Explain importance of different types of distributing frames, Computer Engineering

Assignment Help:

Explain importance of the different types of distributing frames used in exchanges.

249_Cable Hierarchy For Subscriber Loops.png

Here MDF = main distribution frame; MF = main feeder; FP = feeder point; BF = branch feeder; DW = drop wires; DP = distribution point; DC = distribution cable

FIG - Cable Hierarchy For Subscriber Loops.

Usually four levels of cabling are used as demonstrated in figure. At the subscriber end, the drop wires are acquired to a distribution point. The drop wires are the single pairs which run in the subscriber premises. On the distribution point, the drop wires are linked to wire pairs in the distribution cables. Several distribution cables from nearby geographical locations are terminated on a feeder point; here they are connected to branch feeder cables that, in turn, are linked to the main feeder cable. This main feeder cables carry a larger number of wire pairs, classically 100-2000, than the distribution cables that carry usually 10-500 pairs. The feeder cables are finished on a main distribution frame (MDF) at the exchange. The subscriber cable pairs emanating by the exchange are also terminated at the main distribution frame.


Related Discussions:- Explain importance of different types of distributing frames

Loop level-parallelism based on granularity size, Loop Level This is...

Loop Level This is one more level of parallelism where iterative loop instructions can be parallelized. Fine Granularity  size is used at this level also. Simple loops in a

Advantages of random scan display, Advantages of random scan display ...

Advantages of random scan display Early computer displays: basically an oscilloscope. Control X, Y with vertical/horizontal plate voltage. Often used intensity as

Determine the workarounds in multiple inheritances, What are several issues...

What are several issues for selecting best workarounds in multiple inheritances? Some restrictions methods are used. Use two approaches of delegations, which is an implementati

Explain optimization process of pipelining, Q. Explain Optimization process...

Q. Explain Optimization process of Pipelining ? RISC machines can use a very efficient pipeline scheme due to the regular and simple instructions. Similarly all other instructi

Displays a format of floating-point number, Q. Displays a format of floatin...

Q. Displays a format of floating-point number? A floating binary number +1010.001 in a 16-bit register is able to be represented in normalised form (presuming 6 bits for expone

Why are arrays usually processed with for loop, The real power of arrays co...

The real power of arrays comes from their facility of using an index variable to traverse the array, accessing every element with the similar expression a[i]. All the is required t

Illustrates about metal fix, Illustrates about Metal Fix. A Metal Fix i...

Illustrates about Metal Fix. A Metal Fix implies that only the upper metal interconnects layers are influenced. Connections may be made or broken, but new cells may not be adde

Provision for data buffering, Data buffering is quite helpful for purpose o...

Data buffering is quite helpful for purpose of smoothing out gaps in speed of processor and I/O devices. Data buffers are registers that hold I/O information temporarily. I/O is pe

Write a short note on pointer operators in c, Write a short note on pointer...

Write a short note on pointer operators in c Pointers (that is, pointer values) are generated with the ''address-of'' operator &, which we can also think of as the ''pointer-to

Define mfc, Define MFC. To accommodate the variability in response time...

Define MFC. To accommodate the variability in response time, the processor waits unless it receives an indication that the requested read operation has been done. The control s

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