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ON
ON
1
2
3
4
Terminal Resistor Setup
ON
ON
1
2
3
4
Speed Dome Camera Instruction Manual
Pin 3 is only for supplier, DO NOT CHANGE THESE ITS ORIGINAL
STATE. If you change one of these, proper operation can not be
achieved.
Pin 3
PAL / NTSC system selection of Camera. DO NOT
CHANGE THIS PIN.
Terminal resistor is used if your system meets one of following two
conditional cases.
Case1: Control cable between camera and controller is
relatively long (1:1 connection)
If communication cable is very long, the electrical signal will bind in
the terminal point. This reflected signal causes signal distortion,
r
esulting in a degradation of camera function. In this case, the
t
erminal resisto
r of both sides (i.e. camera and controller) must be
s
et to the 'ON' state.
C
ase2: Multiple cameras are controlled at t
Due to similar reasons stated in case 1, the terminal resisters of the
controller and
the last camer
camer
a with
the longes
cam a.
er
Do not
turn n the terminal
o
Controller
RS-485
#1
Termin l Resi
a
stor
Te
OFF
INSTALLATION
he same time
a must be set to 'ON'
t cab e length i determined
l
s
re
sist r of all cameras.
o
Terminal Resistor ON
#2
rmin l Resi tor
a
s
T
OFF
2
st
ate
.
T
he
to
be
the
'last'
#n
ermi al Re stor
n
si
ON
10
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