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!
What are the different types of distributing frames used in exchanges?
The various distribution frames used in exchange are demonstrated in figure. Every subscriber in a telephone network is linked generally to the nearest switching office through means of a dedicated pair of wires. Subscriber loop considers to this pair of wires. This is unwisely to run physically independent pairs from all subscriber premises to the exchange. This is far easier to lay cables having a number of pairs of wires for several geographical locations and run individual pairs as needed by the subscriber premises.
FIG - Cable Hierarchy For Subscriber Loops.
Here MDF = main distribution frame;
MF = main feeder;
FP = feeder point;
BF = branch feeder;
DW = drop wires;
DP = distribution point;
DC = distribution cable
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.
Web authoring tools CGI was considered excellent in the beginning since it was also open standard. The only drawback it suffered was that it was slow. Major software developers v
Hard disk Architecture: A hard disk drive having the platters and motor hub removed indicating the copper colored stator coils surrounding a bearing at the cen
A v o iding Over fitting - Artificial intelligence As we discussed in the last lecture, over fitting is a normal problem in machine learning. Decision trees suffe
How branching takes place in Instruction pipeline. Explain with suitable examples
Q. Show the Importance of RISC Processors? Reduced Instruction Set Computers recognize a comparatively limited number of instructions. One benefit of a reduced instruction set
How can common bus system be constructed A common bus system could be constructed using multiplexers. These multiplexers select source register whose binary information is then
How can you pass a struct by reference in e? The question is phrased in a tricky way because passing by reference is the default and only possible way to pass structs in e. I
Why SRAM are said to be volatile? Because their contents are lost when power is interrupted. So SRAM are said to be volatile.
State about Dynamic modelling and its inputs Dynamic modelling is elaborated further by adding concept of time: new attributes are computed, as a function of the attribute chan
What is application software? Give example. Application programs are usually written in a high level programming language, in which the programmer states mathematical or text p
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