Design of microprocessor based private automatic branch exchange. Part-1: Hardware design.

S. G. H. Taqvi; M. Iqbal; S. D. H. Rizvi

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Design of microprocessor based private automatic branch exchange. Part-1: Hardware design.

Author(s)

S. G. H. Taqvi Institute of Pure & Applied Physics, University of Karachi, Karachi, Pakistan

M. Iqbal Institute of Pure & Applied Physics, University of Karachi, Karachi, Pakistan

S. D. H. Rizvi Institute of Pure & Applied Physics, University of Karachi, Karachi, Pakistan

Abstract

Microprocessor based Private Automatic Branch Exchange (PABX) serving eight subscribers is designed. The system has the facilities of internal call, call transferring, conferencing and handling incoming and outgoing calls without operator. Software implementation of hardware functions has resulted in a single board system with easy maintenance and small inventory. The paper is presented in two parts: part-I Hardware Design and part-11 Software Design.

Publication Details

Page(s) 9-17

DOI DOI not available

Published Journal: Karachi University Journal of Science, Volume: 11, Issue: 1, Year: 1983

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