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Digital
Video
Recorder
Quick
Start
Guide
10
Chapter
2
Installation
and
Connections
2.1
DVR
Installation
During
installation
of
the
DVR:
Use
brackets
for
rack
mounting.
Ensure
ample
room
for
audio
and
video
cables.
When
routing
cables,
ensure
that
the
bend
radius
of
the
cables
are
no
less
than
five
times
than
its
diameter.
Connect
the
alarm
cable.
Allow
at
least
2
cm
(
≈
0.75
‐
inch)
of
space
between
racks
mounted
devices.
Ensure
the
DVR
is
grounded.
Environmental
temperature
should
be
within
the
range
of
‐
10
to
+55º
C,
+14
to
+131º
F.
Environmental
humidity
should
be
within
the
range
of
10%
to
90%.
2.2
Hard
Disk
Installation
Before
you
start
Before
installing
a
hard
disk
drive
(HDD),
please
make
sure
the
power
is
disconnected
from
the
DVR.
A
factory
recommended
HDD
should
be
used
for
this
installation.
One
or
two
SATA
hard
disks
can
be
installed
depending
on
different
models.
Tools
Required
:
Screwdriver.
As
the
installation
steps
of
HDD
are
similar
among
different
models,
here
we
just
take
an
example.
Step
1
Remove
the
cover
from
the
DVR
by
unfastening
the
screws
on
the
back
and
side.