A technician is asked to install cabling for a new VoIP phone system. Which IEEE PoE standard delivers up to 30 watts per port to support mid-span powered devices?
-
A
IEEE 802.3af (PoE)
-
B
IEEE 802.3at (PoE+)
-
C
IEEE 802.3bt Type 3 (PoE++)
-
D
IEEE 802.3bt Type 4 (PoE++)