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TOPIC: Power over ethernet

Power over ethernet 11 years 6 months ago #18767

What is the power(voltage) over ethernet(CSMA/CD) when the media is idle & also when it is transmitting?

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Re: Power over ethernet 11 years 6 months ago #18773

  • DaLight
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From the spec, the nominal voltage and power values are 48V and 13W respectively. I don't think transmission states are going to affect the power usage as much as the power drawn by the "Powered Device". Check out this link for more info.

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Re: Power over ethernet 11 years 6 months ago #18788

Do you mean on the actual Ethernet cable Vilasini, or do you mean the power/voltage of the equipment as Dalight has explained?

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Re: Power over ethernet 11 years 6 months ago #18808

I meant the actual ethernet cable when the data is travelling & when the media is idle.

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Re: Power over ethernet 11 years 6 months ago #18815

Thought so. I have that information in an old Ethernet training course. It'll take me a little while to dig it out

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Re: Power over ethernet 11 years 6 months ago #18818

  • DaLight
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I'm sorry, I was unduly influenced by the Topic title when making my reply. I should have read the question more carefully :oops:

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