Speed Dome Camera Instruction Manual
10
1
2
3
4
ON
ON
Terminal Resistor Setup
1
2
3
4
ON
ON
z
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.
INSTALLATION
2
Terminal resistor is used if your system meets one of following two
conditional cases.
z
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
t
r of both sides (i.e. camera and controller) must be
s
z
C
he same time
Due to similar reasons stated in case 1, the terminal resisters of the
controller and
a must be set to ‘ON’
ate
he
camer
the longes
l
s
to
the
er
Do not
o
re
o
esulting in a degradation of camera function. In this case, the
erminal resisto
et to the ‘ON’ state.
ase2: Multiple cameras are controlled at t
the last camer
st
. T
a with
t cab e length i determined
be
‘last’
cam a.
turn n the terminal sist r of all cameras.
Controller
#1
#2
#n
Terminal Resistor ON
RS-485
Termin l Resi
OFF
Te
a
s
OFF
T
n
si
ON
a
stor
rmin l Resi tor
ermi al Re stor
