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power over data options

ive been researching for some kid of a standard that will allow me to run power over data lines but i havent been able to find the right fit yet so i figured i would ask you guys
it needs to be between 24-48v dc run on only 2 wires be able to transmit over a relatively far distance up to several thousand feet but it doesnt need to be all that fast rs485 speeds is more then enough
 

Re: power over data options

I am afraid it can't be done with only two conductors (UTP=unshielded twisted pair) ..
You need at least one more conductor, maybe cables's shield, if it is available ..

Some related issues are here:
"Understanding Common-Mode Signals"
**broken link removed**

Regards,
IanP
 

Re: power over data options

yes it can i know of 2 companies that have a product that does exactly that but they wont tell me anything about it and i cant seem to find anything else that does it
here is a link to the spec page of one of them
https://www.fireone.com/system_spec.htm
 

Re: power over data options


what is a way that it could be done with 3 wires
 

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