Vivotek ND9542P 32-Channel 4K UHD NVR (No HDD) - Manual (Page 134)

VIVOTEK - Built with Reliability
134 - User's Manual
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4-3. Buzzer - The buzzer is sounded on the occurrence of the event. The buzzer tones are
categorized into: Critical (1 long, 1 sec interval) Major (1 long 2 shorts, 1 sec interval),
Normal (3 shorts, 2 sec interval), Minor (2 shorts, 2 sec interval), and Notify (2 very shorts)
depending on the importance of an event. Select a Buzzer modulation from the drop-down
list.
A long tone has a duration of 1 second, while a short tone 0.5 second. A very short tone
lasts only for 0.1 second.
Select how many times the buzzer tones will be repeated on the occurrence of an event.
If events of different importance are issued at the same time, e.g., one major and one minor
event, system will ignore the minor event and sound the buzzer tone for the major event
only. The buzzer can be sounded either by the Alarm actions or the system events. If Alarm
actions and system service events occur at the time, Alarm actions have the higher priority.
If multiple Alarm actions occur, the currently-sounded events can be depleted by the new
event.
There are conditions that the system will sound the buzzer, and the conditions are not
configurable.
1. Disk failure - missing drives or SMART detected failures.
2. Disk full - the free space is too small for recording tasks.