Basic architecture of digital switching systems, Electrical Engineering

Assignment Help:

Q. Explain the basic architecture of digital switching systems. Explain in detail companding.

Ans:

A simple N X N time division space switch is displayed in Figure. Switch can be represented in an equivalence form as a two-stage network with N X 1 and 1 X N switching matrices for first and second stages corresponding as displayed in Figure. Network has one link interconnecting the two stages. Every inlet/outlet is a single speech circuit corresponding to a subscriber line. Speech is carried as PAManalogue samples or PCM digital samples, occurring at 125-µs intervals. When PAM samples are switched in a time division manner, switching is called analogue time division switching. If PCM binary samples switched, then switching is termed as digital time division switching. In Figure, the interconnected by a suitable control mechanism and speech sample transferred from the inlet to the outlet.

2406_Basic architecture of digital switching systems.png


Related Discussions:- Basic architecture of digital switching systems

Determine the power flow diagram for a dc generator, a. Determine the power...

a. Determine the power flow diagram for a DC generator. b. A shunt wound DC generator delivers 496 A at 440 V to a load. The resistance of  the shunt field coil is 110? and that

Define sampling frequency, Define Sampling Frequency? Since real analog...

Define Sampling Frequency? Since real analog signals consist of several frequencies, spectrum of the input signals should be limited to make sure that no signal energy exists a

Various steps in designing the counter, Design a mod-15 counter. Explain th...

Design a mod-15 counter. Explain the various steps in designing the counter

The resistance of an electrical conductor, The resistance of an electrical ...

The resistance of an electrical conductor depends on 4 factors, these being:   a)  The length of the conductor   b)  The cross-sectional area of the conductor

Characteristics of common source amplifier, Characteristics of Common Sou...

Characteristics of Common Source Amplifier At low frequencies and by using a simplified hybrid-pi model, the following small-signal characteristics can be derived.

Explain low-frequency response of rc coupled amplifier, Q. Explain low-freq...

Q. Explain low-frequency response of RC coupled amplifier. What are the reasons for reduction in gain at low frequencies? The RC coupled amplifier circuit contains capacit

.energy, units of potential energy

units of potential energy

Explain stages of attending to rail fracture, Q. Explain stages of attendin...

Q. Explain stages of attending to Rail fracture? Various stages of attending to Rail fracture / weld failure in a L.W.R. track in field - Equipment required - i) Special

Circuit with inductive load, Circuit with inductive load  Electromagnet...

Circuit with inductive load  Electromagnetic induction When a conductor is moved across a magnetic field so as to cut by the lines of force (or flux, an electromotive force

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd