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Q. Explain about Address Structure?
Address Structure: ISDN address structure is illustrated in figure. ISDN number part has a maximum of 15 digits and ISDN sub address part a maximum of 40 digits. National destination code is like an area code in telephony network and is of variable length. ISDN subscriber number is the one normally listed in the directories. It is number to be dialed to reach a subscriber in same numbering area. An ISDN number is a unique worldwide address and unambiguously identifies an end point connection. This end point can be:
1. Single S or T reference point,
2. One to many T reference points at the same site
3. One of many S reference points using direct inward dialing feature.
A single S or T reference point can also be addressed by multiple ISDN numbers. This feature is normally used in internetworking.
Q. Draw a 100 line exchange using two motion selectors and elucidate, how switching takes place in it. Ans: In a 100 line exchange, every subscriber is assigned a 2 digit
Q. Explain about Simplex communication? Simplex communication: Microphone and the earphone are transducer elements of the telephone communication system. Microphone converts
analysis and detail working of bootstrap sweep circuit
1. Find the Nyquist rate for the following signals: (a) x(t) = 5 sin 3000Πt cos 4000Πt (b) A binary channel with bit rate 36000 bps is available for PCM voice transmission.
Explain the energy bands in solids. There are as several energy bands in a solid as there are energy levels in the parent atoms. Many electrical properties of significance
Mixed Mode Simulator: The circuit is preprocessed. The test points and waveform markers are located in input and output of the circuit. GND net is set like reference net.
what is the reason for reduction in low frequency and high frequency regions in the frequency response of an Rc coupled amplifier?
Characteristics of Stepper Motors The main characteristic of stepper motors is torque versus stepping or pulse rate. It give the variation of torque as a function of pu
Q. What do you mean by Signal Processing? The essential feature of communication, control, computation, and instrumentation systems is the processing of information. Because of
Q. Find the exponential form of the Fourier series of the periodic signal given in Figure. Also determine the resulting series if T = 2τ .
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