Dahua HCVR8204A-S3 - 3 Installation and Connections; Check Unpacked DVR; About Front Panel and Rear Panel; HDD Installation

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3 Installation and Connections
Note: All the installation and operations here should conform to your local electric
safety rules.
3.1 Check Unpacked DVR
When you receive the DVR from the forwarding agent, please check whether there is any
visible damage. The protective materials used for the package of the DVR can protect
most accidental clashes during transportation. Then you can open the box to check the
accessories.
Please check the items in accordance with the list. Finally you can remove the protective
film of the DVR.
Note
Remote control is not a standard accessory and it is not included in the accessory bag.
3.2 About Front Panel and Rear Panel
The model in the front panel is very important; please check according to your purchase
order.
The label in the rear panel is very important too. Usually we need you to represent the
serial number when we provide the service after sales.
3.3 HDD Installation
3.3.1 HDD Calculation
Calculate total capacity needed by each DVR according to video recording (video
recording type and video file storage time).
Step 1: According to Formula (1) to calculate storage capacity
i
q
that is the capacity of
each channel needed for each hour, unit Mbyte.
102436008 
ii
dq
(1)
In the formula:
i
d
means the bit rate, unit Kbit/s
Step 2: After video time requirement is confirmed, according to Formula (2) to calculate
the storage capacity
i
m
, which is storage of each channel needed unit Mbyte.
i
m
=
i
q
×
i
h
×
i
D
(2)
In the formula:
i
h
means the recording time for each day (hour)
i
D
means number of days for which the video shall be
kept