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1. Go to the Hardware tab in the System settings window.
2. Select the Camera object corresponding to the adjusted camera in the object tree.
3. Select the Basic settings tab on the settings panel of the Camera object.
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4. In the Pre-alarm record field, specify the time interval in seconds during which the pre-alarm event is recorded.
5. Click the Apply button.

The table provides the information on pre-alarm recording options.

In Axxon PSIM, you can perform recording in the Pre-alarm record mode if the camera is disarmed. You can do it using the DoReact("CAM","1","REC","rollback<1>") program (see The Script object. Programming using the JScript language).

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