A network administrator is adding 24 – 802.3af class 2 VoIP phones and needs to purchase a single
PoE switch to power the phones. Which of the following is the MINIMUM PoE dedicated wattage the
switch supports to power all of the phones at full power?
A.
96W
B.
168W
C.
240W
D.
369.6W
Why is it not 369.6w? 15.4w per device, and there is 24 devices. To run all the devices there needs to be at least 369.6w.
0
0
the 15.4W is for a class 0, the minimum for class 2 is 7W
IEEE 802.3af Device – Class 0 (15.4W)
IEEE 802.3af Device – Class 1 (4W)
IEEE 802.3af Device – Class 2 (7W)
IEEE 802.3af Device – Class 3 (15.4W)
0
0