PoE
(Power Over Ethernet) Distributing power over a CAT5 Ethernet cable to a target device that is not plugged into an AC wall outlet. It enables remote network devices such as access points, IP phones and surveillance cameras to be installed in locations that are too far from AC outlets. In addition, PoE eliminates a bulky power adapter for each device (see wall wart).PoE works by sending electrical power over unused wires in eight-wire cables and over signal wires in four-wire cables. PoE networks are created with a PoE-based Ethernet switch, but PoE can also be added to a non-PoE switch. In addition, non-PoE devices can be used in a PoE network (see illustrations below). See Ethernet, IP phone and network camera.
IEEE Maximum
Type Standard Wattage
PoE 802.3af-2003 15.4 watts DC
PoE Plus 802.3at-2009 25.5 watts DC
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Poe
Edgar Allan. 1809--49, US short-story writer, poet, and critic. Most of his short stories, such as The Fall of the House of Usher (1839) and the Tales of the Grotesque and Arabesque (1840), are about death, decay, and madness. The Murders in the Rue Morgue (1841) is regarded as the first modern detective story
| POE - PowerOpen Environment |
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