The n2 carrier terminal — circuit design

The N2 carrier circuit design takes advantage of solid-state technology to provide economies in power consumption and space requirements over earlier N-carrier equipment. At the same time, improvements in performance have been obtained in the areas of noise, signal distortion, and net loss stability. The last two are obtained through the extensive use of negative feedback in amplifiers and regulators and the use of variolosser diodes in the compandor which are stable over a wide operating range. Wider effective channel bandwidths have been attained. Where the terminal is used for nonvoice services, the resulting decrease in delay distortion is significant. Maintenance and testing on an in-service basis have been provided, including in-service switching of group units and power supplies.