Avaya C360 Manager, Installation And Configuration Manual

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Avaya C360 Power over Ethernet Features
198 Installation and Configuration Guide Avaya C360 Multilayer Stackable Switches, version 4.5
Power Over Ethernet
The C360-PWR switches provides IEEE 802.3af-compliant "Inline" DC power over the signal
pairs in addition to switched Ethernet on the existing LAN infrastructure for devices such as IP
telephones and Wireless LAN access points. This allows you to deploy devices in the network
that require power without installing standard power cables in hard to access areas. The
C360-PWR switches are pre-configured to supply power according to the load detection criteria
(see
Load Detection ), so you can use it right out of the box. The C360-PWR switches provide
power over standard Category 3 and Category 5 cables.
Load Detection
The C360-PWR switches periodically check all ports, powered and non-powered to check their
status and the power status of connected devices.
The C360-PWR switches will supply power to a port only after it has detected a suitable PD
(powered device) is connected to the port. The check consists of the C360-PWR switches
looking for a signature from the device that indicates it needs to supply power.
How the C360-PWR Switches Detect a Powered Device
The C360-PWR switches use the specific resistance powered device signature and PD
(powered device) connection verification to determine whether to supply power to a give port.
Figure 30 shows the process.