HP Power over Ethernet (PoE/PoE+) Planning and Implementation Guide

11-13
Planning and Implementation for the HP 3500-PoE yl Switches
Planning the PoE or PoE+ Configuration
The table in this example configuration contains entries that show the PoE+
power available for the HP 3500-24G-PoE+ yl Switch.
Figure 11-6. Example of an HP 3500-24G-PoE+ yl Switch connecting to an
HP 630 External and/or Redundant Power Supply (J9443A)
Note: The same considerations apply for the mini-GBIC ports as in the
previous example.
One HP 3500-24G-PoE+ yl Switch can be supported by one HP 630 RPS/EPS.
This is a full redundant configuration. The switch can be supplied with power
should either part of the internal power supply fail. The HP 630 RPS/EPS can
supply system power to keep the switch powered on and PoE+ power to
supply the attached PoE+ devices with power.
1
The HP 630 RPS/EPS power supply is rated at 398 watts, however, 382 watts are supplied to
the switch due to line loss on the EPS cable.
HP 3500yl 24 port switch
HP 630 RPS/EPS
Source of
Power
Watts
Available
Number of Ports Powered
and Average watts/Port from
internal supply
Redundant Number of Ports
Powered and Average
watts/Port
Internal PoE
Power Supply
398 13 @ average 30 W each for
a total of 360 W
24 @ average 15.4 W each for
a total of 369.6 W
None
Internal plus
External PoE+
Power Supply
1
398 + 382 26 @ average 30 W each
48 @ average 15.4 W each
and 48 @ 7.5 W each
13 @ average 30 W each for
a total of 360 W
24 @ average 15.4 W each
and 24 @ 7.5 W each
External PoE+
Power Supply
(failed Internal
PoE Power
Supply)
1
382 13 @ average 30 W each for
a total of 360 W
24 @ average 15.4 W each for
a total of 369.6 W
None