DocumentCode
1382185
Title
Time-division-multiplex electronic telephone exchange system for small pax
Author
Toyoda, Kentaroh ; Arakawa, H. ; Yamamoto, Takayuki ; Nakamura, T. ; Hashimoto, Mime
Author_Institution
Fuji Communication Apparatus Manufacturing Company, Ltd., Kawasaki, Japan
Volume
82
Issue
4
fYear
1963
Firstpage
455
Lastpage
464
Abstract
An experimental time-division-multiplex electronic telephone exchange on a 200-line 4-wire PAM (pulse amplitude modulation) system is described. The exchange is composed entirely of solid-state devices. The channel time is divided into four phases which are effectively used to reduce the number of circuit elements of the exchange. For reliable operation, common and multiplexed circuits are duplicated, and fault detection and change-over operation are explained.
Keywords
Capacitors; Clocks; Delay lines; Generators; Logic gates; Radiation detectors; Road transportation;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
Publisher
ieee
ISSN
0097-2452
Type
jour
DOI
10.1109/TCE.1963.6373243
Filename
6373243
Link To Document