I am trying to determine UPS requirements for our switches, I have the following:
2 x Procurve 2650-PWR switches (HP rated power consumption at 631W each)
1 x Procurve 2626-PWR switch (HP rated power consumption at 631W )
1 x Procurve 3500yl-49G switch (HP rated power consumption at 759W)
1 x Procurve 600 RPS/EPS (HP rated power consumption at 800W)
1 x Procurve 620 RPS/EPS (HP rated power consumption at 1440W)
The RPS/EPS units provide the additional power required by the 48 port switches to power IP phones via POE.
Given the power ratings by HP that totals 4892 Watts, the novice in me says that I should need a substantial UPS (like 7kVA) to support that many watts, but the intermediate in me says that I shouldn't calculate on total wattage as it is unlikely that all equipment would run at 100% load, not to mention that experience tells me the equipment would only represent half load on a 1500VA UPS...
My question is in the absence of average power consumption given in watts (or any equipment to measure this) how can I determine what is the appropriate UPS sive to handle the load?
Many Thanks,
Chris
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