Q-See QSD2216 - Manual (Page 43)

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7.8 Save to DVR
To record the video stream to your PC’s HDD , just click" DVR" button and the video stream will be
saved in the directory that you set (the default directory is c:\DVR\)
Note: to play the file saved to DVR, just click "FilePlay" tab to open it.
7.9 PTZ Control
To control the speed dome, just click "UP","DOWN","LEFT" and "RIGHT" buttons to control speed
dome's horizontal or vertical position. Also, you can control speed dome's Iris, Focus and Zoom , just
to select the item and then click the "+" and "-" icons.