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PowerDsine Presentation October 2005 Page 5
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PoEp minimum voltage
Lets assume current is 0.35A and calculate power delivered to the load by four
pairs
It means, that at 51V, for the same power dissipation on the cable, power
delivered to the load will be 4.9W more then at 44V.
The advantage of higher voltage is further increased for higher currents than
0.35A
32.64W27.74WMaximum power
delivered to the PD
3.06W 3.06WPower dissipation
on 4 pair
51V44V