Dahua DH-VTO9221D, User Manual, Page: 39 / 57

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Parameter Note

D1
：
resolution is 720×576.

QVGA
： ：
resolution is 320×240.
Frame Rate Adjust video transmission speed, as 30 and 25 fps.
Bit Rate
According to actual device input network, select bit rate,
as 256Kbps
，
512Kbps
，
1Mbps
，
2Mbps and 3Mbps.
Brightness Adjust video brightness
Contrast Adjust video contrast
HUE Adjust video HUE
Saturation Adjust video saturation
Gain Mode Auto mode: system automatically adjusts.
Scene Mode Includes: disabled, automatic, sunny and night.
Day/Night Mode Includes: colorful, automatic, black white.
Back Light Mode Four modes available
：
Mirror Horizontally flip video.
Flip Vertically flip video.
Default Restore all parameter in video set tab to default.
5.2.5.2 Audio Set
Go to System Config>Video Set>Audio Set interface, you can set MIC volume and beep
volume. See Figure 5-24.
Figure 5-24
Click Default to restore all parameters in Audio Set interface to default.
5.2.6 User Manage
5.2.6.1 Add User
Step 1. In page, select System Config>User Manager.
Step 2. Click on Add User.
Step 3. In pop-up box fill in user info. See Figure 5-25.