Ganz Security PT112N PT112N/ Manual - Page 10

Case1, Control, cable, between, camera, controller, relatively long 1:1 connection, Case2: Multiple

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ON ON 1234 ‰ Terminal Resistor Setup ON ON 1234 INSTALLATION 2 z Pin 3 is only for supplier, DO NOT CHANGE THESE ITS ORIGINAL U STATE. If you change one of these, proper operation can not be U achieved. ~ Pin 3 PAL / NTSC system selection of Camera. DO NOT U CHANGE THIS PIN. U 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, resulting in a degradation of camera function. In this case, the terminal resistor of both sides (i.e. camera and controller) must be set to the 'ON' state. z Case2: Multiple cameras are controlled at the same time Due to similar reasons stated in case 1, the terminal resisters of the controller and the last camera must be set to 'ON' state. The camera with the longest cable length is determined to be the 'last' camera. Do not turn on the terminal resistor of all cameras. Speed Dome Camera Instruction Manual 10

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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,
U
DO NOT CHANGE THESE ITS ORIGINAL
STATE
U
.
If you change one of these, proper operation can not be
achieved.
~
Pin 3
PAL / NTSC system selection of Camera.
U
DO NOT
CHANGE THIS PIN
U
.
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,
resulting in a degradation of camera function. In this case, the
terminal resistor of both sides (i.e. camera and controller) must be
set to the ‘ON’ state.
z
Case2: Multiple cameras are controlled at the same time
Due to similar reasons stated in case 1, the terminal resisters of the
controller and the last camera must be set to ‘ON’ state.
The
camera with the longest cable length is determined to be the ‘last’
camera.
Do not turn on the terminal resistor of all cameras.