Planet GSD-808HP User Manual page 5

PSE (Power Sourcing Equipment) is a device (switch or hub
for instance) that will provide power in a PoE setup. The maximum
allowed continuous output power per such device in IEEE 802.3af is
15.4 watts and in IEEE 802.3at is 30 watts.
PD (Powered Device) such as IP phone, network camera or wire-
Note
less access point is a PoE-enabled terminal that consumes energy
supplied by PSE.
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