NETGEAR AV Series User Manual page 48

4. Select Configure > Power over Ethernet.
The Power over Ethernet (PoE) page displays.
5. In the upper right of the page, above the graphical display of the switch, click the
PoE Interface Settings link.
The PoE Interface Settings window displays. By default, PoE is enabled for interfaces.
6. Select the port or ports to which the settings must apply by clicking individual ports
or, to select all ports, select the Select All PoE Ports check box.
7. Either leave the default PoE mode (802.3at for PoE+ models; 802.3bt for PoE++
models), or, depending on your network devices and requirements, select one of
the following modes from the PoE Standard menu:
• 802.3af: The port is powered in and limited to the IEEE 802.3af mode. A PD that
requires IEEE 802.3at does not receive power if the port functions in IEEE 802.3af
mode.
• Legacy: The port is powered using high-inrush current, which is used by legacy
PDs that require more than 15W to power up.
• Pre-802.3at: The port is initially powered in the IEEE 802.3af mode and, before
75 msec pass, is switched to the high power IEEE 802.3at mode. Select this mode
if the PD does not perform Layer 2 classification or if the switch performs 2-event
Layer 1 classification.
• 802.3at: The port is powered in the IEEE 802.3at mode and is backward
compatible with IEEE 802.3af. The 802.3at mode is the default mode. In this
mode, if the switch detects that the attached PD requests more power than IEEE
802.3af but is not an IEEE 802.3at Class 4 device, the PD does not receive power
from the switch.
For PoE+ models, 802.3at is the default setting.
• Pre-802.3bt: The PoE++ port supports Class 4 devices that use 4-pair PoE (4PPoE)
to receive power higher than 30W but that are not compliant with IEEE 802.3bt.
The port also supports the IEEE 802.3at and IEEE 802.3af modes.
• 802.3bt-Type3: The PoE++ port supports the IEEE 802.3bt Type 3 mode, the
IEEE 802.3at mode, and the IEEE 802.3af mode.
• 802.3bt: The PoE++ port is powered in the IEEE 802.3bt mode and is backward
compatible with IEEE 802.3at and IEEE 802.3af. In this mode, if the switch detects
that the attached PD requests more power than IEEE 802.3at but is not an IEEE
802.3bt device, the PD does not receive power from the switch.
For PoE++ models, 802.3bt is the default setting.
Power over Ethernet
AV Line of Fully Managed Switches M4250 Series
48 Audio Video User Manual