What are the different types of distributing frames, Computer Engineering

Assignment Help:

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.

558_Cable Hierarchy For Subscriber Loops.png

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.


Related Discussions:- What are the different types of distributing frames

Explain non-folded network, Explain Non-Folded network Non-Folded Netw...

Explain Non-Folded network Non-Folded Network: In a switching network, every inlet/outlet connection may be utilized for inter exchange transmission. In this case, the .excha

What is stack pointer, Stack pointer is a particular purpose 16-bit registe...

Stack pointer is a particular purpose 16-bit register in the Microprocessor, which grasp the address of the top of the stack.

ip address and port number at the remote host, How many TCP connections ar...

How many TCP connections are in the "Established" state? Contain relevant output. For one of the established TCP connections, what are the IP address and port number at the remote

Compact disk read only memory, Q. What is Compact Disk Read Only Memory? ...

Q. What is Compact Disk Read Only Memory? This technology has evolved out of entertainment electronics market where cassette tapes and long playing records are being replaced b

Types of addressing modes in assembly language, Types of Addressing Modes: ...

Types of Addressing Modes: Each instruction of a computer mentions an operation on certain data. There are many ways of specifying address of the data to be operated on. These

Perform on occurrence of an interrupt, Q. Perform on occurrence of an inter...

Q. Perform on occurrence of an interrupt? Determining these requirements let's work out steps that CPU should perform on occurrence of an interrupt. The CPU should find

What is edi (electronic data interchange), What is EDI (Electronic Data Int...

What is EDI (Electronic Data Interchange)? EDI: Electronic Data Interchange (EDI) is used by organizations for transactions that happen on regular basis to a pre-determined for

Distinguish between combinational & sequential logic circuit, Distinguish b...

Distinguish between combinational logic circuits and sequential logic circuits. Ans: Combinational logic circuits:- (i) Outputs only depend upon present state of the i

Define organizing, Q. Define Organizing? Grouping of related activities...

Q. Define Organizing? Grouping of related activities together, Identification of required activities and forming departments and coordinating various departments with the estab

What is managed code and managed data, What is managed code and managed dat...

What is managed code and managed data? Managed code is code that is written to target the services of the Common Language Runtime. In order to target these services, the code m

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