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1. Introduction
Power over Ethernet (PoE) allows both power and data to be simultaneously carried over
standard Ethernet cables. PoE-enabled Ethernet switches can supply power directly to Ethernet
devices, thereby simplifying installation and removing the need for separate power supplies for
those devices. The IEEE 802.3af standard defines the mechanisms for Power Sourcing
Equipment (PSE), such as PoE-enabled Ethernet switches, to detect, classify, and supply power
to Powered Devices (PDs), such as PoE-enabled IP telephones. The Nortel 5520-24T-PWR
switch provides 24 ports with PoE.
The Avaya product configurations addressed by these Application Notes are shown in Figure 1.
The following Avaya powered devices were covered:
• Avaya one-X DeskPhone Edition IP Telephones : 9610, 9620, 9630 (with and without
SBM24), 9640, 9650
• 46xx Series IP Telephones: 4601, 4602, 4610, 4621, 4622, 4625
• Avaya one-X Deskphone Value Edition IP Telephones: 1603 with PoE Splitter, 1608,
1616 (with and without BM32 Button Module)
• Avaya one-X Quick Edition: 4610, 4621, and G10 PSTN Gateway
JPA; Reviewed:
SPOC 8/6/2007
Solution & Interoperability Test Lab Application Notes
©2007 Avaya Inc. All Rights Reserved.
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Nortel5520PoE.doc
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