HP procurve J8164A - Manual (Page 20)

3-4
Planning
Planning Your PoE Configuration
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With an HP 600 RPS/EPS Powering Two Switches
■ When two switches are connected to the RPS 600 RPS/EPS ports, the PoE
power available to each switch is a maximum of 184 W. If all of your PDs
consume on average less than 7.6 W each (allowing for any line loss) then
all 24 ports will receive redundant power should a switch’s internal PoE
power supply fail.
■ Redundant power as long as the total power required remains below
184 W.
Source of
Power
Watts
Available
# of Ports Powered and
Average Watts/Port
Redundant # of Ports
Powered and Average Watts/
Port
Internal PoE
Power
Supply 406 24 @ average 15.4 W each
External PoE
Power
Supply
(Failed
Internal PoE
Power
Supply) 184 24 @ 7.6 W each
12 @ 15.4 W each
Second PoE Switch/Module