What is time switches, Electrical Engineering

Assignment Help:

Q. What is Time Switches?

Principle of a time switch is displayed in Figure. It connects an incoming n channel PCM highway to an outgoing n channel PCM highway. As any incoming channel can be connected to any outgoing channel, its equivalent to space division cross point matrix with n incoming and n outgoing trunks, as displayed in Figure. Time-slot interchange is carried out by means of two stores, each having a storage address for every channel of PCM frame. The speech store contains the data of each of the incoming time-slots (that is its speech sample) at a corresponding address. Each address of connection store corresponds to a time slot on outgoing highway. It comprises the number of time-slot on the incoming highways whose sample is to be transmitted in that outgoing time-slots. Information is read into speech store cyclically in synchronism with the incoming PCM systems; though, random access read out is used. Connection store has cyclic read out however writing in is non-cyclic. To establish a connection, number (X of the time-slot of an incoming channel is written into the connection store at the address corresponding to the selected outgoing channel (Y).During each cyclic scan of speech store, incoming PCM sample from channel X is written into address X. During each cyclic scan of connection store, number X is read out at the beginning of time-slot Y. This is decoded to select address X of speech store, whose contents are read out and sent over the outgoing highway.

1889_What is Time Switches.png


Related Discussions:- What is time switches

With a block diagram explain fiber optic communication, With a block diagra...

With a block diagram explain fiber optic communication system Ans: The block diagram of a fiber optic communication system is display below: The input signal is giv

Determine the apparent power and the reactive power, Q. A balanced electric...

Q. A balanced electrical industrial plant load of 9.8 MW with 0.8 lagging power factor is supplied by a three-phase 60-Hz system having a maximum rating (load-carrying capacity) of

Supernode, how does creating a supernode helps solve the problems?

how does creating a supernode helps solve the problems?

Compute the firing angle for the rated braking torque, Consider a 3-hp, 220...

Consider a 3-hp, 220-V, 1800-r/min separately excited dcmotor controlled by a single-phase fully controlled rectifierwith an ac source voltage of 230Vat 60Hz.Assume that the full-l

Explain properties and application of copper, Explain properties and applic...

Explain properties and application of Copper. Properties 1) Cooper is reddish brown in color. 2) Cooper is malleable and ductile and can be forged, cast, rolled, mach

FRACTIONAL PID TUING USING GA FOR LOAD FREQUENCY CONTROL, Iam doing my proj...

Iam doing my project on LFC using tuned FOPID.I have considered a two area model..I need help regarding my project.i need help regarding implementation of GA MATLAB code for a two

Describe the working of bistable multivibrator, Q. Describe the working of ...

Q. Describe the working of bistable multivibrator A bistable circuit is one which can exit indefinitely  in either of two stable states and which can be induced to make an abru

Rectifier, wave form of half wave rectifier with rl load

wave form of half wave rectifier with rl load

Transformer question, When I read the details of how a transformer works an...

When I read the details of how a transformer works and apply those rules to a transformer where the primary core cross-sectional area is twice that of the secondary, I come up with

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