Impedance adjustment system for telecommunication equipment

摘要

The system includes a passive damping circuit (46) which is provided for each doubled function block. A damping circuit output is connected with the first (42) and second (44) function blocks. The damping circuit output impedance is lower than its input impedance. The damping circuit output impedance is equal to the average value of the whole or half of the input impedance in one of the two function blocks. The damping circuit is located in the equipment rear plane. The first and second function blocks are each located on their own circuit board. The input signal is fed to both circuit boards via a passive damping circuit comprising two resistances, which are coupled as a voltage divider.