D-Link DCS-6517 User Manual

Configuration

Aspect Ration

Choose ether 4:3 or 16:9 for the aspect ration. This will format the video stream

to better fit the type of display that it will be viewed on. 4:3 is better for standard

definition displays, while 16:9 is meant for displays that are capable of showing wide

format content.

Video Quality Setting for Stream 1~3

Compression Type: The compression level affects the amount of bandwidth and

storage required. Lower compression uses more bandwidth and storage but delivers

better image quality. Of the two options, H.264 consumes much less network

bandwidth compared to JPEG.

Frame Size: Select proper frame size for different viewing devices, bigger frame size

requires more bandwidth and storage usage. For smaller viewers, such as mobile

phones, a smaller frame size and lower frame rate is recommended.

Frame Rate: This option affects the smoothness of the video. Select higher frame

rate for smoother video quality but it requires more storage usage. 10 options

for selection: customize, 1, 2, 3, 5, 8, 10, 15, 20, 25, and 30. The frame rate may

automatically change and some options may not be available depending on the

resolution. The max. frame rate of 4:3 aspect ratio resolution is 15 fps.

Intra Frame Period: Determines the frequency and I frame is planted. The shorter the

duration, the more likely you will get better video quality, but at the cost of higher

network bandwidth consumption. Select the intra frame period from the following

durations: 1/4 second, 1/2 second, 1 second, 2 seconds, 3 seconds and 4 seconds.

Video Quality: This setting limits the maximum refresh frame rate.

• Constant bit rate: To set a fixed bandwidth regardless of the video quality, select

Constant bit rate and the desired bandwidth from 20 Kbps to 8 Mbps. You can also

select Customize and manually enter a value.

• Fixed quality: To optimize the bandwidth utilization and video quality. The

video quality can be adjusted to the following setting: Medium, Standard, Good,

Detailed and Excellent. You can also select Customize and manually enter a value.