Terminal Resistor Setup - LEGRAND 4 305 21 User Manual

Terminal resistor Setup

Terminal resistor is used if your system is one of following two cases. Terminal resistor is used if your system is one of following two
 Case1: Control cable between camera and controller is relatively very long (1:1 connection)
Case1: Control cable between camera and controller is relatively very long (1:1 connection) Case1: Control cable between camera and controller is relatively very long (1:1 connection)
If communication cable is very long, the electrical signal will bound in the cable is very long, the electrical signal will bound in the terminal point. This reflected signal cause distortion of
original signal. Accordingly, the camera can be out of control. In this case, the dingly, the camera can be out of control. In this case, the terminal resistor of both sides i.e. camera and
controller must be set to 'ON' state.
 Case2: Multiple cameras are controlled at the same time
Due to similar reasons with case 1, the terminal
means decided by cable length. Do not turn on the terminal resistor of all cameras. means decided by cable length. Do not turn on the terminal resistor of all
cameras are controlled at the same time
terminal resisters of controller and the last camera must be set to sters of controller and the last camera must be set to 'ON' state. Last camera
point. This reflected signal cause distortion of
resistor of both sides i.e. camera and
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