Development of a terminal device testing system

Τίτλος

Development of a terminal device testing system

Θέμα

Computer software--Development

Telephone--Testing

Δημιουργός

Michael, Andrie

Πηγή

Higher Technical Institute

Το πλήρες κείμενο είναι διαθέσιμο από το Υπουργείο Ενέργειας, Εμπορίου Βιομηχανίας και Τουρισμού.

Εκδότης

Library of Cyprus University of Technology

Ημερομηνία

1996

Συνεισφέρων

Theopemptou, Ch.

Δικαιώματα

Απαγορεύεται η δημοσίευση ή αναπαραγωγή, ηλεκτρονική ή άλλη χωρίς τη γραπτή συγκατάθεση του δημιουργού και κάτοχου των πνευματικών δικαιωμάτων.

Μορφή

pdf

Γλώσσα

en

Τύπος

text

Αναγνωριστικό

EED0575

Σύνοψη

This project deals with the design and construction of a system that is test the handset, the microphone and the speaker, of a payphone or a car phone.
The system can test the handset manually or automatically. Although the requirements of the project were to test the handset only manually, the project was extended and with some additional circuits, the handset can be tested and automatically. In order to test the handset automatically, a software program must be written. In this project a part of this software program is given, but not in detail. However, in the hardware design fully explanation is covered for both way of tests, manually or automatically. The handset, is going to be disconnected from the telephone system and is going to be connected to the testing system.
In manual test the testing can either be started from the external microphone or the external speaker, where in automatic test the equipment to be tested, is automatically tested by the program. The testing is able to be done by sending eight frequencies which are in the range of the BW ( bandwidth) of the telephone, between 300 Hz and 3400 Hz.