hub, range extender, or power supply unit.
How to install 12–24V PSU for Hub 2/Hub 2 Plus/ReX 2
1. Remove the screws and take off the hub or range extender from the
SmartBracket mounting panel, shifting the device up.
2. Switch off the hub or range extender holding the power button for 2 seconds.
3. Disconnect power and Ethernet cables.
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