Power Over Ethernet (Poe) Considerations - Edimax GS-3008P User Manual

4-1-3 Power over Ethernet (PoE) Considerations

For PoE switch models, consider the following information:
Devices considered a Power Sourcing Equipment (PSE), can support up to 30 Watts per PoE
port on ports 1 to 4 and 30 Watts per PoE port on other ports to a Powered Device (PD).
Model Power Dedicated to PoE
3008P 60W
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).
PoE switches. Additionally, PoE switches are capable of detecting and supplying power to
pre-standard legacy PoE Power Devices. Due to the support for legacy PoE, there is a
possibility that PoE switches acting as a PSE may inadvertently detect and supply power
an attached PSE, including other PoE switches. This false detection may result in a PoE
switch operating improperly and unable to supply power to attached PDs.
 The prevention of a false detection can be easily remedied by disabling PoE on the ports
that are used to connect PSEs. Another simple practice to prevent a false detection is to
first power up a PSE device before connecting it to a PoE switch.
 When a device is falsely detected as a PD, disconnect the device from the PoE port and
power recycle the device with AC power before reconnecting it to the PoE port.
PoE Ports PoE Standard Supported
1 to 4 IEEE802.3at/af
12