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. Explain working of Public Switched Telephone Network?
Public Switched Telephone Network (PSTN) accommodates two kinds of subscribers: private andpublic. Subscribers to private sector are customers who lease equipment, transmission media (facilities) and service from telephone companies on a permanent basis. Leased circuits are configured and designed for their use only and are generally referred to as private line circuits or dedicated line circuits. For instance, large banks don't wish to share their communication network with other users, however it's not effective for them to create their own networks. So banks facilities and lease equipment from public telephone companies and basically operate a private telephone or data network within PSTN. Public telephones companies are sometime called providers because they lease equipment and provide service to other organizations, private companies and government agencies. Most wide area networks (WANs) and metropolitan area networks (MANs) utilize private line data circuits and one or more service provider. Subscribers to public sector of PSTN shareequipment and facilities which are available to all the public subscribers to network. This equipment is appropriately termed as common usage equipment, which includes telephone switches andtransmission facilities. Anyone with a telephone number is a subscriber to public sector of PSTN. As subscribers to public network are interconnected only temporarily through switches, network is often appropriately known as the public switched telephone network (PSTN) and sometimes simply as dial-up network. It is likely to interconnect telephones and modems with one another over great distance in fraction of a second by an elaborate network comprised of central offices, cables (optical and metallic), switches and wireless radio systems which are connected by routing nodes (a node is a switching point). When someone talks about public switched telephone network, they referring to combination of switches and lines that from a system of electrical routes through the network.
Charge density In a semiconductor
Output Characteristics The output or drain characteristic of N - Channel power MOSFET. When gate is made positive with respect to the source an N type channel is formed
??? ????? ????? ???????? ?????? ????????
Q. Mention the advantages and disadvantages of direct coupled coupling? Advantages: 1.Simple circuit due to minimum use of resistor 2.Low
how electromagnetic wave transmitted from the ground are bent back towards the earth when they enter a layer of ionosphere?
Explain the programming of 8254 microprocesser. 8254 Programming: All counters are individually programmed through writing a control word, followed with the initial count.
# NEED ASSIGNMENT ABOUT RECTIFIER CIRCUIT
i need a project creating in electronic/electrical engineering at HNC level, 3000 words Harvard referencing. it can be about anything in this field or i can give a suggestion
An industrial plant consumes 500 kWat a lagging power factor of 0.6. (a) Find the required kVA rating of a synchronous capacitor to improve the power factor to 0.9. (b) If a
Execution Unit receives program instruction codes and data from BIU, implements these instructions and store the result in general registers.
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