HP General PoE Operation

Power Over Ethernet (PoE) Operation for the Series 2600-PWR Switches

General PoE Operation

Term	Use in this Manual
MPS	Maintenance Power Signature; the signal a PD sends to the switch to
	indicate that the PD is connected and requires power. Refer to figure 3
	on page 14.
PD	Powered Device. This is an IEEE 802.3af-compliant device that receives
	its power through a direct connection to a 10/100Base-TX PoE RJ-45 port
	on the switch. Examples of PDs include Voice-over-IP (VoIP) telephones,
	wireless access points, and remote video cameras.
port-number	Refers to the type of power prioritization where, within a priority class,
priority	the switch assigns the highest priority to the lowest-numbered port, the
	second-highest priority to the second lowest-numbered port, and so-on.
	Note that power priority rules apply only if PoE provisioning on the switch
	becomes oversubscribed.
PoE	Power-Over-Ethernet; the method by which PDs receive power from the
	switch (in compliance with the IEEE 802.3af standard).
PSE	Power-Sourcing Equipment. A PSE, such as a Switch 2626-PWR or 2650-
	PWR, provides power to IEEE 802.3af-compliant PDs directly connected
	to 10/100Base-TX PoE RJ-45 ports on the switch. The Switch 2626-PWR
	and 2650-PWR are endpoint PSEs.
RPS	Redundant Power Supply; for example, an HP 600 RPS/EPS. An RPS
	device provides power to a switch if the switch’s internal power supply
	fails. RPS power does not provision PoE ports on a switch whose internal
	power supply has failed. See also “EPS”, above.

General PoE Operation

Configuration Options

In the default configuration, all 10/100Base-TX ports on the switch are config­ ured to support PoE operation. You can:

■Disable or re-enable per-port PoE operation on some ports to help control power usage and avoid oversubscribing PoE on the switch.

■Configure per-port priority for allocating power in case the switch becomes oversubscribed and must drop power for some lower- priority ports to support the demand on other, higher-priority ports.

■Configure a global power threshold on the switch to act as a trigger for sending a notice when the switch exceeds or goes below a specific level of PoE power consumption.

Note The PoE ports on your switch support standard networking links and PoE

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