PoE/PoE+ Planning and Implementation Guide 2011-09

2-13
Operating Rules
Provisioning Power for PoE
single switch is connected to the EPS ports on the 600 RPS/EPS or a single
port of a pair on the 610 EPS, 408 watts are available, providing fully redundant
PoE power to the switch. If two switch devices are connected to the EPS ports
on the 600 RPS/EPS or to both ports of a pair on the 610 EPS, only 204 watts
are provided to the switch if the internal PoE power supply fails.
The Switch 2610-48-PWR PoE power requirements are different. This switch
has 48 ports and the internal PoE power supply supplies 406 watts across all
48 ports. The switch reserves 22 watts for either ports 1-24 or 25-48, so that
neither set of ports receives the entire 406 watts.
By connecting a 600 RPS/EPS or a 610 EPS to the Switch 2610-48-PWR, more
PoE power is provided to the switch. With the 600 RPS/EPS or the 610 EPS
connected to the Switch 2610-48-PWR, the internal PoE power supply
provides the first 24 ports (1-24) with 406 watts and the 600 RPS/EPS or the
610 EPS supplies the second 24 ports (25-48) with 408 or 204 watts (408 watts
if only one switch is connected to the EPS ports; 204 watts if two switches are
connected to the EPS ports). If the internal PoE power supply in the 2610-48-
PWR switch fails, 408 watts or 204 watts are provided to ports 1-48. 22 watts
of power are always allocated to ports 1-25 or 25-48. See page 5-7.
HP ProCurve 2615-8-PoE Switch
Maximum PoE Power
The Switch 2615-8-PoE provisions 8 ports with its PoE power supply of 67
watts for PoE applications compatible with the IEEE 802.3af standard and
some pre-standard PoE devices.
Note There is no external power supply available for these switches.
Table 2-5. Maximum Power Allocations
PoE Power Requirements
It is important to understand the PoE power requirements of this switch
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.
PoE Devices Internal Only
PoE for Switch
2615-8-PoE
67 watts available to
ports 1-8.