Buffalo HS-D300GL User Manual page 62

Maintenance Settings - Shutdown
Shutdown:
The Shutdown function in LinkStation allows
an administrator to shut down LinkStation
without using the power button.
This feature can be handy if LinkStation is
being configured from a location not close to
the LinkStation's power button.
Press the Execute button to shutdown the
LinkStation. The LinkStation can then only be
turned on by pressing the power button on the
front of it or by waiting for the Wake Up Time (if
Disk Sleep is enabled on page 53).