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Microprocessor Based Selective Calling Systems
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Microprocessor Based Selective Calling Systems

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Introduction:-
The Microprocessor based selective calling system, designed to meet customized communication requirements in commercial and industrial applications to operate in extreme conditions of industrial, hazardous or marine conditions and there likes.
Incorporates many features, made possible by use of digital technology. The system...
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Product Details

Product Description

Introduction:-

The Microprocessor based selective calling system, designed to meet customized communication requirements in commercial and industrial applications to operate in extreme conditions of industrial, hazardous or marine conditions and there likes.

Incorporates many features, made possible by use of digital technology. The system Comprises of a number of stations, located at strategic points, through the Central Control Unit (CCU) using 6-core cable. This permits number of simultaneous communications, in full duplex mode, dependent upon the no. of groups.

System Features:-


The CCU performs monitoring, and diagnostic function for the system. Digital circuit and software programming on Central Control, provide following features:

Selective Communication:


Communicate with any desired station on selective call basis. Each station has its discreet code number and can be called from any station.

Simultaneous communications:


The CCU architecture permits 8 independent / simultaneous duplex conversations.

Programmable Communication:


The communication chart can be altered, as desired, by programming the exchange; e.g.; barring certain units from making calls to selected numbers. Alert tone, siren tones, and programmable pre recorded messages.

Break in Call:
 

If a selective or direct call is urgent and the called station in busy. The control room has priority "BARGE-IN" facility.

Group Call:


Groups can be programmed in the central control unit. When a station is connected to more than one group, access will be on "First - Come -First-Serve" basis.

Call Queue (optional):

If any station is busy, the calling station can keep the call pending or can "Be- in- queue". While the call is in "Q", it is free to receive incoming calls. Clear voice reproduction with high syllabic articulation, even under adverse acoustic conditions. Dynamic compression of signals from microphone preamplifiers prevents overdrive of amplifiers, resulting in clarity of announcements. fire alarm interface with "evac" message with Modular Card expansion.

System Operation:-


A caller dials the number assigned for the station, if the called station is free, paging channel is activated automatically, and an alert tone precedes the announcement, heard over external loudspeaker of the called station.

The page channel will be active for a prescribed time. If the called party answers the call within this predetermined time, communication automatically shifts to the party line.Up to four stations can be in conference on party channel. The line gets "reset" automatically in case there is no response from the called party.

If two stations are engaged in communication, other stations are free to communicate. Central exchange can be programmed to activate Group calls, all call, Siren and other priority function. The system can be programmed to be interfaced with existing Telephone exchange.

 

 






           



             

             

             



               




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                    Microprocessor Based Selective Calling Systems

                    Company Details


                    About us

                    Year of Establishment1936
                    Legal Status of FirmPrivate limited company
                    Nature of BusinessManufacturer
                    Number of Employees11 to 25 People
                    IndiaMART Member SinceApr 2011

                    The Late Mr. Gianchand Chandulal Motwane founded the company in 1909 in Sind, from the modest beginning of a one-man established catering to the growing Electrical industry, under the name Eastern Electric Trading co. After opening its doors in Bombay on 1st April 1919 it changed focus to dealing in radio, Tel-Com & Loudspeakers under the name Chicago Telephone & Radio Company. Chicago Radio Public Address and Sound System were introduced in India for the first time in 1929 to enable the voice of our leaders to be heard by the masses during the freedom struggle.
                    Chicago Radio System were put to the rest test in 1931, at the momentous congress session at Karachi. Sardar Patel then the President of Congress asked Mr. Nanik Motwane to take personal charge of the loudspeaker arrangements.
                    The session was a huge success and the political leaders, the people and the press were full of praise one newspaper wrote, All Congress leaders who spoke from the rostrum, like Vallabhai Patel and Pandit Jawaharlal Nehru, were happy on the account of the loudspeakers reproducing every word of theirs in a magnificent form very clearly and without distortion". Chicago Radio has ever since established a tradition and reputation for unfailing service. Brought about largely by the high quality of apparatus, ensuring clear and faithful reproduction of voice and sound.Teamed with an alert and efficient service before,during and after installations,these have played a vital role in the nation wide popularity of Chicago Radio loudspeakers. It was in the year 1958 that the company, so recognized for its dedication to clear communication, had amalgamated into Motwane Private Limited.

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