Noise and crosstalk control on N1 carrier systems

The most important sources of noise system noise, secondary induction from telephone plant and external sources, and nonsoldered cable pair joints are discussed together with the methods of alleviating the trouble. Although control of crosstalk had been facilitated by the Nl system design, it still has to be dealt with in connection with transverse crosstalk, crosstalk in lateral cables, and interaction crosstalk at repeaters and at terminals.