3
②
Bitrate
There are 8 levels of bit rate to choose from in the main stream menu, 4Mbps, 2Mbps, 1Mbps, 512Kbps,
256Kbps, 128Kbps, 64Kbps, AUTO; in the sub stream menu, there are 6 levels of bitrate to choose from,
1Mbps, 512Kbps, 256Kbps, 128Kbps, 64Kbps and AUTO. The higher the bitrate, the clearer the image
and the larger the video file. Therefore, all factors should be considered In the options of Bitrate, AUTO
is defined as follows.
Bitrate
Main stream
Sub stream
AUTO
If a 1080P camera is connected, the
bit rate will be 4Mbps. For a 720P
camera, it’ll be 2Mbps. And for a D1
camera, it’ll be 1Mbps.
Whatever cameras are connected,
the bit rate will always be 64Kbps.
③
Framerate
There are 8 kinds of optional framerates in Main stream and Sub stream menu: 30fps(NTSC),
28fps(NTSC), 25fps, 20fps, 15fps, 14fps, 10fps and 5fps. The higher the frame rate is and the smoother
the picture is, the larger the video file will be. (Note: mixed connection of camera with different frame
rates is not allowed.)
SSD/HDD / SD
Capacity
Video Quality
File Length
2TB
8 x 1080P / 4Mbps
≈
150h
8 x 720P / 2Mbps
≈
300h
8 x D1 / 1Mbps
≈
600h
1 x 1080P / 4Mbps
≈
1200h
1 x 720P / 2Mbps
≈
2400h
1 x D1 / 1Mbps
≈
4800h
512GB
8 x 1080P / 4Mbps
≈
38h
8 x 720P / 2Mbps
≈
75h
8 x D1 / 1Mbps
≈
150h
1 x 1080P / 4Mbps
≈
304h
1 x 720P / 2Mbps
≈
608h
1 x D1 / 1Mbps
≈
1216h
