PoE/PoE+ Planning and Implementation Guide 2011-09

2-9
Operating Rules
Provisioning Power for PoE
Table 2-2. Maximum Power Allocations
PoE Power Requirements
It is important to understand the PoE power requirements of these switches
because if the PoE power is not planned and implemented correctly, end
devices connected to the PoE switch ports may not receive power if a switch
PoE power source failure occurs or if the switch is over provisioned.
Since there is no external power supply available for these switches it is very
important to understand that the 67 watts for the 8-port switches and the 195
watts for the 24-port switches are all there is for PoE power. Therefore, proper
provisioning is very important.
HP ProCurve 2600-PWR Switches
Maximum PoE Power
The Switch 2600-8-PWR provisions (allocates power to) 8 ports with its
internal PoE power supply of 126 watts for PoE applications compatible with
the IEEE 802.3af standard and some pre-standard PoE devices.The Switch
2626-PWR provisions ports 1-24 with 406 watts of power for PoE applications
compatible with the IEEE 802.3af standard. The Switch 2650-PWR provisions
ports 1-48 with 406 watts for PoE. This reduces the per port wattage by half
as compared to the Switch 2626-PWR.
However, by connecting a 600 RPS/EPS or a 610 EPS, you can optionally
provision ports 25-48 with 408 watts of external PoE power, thereby bringing
the per port wattage up to 15.4 watts per port, unless you have the other EPS
port of the 600 RPS/EPS or the other port of a pair on the 610 EPS connected
to a HP ProCurve PoE device. In this case you cannot provision the full 408
watts to the Switch 2650-PWR, only half, or 204 watts.
PoE Devices Internal Only
PoE for Switches
2520-8-PoE
and
2520G-8-PoE
67 watts available to
ports 1-8.
PoE for Switch
2520-24-PoE
and
2520G-24-PoE
195 watts available to
ports 1-24.