इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न' 5 तरफ” “The Right to Information, The Right to Live” “Step Out From the Old to the New” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru IS 2032-12 (1969): Graphical Symbols Used in Electrotechnology, Part XII: Electro-Acoustic Transducers and Recording and Reproducing Systems [LITD 7: Audio, Video and Multimedia Systems and Equipment] “!ान $ एक न' भारत का +नम-ण” Satyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह” है” ह Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” ( Reaffirmed 2001 ) IS : 2032 ( Part XII ) - 1969 Indian Standard GRAPHICAL SYMBOLS USED IN ELECTROTECHNOLOGY PART XII AND ELECTRa-ACOUSTIC RECORDING AND TRANSDUCERS REPRODUCING SYSTEMS I Electrotechnical Standards Sectional Committee, ETDC 1 Representing Chairman Heavy Elcctricals ( India ) Ltd, Bhopal SHRI S. SWAYAMBU Members ADDITIONAL CHIEF ENGINEER DIRECTOROF TELEGRAPHS( L ) SHRI V. W. CHEMBURKAR Directorate General of Posts & Telegraphs mrnt of Communications ) (It$rnate ) Electrical Calcutta Manufacturers’ ( Depart- Association, SHRI R. M. NANAVATI ( Alternate) Relays Sectional Committee, SHRI K. M. CHINNAPPA SHRI K. A. DAVE SHRI S.-N. VINZE ( Alternate ) SHRI P. N. DEOBHAKTA ETDC 35, ISI Central Water & Power Commission ( Power Wing_, ) Electrical Wiring -Accessories Sectional Committee, ETDC 44, ISI Electronics and Radar Development Establishment DIRECTOR ( Ministry of Defence ), Bangalore Department of Communications ( Wireless Planning SHRI V. M. GOGTE and Co-ordination Wine ‘, Conductors and Cables- ‘Sectional Committee, &IRI K. htATTHAN ETDC 32. IS1 National Test House, Calcutta SHRI S . N. MUKERJI Institution of Engineers ( India ), Calcutta SHRI S. S. MURTHY General Nomenclature and Symbols Subcommittee, PROF R. C. NARAYANAN ETDC 1 : 3, IS1 Transformers Sectional Committee, ETDC 16, ISI SHRI U. K. PATWARDHAN Research Institute Central Electra-chemical SHRI R. RADHAKRISHNAN ( CSIR ), Karaikudi SHRI H. N. VENKOBARAO(Alternate ) Heavy Electricals ( India ) Ltd, Bhopal SHRI K. RAMANATHAN SHRI S. K. BHATIA ( Alternate) Switchgear and Controlgear Sectional Committee, SHRI A. P. SEETHAPATHY ETDC 17, ISI; and Power Frequency and Voltages Subcommittee, ETDC 1 : 1, ISI National Physical Laboratory ( CSIR ), New Delhi SHRI R. K. TANDAN Sectional Committee, Equipment Electronic SHRI S. THIRUVENKATACHARI ETDC 24, IS1 ( Continued on page 2 ) INDIAN MANAK STANDARDS BHAVAN, 9 BAHADUR NEW DELHI INSTITUTION SHAH 1 ZAFAR MARG IS : 2032 ( Part XII ) - 1969 ( Continuedfrom page I ) Mem hers R+resenting DR H. V. K. UDUPA DR B. H. WADIA SHRI J. S. ZAVERI SHRI Y. S. VENKATESWARAN, Director ( Elec tech ) ( Secretut~) Acoustics Secondary Cells and Batteries Sectional Committee, ESTDC 11, IS1 Semic onductor Devices Sectional Committee, F<TDC 40, ISI Rotat ing Machinery Sectional Committee, ETDC 15, ISI Director General, ISI ( Ex-o#cio Member ) Sectional Committee, ETDC 27 Chairman National Physical Laboratory DR M. PANCHOLY ( CSIR), New Delhi Members SHRI I. S. AHUJA SHRI P. K. BASLJ( Alternate ) SHRI G. S. BOLIN~ SHRI S. L. DESAI SHRI S. C. ISRANI SHRI R. K. JAIN ( Alternate SHRI H. JOGA RAO SHRI B. G. KALE LT-COL D. N. SASTRI ) Ahuja Radios, New Delhi G. W. Balkar & Co, Jullundur Posts and Telegraphs Department, New Delhi The Radio Electronics & Television Manufacturer’s Association, Calcutta State Broadcasting Department, Government Andhra Pradesh Railway Board ( Ministry of Railways) Directorate General of Inspection (Ministry Defence ) Alternate ) All India Radio Merchants Association, Bombay of of SHRI P. KRISHNAXJRTHYRAO SHRI J. S. MONGA SHRI V. J. BIIATT ( Alternate ) ( Bombay ) SHRI D. N. CHAUDHURI( Alternate ) ( Calcutta ) SHRI L. S. V. EASWAR ( Alternate ) ( Madras ) National Test House, Calcutta SHRI S. N. MUKERJI SHRI B. P. GH&H ( Alternate) Directorate General of Defence Research & DevelopSHRI M. S. NARAYANAN ment ( Ministry of Defence) Central Electronics Engineering Research Institute SHRI K. D. PAVATE ( CSIR ), Pilani Indian Institute of Science , Bangalore DR B. S. RAMAKRISHNA Directorate General of All India Radio, New Delhi RESEARCHENGINEER Da ( SYT ) C. K. KESAVAN ( Alternate) & Disposals Directorate General of Supplies SHRI M. SANKARAL~NGAM ( Inspection Wing ) Director General, IS1 ( Ex-oficio Member) SHRI Y. S. VENKATESWARAN, Director ( Elec tech ) Secretary SHRIS. MUKHOPADHYAY Asstt Director ( Elec tech), 2 ISI * IS : 2032 ( Part XII ) - 1969 Indian Standard GRAPHICAL SYMBOLS USED IN ELECTROTECHNOLOGY PART XII ELECTRO-ACOUSTIC TRANSDUCERS AND RECORDING AND REPRODUCING SYSTEMS 0. FOREWORD 0.1 This Indian Standard ( Part XII ) was adopted by the Indian Standards Institution on 19 September 1969, after the draft finalized by the Electrotechnical Standards Sectional Committee, in consultation with the Acoustics Sectional Committee, had been approved by the Electrotechnical Division Council. 0.2 This standard ( Part XII ) deals with the graphical symbols for electroacoustic transducers and recording and reproducing systems. 0.3 It is common in electrical and electronic engineering practice to employ graphical symbols to denote the various means and devices used With the object of making these in making diagrams of connections. diagrams easy to understand and universal in meaning, it has become necessary to standardize the basic symbols for various devices. 0.4 In selecting and devising these symbols, the object has been to ensure that the symbols, as far as possible, are self explanatory, easy to draw in general use. 0.5 While preparing this standard, assistance has been issued by the International following documents Commission: derived from the Electrotechnical IEC/TC 3 ( Central Office ) 487 Symbols for microphones, loudspeakers, recording, reproducing and erasing hydrophones. IEC/TC 3 ( Central reproducers. Office ) 518 Block symbols for ear-phones, heads and, recorders and 0.6 This standard is one of a series of Indian Standards for graphical A list of standards so far published in symbols used in electro-technology. this series is given on page 10. I. SCOPE 1.1 This standard . to represent and erasing ( Part XII ) specifies graphical symbols to be employed microphones, ear-phones, loudspeakers, recording, reproducing heads, hydrophones and recording and reproducing systems. 3 IS : 2032 ( Part XII ) - 1969 2. ELECTRO-ACOUSTIC TRANSDUCERS 2.1 General Symbds 2.1 .l Microphone 2.1.2 Microphone, 2.1.3 Ear-phone Push- Pull ( Receiver ) 2.1.4 Loudspeaker 2.2 2.1 .!i Transducer Head, Monophonic 2.1.6 Ultrasonic Transmitter 2.1.7 Hydrophone Qualifying Head Receiver Under consideration Symbols 2.2.0 If it is essential to indicate the different types of microphone, loudspeaker, recording head, etc, the following symbols may be drawn inside or adjacent to the general symbols. 4 IS:2032(PartXII)-1969 2.2.1 Capacitor Type 2.2.2 Piezo-electric 2.2.3 Magneto-striction 2.2.4 Moving Coil or Ribbon 2i2.5 Moving Iron Type 2.2.6 Stereo Type 2.2.7 Light Dependent Type ( Arrows Towar&:the Symbol ), Light Generating and/or Modulating Type ‘( Arrows Away from Symbol ) it- Type Tyje X 2.2.8 Erasing 2.2.9 Low Audio-Frequency 2.2.lO High 3 . . Audio-Frequency I$ 2.2.11 Magnetic Track 3 5 h IS : 2032 ( Part XII ) - 1969 2.3 Examples ( Illustrative ) 2.3.1 Handset 2.3.2 Headgear Receiver, Single 2.3.3 Headset 2.3.4 Loudspeaker-Microphone 2.35 Transducer 2.3.6 Stylus Operated Head, Monophonic Head, Stereophonic Head 6 IS : 2032 ( Part XII) 2.3.7 Stylus Operated Head, 2.3.8 Head for 2.3.8.1 2.3.9 2.3.9.1 2.3.10 Magnetic Stereophonic Track SimpliJiedform Headfor %’ Magnetic Simplijed Tracks form Recording ( Writiq 2.3.11 Reproducing Monophonic 2.3.12 Erasing 2.3.13 Light Sensitiue Monophonic ) Head, Monophonic ( Reading, P&back) Head, Head Reading 2.3.14 Writing Head Producing Light, Monophonic 2.3.15 Head for Magnetic Head, AVIodulated Writing, Reading and Erasing Track, Monophonic 7 - 1969 IS : 2032 ( Part XII ) - 1969 23.16 Writing Head Monophonic 2.3.16.1 2.3.17 Magnetic Track, Simplified form Erasing Headfor 2.3.17.1 for Magnetic Track SimpliJed form 2.3.18 Electrostatic ( Capacitor ) Microphone 2.3.19 Moving Coil Loudspeaker 2.3.20 Piezo-electric Recording or Reproducing Stylus- Operated Head 3. RECORDING 3.1 General 3.1 .l AND REPRODUCING SYSTEMS L Symbols Recorder and/or Reproducer NOTE 1 - If it is desired to give more details of the equipment, the appropriate qualifying symbol shown in 3.2 may be used. NOTE 2 - Recording and/or reproducing can be indicated by means of arrows added to the appropriate side of the square. 8 9.” IS : 2032 ( Part XII ) - 1969 3.2 Qualifying Symbols d cm 3.2.1 Disc 3.2.2 Tape or Film / / N 3.2.3 Drum 8 3.3 Examples 3.3.1 Recorder and Reproducer Using Magnetic Tracks 3.3.2 Reproducer with a Stylus Operated Head 3.3.3 Recorder Using Modulated Light a Head Producing a zt 17 D 3.3.4 Reproducer Using a Light Operated Head 3.3.5 Recorder and Reproducer, Magnetic Drum 7-yPe 3 -k 0 9 11 IS : 2032 ( Part XII ) - 1969 3.3.6 Recorder Film-Type, ing Modulated with a Head Produc- Light 3.3.7 Reproducer, Disc-Type, Operated Head with INDIAN d a El- a Light- 11 STANDARDS ON Graphical Symbols Rs IS: 2032 ( Part I )-1962 Graphical symbols used in electrotechnology: Classification and definitions of diagrams and charts Part I ... 2032 ( Part II )-1962 Graphical symbols used in electrotechnology: Part II Kind of current distribution systems and methods of connection... 2.50 2032 ( Part III )-I962 Graphical symbols used in electrotechnology: Circuit elements and variability ... ... Part III ... I.50 2032 ( Part IV )-1964 Rotating Part IV Graphical symbols used in electrotechnology: machines and transformers ... . .. 2032 ( Part V j-1965 Graphical symbols used Generating stations and substations 2032 ( Part VI )-1965 Graphical Motor starters 2032 (Part symbols . .. in electrotechnolgy: ... ... used in electrotechnology: ... .. . . .. 4.00 Part V ... 1.00 Part VI .,. VII )-I965 Graphical symbols used in electrotechnology:~Part Switchgear and auxiliaries ... ... .,. .. . VII ... 2032 (Part VIII j-1965 Graphical symbols used in electrotechnology: Part VIII Semiconductor devices ... ... ... ... 2032 ( Part IX )-I969 Graphical symbols used in electrotechnology: Part IX Electron tubes and valves ( other than microwave tubes .. . and valves ) . .. . .. . .. . .. 2032 ( Part X )-1969 Graphical symbols used in Measuring instruments ( under print ) electrotechnology: ... ... Part X ... 2032 ( Part XI )-I969 Graphical symbols used in electrotechnology: Part XI Electrical installations in buildings ( architectural diagrams ) ... ..* ... ( underfirint ) ... ... 2032 ( Part XII )-1969 Graphical symbols used in electrotechnology: Part XII Electra-acoustic transducers and recording and reproducing ... ... systems ... ... ... 10 1.00 1.50 TOO 2.50 5.50 - - 3.50 +