Chapter 4: Power Over Ethernet Concepts; Navigation; Overview - Avaya 8300 Configuration

Chapter 4: Power over Ethernet concepts

Use the concepts described in this chapter to gain a basic understanding of Power over Ethernet (PoE).

Navigation

•

Overview

• PoE power supply management
• PoE module power allocation
• PoE port power allocation
Overview
PoE is a technology for wired Ethernet LANs that delivers the electrical current to power a
device over the Ethernet cable rather than the power cord. This minimizes the number of wires
that you must install to power the network. The result is lower cost, less downtime, easier
maintenance, and greater installation flexibility than with traditional wiring.
The Ethernet Routing Switch 8300 supports the IEEE 802.3af specification to supply data
terminal equipment (DTE) Power over Ethernet ports on the 8348TX-PWR or 8348GTX-PWR
modules. You can directly plug the data cable from PoE-enabled access points (APs) in to the
Ethernet Routing Switch 8300. The Ethernet Routing Switch 8300 can provide 200 watts (in
default setting) of PoE power on the 8348TX or 8348GTX modules and support up to 48 PoE
ports on the 8348TX-PWR or 8348GTX-PWR modules.
For more information about the concepts described in this chapter and a configuration
example, See
2: PoE configuration example
The Ethernet Routing Switch 8306 and 8310 Chassis includes a Power over Ethernet (PoE)
backplane that supports IEEE 802.3af specification for Power over Ethernet. The Power-over-
Ethernet (PoE) feature requires the following components:
• Ethernet Routing Switch 8306 or 8310 chassis with PoE backplane
• Ethernet Routing Switch 8301 or 8302 AC power supply
• Ethernet Routing Switch 8393 SF/CPU and 8394 SF/CPU module
Configuration — Power over Ethernet
on page 21
on page 25
on page 26
PoE configuration example reference using the ACLI
on page 60.
on page 23
on page 65, and Figure
May 2011 21