Title :
The number 5 crossbar dial telephone switching system
Author :
Korn, F. A. ; Ferguson, James G.
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N.Y.
Abstract :
The Number 5 Crossbar System is the newest switching system to be installed for use with dial telephones. It is capable of operation with all present local, tandem, and toll switching systems. It can be used for as few as four digits in a subscriber number, or as many as 11 digits may be used to code the called subscriber completely
Keywords :
Connectors; Joining processes; Maintenance engineering; Registers; Relays; Switches; Switching systems;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1950.6434003
