Reset Button; Usb Connector - D-Link DNS-722-4 Guia De Instalacion

Reset Button:

A pinhole button located beside the Ethernet socket is used to reset the
system or restore the factory default settings. To reset, simply press and
hold the button until the power LED flashes.

USB Connector:

A UPS can be used as an emergency power supply for the NVR. The UPS
can use the USB interface to notify the NVR to perform a proper shutdown
before battery power runs out.
Security Cable Slot:
An external lock can be affixed to this slot to prevent theft.
Fan:
The NVR will adjust the system temperature automatically by turning the
fan on/off.
Cable Holder:
Holds the power cable to ensure a safe operating environment.
Note: After resetting the unit, you will still be able to access the recorded data
on your hard drives.
D-Link DNS-722-4/726-4 Quick Install Guide
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