User's Manual

12
3.1.3 Power over Ethernet (PoE) considerations
For a PoE switch model, consider the following information:
As a Power Sourcing Equipment (PSE) device, the switch can
support up to 30 Watts per PoE port on ports 1 to 4 and 30 Watts
per port on other port to a Powered Device (PD).
Model
Power Dedicated
to PoE
PoE ports
PoE Standard
Supported
EBP15 60W 1 to 4 IEEE802.3at/af
When connecting switches capable of supplying PoE, consider the
following information:
• Switch models with PoE function are PSEs. These models
are capable of supplying DC power to attached PDs, such as
VoIP phones, IP cameras, and wireless access points (APs).
Additionally, PoE switches are capable of detecting and
supplying power to pre-standard legacy PoE Power Devices.
Due to the support of legacy PoE, there is a possibility that PoE
switches acting as PSE may inadvertently detect and supply
power to an attached PSE, including other PoE switches. This
false detection can result in a PoE switch operating improperly
and failing to supply power to attached PDs.
• To prevent false detections, you can either disable PoE on the
ports that connect to PSEs, or power up a PSE device before
connecting it to a PoE switch.
• If a device is mistakenly detected as a PD, disconnect the
device from the PoE port and power recycle it using an AC
power source before reconnecting it to the PoE port.