D-Link DNR-322L User Manual page 9

Section 1 - Product Overview
The SNMP consists of the following three key components:
» Manager: Network-management station (NMS), a server which executes applications that monitor and
control managed devices.
» Agent: A network-management software module on a managed device which transfers the status of
managed devices to the NMS.
» Managed device: A network node on a managed network. For example: routers, switches, bridges, hubs,
computer hosts, printers, IP telephones, network cameras, web server, and database.
Fully Functional Recording
• Flexible Recording Schedule: Once your 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. It also provides event recording based on specific triggers.
• 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.
• Recording Stop Alert: The NVR also provides the option to stop recording when the hard disk is full. When
the disk reaches capacity, a notification can be sent via e-mail and an audible alarm will sound.
Comprehensive Data and Security
• Auto Boot after Power Recovery: The NVR will boot up automatically once the power is restored after a
power outage.
• Access List Control: Users can specify safe and blocked IP addresses to filter external connections, increasing
data security.
• Multiple User Privilege Control: Administrators may also choose access privileges for users by specifying the
cameras they may have access to for live view, playback, audio, and PTZ functions.
• Backup Recording Data: Recorded data is stored in a secure database. This recorded data can be backed up
D-Link DNR-322L User Manual 5