Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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 telephone number between 00 and 99. This number identifies group selector value and final selector values. As the dialing of telephone number is done the corresponding group selector and then final selector levels are switched. Desired schematic for 100 lines exchange with 24 two motion selectors is shown in Figure.
In this case, 24 simultaneous calls can be put through switch. Generally a 24-outlet Uni-selector is used as a selector hunter. Every one of the 24 outlets is connected to one two-motion selector. So a subscriber has access to all the 24 two-motion selectors in system. Corresponding outlets of all the selector hunters are commoned and hence all subscribers have access to all the two-motion selectors. This scheme is displayed in Figure. Call establishment in this scheme takes place in two steps. Firstly, when subscriber lifts his receiver handset, his Uni-selector hunts through contact positions and seizes a free two-motion selector. At the subsequent step, two-motion selector responds to dial pulses for appropriate connection.
Low Investments in Transmission and Distribution System The investment on T&D system in our country has commonly been lower than that on generation. It is hugely believed in
Q. Show Maximum Common-Mode Input Voltage of amplifier? This is the maximum voltage that the two inputs can be raised above ground potential before the op amp becomes nonlinear
What is a co-processor? 8087 NDP (numerical data processor) is also termed as math co-processor that is used in parallel with the major processor for number crunching applicat
Explain the difference between a microprocessor and an embedded microcontroller
Q. A tank is filled with water to a height of 12.5cm.The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 9.4cm.What is the refractive i
Data Communication 1. Write short notes on: a. Sky wave propagation b. Line of sight propagation 2. List and describe the different types of errors that occur during dat
What are program-invisible registers? The local and global descriptor tables are determined into the memory system. So as to access and give the address of these tables, the pr
GTO ( Gate Turn Off) GTO stands for gate turn off thyristor . it is four layer PNPN device. It can be triggered into conduction like a conventional thyristor by a pulse
Q. Explain Power semiconductor-controlled drives? Power electronics deals with the applications of solid-state electronics for the control and conversion of electric power. Con
Power Spectral Density: To introduce the Power Spectral Density (PSD) of a random signal. To study classical methods for PSD estimation. To investigate model-based
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd