DVR systems DVRxx04HF-U Series - Manual (Page 168)

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Type Parameter Function
Sound pop up System sends out alarm sound when alarm occurs.
You can specify as you wish.
Path Here you can specify alarm sound file.
7.6 About
Click about button, you can view current web client information. See Figure 7-63.
Figure 7-64
7.7 Log out
Click log out button, system goes back to log in interface. See Figure 7-64.
You need to input user name and password to login again.
Figure 7-65