No. 1 ESS Bus System

Abstract

Communication between the various units within No. 1 ESS demands a complex network of transmission lines. The requirements are radically different from previous offices because a large amount of information must be transmitted at high speed, in digital form, between a multiplicity of locations with a high degree of reliability. A description is given of objectives and of organization and operational modes for the network. The problems involved are discussed together with the hardware by which the objectives were successfully realized.