User
Manual
of
Day/Night
Box
Camera
Hangzhou Hikvision Digital Technology Co., Ltd. | Copyright ©
13
1.
Back
Focus
Adjustment
Stick:
The
back
focus
has
been
configured
to
optimum
value
acquiescently.
But
it
can
be
adjusted
slightly
to
coordinate
with
different
lens.
Adjust
the
back
focus
stick
when
the
lens
connector
has
been
confirmed
but
the
lens
is
still
not
focalized.
The
steps
are
as
below:
Firstly,
tighten
the
lens,
then
loose
the
set
screw
of
back
focus
stick,
and
adjust
the
stick
left
and
right
until
lens
gets
clear
image,
lastly
lock
the
set
screw.
2.
Auto
Iris
Interface:
There
is
an
interface
for
auto
iris,
the
type
is
negative
pattern
four
square
holes,
and
the
definition
of
pins
is
shown
in
the
figure
above.
The
interface
of
video
drive
auto
iris
is
using
three
pins,
i.e.
Power
+,
Video,
GND;
the
interface
of
direct
drive
auto
iris
is
using
four
pins,
i.e.
damp+,
damp
‐
,
drive+,
drive
‐
.
Auto
Iris
Video
Drive:
The
camera
inputs
the
video
signal
level
into
lens
interior,
and
internal
drive
circuit
outputs
control
voltage
to
adjust
lens
aperture
through
electronic
motor;
Auto
IRIS
Direct
Current
Drive:
The
camera
interior
adds
lens
aperture
electronic
motor’s
drive
circuit,
and
can
directly
output
DC
control
voltage
to
control
lens
electronic
motor.