Intellex IP
Installation and Configuration Guide 71
Setting the Record Rate
In Intellex IP, camera resolution is measured in Common Interchange Format (CIF).
The higher the camera resolution, the more system resources are consumed. A camera at 4 CIF
resolution uses 4 times the system resources as a camera at CIF resolution. If all cameras are
configured at CIF resolution, you can configure an aggregate rate of 480 ips. If all cameras are
configured at 4 CIF resolution, you can configure an aggregate rate of 120 ips. If all cameras are
not at the same resolution, determine the maximum aggregate rate:
1 Divide 480 ips by the number of connected cameras.
2 For each connected camera, divide the value from step 1 by:
• 1 if the camera is in 1 CIF mode
• 2 if the camera is in 2 CIF mode
• 4 if the camera is in 4 CIF mode
3 Example: If cameras 1–8 are in CIF mode and cameras 9-16 are in 4 CIF mode:
• 480/16 = 30
• For cameras 1–8: 30/1 = 30
• For cameras 9–16: 30/4 = 7.5
• Max. aggregate = (30 x 8) + (7.5 x 8) = 300 ips
CIF Record Rate
1 CIF = 320 × 240 pixels < 480 ips
2 CIF = 640 × 240 pixels < 240 ips
4 CIF = 640 × 480 pixels < 120 ips
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