Title :
Nation-wide switching of intertoll trunks
Author_Institution :
American Telephone & Telegraph Company, New York, N. Y.
fDate :
3/1/1958 12:00:00 AM
Abstract :
THE NATION-WIDE SWITCHING of intertoll trunks by switching machines instead of manual interconnection at toll switchboards requires many new and improved transmission circuits and equipment arrangements associated with the new switching systems at selected major switching centers. The assurance of satisfactory transmission performance on a high percentage of interconnections requires the establishment of a fundamental switching plan.
Keywords :
Integrated circuit interconnections; Manuals; Marine vehicles; Propagation losses; Switches; Switching circuits; Switching systems;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1958.6445685
