D-Link | DNS-726-4 - Network Video Recorder Standalone DVR | DNS-722-4 & 726-4 WW-01.indd - D-Link

DNS-722-4 / DNS-726-4
2-Bay Network Video Recorder (NVR)
Trustworthy Surveillance
+ Reliable network camera surveillance
recorder for home and business
+ Record video from up to 4 network
cameras to network storage (HDD is
not included)
+ View real-time video of all 4 cameras
from anywhere in your home or office,
or remotely via the Internet
+ Allows concurrent viewing and
Convenient Interface
+ Effortless network camera setup and
+ User-friendly interface provides
simultaneous live view, recording and
+ Continuous or scheduled recording
with automatic overwrite function
+ Reliable backup and power failure
recovery functions
Precision Technology
+ “Smart Search” technology
accelerates and simplifies event
+ Green solution: Consumes less
power and eliminates the need for a
dedicated PC for continuous recording
+ Live monitoring includes full-screen,
snapshot and pan/tilt/zoom (PTZ)
+ Precision playback with step/
fast forward/rewind and video
+ Export video as AVI or ASF with
+ Calendar search and video preview
before playback
The answer to expensive, outmoded, analog CCTV surveillance systems has arrived.
When coupled with D-Link’s high-resolution and feature-rich IP cameras, the Network
Video Recorder (NVR) offers a comprehensive video display, storage, and management
solution. The D-Link NVR provides reliable high-quality remote monitoring functionality at
a fraction of the cost of conventional surveillance systems.
Instant Live View
D-Link’s intuitive GUI interface simplifies viewing live
and recorded video from the NVR. The camera status
page shows connection and recording status, along with
frame rate and bit rate information for each camera. Total
available recording time for the system is also clearly
displayed for each NVR.
Live Monitoring & Camera Adjustment
Users are provided with a variety of options for viewing
and organizing camera footage on-screen. For a system
with multiple channels, users can simply drag and drop
selected cameras to the viewing area. Camera names
and recording status is displayed via OSD to aid in
identification. Presets from within the interface can be
set to instantly restore a previously saved view.
A single camera may be viewed full-screen with optional
two-way audio. Users can control pan/tilt/zoom (PTZ)
functions from within the interface using the provided
interface buttons or by directly clicking on the video.
Extensive Recording Functionality
A clear single-page interface assists with configuration
including compression, resolution and frame rate for all
connected cameras. The NVR records video from up to
4 local and remote IP cameras. A total of 4 NVRs can
be combined and administered with D-Link’s bundled 16
channel management software.
Once cameras have been set up, a highly configurable
scheduling system allows for continuous recording or
recording during specifically allotted timeframes. Each
camera can be set to record independently at preset
intervals. The DNS-726-4 also provides event recording
based on specific triggers.
Powerful Event Management
The NVR centrally controls the digital output, e-mail
notifications and recording for all the connected
cameras. Input triggers from camera motion detection
or digital input interfaces can additionally be monitored.
These events will be logged, with optional notifications
via e-mail or output devices. Users can set up multiple
contact lists for event notification. A straightforward
logging system organizes events by date for easy recall.
Intelligent Playback
Searching through recorded data can be tedious and
frustrating. However, the NVR’s smart search function
makes detecting notable events effortless. By selecting
a target area on the video and setting search sensitivity,
the smart search will traverse the video database based
on specified search criteria to locate noteworthy events.
Search criteria include options such as motion detection,
missing or abandoned object, lost focus or camera
occlusion. (DNS-726-4 only)
After selecting a desired video period for display, the NVR
can instantly begin playback. The DNS-726-4 supports
4 channel simultaneous playback and the DNS-722-4
supports 1 channel playback. Playback speed control
allows for up to 16x speed fast forward or fast backward
play. The step playback option displays one frame at
a time. Additionally, users can enhance the recorded
video with controls such as brightness, contrast, and
During playback, if a user uncovers video that needs to
be exported, two formats are available. The AVI format
will export raw video. The ASF file format will transpose a
timestamp on the exported video. If a printer is connected
to the user’s PC, the NVR can also print the selected still
The NVR can be configured to overwrite the oldest
data automatically when HDD 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 HDD 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.
The NVR also provides the option to stop recording
when the HDD 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 via DI/
DO interface.
1 Available only in DNS-726-4
DNS-722-4 / DNS-726-4
2-Bay Network Video Recorder (NVR)
Easy Setup and Configuration
+ Directly connectable to the Internet
(PPoE) without the need to install a
remote router
+ Supports PPPoE, DHCP and Static IP
+ 2-bay SATA 3.5” HDD interface
+ Up to 3TB of hard disk storage space of
recorded video2
+ RAID 0/1 and JBOD support
Dependable Data Security
+ Protects important surveillance files
with automatic backups to mirrored
hard drives using RAID 1 technology3
+ USB connection to UPS possible for
power failure notification
Flexible and Scalable
+ Allows connection of up to 4 NVRs
together to 16 cameras and managing
them as a group
+ Stand-alone device: Eliminates the
need for a dedicated PC
+ Supports D-Link, Sony, Panasonic and
Axis network cameras4 with smart PTZ
camera control
Comprehensive Data and Hardware Security
Complete Network Functionality
Recorded data is stored in a secure database. This
recorded data can be backed up to additional storage
locations periodically or whenever needed. The NVR
also includes the option to protect data using a RAID 1
configuration. RAID 1 duplicates the recordings database
onto two separate drives. In the event of an HDD failure,
data integrity is maintained on the secondary HDD.
Maintaining an accurate record of time is essential
if recorded data is to be used as evidence. To ensure
that the recorded time is always accurate, the NVR can
update the system clock from an internet server using
the Network Time Protocol (NTP).
The D-Link NVR ensures the security and integrity of
IP camera footage. Administrators may filter external
connections to the NVR by IP address, limiting access
and thus increasing security. Administrators may also
choose access privileges for users by specifying the
cameras they may access to for live view, playback,
audio and PTZ functions.
The D-Link NVR takes advantage of existing network
architecture, taking advantage of features such as PPPoE
and ADSL services. The NVR can acquire an IP address
from a DHCP server to become easily searchable during
installation. Dynamic DNS is supported for systems
operating without a fixed IP address. The NVR can then
be reached from the internet using an easy to remember
domain name provided by the DDNS service.
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. In the event of a power failure without a UPS, the
NVR will boot up automatically once power is restored.
Of course, the security of data is irrelevant unless the
device itself is protected from theft. For this reason, the
sleek NVR enclosure is compact and easy to conceal in
a secure remote location. A front panel lock protects the
HDD and a rear panel lock can be used to secure the NVR
with a cable.
4 Channel Live View
Network Setup Using D-Link NVR
2 Hard drive(s) not included with the NVR. An internal
SATA drive is required to store video files. RAID
1 mirroring requires the use of two internal SATA
drives. 3TB capacity when two 1.5TB 3.5” hard
disks are installed in your NVR. Disk capacity
may increase pending future advances in HDD
3 To avoid data incompatibility in RAID 1 operation,
use SATA drives from the same manufacturer.
Formatted drive capacity for RAID 1 operation is
dependant on the drive capacity of the lowestsized drive. Older generation SATA drives may be
incompatible. For a list of SATA drives that have
been tested to work with your D-Link NVR, visit
D-Link support web sites.
4 Sony, Panasonic and Axis cameras support
available on DNS-726-4 Professional NVR only.
DNS-722-4 / DNS-726-4
Firmware Specifications
+ Linux
Supported Cameras
+ DNS-722-4: Supports all D-Link network
cameras. Includes support for auto-discovery,
and up to 1.3 megapixel resolution.
+ DNS-726-4: Supports known-brand network
cameras including D-Link, Axis, Panasonic,
and SONY. Specific feature support depends
on software.
Recording Performance
+ Up to 120fps (NTSC) / 100fps (PAL) at CIF
Camera Search
+ UPnP
Audio & Video Recording
+ Synchronized audio & video recording
Compression Format
+ MPEG-4, M-JPEG (for supported cameras)
Video Setting
+ Resolution, quality, frame rate, enable audio,
go to camera interface
Recording Type
+ DNS-722-4: record by schedule, manual
+ DNS-726-4: recording by schedule, manual
and event (DI trigger, motion detection from
Remote Live View
+ Supported via IE remote live viewer
+ Maximum 4 simultaneous channels
Remote Live View Control
+ Live view, preset/go, patrol, focus, PTZ
functions, remote IO (DNS-726-4 only),
snapshot, full screen, digital zoom
Remote Playback Control
+ Playback with normal, fast forward/rewind
and step forward/rewind
+ Smart Search (DNS-726-4 only) Intelligent
detection function: General Motion, Missing
Object, Foreign Object, Camera Occlusion,
Lose Focus
Remote Playback
+ Supported via IE and NVR client
+ Playback system with timeline GUI, search by
event, area, cameras, date and time
+ DNS-722-4: IE & NVR client support 1 channel
+ DNS-726-4: IE & NVR client support 4 channel
simultaneous playback, and intelligent search
by general motion, missing object.
+ Digital zoom to specified area
Overwrite Recording
+ Auto recycling when disk storage is full
File Export
+ Export videos to “AVI” or “ASF” file
(ASF with timestamp)
+ Export images to “BMP” or “JPG” file
User Account
+ Additional accounts can be created to allow
user access to the system, and specify
authorization for camera channels, PTZ, etc.
User Interface
+ Internet Explorer v6 or later
+ NVR Search utility
Hardware Specifications
+ IEEE 802.3/u/z
+ Auto MDI/MDI-X
+ HDD control & manage via PC
+ Reformat Disk
+ RAID 0, 1
Two Reset modes
+ Reset firmware GUI button
+ HW reset button (hold for 5 seconds)
Flash ROM
+ 32MB
+ D-Link DDNS server support
+ 128MB DDR
System Time
+ Set the system time (D-Link NTP, input time,
sync with computer, Daylight Saving Time)
Network Interface
+ Gigabit Ethernet LAN port (10/100/1000 Mbps)
Remote Backup
+ Remote software can backup raw data to
redundant storage
I/O ports
+ RJ45 port x1
+ DC-in jack x1
+ USB port for UPS status update (optional)
System Status
+ Camera status, System status
Network Service Protocols
+ DHCP Client
+ NTP Client (D-Link)
+ DNS Client
+ DDNS Client (D-Link)
+ SMTP Client
+ HTTP Server
+ UPnP
+ IP filtering
Power Adapter
+ DC12V/3A, DC5V/3A
Reset Button
+ Reset to factory default
+ Front panel lock
+ Device lock hole
Power Consumption
+ Max. power consumption: 23.59W
+ Standby state max. power consumption: 7.26W
DNS-722-4 / DNS-726-4
Dimension (W x D x H)
+ 198 (W) x 104 (D) x 132 (H) mm
(7.8 x 4.1 x 5.2 inches)
Supported D-Link Cameras*
+ 1.23 kg (2.7 lbs)
Operating Temperature
+ Operating: 0˚ to 55˚ C (32˚ to 131˚ F)
+ Storage: -20˚ to 70˚ C (-4˚ to 158˚ F)
+ Operating: 5% to 90% (non-condensing)
Package Contents
+ 2-Bay NVR
+ Power Adapter
+ Ethernet Cable
+ Quick Installation Guide
+ Power Cable Holder
+ Keys
+ CD-ROM with:
- Software
- Product Documentation
D-Link NVR Comparison
Fixed Network Camera
Fixed Network Camera
Fixed Network Camera
Audio Network Camera
Wireless G Audio Network Camera
Megapixel Network Camera
Wireless Network Camera with 3G Mobile Video
Wireless Megapixel Network Camera
Megapixel PoE Network Camera
2-Way Audio Network Camera
Wireless 2-Way Audio Network Camera
Day and Night PoE Camera
18x PoE Network Camera
Wireless Day & Night Network Camera
Wireless PT Network Camera with 3G Mobile Video
10/100 Mbps Pan/Tilt Network Camera
802.11g Wireless Audio Network Camera with Pan/Tilt
2.6x PTZ PoE Network Camera
Fixed Dome PoE Network Camera
WDR Fixed Dome Day & Night Network Camera
PTZ Network Camera
802.11g PTZ Network Camera
Simultaneous Playback
1 Channel
4 Channel
Live View
UPS Support w/ USB
Export Image/Video
Physical Security
RAID Support
Low Total Cost of Ownership
Remote Backup
Low Power Consumption
Scheduled/Manual Recording
Camera Power over Ethernet
Event Recording (I/O, motion)
High Stability
Supports D-Link Cameras
Compact Size
Supports Additional Cameras
Feasible Redundant Power
Smart Search
Immune to Viruses and Malware
Remote I/O Support
Powerful Management Software
* Please visit the D-Link web site for an updated list of supported cameras
Surveillance Product Comparison
D-Link Corporation
No. 289 Xinhu 3rd Road, Neihu, Taipei 114, Taiwan
Specifications are subject to change without notice.
D-Link is a registered trademark of D-Link Corporation and its overseas subsidiaries.
All other trademarks belong to their respective owners.
©2008 D-Link Corporation. All rights reserved.
Release 01 (November 2008)
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