
STANDALONE DVR USER MANUAL
69
Dt = Di / T
Step 3: The bit rate of all the channels “Dc” is:
Dc = Dt *(8*1024)/ 3600 = Dt * 2.2756 (Kbit/s)
Alarm Recording
Step 1: Assume the alarming rate is α%, capacity of hard disk is “S”, the total numbers of the channel is “n”. The capacity
of hard disk needed per channel “Di” is:
Di = (S / n) * α%
Step 2: Assume the recording time length is T (hours). The capacity of hard disk needed per hour per channel “Dt” is:
Dt = Di / T
Step 3: The bit rate of all channels “Dc” is:
Dc = Dt *(8*1024)/ 3600 = Dt * 2.2756 (Kbit/s)
3 Default Values
Table VI-5 Default Values
Menu Options in menu Default
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