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Novel Switching Components for Electronic Telephone Exchanges

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2 Author(s)
Acton, J. ; Plessey Allen Clark Research Cent., Plessy Company Ltd., Caswell, Northants, England ; Pollard, J.R.

Switching devices for electronic telephone exchange applications must meet a number of stringent requirements, particularly if used as speech-path crosspoints in space-division system. For a long-term research program, two classes of crosspoint have been considered: those in which the control electrodes have the same return path as the speech-path electrodes, and those in which the control and switching circuits are totally isolated from each other. A research program on new devices in the latter category is in hand, and devices having useful characteristics have been made and evaluated in a private electronic exchange.

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Communication Technology, IEEE Transactions on  (Volume:14 ,  Issue: 3 )