User manual

Speed Dome Camera Instruction Manual
10
1234
ON
O
N
 Terminal Resistor Setup
1234
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
T
erminal resistor is used if your system meets one of following two
c
onditional 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