QNAP Security VioStor NVR (Version: 3.3.2) - Manual (Page 146)

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6.4.4 UPS
You can connect a UPS (uninterruptible power supply) to the NVR and enable the UPS
support. When an expected power outage occurs, the UPS is able to supply the power to
the NVR continuously. You can also configure the settings to turn off the NVR after the AC
power fails. If the power of the UPS is insufficient to last for the time specified, the NVR
will shut down immediately for optimized server protection.
* It is recommended to connect the UPS to one of the USB ports on the rear side of the NVR.
 Enable UPS Support
Select this option to enable the UPS support. Enter the time the NVR should wait
before shutting down after the AC power fails. In general, the UPS can supply the
power for 5-10 minutes when AC power fails depending on the maximum load and the
number of connected devices.
 UPS Model
Select the UPS model on the list. If your UPS is not available on the list, please
contact the distributor or QNAP technical support.
 IP Address of UPS
If you select to use ‘APC UPS with SNMP Management’, enter the IP address of the UPS.
Note: It is recommended to use APC Smart-UPS 700+ APC Network Management
Card.