No. 1 ESS Logic Circuits and Their Application to the Design of the Central Control
- 1 September 1964
- journal article
- website
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Bell System Technical Journal
- Vol. 43 (5) , 2055-2095
- https://doi.org/10.1002/j.1538-7305.1964.tb04120.x
Abstract
The central control is composed of thousands of relatively simple logic circuits, intricately interconnected to perform the primary data processing functions of the No. 1 electronic switching system. This paper discusses both the circuit development of the basic modules and their application to the logic design of some of the high-speed arithmetic circuits required in the central control. Special electrical design features, wiring rules, and circuit pack assignment procedures are also described.Keywords
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