D-Link mydlink DNR-312L User Manual page 45

Section 4 - Configuration
E-Map: Check E-map to see camera(s) location and connection status.
Camera List: Displays the cameras connected to the NVR and their
respective IP addresses.
Optimize: Click Optimize to fine tune your camera settings for smoother
live viewing and video recording.
Scan Camera: Click Scan Camera and the NVR will use Admin as the user
name and a blank password to automatically add any network cameras
from the same local area network.
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