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12v
2006 Apr 06
2
# IP601's with POE per Catalyst 3560G-48PS
...the necessary power to support
24
ports at 15.4W, 48 ports at 7.7W, or any combination in
between" ...370 Watts POE max output.
>From a UPS planning site:
Volts * Amperes = VA
VA * .8 = Watts
To convert small units into large units you divide.
Amperes = 1000/500mA = .5A
VA = 24V * .5A = 12VA
Watts = 12VA * .8 = 9.6 Watts
370 Watts maximum output / 9.6 Watts/phone = 38 phones
Does this logic hold water or change with line loss?
Thank you,
JJW
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