Edimax Technology EW-7428HCn - Manual (Page 9)

9
3. If you are using a router then plug the power adapter into a wall socket,
and connect it to the 5V DC power port on the access point. Reattach the
back panel cover, twisting it clockwise to secure it into place.
4. If you are using a PoE switch then it is not necessary to connect the access
point to a power source via the 5V DC power adapter. The device will be
powered by the PoE switch. Reattach the back panel cover, twisting it
clockwise to secure it into place.
Note: If you are using a Power over Ethernet (PoE)
switch, do not use the power adapter included in
the package contents.