Poe Overview - NETGEAR GS408EPP Hardware Installation Manual

8-Port Easy Mount Gigabit Ethernet PoE+ Smart Managed Plus Switch GS408EPP

PoE overview

The switch supports eight Power over Ethernet Plus (PoE+) ports. The switch can supply
up to 30W PoE+ (IEEE 802.3at) to each port up to its total maximum PoE power budget
of 124W across all active PoE+ ports. The switch is also compatible with PoE (IEEE
802.3af).
Supplied power is prioritized according to the port order, up to the total power budget
of the device. If the power requirements for attached devices exceed the total power
budget of the switch, the PoE power to the device on the highest-numbered active
PoE+ port is disabled to make sure that the devices connected to the higher-priority,
lower-numbered PoE+ ports are supported first. That means that port 1 receives the
highest PoE priority, while port 8 is relegated to the lowest PoE priority.
Although a device is listed as an 802.3at PoE+-or 802.3af PoE–powered device, it might
not require the maximum power limit that is specified by its IEEE standard. Many devices
require less power, allowing all eight PoE+ ports to be active simultaneously when the
devices correctly report their PoE class to the switch.
For more information about PoE, see the installation guide and user manual, both of
which you can download from netgear.com/support/download/.
PoE Applications 15 Hardware Installation Guide