Videoswitch Vi-R4000 Series Manuel d'utilisateur télécharger pdf (Page 28)

Vi-R4000 Series

Videoswitch Page 22 Mdr602a.doc

3.4.7 Retention Period

The displayed retention period is very much the worst case and assumes the maximum bit-rate on all

cameras at all times and also assumes that event recording is occurring all the time.

3.4.8 Retention Period Tables

The time period for which video recording is retained for before being over-written depends on these

factors:

• Hard drive capacity (1 to 8 Tbyte)

• Frame rate (1 to 25)

• Quality setting (Highest, higher, medium, low, lower, lowest)

• Resolution (4CIF, 2CIF)

• Number of cameras (1 to 16)

• Complexity and movement in each camera view

The tables below give a guide to how many days retention to expect, assuming recommended max bit

rates, continuous recording and the same settings on all cameras. The exact retention period achieved

may differ according to how complex the images are that the cameras are looking at and how much

movement there is.

Depending on how many cameras you have and what hard drive capacity is available, you can see the

trade off between resolution, quality, frame-rate and retention period.

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Videoswitch Vi-R4000 Series Manuel d'utilisateur Page 28