You are able to set the PoE NVR to buzz (beep) when any of the camera's video loss, which is sometimes an efficient way to alert you.
Applies to: RLN4-410 (hardware version H3MB17), RLN8-410 (hardware version H3MB02), RLN8-410-E, RLN16-410 (hardware version H3MB02/H3MB06)
On the NVR monitor, go to Menu > Alarm >Video Loss, select a channel, check Enable, click Set next to Action, and tick Buzzer for the selected camera (channel). Click Apply to save the settings.
Note: You can click the Email Settings to set the email alert for selected cameras (channels) when video lost.