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As soon as an alarm is accepted for evaluationevent is taken into processing, the alarm event recording is played back automatically one time, at 1X speed. Playback is launched either from the moment of the beginning of the alarm event, or from the moment corresponding to the position of the alarm event flag (only when the alarm event is initiated automatically; —see the section Initiating an alarm in the system).

If the alarm event was initiated automatically, the visual element set for the detection tool which initiated the alarm event will be displayed in the viewing tile Surveillance window: or a detection area or virtual tripwire, which triggers the detection tool when it is crossed. The object which caused the trigger will be outlined with a red frame.

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The name of the detection unit tool that initiated the alarm event is displayed in the lower portion of the viewing tileabove the buttons for alarm assessment.

To navigate the fragment of an alarm event, use the Advanced archive navigation panel (see Navigation using the advanced panel) or the Playback panel (see Navigating using the Playback Panel).

To switch go to a the required fragment of an alarm event in order to play it again, hold the timeline the timeline pointer with the left mouse button and drag it to the required position.