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. Describe CCITT hierarchical structure of switching and routing using block schematic.
Ans:
Hierarchical network are capable of handling heavy traffic where required and at the same instance use minimal number of trunk groups. A 5-level switching hierarchy is recommended by CCITT as displayed in Figure. In a strictly hierarchical network, traffic from subscriber A to subscriber B and vice-versa flows through highest level of hierarchy, as follows. Quaternary centres in Figure. A traffic route via the highest level of hierarchy is called the final route. Though if there is a high traffic intensity between any pair of exchanges, direct trunk groups may be established between them as displayed by dashed lines in Figure. These direct routes are termed as high usage routes. Wherever high usage routes exist, traffic is primarily routed through them. Overflow traffic, if any, is routed along hierarchical path. No overflow is permitted from the final route. In Figurethe first choice routing for traffic between subscribers A and B is via high usage route across the primary centres. Second and third choice route and final route are also indicated in Figure. A hierarchical system of routing results in simplified switch design. Three methods are generally used for deciding on the route for a particular connection:
1. Right-through routing.
2. Own-exchange routing.
3. Computer-controlled routing.
Q. Design a water supply scheme for a station, adopting the following data - a) Source of water - River flow at a distance of 1 km. b) Requirement of water - 1 lack gallons p
Q. Frequency-controlled induction-motor drives ? The converters employed for variable-frequency drives can be classified as: • Voltage-source inverter (which is the only one
Properties of a semiconductor: What properties of a semiconductor are determined from a Hall effect experiment ? Sol. The Hall Effect experiment is used to determine th
Literature Review - Software Defined Radio In this section, first two methods to estimate signal to noise ratio (SNR) are reviewed and a few methods for modulation classificati
Q. A negative impedance converter is used, as shown in Figure. Show that the load current i L is given by v in /R, which is independent of Z L . Note that since the load sees a cu
Q. Basic Operation of P-channel enhancement MOSFET? In the fabrication of a p-channel depletion field-effect transistor, the gate is insulated from the channel. Therefore, the
Q. For a transmission-line model that includes only the series impedance Z, sketch phasor diagrams for: (a) Lagging power factor load. (b) Leading power factor load.
Describe, using a flow diagram, the IC design process indicating the CAD tools that could be used at the various levels.
Explain the CMP instruction . CMP: The comparison instruction is a subtraction which changes only the flag bits; the destination operand certainly not changes. A comparison is h
My question about above topic is"what is the use of the of this process" why we do compensation and space charge carrier
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd