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Electronic Switching Network of the IBM 2750

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1 Author(s)
Reynier, R.E. ; IBM Centre d''Etudes et Recherches, La Gaude, France

A description of the voice and data switching network of a fully electronic private automatic branch exchange (PABX) is given, including a description of the crosspoint device and its principles of operation. Some related circuity is described, including the terminal and service circuits, supervision circuits and a loss-compensation device.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Journal of Research and Development  (Volume:13 ,  Issue: 4 )

Date of Publication:

July 1969

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