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D-Link DNS-722-4/DNS-726-4 User Manual
Section 1 - Product Overview
Fully Functional Recording
1.
Flexible Recording Schedule:
Once cameras have been set up, a highly configurable scheduling system
allows for continuous recording or recording during specifically allotted time frames. Each camera can be set
to record independently at preset intervals. The NVR also provides event recording based on specific triggers.
2.
Recording Automatic Overwrite:
The NVR can be configured to overwrite the oldest data automatically
when Hard Disk space runs out, allowing for continuous and uninterrupted recording. Users can specify the
number of days the recording should be kept (within the limits of the Hard Disk capacity). For example, if the
NVR has the capacity to store 7 days of recording, using the overwrite option, the NVR will record the 8th day
and delete the 1st day.
3.
Recording Stop Alert:
The NVR also provides the option to stop recording when the Hard Disk is full. Should
the disk reach capacity, a notification can be sent via E-mail or to an external device such as an audible alarm
or LED display.
Comprehensive Data and Hardware Security
1.
Secure Data:
RAID 1 duplicates the recordings database onto two separate drives. In the event of an Hard
Disk failure, data integrity is maintained on the secondary Hard Disk.
2.
Auto Boot after Power Recovery:
The NVR will boot up automatically once the power is recovered after a
power outage.
3.
Access List Control:
User can specify safe and blocked IP addresses to filter the external connections; this
feature increases data security.
4.
Physical Security:
NVR enclosure is compact and easy to conceal in a secure remote location. A front panel
lock protects the Hard Disk and a rear panel lock can be used to secure the NVR with a cable.
5.
Multiple User Privilege Control:
Administrators may also choose access privileges for users by specifying
the cameras they may have access to live view, playback, audio, and PTZ functions.
6.
UPS Status Monitor:
A UPS can be used as emergency power supply for the NVR. The UPS uses a USB
interface to notify the NVR to perform a proper shutdown before battery power runs out.
7.
Backup Recording Data:
Recorded data is stored in a secure database. This recorded data can be backed
up to additional storage locations periodically or whenever needed.