LEGRAND 430 522 Manuel D'utilisation page 28

• Terminal Resistor Setup
• The terminal resistor is used if your system is one of following two cases.
• Case 1: 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 terminal point.
This reflected signal cause distortion of original signal. Accordingly, 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.
• Case 2: Multiple cameras are controlled at the same time
Due to similar reasons with case 1, the terminal resisters of controller and the last camera must be set
to 'ON' state. Last camera means decided by cable length. Do not turn on the terminal resistor of all
cameras.
The complete informations are in the manual on the CDrom
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