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The port labeled IoT is meant for BLE applications
Ethernet Ports
The MR42E features a Gigabit Ethernet RJ45 port that accepts 802.3at and 802.3af power (labeled "Eth0, PoE"). This
port should be used for uplink to your WAN connection.
Power Source Options
The MR42E access point can be powered using either the Meraki AC Adapter, PoE Injector (both sold separately), or a
third-party PoE switch.
The MR42E will function in low power mode when powered by a 802.3af power source. While in low power mode, the
MR42E will disable its Air Marshal radio as well as two out of three transmit streams on the 2.4 Ghz band. Despite being
in low power mode, the device can still supply full 802.11ac capabilities.
Factory Reset Button
If the button is pressed and held for at least five seconds and then released, the MR42E will reboot and be restored to
its original factory settings by deleting all configuration information stored on the unit.
LED Indicators and Run Dark Mode
Your MR42E is equipped with a multi-color LED light on the front of the unit to convey information about system
functionality and performance:
• Orange - AP is booting (permanent Orange suggests hardware issue)
• Rainbow - AP is initializing/scanning
• Blinking Blue - AP is upgrading
• Green - AP in Gateway mode with no clients
• Blue - AP in Gateway mode with clients
• Blinking Orange - AP can't find uplink
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