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National Repository of Grey Literature 2 records found  Search took 0.04 seconds. 
Generator of signalling tones for telephone exchange
 Srnský, Petr ; Novotný, Vít (referee) ; Zeman, Václav (advisor)
The aim of this semestral thesis is the description and design of signal generator signals to the PBX using electronic components. The generator is used to generate a total of three rectangular signal harmonic signals and one sine wave signal, used for signaling in PABX. In the theoretical part are discussed and described the basic parameters of the alert signal and the ringing signal. In the practical part are designed individual blocks on signal generator. The generator is designed to lead in the panel permanently generated signals. The final section describes how the proposed generator function.
Detailed record
Generator of signalling tones for telephone exchange
 Srnský, Petr ; Novotný, Vít (referee) ; Zeman, Václav (advisor)
The aim of this semestral thesis is the description and design of signal generator signals to the PBX using electronic components. The generator is used to generate a total of three rectangular signal harmonic signals and one sine wave signal, used for signaling in PABX. In the theoretical part are discussed and described the basic parameters of the alert signal and the ringing signal. In the practical part are designed individual blocks on signal generator. The generator is designed to lead in the panel permanently generated signals. The final section describes how the proposed generator function.
Detailed record

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