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

Describe the functionalities and the purpose of an equalizer, Question: ...

Question: (a) For a CD quality sound, what is the bit depth used and give the amplitude's levels and the dynamic range of this sound quality (b) In audio technology, the dec

What is session layer, Q. What is Session Layer? Session layer is used ...

Q. What is Session Layer? Session layer is used to allow users to identify themselves when waiting access to the network. This is concerned with setting up and sustaining an op

Compute efficiency of transformer in power factor lagging, Q. A 10-kVA, 200...

Q. A 10-kVA, 200:400-V, single-phase transformer gave these test results: • Open-circuit test (LVwinding supplied): 200V, 3.2 A, 450 W • Short-circuit test (HV winding suppli

Find the steady state values, Question: Consider the circuit shown in F...

Question: Consider the circuit shown in Figure. There is no initial energy stored in the circuit until time t=0 when the switch is closed. (i) Transform the given circ

What do you mean by byte, Q. What do you mean by Byte? Without question...

Q. What do you mean by Byte? Without question, the most vital data structure used by the 80x86 microprocessor is the byte this is true since the ASCII code is a 7-bit non-weigh

What are the types of write operations used in 8253, What are the different...

What are the different types of write operations used in 8253? There are two types of write operations in 8253 (1) Writing a control word register (2) Writing a count val

Explain mechanisms of propagation of radio communication, Explain mechanism...

Explain mechanisms of propagation of radio communication. Radio communication deals with electronic radiation of electromagnetic energy from one point to another through atmosp

Compute the generator efficiency at full load, Q. A 100-kW, 230-V, dc shunt...

Q. A 100-kW, 230-V, dc shunt generator, with R a = 0.05 , and R f = 57.5  has no-load rotational loss (friction, windage, and core loss) of 1.8 kW. Compute: (a) The generato

Analyze diode circuit with rlc load, Q. Analyze Diode circuit with RLC load...

Q. Analyze Diode circuit with RLC load? Consider a diode circuit with an RLC load, as shown in Figure, and analyze it for i(t) when the switch S is closed at t = 0. Treat the d

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