Can a POE switch power devices if a non-POE hub or switch sits between the source and device?
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No. POE will only be supplied to devices that are directly connected to the POE switch, and only by request.
The standard by which this works is described here: http://en.wikipedia.org/wiki/Power_over_Ethernet#Standard_implementation
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Can a POE switch power devices if a non-POE hub or switch sits between the source and device?
Author by
chrism2671
Updated on September 18, 2022Comments
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chrism2671 over 1 year
I want to buy a single POE source and distribute it with cheap network hubs that do not have POE. Will this work?
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chrism2671 about 13 yearsJust to confirm, it is likely plugging a POE hub into a non-POE hub might destroy it?
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FooBee about 13 yearsI am not sure about that, but anyway, a non-POE switch is not capable of distributing power, so there is no reason in risking damage to your equipment.
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Ernie about 13 yearsNo, plugging a non-POE hub into a POE hub will not destroy it. The POE protocol will only supply power to the devices that request it. -
Ernie about 13 yearsFYI, we do this all the time - we have several switches in our office after the POE switch. No damage is done to them, and no POE gets through them.
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Anthony almost 11 yearsPatch panels are different though?
