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

Trivector meter, Trivector Meter A trivector meter is designed to reco...

Trivector Meter A trivector meter is designed to record active, reactive and apparent energy along with MD indicators on all. The trivector meter is a compact unit.  It exchan

What is dtmf dialling, Q. What is DTMF dialling? DTMF dialling 1. ...

Q. What is DTMF dialling? DTMF dialling 1.  Uses push buttons 2.  Uses 8 different frequencies in pairs. 3.  16 different characters can be represented. 4.  The f

8085microprocessor architecture , Normal 0 false false fals...

Normal 0 false false false EN-IN X-NONE X-NONE 8085MICROPROCESSOR ARCHITECTURE

Insulators, various types of electrical insulators used in electrical engin...

various types of electrical insulators used in electrical engineering

Matlab help, hello i have MATLAB 2013 how can i send and receive files usi...

hello i have MATLAB 2013 how can i send and receive files using Bluetooth

Reverse recovery characteristics, Reverse Recovery Characteristics At t...

Reverse Recovery Characteristics At the end of forward  conduction in diode  reverse current  flows for  a short  time. The  device  doesn't  attain its full blocking  capabili

Interpoles, These are small poles fixed to the yoke and spaced in b/w the m...

These are small poles fixed to the yoke and spaced in b/w the main poles. They are wound with comparatively few heavy gauge Cu wire turns and are connected in series with the armat

Superposition theroem, what are the limitations of superposition theroem

what are the limitations of superposition theroem

Composition of mosfet, Composition of MOSFET  In a test pattern the P...

Composition of MOSFET  In a test pattern the Photomicrograph of two metal-gate MOSFETs. Probe pads for two gates and three source or drain nodes are entitled.Generally the se

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