Honeywell CADVR-04D User Manual page 220

In the formula:
Step 2: After video time requirement is confirmed, according to Formula
(2) to calculate the storage capacity
channel needed unit Mbyte.
= × ×
m q h D
i i i i
In the formula:
means the recording time for each day (hour)
h
i
shall be kept
Step 3: According to Formula (3) to calculate total capacity
(accumulation) that is needed for all channels in the DVR during
q
T
scheduled video recording.
c
∑
=
q m
T i
=
1
i
channels in one DVR
Step 4: According to Formula (4) to calculate total capacity
(accumulation) that is needed for all channels in DVR during alarm
q
T
video recording (including motion detection).
c
∑
=
×a%
q m
T i
=
1
i
means the bit rate, unit Kbit/s
d
i
, which is storage of each
m
i
(2)
means number of days for which the video
D
i
(3)
In the formula: means total number of
c
(4)
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