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PoE

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Revision as of 13:39, 20 December 2006 by Davide.poletto (talk | contribs) (IEEE 802.3ad Standard: (Added OpenStage to PoE compliant phone families list))
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PoE = Power over Ethernet

Erläuterung

Auch: PoL (Power over LAN). Mit der Technologie können netzwerkfähige Geräte, z. B. ein Telefon der optiPoint 410/420 Familie oder optiPoint 410/420 S Familie, mittels 8-adrigem LAN-Kabel mit Strom versorgt werden.

PoE-Klassen

Geräte, die PoE unterstützen, werden wie folgt in Klasssen zur Leistungsaufnahme unterteilt:

Klasse Maximale Leistungsaufnahme am Gerät
0 0,44 bis 12,95 Watt
1 0,44 bis 3,84 Watt
2 3,84 bis 6,49 Watt
3 6,49 bis 12,95 Watt

IEEE 802.3ad Standard

The IEEE 802.3af standard specifies how to supply power to compliant devices over Ethernet LAN cabling (10/100Base-T). Armed with uninterruptible power supplies (UPS), Voice over IP (VoIP) phones, like:

are so deployable without worrying about them not functioning during a power outage.

IEEE 802.3af Power Classes

The IEEE 802.3af standard allows for the classification of PDs (Powered Devices) based upon their power requirements to permit load management.

Below the power classes defined by IEEE 802.3af:

Class Measured current (mA) Maximum PD power (W)
0 0 to 5 12.95
1 8 to 13 3.84
2 16 to 21 6.49
3 25 to 34 12.95
4 35 to 45 Reserved

See also / Siehe auch