Institute for Telecommunication Sciences
the research laboratory of the National Telecommunications and Information Administration

Robert F. Linfield; Martin Nesenbergs; P. M. McManamon

Abstract: The communications network structures currently used to interconnect terminal clusters and switching nodes within an Army tactical command post and area signal center are reviewed. With this background, five alternative structures are defined in terms of their functional requirements. These candidate alternatives are evaluated and a preferred structure is selected based on a number of critical issues including deployment time, flexibility, performance, and survivability. The preferred alternative is a transparent bus-type distribution system incorporating analog-to-digital conversion for analog sources, time division multiplexing, and digital transmission facilities. A three-phase improvement plan is also outlined. The three phases are 1) imbedding the transparent link into the existing network structure, 2) merging these links with digital switches, and 3) changing the topology by adding switches to enh~nce survivability.

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