HP PROCURVE 2520 Planning And Implementation Guide

9-11
Planning and Implementation for the 3500yl Switches
Planning Your PoE or PoE+ Configuration
Planning and
Implementation for the
3500yl Switches
The table in this example configuration contains entries that show the PoE+
power available for the 3500yl-48G-PoE+.
Figure 9-8. Example of a 3500yl-48G-PoE+ Switch connecting to a HP ProCurve
630 External and/or Redundant Power Supply (J9443A)
The switch can be supplied with power should either part of the internal power
supply fail. The 630 RPS/EPS can supply system power to keep the switch
powered on and PoE+ power to supply the attached PoE+ devices with power
The lowest loaded bank of ports (1-24 or 25-48) has 22 watts reserved. That
power is available for use by the two highest priority ports in the bank, (in a
default configuration ports 1 and 2, or 25 and 26).
3500yl 24 port switch
630 RPS/EPS
Source of
Power
Watts
Available
# of Ports Powered and
Average watts/Port
Redundant # of Ports
Powered and Average
watts/Port
Internal PoE
Power Supply
398 12 @ average 30 W each
25 @ average 15.4 W each
48 @ average 7.5 W each
48 @ average 4.0 W each
None
Internal plus
External PoE+
power Supply
398 + 382
1 - 24 25 - 48
24 @ average 30 W each
48 @ average 15.4 W each
12 @ average 30 W each
24 @ average 15.4 W each
48 @ average 7.5 W each
External PoE+
Power Supply
(failed Internal
Power Supply)
382
(22 W is
reserved for
either ports
1-24 or 25-48)
12 @ average 30 W each
25 @ average 15.4 W each
48 @ average 7.5 W each
48 @ average 4.0 W each
None

HP PROCURVE 2520 Specifications

General

Brand	HP
Model	PROCURVE 2520
Category	Software
Language	English