Dahua Unit VTO6221E-P - 4.3 Access Control

Local Setting 8
Video & Audio Figure 4-2
Configure parameters, and these configurations take effect immediately. See Table 4-2. Step 2
Table 4-2 Video parameter description
Parameter
Description
Main
Stream
Video Format
Select the video resolution from 720P, WVGA, and D1.
Format Rate
Configure the number of frames in 1 second. You can select
from 1 to 25 under PAL, and 1 to 30 under NTSC. The larger
the value is, the smoother the video will be.
Bitrate Rate
Configure the data amount that transmitted in 1 second. You
can select as needed. The larger the value is, the better the
video quality will be.
Sub
Stream
Video Format
Select the video resolution from CIF, WVGA, QVGA, and D1.
Format Rate
Configure the number of frames in 1 second. You can select
from 1 to 25 under PAL, and 1 to 30 under NTSC. The larger
the value is, the smoother the video will be.
Bitrate Rate
Configure the data amount that transmitted in 1 second. You
can select as needed. The larger the value is, the better the
video quality will be.
Conditions
Scene Mode
Adjust the video to adapt to different scenarios. You can
select from Automatic, Sunny, Night and Disabled. It is
Automatic by default.
Day/Night
Mode
You can select from Automatic, Colorful or Black White
mode.
BackLight
Mode
You can select from the following modes:
Disabled: no back light.

Backlight: the camera gets clearer image of the dark
