EnGenius EnTurbo Outdoor AP/Bridges are powered via 24V proprietary PoE
and are not directly compatible with IEEE 802.3af/at PoE injectors or
switches.   However, a standard IEEE 802.3af/at PoE injector or
switch can be used to power an AP if an EnGenius EPD4824 PoE converter is
placed in-line between the IEEE 802.3af/at PoE injector / switch and the
AP.  The EPD4824 takes IEEE 802.3af/at PoE input at 48V and converts
it to 24 V PoE output for the access point.