What are concentrators, Electrical Engineering

Assignment Help:

Q. What are concentrators? Elucidate how it helps in connecting number of subscribers.

Ans:

In rural areas, subscribers are usually dispersed. It is both expensive and unnecessary to provide a dedicated pair for each subscriber. 3 techniques are used to gain on the number pairs:

1. Parity lines

2. Concentrators

3. Carrier Systems.

In first technique, two or more subscribers are connected to one line that is called parity line. This scheme isn't used commonly since it has a number of drawbacks. Only one subscriber at a time can use this line. Selective ringing is difficult in addition privacy also isn't maintained. Dialing between two subscribers on same line isn't possible.


Related Discussions:- What are concentrators

Diode, using a sketch explain the frequency response of rc coupled transist...

using a sketch explain the frequency response of rc coupled transistor amplifier

What is non-folded network, Q. What is Non-Folded Network? Non-Folded ...

Q. What is Non-Folded Network? Non-Folded Network: In a switching network, all outlet/inlet connection may be used for inter exchange transmission. In such a case, exchange d

Power system, recent trends in power system

recent trends in power system

Find the minimum load resistor, Q. Consider the non inverting amplifier. Le...

Q. Consider the non inverting amplifier. Let R i = 1k and R f = 2k. Let the op amp be ideal, except that its output cannot exceed ±12 V at a current of ±10 mA. (a) Find the

Digital electronics, Design a logic circuit when to provide an output when ...

Design a logic circuit when to provide an output when any two or three of four switches are closed.

Describe pulse dialling, Q. Describe Pulse dialling? Pulse dialling: ...

Q. Describe Pulse dialling? Pulse dialling: 1.  Generated through make and break contact. 2.  DC Current pulse is generated. 3.  Each number is separated by a short

Explain working of shaded-pole motors, Q. Explain working of Shaded-pole mo...

Q. Explain working of Shaded-pole motors? Shaded-pole motors: The least expensive of the fractional-horsepower motors, generally rated up to 1 / 20 hp, they have salient stator

Describe the lastprivate clause, Q. Describe the Lastprivate Clause? Th...

Q. Describe the Lastprivate Clause? The lastprivate clause declares one or more list items to be private to a thread in additin causes corresponding original list item to be up

Types of bias circuit for class a amplifiers, Types of bias circuit for Cla...

Types of bias circuit for Class A amplifiers: There are five common types of biasing circuits used with Class A bipolar transistor amplifiers: A. Fixed bias B. Collector

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