EPABX is an abbreviation that stands for Electronic Private Automatic Branch Exchange. It comes under the category of business phone systems which serve a . circuit of Electronic Private Automatic Telephone Exchange (EPABX) on To study Theory of EPBX Systems. 3. To study Block diagram and Working principle. VoIP PBX is the IP branch exchange suitable for systems with 60– subscribers and for Block diagram of interconnection of the exchange with environment.

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After processing the output is returned back to storage unit for further processing or getting stored.

They are 1 arithmetic logical ssystem 2 control unit. External Telephone Connection 4. Similarly the output produced by the computer after processing must also be kept somewhere inside the computer before being given to you in human readable form.

What is the use of epabx? Please elabx the related link below for an image of the block diagram of the DX2. The matrix checks for which port the no. The Central Processing Unit CPU takes data and instructions from the storage unit and makes all sorts of calculations based on the instructions given and the type of data provided. Would you like to make it the primary rpabx merge this question into it?

Thereby it coordinates the activities of computer’s peripheral equipment as they perform the input and output. The control unit determines the sequence in which computer programs and instructions are executed. Again the epax is also stored inside the computer for further processing. A telephone exchange serving a single organization, having a switchboard and associated epax, usually located on the customer’s premises; provides for switching calls bet … ween any two extensions served by the exchange or between any extension and the national telephone system via a trunk to a central office.


Things like processing of programs stored in the main memory, interpretation of the instructions and issuing of signals for other units of the computer to execute them. This is the process of entering data and programs in to the computer system. The major operations performed by the ALU are addition, subtraction, multiplication, division, logic and comparison.

Controlling of all operations like input, processing and output are performed by control unit. The computer system is divided systek three separate units for its operation.

After you enter data through the input device it is stored in the primary storage unit. AM transmitter block diagram? A computer as shown in Fig.

The first part 1 deals with the epwbx system i. It also acts as a switch board operator when several users access the computer simultaneously. A computer can process data, pictures, sound and graphics. Merge this question into.

PBX | Editable Network Diagram Template on Creately

Therefore, the input unit takes data from us to the computer in an organized manner for processing. The task of performing operations like arithmetic and logical operations is called processing. The general term “Extension” is used to refer to any end point on the branch. EPABX is used for the internally incoming and outgoing of telephonic calls. You may call CPU as the brain of any computer system.

For the source and more detailed information concerning your request, click on the related links section Answers. Hope you got some idea. It converts the signalling as well the voice into digital and handovers to the matrix. The manner how instructions are executed and the above operations are performed. Block diagram of CDMA?


It is just like brain that takes all major decisions, makes all sorts of calculations systtem directs different parts of the computer functions by activating and controlling the operations. Control Unit is responsible for co ordinating various doagram using time signal.

What is meaning of epabx? If we have two telephone line it can be divided into eight lines and the incoming and outgoing calls … can be done from these eight no. Data is transferred to ALU from eabx unit when required. The storage unit performs the following major functions: They are essentially crosspoint switches with touch-tone decoders. You should know that computer is an electronic machine like any other machine which takes as inputs raw data and performs some processing giving out processed data.

Therefore the data is first stored in the storage unit for faster access and processing.

PBX ( Network Diagram)

The actual processing of the data and instruction are performed by Arithmetic Logical Unit. Choose a video to embed. The process of saving data and instructions permanently is known as storage. This storage unit or the primary storage of the computer system is designed to do the above functionality.

Split and merge into it. These are 1 it accepts data or instructions by way of input, 2 it stores data, 3 bloock can process data as required by the user, 4 it gives results in the form of output, and 5 it controls all operations inside a computer.