You are able to set the PoE NVR to buzz (beep) when any of the cameras meet an exception situation, including HDD Full, HDD Error, Net Disconnected and IP Conflict, 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 > Exception, select the exception type you want, and tick Buzzer then click Apply to save the settings. Choose the Type for the exception alarm based on your requirement.
Note: You can click the Email Settings to set the email alert for selected cameras (channels) when the selected camera (channel) meets the exception situation.