Powering The Mr52 With An 802.3Af Power Over Ethernet Switch; Mount The Mr52 - Cisco Meraki MR52 Hardware Installation Manual

4.2.2.3 Powering the MR52 with an 802.3at Power over Ethernet Switch
Route Ethernet cable from a port on an active 802.3at PoE switch to the Eth0 port in the bay of the MR52.
The MR52 is Gigabit Ethernet-capable. To maximize device performance, a Gigabit-capable
switch should be used.

4.2.3 Mount the MR52

19