4.2 Menu Operation
Main menu interface introductions
The main menu function includes recording search, system information, system setting, recording control, hard disk drive management, alarm
control, Advanced Options, file backup, turn off system.
Explanation:
The all-following sub-menu setting should to take effect after save, otherwise, the setting invalid.
The checkbox be filled means that someone function sleeted, not be filled that means no select some one function.
4.2.1 Play Back
To achieve the recording search and playback function, the listed searching according to the recording mode(all, normal, alarm, dynamic detection),
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