Power Source Options; Led Indicators And Run Dark Mode - Cisco MR74 Hardware Installation Manual

Meraki offers a number of different antennas for use with the MR74: MA-
ANT-20, MA-ANT-21, MA-ANT-23, MA-ANT-25, MA-ANT-27, and Cisco
AIR-ANT2513P4M-N.
The Meraki MA-ANT-20 omni-directional antennas must be installed
vertically.
The Meraki MA-ANT-21, MA-ANT-23, MA-ANT-25, MA-ANT-27, and
Cisco AIR-ANT2513P4M-N antennas must be installed facing downward,
at least 30 degrees from the horizon line.

2.3 Power Source Options

The MR74 access point can be powered using either an 802.3af capable
PoE switch or the Meraki 802.3af PoE injector (sold separately).

2.4 LED Indicators and Run Dark Mode

Your MR74 uses a single LED to inform the user of the device's status.
Function LED Status
Power Up/ Solid Orange
Boot
Connecting Rainbow
Connected Solid White
Upgrading Flashing
White
The MR74 may be operated in "Run Dark" mode for additional security
and to reduce the visibility of the access point. In this mode, the LED will
not be illuminated. This mode may be enabled through Meraki Dashboard.
Meaning
Power is applied
Device in process of connecting to the
Meraki Dashboard
Fully operational
During boot or no WAN link