x530 Series Installation Guide for Virtual Chassis Stacking
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Power Over Ethernet
The x530-10GHXm, x530-18GHXm, x530-28GPXm and x530-52GPXm
switches feature PoE on copper ports. With PoE, the switches supply DC
power to network devices over the same copper cables that carry the
network traffic.
PoE can make it easier to install networks. The selection of a location for a
network device can be limited by whether there is a power source nearby.
This often limits equipment placement or requires the added time and cost
of having additional electrical sources installed. With PoE, you can install
PoE-compatible devices wherever they are needed without having to
worry about whether there are power sources nearby.
A device that provides PoE to network devices is referred to as power
sourcing equipment (PSE). It functions as a central power source for other
network devices.
Devices that receive their power from a PSE are called powered devices
(PD). Examples include wireless access points, IP telephones, webcams,
and even other Ethernet switches.
The x530-10GHXm, x530-18GHXm, x530-28GPXm and x530-52GPXm
switches automatically determine whether devices connected to their ports
are powered devices. Ports that are connected to network nodes that are
not powered devices (that is, devices that receive their power from another
power source) function as regular Ethernet ports, without PoE. The PoE
feature remains activated on the ports but no power is delivered to the
devices.
PoE Standards The x530-10GHXm, x530-18GHXm, x530-28GPXm and x530-52GPXm
switches support these PoE standards:
PoE (IEEE 802.3af): This standard provides up to 15.4 watts at the
switch port for powered devices that require up to 13.0 watts.
PoE+ (IEEE 802.3at): This standard provides up to 30.0 watts at
the switch port for powered devices that require up to 25.5 watts.
The x530-10GHXm and x530-18GHXm switches support this additional
PoE standard:
PoE++ (IEEE 802.3bt): This standard provides up to 90.0 watts at
the switch port for powered devices that require up to 71.0 watts.