DocumentCode
1434931
Title
Pulse-code-modulation exchange switching
Author
Flowers, T.H.
Author_Institution
, London, UK
Volume
119
Issue
8
fYear
1972
fDate
8/1/1972 12:00:00 AM
Firstpage
1129
Lastpage
1134
Abstract
The large and increasing quantity of pulse-code-modulation (p.c.m.) transmission circuits being installed in the national network means that the exchanges of the future will have to switch p.c.m. as well as analogue circuits. The paper analyses the problem of p.c.m. channel switching, and concludes that exchange switches using the simplest kind of crosspoints to provide analogue transmission of the channel digits serially within the basic 32-channel slot time, with a minimum slot changing, represent the simplest, cheapest and most reliable general solution.
Keywords
pulse-code modulation; switching systems; telephone exchanges; PCM; analogue transmission; channel digits; channel switching; cross points; pulse code modulation exchange switching; transmission circuits;
fLanguage
English
Journal_Title
Electrical Engineers, Proceedings of the Institution of
Publisher
iet
ISSN
0020-3270
Type
jour
DOI
10.1049/piee.1972.0214
Filename
5251893
Link To Document