60617-10_1996

BRITISH STANDARD BS EN 60617-10:1996IEC 617-10: 1996

Graphical symbols for diagrams

Part 10: Telecommunications: transmission

The European Standard EN 60617-10:1996 has the status of a British Standard

ICS 01.080.30; 33.040.20

BS EN 60617-10:1996

This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on15 December 1996

BSI 10-1998

The following BSI references relate to the work on this standard:Committee reference GEL/3Draft for comment 92/28843 DC

ISBN 0 580 26764 4

Committees responsible for this British Standard

The preparation of this British Standard was entrusted to Technical Committee GEL/3, Documentation and graphical symbols, upon which the following bodies were represented:

British Photographic AssociationConsumer Policy Committee of BSIFederation of the Electronics IndustryGAMBICA (BEAMA Ltd.)Transmission and Distribution Association (BEAMA Ltd.)

Amendments issued since publication

Amd. No. Date Comments

BS EN 60617-10:1996

BSI 10-1998 i

Contents

PageCommittees responsible Inside front coverNational foreword ii

Foreword 2Text of EN 60617-10:1996 3

BS EN 60617-10:1996

ii BSI 10-1998

National foreword

This British Standard has been prepared by Technical Committee GEL/3. It is the English language version of EN 60617-10:1996, Graphical symbols for diagrams Part 10: Telecommunications: Transmission, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 617-10:1996 published by the International Electrotechnical Commission (IEC).This British Standard replaces BS 3939-10:1985 which is withdrawn.NOTE The French language version of the alphabetic index has not been included.

A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pagesThis document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 61 and a back cover.This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.

EUROPEAN STANDARD

NORME EUROPENNE

EUROPISCHE NORM

EN 60617-10

June 1996

ICS 01.080.30

Descriptors: Electric diagram, electrical symbol, telecommunication, data transmission

English version

Graphical symbols for diagrams Part 10: Telecommunications: Transmission

(IEC 617-10:1996)

Symboles graphiques pour schmas Partie 10: Tlcommunications: Transmission (CEI 617-10:1996)

Graphische Symbole fr Schaltplne Teil 10: Schaltzeichen fr die Nachrichtentechnik: bertragungseinrichtungen (IEC 617-10:1996)

This European Standard was approved by CENELEC on 1996-03-05.CENELEC members are bound to comply with the CEN/CENELEC InternalRegulations which stipulate the conditions for giving this European Standardthe status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to anyCENELEC member.This European Standard exists in three official versions (English, French,German). A version in any other language made by translation under theresponsibility of a CENELEC member into its own language and notified to theCentral Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria,Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland andUnited Kingdom.

CENELECEuropean Committee for Electrotechnical Standardization

Comit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B-1050 Brussels

1996 copyright reserved to CENELEC membersRef. No. EN 60617-10:1996 E

EN 60617-10:1996

2 BSI 10-1998

Foreword

The text of document 3A/388/FDIS, future edition 2 of IEC 617-10, prepared by SC 3A, Graphical symbols for diagrams, of IEC TC 3, Documentation and graphical symbols, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60617-10 on 1996-03-05.The following dates were fixed:

Contents

PageIntroduction 3Chapter I: Telecommunication circuitsSection 1 Lines and circuit usage 4Section 2 Amplified circuits 5Chapter II: Antennas and radio stationsSection 3 Qualifying symbols 6Section 4 General symbol and examples of use 7Section 5 Specific types of antennas andparts of antennas 9Section 6 Radio stations 11Chapter III: Microwave technologySection 7 Transmission paths 14Section 8 One- and two-port devices 16Section 9 Multi-port devices 21Section 10 Couplers and probes 24Section 11 Masers and lasers 26Chapter IV: Miscellaneous block symbolsSection 12 Qualifying symbols for thetypes of pulse-modulation 28Section 13 Signal generators 29Section 14 Converters 30Section 15 Amplifiers 31Section 16 Networks with several pairs of terminals 32Section 17 Limiters 36Section 18 Terminating sets and hybrid transformers 38Section 19 Modulators, demodulators, discriminators 39Section 20 Concentrators, multiplexers 41Chapter V: Frequency spectrum diagramsSection 21 Symbol elements 43Section 22 Examples of frequencyspectrum diagrams 46Chapter VI: Fibre opticsSection 23 Transmission line 49Section 24 Transmission devices 51Annex A (informative) Older symbols 54Annex B (informative) English alphabeticindex 55

latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1997-02-01

latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 1997-02-01

EN 60617-10:1996

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IntroductionThis part of IEC 617 forms an element of a series which deals with graphical symbols for diagrams.The series consists of the following parts:

Part 1: General information, general index. Cross-reference tables; Part 2: Symbol elements, qualifying symbols and other symbols having general application; Part 3: Conductors and connecting devices; Part 4: Basic passive components; Part 5: Semiconductors and electron tubes; Part 6: Production and conversion of electrical energy; Part 7: Switchgear, controlgear and protective devices; Part 8: Measuring instruments, lamps and signalling devices; Part 9: Telecommunications: Switching and peripheral equipment; Part 10: Telecommunications: Transmission; Part 11: Architectural and topographical installation plans and diagrams; Part 12: Binary logic element; Part 13: Analogue elements.

The scope and the normative references for this series are given in IEC 617-1.Symbols have been designed in accordance with requirements given in the future ISO 11714-11). The module size M = 2,5 mm has been used. For better readability smaller symbols in this standard have been enlarged to double size and are marked 200 % in the symbol column. To save space larger symbols have been reduced to half size and are marked 50 % in the symbol column. In accordance with the future ISO 11714-1, clause 7, symbol dimensions (for instance height) may be modified in order to make space for a greater number of terminals or for other layout requirements. In all cases, whether the size is enlarged or reduced, or dimensions modified, the thickness of the original line should, be maintained without scaling.

The symbols in this standard are laid out in such a way that the distance between connecting lines is a multiple of a certain module. The module 2M has been chosen to provide enough space for a required terminal designation. The symbols have been drawn to a size convenient for comprehension, using the same grid consistently in the representation of all symbols.All symbols are designed within a grid in a computer-aided draughting system. The grid which was used has been reproduced in the background of the symbols.The older symbols which were included in appendix A of the first edition of IEC 617-10 for a transitional period, are no longer part of this second edition, as they will definitely be withdrawn from use.The indexes in Annex A, B and C include an alphabetic list of symbol names and their corresponding number. The symbol names are based on the description of the symbols of this part. A general index including an alphabetic list of symbols of all parts is given in IEC 617-1.

1) At present, at the stage of Draft International Standard (document 3/563/DIS).

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Chapitre I: Circuits de tlcommunication Chapter I: Telecommunication circuits

Section 1 Lignes et affectation de circuits Section 1 Lines and circuit usage1.1 Le symbole 03-01-01 est utilis pour reprsenter une ligne ou un autre circuit

de tlcommunication. Laffectation dun circuit peut tre prcise en utilisant des lettres, symboles 10-01-01 10-01-04.

1.1 Symbol 03-01-01 is used to represent a line or other telecommunication circuit. The usage of circuits may be indicated by letters, symbols 10-01-01 to 10-01-04.

No. Symbole Symbol Lgende Description

10-01-01 Tlphonie Telephony

10-01-02 Tlgraphie et transmission de donnes Telegraphy and transmission of data

10-01-03 Canal vido (tlvision) Video channel (television)

10-01-04 Canal son (tlvision ou radiodiffusion) Sound channel (television or radio broadcasting)

10-01-05 EXEMPLES:Ligne ou circuit tlphonique

Un trait tiret peut tre dessin pour distinguer une liaison radiolectrique dune liaison de tlcommunication.

Le symbole dantenne (10-04-01) peut tre dessin chaque extrmit du symbole de la liaison radiolectrique.

EXAMPLES:

Telephone line or circuit

A dashed line may be used to identify a radio link or any radio section of a circuit.

The antenna symbol (10-04-01) may be placed at the radio terminal points.

10-01-06 Liaison radiolectrique utilise pour la tlvision (vido et son) et pour la tlphonie

Radio link carrying television (video and sound) and telephony

10-01-07 Ligne pupinise Coil-loaded lineInductively loaded line

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Section 2 Circuits amplifis Section 2 Amplified circuits


10-02-01 Circuit deux fils avec amplification dans un seul sens

Two-wire line with unidirectional amplification

10-02-02 Circuit deux fils avec amplification dans les deux sens

Two-wire line with both-way amplification

10-02-03 Forme 1Form 1

Circuit quatre fils avec amplification dans les deux sens

Four-wire circuit with both-way amplification


10-02-05 Circuit assimil un circuit quatre fils partage de frquences

Four-wire type circuit with frequency separation


Circuit quatre fils avec amplification terminale dans les deux sens et suppression dcho

Four-wire circuit with both-way terminals amplification with echo suppression


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Chapitre II: Antennes et stations ou postes radiolectriques

Chapter II: Antennas and radio stations

Section 3 Symboles distinctifs Section 3 Qualifying symbols


10-03-01 Polarisation dans un plan

Pour indiquer la polarisation horizontale (verticale) une flche doit tre trace perpendiculairement (paralllement) la ligne centrale du symbole dantenne.

Plane polarization

Horizontal (vertical) polarization shall be indicated by an arrow shown perpendicular (parallel) to the stem of the antenna symbol.

10-03-02 Polarisation circulaire Circular polarization

10-03-03 Direction de rayonnement fixe en azimut Direction of radiation fixed in azimuth

10-03-04 Direction de rayonnement orientable en azimuth Direction of radiation variable in azimuth

10-03-05 Direction de rayonnement fixe en site Direction of radiation fixed in elevation

10-03-06 Direction de rayonnement orientable en site Direction of radiation variable in elevation

10-03-07 Direction de rayonnement fixe en azimut et en site Direction of radiation fixed in azimuth and elevation

10-03-08 Radiogoniomtre ou radiophare Direction finder or radio beacon

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Section 4 Symbole gnral et exemples demploi

Section 4 General symbol and examples of use


10-04-01 Antenne, symbole gnral

Ce symbole peut tre utilis pour reprsenter une antenne directive ou non. La ligne centrale du symbole peut reprsenter un type quelconque dalimentation, symtrique ou asymtrique, y compris un conducteur unique.

On peut indiquer sur un diagramme distinct, voisin du symbole de lantenne, le lobe principal du diagramme de directivit de lantenne.

On peut ajouter des indications supplmentaires (lettres et chiffres) tires du Rglement des radiocommunications en vigueur, publi par lUnion Internationale des Tlcommunications (UIT), Genve. On peut ajouter un nom ou une rfrence au symbole gnral de lantenne.

Antenna, general symbol

This symbol may be used to represent any type of antenna or aerial array. The stem of the symbol may represent any type of balanced or unbalanced feeder, including a single conductor.

A drawing of the general shapes of the main lobes of the polar diagrams of the antenna may be given adjacent to the antenna symbol.

Supplementary references in figures or letter symbols may be taken from the current Radio Regulations published by the International Telecommunication Union (ITU), Geneva. Alternatively a name or a reference may be written adjacent to the general antenna symbol.

10-04-02 Antenne avec polarisation circulaire Antenna with circular polarization

10-04-03 Antenne direction de rayonnement orientable en azimut

Antenna with direction of radiation variable in azimuth

10-04-04 Antenne direction de rayonnement fixe en azimut, polarisation horizontale

Directional antenna fixed in azimuth, horizontal polarization

10-04-05 Antenne direction de rayonnement orientable en site

Antenna with direction of radiation variable in elevation

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10-04-06 Antenne radiogoniomtrique ou de radiophare Direction finding antenna (radio goniometric or radio beacon)

10-04-07 Antenne direction de rayonnement fixe en azimut, polarisation verticale avec son diagramme de rayonnement dans le plan horizontal

Directional antenna fixed in azimuth, vertically polarized, with horizontal polar diagram

10-04-08 Antenne radar tournant dans un sens en azimut la vitesse de quatre tours par minute et oscillante en site entre 0 ... 57 ... 0 en 1 s

Radar antenna rotating four times per minute in azimuth and reciprocating in elevationbetween 0 ... 57 ... 0 in 1 s

10-04-09 Antenne tourniquet Turnstile antenna


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Section 5 Antennes particulires et lments dantennes

Section 5 Specific types of antennas and parts of antennas


10-05-01 Cadre Loop (or frame) antenna

10-05-02 Antenne en losange, figure termine par une rsistance

Rhombic antenna, shown terminated by a resistor

10-05-03 Contrepoids Counterpoise

10-05-04 Antenne noyau magntique, par exemple de ferrite

Sil ny a pas de risque de confusion, on peut supprimer le symbole gnral dantenne.

Magnetic rod antenna, for example ferrite

If there is no risk of confusion, the general antenna symbol may be omitted.

10-05-05 Doublet Dipole

10-05-06 Doublet repli Folded dipole

10-05-07 Doublet repli, figur avec trois lments directeurs et un lment rflecteur

Folded dipole, shown with three directors and one reflector

10-05-08 Symtriseur Balun (Balancing unit)

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10-05-09 Doublet repli, figur avec un symtriseur et une paire coaxiale

Folded dipole, shown with balun and coaxial feeder

10-05-10 Antenne fentes, figure avec alimentation par un guide dondes de section rectangulaire

Slot antenna, shown with rectangular waveguide feeder

10-05-11 Cornet Horn antennaHorn feed

10-05-12 Rflecteur en D aliment par un cornet, figur avec un guide dondes de section rectangulaire

Cheese (box) reflector with horn feed, shown with rectangular waveguide feeder

10-05-13 Antenne parabolique, figure alimente par un guide dondes de section rectangulaire

Parabolic antenna, shown with rectangular waveguide feeder

10-05-14 Cornet rflecteur, figur aliment par un guide dondes de section circulaire

Horn-reflector antenna, shown with circular waveguide feeder


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Section 6 Stations ou postes radiolectriques

Section 6 Radio stations


10-06-01 Station ou poste radiolectrique, symbole gnral

Le symbole 02-05-04 ou 02-05-05 est utilis pour indiquer une station mettrice ou rceptrice. Pour des exemples dapplication, voir les symboles 10-06-02 10-06-05.

Radio station, general symbol

Symbol 02-05-04 or 02-05-05 is used to indicate a transmitting or receiving radio station.For examples of use, see symbols 10-06-02 to 10-06-05.

10-06-02 Poste metteur et rcepteur (mission et rception simultanes sur la mme antenne)

Transmitting and receiving radio station (simultaneous transmission and reception on the same antenna)

10-06-03 Poste radiogoniomtrique rcepteur Direction finding radio receiving station

10-06-04 Poste radiogoniomtrique metteur Radio beacon transmitting station

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10-06-05 Poste radiolectrique portatif (mission et rception alternes sur la mme antenne)

Portable radio station(alternate transmission and reception on the same antenna)

10-06-06 Station radiolectrique de baseStation radiolectrique matresse

Controlling radio station

10-06-07 Station radiolectrique mobile(mission et rception alternes sur la mme antenne)

Mobile radio station (alternate transmission and reception on the same antenna)

10-06-08 Station-relais passive, symbole gnral Passive relay station, general symbol

10-06-09 Station spatiale, symbole gnral Space station, general symbol

10-06-10 Station spatiale active Active space station


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10-06-11 Station spatiale passive Passive space station

10-06-12 Station terrienne seulement pour le radioreprage dune station spatiale, exemple figur avec une antenne parabolique

Earth station only for space station tracking, example shown with a parabolic antenna

10-06-13 Station terrienne dun service de tlcommunication par station spatiale

Earth station for communication with a space station


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Chapitre III: Techniques des hyperfrquences Chapter III: Microwave technologySection 7 Lignes de propagation Section 7 Transmission paths

7.1 Le symbole 03-01-01 est utilis pour reprsenter une ligne de propagation. Des symboles distinctifs peuvent tre dessins au dbut et la fin de chaque ligne de propagation et en des points intermdiaires. Le mode de propagation peut tre indiqu ct du symbole du guide dondes. Des indications prcisant les structures mcaniques (par exemple angle de coude), les types, les impdances ainsi que des donnes particulires peuvent tre ajoutes proximit ou lintrieur dun symbole ou dans une note.

7.1 Symbol 03-01-01 is used to represent a transmission path. Qualifying symbols may be added at both ends of the transmission path and at intermediate points. The mode of propagation may be shown at the side of the waveguide symbol. Details of structure (for example elbows), type, impedance, ratings, etc., may be added adjacent to or within any symbol or in a note.


10-07-01 Guide dondes de section rectangulaire Rectangular waveguide

10-07-02 EXEMPLE:Guide dondes de section rectangulaire avec propagation du mode TE01

EXAMPLE:Rectangular waveguide with propagation in the TE01 mode

10-07-03 Guide dondes de section circulaire Circular waveguide

10-07-04 Guide dondes moulure Ridged waveguide

10-07-05 Guide dondes coaxial Coaxial waveguide

10-07-06 Ligne rubans deux conducteurs Stripline with two conductors

10-07-07 Ligne rubans trois conducteurs Stripline with three conductors

10-07-08 Ligne Goubau (ligne de propagation un seul conducteur sous dilectrique solide)

Goubau line (single wire transmission line within solid dielectric)

10-07-09 Guide dondes de section rectangulaire contenant un gaz

Gas-filled rectangular waveguide

10-07-10 Guide dondes flexible Flexible waveguide

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10-07-11 Guide dondes en torsade Twisted waveguide

10-07-12 Suppression dun mode de propagation

Lastrisque doit tre remplac par lindication du mode de propagation qui est supprim.

Mode suppression

The asterisk shall be replaced by the indication of the propagation mode suppression.

10-07-13 Paire de connecteurs symtriques pour guide dondes Pair of symmetrical waveguide connectors

10-07-14 Paire de connecteurs asymtriques pour guide dondes

Le trait nest pas interrompu travers la jonction, quel que soit le type daccouplement.

Pair of asymmetric waveguide connectors

This line is not interrupted at the junction regardless of the type of connector.

10-07-15 Joint tournant avec connecteurs symtriques Rotatable joint, with symmetrical connectors

10-07-16 Rsonateur, symbole distinctif Resonator, qualifying symbol

10-07-17 Rflecteur rflexion totale, symbole distinctif Reflector, reflecting totally, qualifying symbol

10-07-18 Rflecteur rflexion partielle, symbole distinctif Reflector, reflecting partially, qualifying symbol


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Section 8 Dispositifs un et deux accs Section 8 One- and two-port devices


10-08-01 Discontinuit deux accs (introduisant une rflexion dondes voulue), symbole gnral

Discontinuity, two-port (introducing international wave reflection), general symbol

10-08-02 Discontinuit variable ou dispositif dadaptation Variable discontinuity or matching device Adjustable discontinuity or matching device

10-08-03 Dispositif daccord vis mobile Slide screw tuner

10-08-04 Dispositif daccord E-H E-H tuner

10-08-05 Dispositif daccord bras multiple, figur avec trois bras

Multi-stub tuner, shown with three stubs

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10-08-06 Discontinuit en parallle sur la ligne de propagation

Y peut tre remplac par le symbole appropri de circuit constantes localises. Comme exemples dapplication, voir lessymboles 10-08-08 10-08-09.

Discontinuity in shunt with transmission path

Y may be replaced by the appropriate lumped circuit symbol. For example of application,see symbols 10-08-08 to 10-08-09.

10-08-07 Discontinuit en srie sur la ligne de propagation

Z peut tre remplac par le symbole appropri de circuit constantes localises. Comme exemple dapplication, voir le symbole 10-08-10.

Discontinuity in series with transmission path

Z may be replaced by the appropriate lumped circuit symbol. For example of application,see symbol 10-08-10.

10-08-08 EXEMPLES:

Discontinuit capacitive en parallle sur la ligne de propagation

EXAMPLES:

Discontinuity, capacitive, in shunt with the transmission path

10-08-09 Discontinuit rsonnante srie, en parallle sur la ligne de propagation

Discontinuity, series resonant, in shunt with the transmission path

10-08-10 Discontinuit rsonnante, parallle, en srie sur la ligne de propagation

Discontinuity, parallel resonant, in series with the transmission path

10-08-11 Discontinuit terminale Terminal discontinuity


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10-08-12 Frame prfrePreferred form

Affaiblisseur Attenuator

10-08-13 Autre formeOther form

10-08-14 Transition, symbole gnral

Des indications complmentaires peuvent tre ajoutes pour prciser le type de transition.

Transition, general symbol

Appropriate indications may be added to specify the type of transition.

10-08-15 EXEMPLES:

Transition entre un guide dondes de section circulaire et un guide dondes de section rectangulaire

EXAMPLES:

Transition from circular to rectangular waveguide

10-08-16 Transition progression continue entre un guide dondes de section circulaire et un guide dondes de section rectangulaire

Taper transition from circular to rectangular waveguide

10-08-17 Cavit rsonnante Cavity resonator

10-08-18 Filtre passe-bande command par dcharge dans un gaz

Band-pass filter switched by gas discharge


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10-08-19 Filtre de mode

Lastrisque doit tre remplac par lindication du mode de propagation qui est supprim

Mode filter

The asterisk shall be replaced by the indication of the propagation mode suppressed

10-08-20 Isolateur (pour hyperfrquences) Isolator (for microwaves)

10-08-21 Changeur de phase directionnel

La lettre peut tre remplace par B.

La flche la plus longue indique la direction de la propagation dans laquelle se produit le changement de phase intentionnel.

Directional phase changer

may be replaced by B.

The longer arrow indicates the direction of propagation in which the required phase change occurs.

10-08-22 Gyrateur Gyrator

10-08-23 Court-circuiteur (le point est facultatif) Short circuit (the dot is optional)

10-08-24 Piston court-circuiteur Sliding short circuit


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10-08-25 Forme prfrePreferred form

Terminaison dissipative adapte Matched termination

10-08-26 supprimdeleted

Transfer Annexe A: 10-A1-01 Transferred to Annex A: 10-A1-01

10-08-27 Dispositif onde acoustique de surface,(OAS) diple, reprsent avec rflecteurs

One-port surface-acoustic-wave (SAW) device, shown with reflectors

10-08-28 Dispositif onde acoustique de surface,(OAS) quadriple, reprsent avec deux rflecteurs rflexion totale

Two-port surface-acoustic-wave (SAW) device, shown with two reflectors, reflecting totally

10-08-29 Dispositif onde acoustique de surface,(OAS) quadriple, reprsent avec deux rflecteurs rflexion totale et un autre rflexion partielle.

Two-port surface-acoustic-wave (SAW) device, shown with two reflectors, reflecting totally, and another one reflecting partially

10-08-30 Dispositif onde acoustique de surface (OAS), deux portes

Two-port surface acoustic wave (SAW) device


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Section 9 Dispositifs plusieurs accs Section 9 Multi-port devices


10-09-01 Jonction trois accs

Le type de couplage, les proportions de division des puissances, les coefficients de rflexion, etc., peuvent tre indiqus comme figur ci-dessous.

Les angles entre les branches peuvent tre choisis selon besoin.

Three-port junction

The type of coupling, power division proportions, reflection coefficients, etc., may be indicated as shown below.

The angles between the ports may be drawn as convenient.

10-09-02 EXEMPLES:

Jonction en T, type srie

EXAMPLES:

Series T, E-plane T

10-09-03 Jonction en T, type shunt Shunt T, H-plane T

10-09-04 Rpartiteur de puissance:Division de la puissance selon le rapport de 6 : 4

Power divider:Power divided in ratio 6 : 4


Jonction quatre accs Four-port junction


Par convention la puissance, lentre dun accs, nest transmise quaux accs directement adjacents par lesquels elle quitte le dispositif.

(Suite au verso)

The convention is that the power entering at one port is conveyed only to the two directly connected ports and thence away from the device.

(Continued overleaf)

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10-09-07 Exemples de la forme 1:

Jonction double en T du type hybride

Examples of form 1:

Magic T hybrid junction

10-09-08 Forme simplifeSimplified form

10-09-09 Exemples de la forme 2:

Coupleur directif

Premire valeur: affaiblissement de couplage. Deuxime valeur: directivit.

Examples of form 2:

Directional coupler First value: coupling loss.Second value: directivity.

10-09-10 Jonction en quadrature du type hybride Quadrature hybrid junction

10-09-11 Jonction circulaire du type hybride Hybrid ring junction

10-09-12 Circulateur trois accs Circulator, three-port


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10-09-13 Circulateur quatre accs Circulator, four-port

10-09-14 Circulateur quatre accs figur avec direction de circulation rversible

Un courant pntrant dans lenroulement par lextrmit ponctue provoque une circulation dnergie dans la direction de la flche marque dun point

Circulator, four-port, shown with reversible direction of circulation

Current entering the coil at the end marked with the dot causes the energy in the circulator to flow in the direction of the arrowhead marked with a dot

10-09-15 Rotateur polarisation de champ, figur pour 45

La flche indique le sens de rotation du champ lectrique vu dans la direction de transmission du signal

Field-polarization rotator, shown for 45

The arrow indicates the direction of rotation of electric field when viewed in the direction of signal flow

10-09-16 Commutateur pour hyperfrquences deuxpositions (90 de pas)

Two-position microwave switch (90 step)

10-09-17 Commutateur pour hyperfrquences trois positions (120 de pas)

Three-position microwave switch (120 step)

10-09-18 Commutateur pour hyperfrquences quatre positions (45 de pas)

Four-position microwave switch (45 step)


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Section 10 Couplages et sondes Section 10 Couplers and probes


10-10-01 Couplage de type non prcis, symbole gnral Coupler (or feed) type unspecified, general symbol

10-10-02 EXEMPLES:Couplage une cavit rsonnante

EXAMPLES:

Coupler to a cavity resonator

10-10-03 Couplage un guide dondes de section rectangulaire Coupler to a rectangular waveguide

10-10-04 Fentre de couplage, symbole gnral Window (aperture) coupler, general symbol

10-10-05 EXEMPLES:

Fentre de couplage en un point de drivation

EXAMPLES:

Windows (aperture) coupler at a junction

10-10-06 Fentre de couplage E E-plane window (aperture) coupler

10-10-07 Boucle de couplage Loop coupler

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10-10-08 Sonde de couplage Probe coupler

10-10-09 Sonde glissante couple une ligne de propagation Sliding probe coupled to a transmission path


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Section 11 Masers et lasers Section 11 Masers and lasers


10-11-01 Maser, symbole gnral

Le symbole reprsente la transition dun niveau dnergie un niveau infrieur. II est plac de prfrence dans le quadrant infrieur gauche du carr.Le pompage au moyen de lumire peut tre indiqu en plaant le symbole 02-09-01 au-dessus du symbole appropri de la CEI 617-2, Section 7.Comme exemple dapplication, voir le symbole 10-11-05.

Maser, general symbol

The symbol represents the transition from one energy level to a lower one. It should be drawn in the lowerleft-hand corner of the square.

Pumping by light may be shown by placing symbol 02-09-01 above the appropriate symbol ofIEC 617-2, Section 7.

For an example of application, see symbol 10-11-05.

10-11-02 EXEMPLE:

Maser utilis comme amplificateur

EXAMPLE:

Maser used as an amplifier

10-11-03 Laser (maser optique), symbole gnral

Les rgles du symbole 10-11-01 sont applicables.

Laser (optical maser), general symbol

The rules with symbol 10-11-01 apply.

10-11-04 EXEMPLES:

Laser utilis comme gnrateur

EXAMPLES:

Laser used as a generator

(Suite au verso) (Continued overleaf)

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10-11-05 Gnrateur laser cristal de rubis Ruby laser generator

10-11-06 Gnrateur laser cristal de rubis,figur avec une lampe xnon utilise comme moyen de pompage

Ruby laser generator,shown with xenon lamp as pumping source


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Chapitre IV: Symboles fonctionnels divers Chapter IV: Miscellaneous block symbols

Section 12 Symboles distinctifs indiquant le caractre de la modulation dimpulsions

Section 12 Qualifying symbols for the types of pulse-modulation


10-12-01 Modulation dimpulsions en position Pulse-position or pulse-phase modulation

10-12-02 Modulation dimpulsions en frquence Pulse-frequency modulation

10-12-03 Modulation dimpulsions en amplitude Pulse-amplitude modulation

10-12-04 Modulation dimpulsions en espacement Pulse-interval modulation

10-12-05 Modulation dimpulsions en dure Pulse-duration modulation

10-12-06 Modulation par codage dimpulsions

Lastrisque doit tre remplac par lindication du code.

Pulse-code modulation

The asterisk shall be replaced by details of the code.

10-12-07 EXEMPLE:

Code de 3 parmi 7

EXAMPLE:

3-out-of-7 code

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Section 13 Gnrateurs de signal Section 13 Signal generators


10-13-01 Gnrateur de signal, symbole gnral Gnrateur de forme donde, symbole gnral

Signal generator, general symbolWaveform generator, general symbol

10-13-02 Gnrateur dune onde sinusodale, 500 Hz Sine-wave generator, 500 Hz

10-13-03 Gnrateur dune onde en dents de scie, 500 Hz Saw-tooth generator, 500 Hz

10-13-04 Gnrateur dimpulsions Pulse generator

10-13-05 Gnrateur dondes sinusodales frquence ajustable

Sine-wave generator with adjustable frequency

10-13-06 Gnrateur de bruit

k = constante de BoltzmannT = temprature absolue

Noise generator

k = Boltzmanns constantT = absolute temperature

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Section 14 Convertisseurs Section 14 Converters


10-14-01 Convertisseur, symbole gnral Converter, general symbol

10-14-02 Convertisseur de frquence f1 en frquence f2Les f1 et f2 peuvent tre remplacs par indication des frquences dentre et de sortie.

Frequency converter, changing from f1 and f2The f1 and f2 may be replaced by indications of the input and output frequencies.

10-14-03 Multiplicateur de frquence

Le f et le nf peuvent tre remplacs par indication des frquences dentre et de sortie.

Frequency converter, multiplier

The f and nf may be replaced by indications of the input and output frequencies.

10-14-04 Diviseur de frquence

Le f et le f/n peuvent tre remplacs par indication des frquences dentre et de sortie.

Frequency divider

The f and f/n may be replaced by indications of the input and output frequencies.

10-14-05 Inverseur dimpulsions Pulse inverter

10-14-06 Transcodeur, convertisseur de code binaire cinq moments en un code binaire sept moments

Code converter, five-unit binary code to seven-unit binary code

10-14-07 Convertisseur dune indication horaire en code binaire cinq moments

Converter giving clock-time indication in five-digit binary code

10-14-08 Rgnrateur dimpulsions Pulse regenerator

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Section 15 Amplificateurs Section 15 Amplifiers



Amplificateur, symbole gnral Rpteur, symbole gnral

Le triangle est dirig dans le sens de transmission.

Amplifier, general symbolRepeater, general symbol

The triangle is pointed in the direction of transmission.


10-15-03 Amplificateur avec ajustabilit externe

Leagrandeur rgler peut tre indique ct de la tte de la flche.

Amplifier with external adjustability

The quantity to be adjusted may be indicated beside the arrowhead.

10-15-04 Amplificateur dans les deux sens, impdance ngative

Negative impedance both-way amplifier

10-15-05 Amplificateur avec passage driv des courants, de signalisation ou dalimentation

Amplifier with by-pass used for signalling and/or power feeding

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Section 16 Appareils de rseaux plusieurs paires de bornes

Section 16 Networks with several pairs of terminals


10-16-01 Affaiblisseur, affaiblissement fixe Attenuator, fixed loss

10-16-02 Affaiblisseur, affaiblissement rglable Attenuator, variable loss

10-16-03 Filtre Filter

10-16-04 Filtre passe-haut High-pass filter

10-16-05 Filtre passe-bas Low-pass filter

10-16-06 Filtre passe-bande Band-pass filter

10-16-07 Filtre limination de bande Band-stop filter

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10-16-08 Dispositif de praccentuation des frquences leves Device for pre-emphasis of higher frequencies

10-16-09 Dispositif de dsaccentuation des frquences leves Device for de-emphasis of higher frequencies

10-16-10 Compresseur Compressor

10-16-11 Expanseur Expander

10-16-12 Ligne artificielle Artificial line

10-16-13 Changeur de phaseDphaseur

Sil ny a pas de risque de confusion, le peut tre remplac par B.

Phase-changing network

The may be replaced by B if no confusion arises.

10-16-14 Correcteur de distorsion, symbole gnral Distortion corrector, general symbol


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10-16-15 Correcteur de distorsion, daffaiblissement Attenuation equalizer

10-16-16 Correcteur de distorsion de phase

Si lon dsire indiquer que la correction est faite en fonction de la drive de par rapport au temps, peut tre remplace par

Phase distortion corrector

If it is desirable to indicate that the equalization refers to the time derivative of , may be replaced by .

10-16-17 Correcteur de distorsion de temps de propagation Delay distortion correctorDelay equalizer

10-16-18 Limiteur damplitude sans distorsion Amplitude limiter without distortion

10-16-19 Pupitre de mlange Mixing network

10-16-20 Hacheur lectronique Electronic chopping device


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10-16-21 Filtre onde acoustique de surfaceFiltre OAS

Surface acoustic wave (SAW) filter

10-16-22 Rsonateur onde acoustique de surfaceRsonateur OAS

Surface acoustic wave (SAW) resonator

10-16-23 Ligne retard onde accoustique de surfaceLigne retard OAS

Surface acoustic wave (SAW) delay line


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Section 17 Dispositifs seuils Section 17 Limiters17.1 Deux modes sont prvus pour prciser lopration ralise par le limiteur. Le

premir est lemploi du symbole 10-17-01 complt par les symboles des formes dondes appropries, tracs sur lentre et sur la sortie. Le second est lemploi dun symbole spcifique constitu dun rectangle encadrant un trac driv de la caractristique entre/sortie, comme indiqu ci-aprs:Les axes de coordonnes sont supprims, mais lorigine est indique par un trait vertical rappelant laxe y des ordonnes.

EXEMPLE:

17.1 There are two ways of showing details of the operation carried out by a limiter. The first is the use of the symbol 10-17-01 supplemented by appropriate waveform symbols on the input and output lines. The second is the use of a specific symbol consisting of a rectangle containing a figure derived from the input/output characteristic in the following manner:The axes are deleted, but the origin is indicated by a short vertical stroke representing the y-axis.

EXAMPLE:

Sortie Output

Caractristique: Entre Characteristic: Input

Symbole: Symbol:

A lintrieur du rectangle, lorigine peut tre place en un point laissant la caractristique le maximum de place.

EXEMPLE:

The origin may be located in the rectangle in such a position that the characteristic makes the maximum use of the available space.

EXAMPLE:

Sortie Output

Caractristique: Entre Characteristic: Input

Symbole: Symbol:

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10-17-01 crteur Clipper

10-17-02 piteur

Dispositif seuil

Base limiter

Threshold device

10-17-03 piteur seuil ajustable prdtermin Base limiter with preset of the threshold adjustmentThreshold device with preset adjustment of the threshold

10-17-04 crteur de valeurs positives Positive peak clipper

10-17-05 crteur de valeurs ngatives Negative peak clipper

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Section 18 Tranformateurs (termineurs) et transformateurs hybrides

Section 18 Terminating sets and hybrid transformers


10-18-01 Termineur Terminating set

10-18-02 Equilibreur Balancing network

10-18-03 Termineur avec quilibreur Terminating set with balancing network

10-18-04 Transformateur diffrentiel symtrique Hybrid transformer

10-18-05 Transformateur diffrentiel asymtrique reprsent avec un quilibreur

Asymmetric (skew) hybrid transformer, shown with balancing network

10-18-06 Dispositif permettant de commuter un circuit quatre fils soit sur un circuit deux fils, soit sur un circuit quatre fils, la suite de la rception dun signal de commande

Equipment for connecting a four-wire circuit to either a two-wire circuit or four-wire circuit depending upon the reception of a control signal

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Section 19 Modulateurs, dmodulateurs, discriminateurs

Section 19 Modulators, demodulators, discriminators


10-19-01 Modulateur, dmodulateur ou discriminateur, symbole gnral

Ce symbole est utilis comme indiqu sur lexemple ci-aprs, dans lequel des traits dentres et de sorties, ainsi que des lettres, ont t ajouts pour faciliter lexplication.

Modulator, demodulator or discriminator, general symbol

This symbol is used as follows. Letters and input and output lines have been added to the figure for the purpose of explanation.

a reprsente lentre du signal modulant ou du signal modul.

b reprsente la sortie du signal modul ou du signal aprs dmodulation.

c reprsente lentre de londe porteuse, si ncessaire.

Les lettres ne font pas partie du symbole.

Des symboles distinctifs peuvent tre placs lintrieur du symbole ou prs du symbole comme figur ci-dessous.

a represents the modulating or modulated signal input.

b represents the modulated or demodulated signal output.

c represents the input of the carrier-wave if required.

The letters are not part of the symbol.

Qualifying symbol may be placed inside or outside the symbol as shown below.

10-19-02 Modulateur deux bandes latrales Modulator, double sideband output

10-19-03 Modulateur par codage dimpulsions (code binaire sept moments)

Pulse code modulator (seven-unit binary code output)

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10-19-04 Dmodulateur restituant une frquence audible partir dune latrale unique sans onde porteuse

Demodulator, single sideband with suppressed amplitude of the carrier-frequency, with audio-output


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Section 20 Concentrateurs, multiplexeurs Section 20 Concentrators, multiplexers


10-20-01 Fonction de concentration de gauche droite, symbole distinctif

Concentrating function from left to right, qualifying symbol

10-20-02 Fonction dexpansion de gauche droite, symbole distinctif

Expanding function from left to right, qualifying symbol


EXEMPLES:

Concentrateur avec m circuits dentre et n circuits de sortie

EXAMPLES:

Concentrator with m input circuits and n output circuits


10-20-05 Fonction de multiplexage, symbole distinctif Multiplexing function, qualifying symbol

10-20-06 Fonction de dmultiplexage, symbole distinctif

Sil y a risque de confusion, DX peut tre remplac par DMUX.

Demultiplexing function, qualifying symbol

If confusion can arise, DX may be replaced by DMUX.

10-20-07 Fonction de multiplexage et de dmultiplexage, symbole distinctif

Multiplexing and demultiplexing function, qualifying symbol

10-20-08 Multiplexeur avec conversion analogique/numrique Multiplexer with analog/digital conversion

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10-20-09 Multiplexeur/Dmultiplexeur avec conversion analogique/numrique

Multiplexer/Demultiplexer with analog/digital conversion


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Chapitre V: Diagrammes de spectre de frquences Chapter V: Frequency spectrum diagramsV.1 Un diagramme de spectre de frquences est constitu dun axe de frquences

(horizontal) sur lequal on prcise, au moyen de symboles, le rle des ondes des diffrentes frquences, ou des bandes de frquences utilises dans un systme de transmission, ainsi que leurs positions relatives dans le spectre.

V.1 A frequency spectrum is represented on a diagram by means of symbols on a horizontal frequency axis. The symbols show the functions of the various frequencies and frequency bands used in the transmission system as well as their relative positions in the spectrum.

Section 21 lments de symboles Section 21 Symbol elements


10-21-01 Frquence dune onde porteuse

Pour reprsenter une onde porteuse module en frquence ou en phase, ce symbole doit tre complt des lettres f ou . Voir, par exemple, lesymbole 10-22-02.

Sil nen rsulte aucun risque de confusion, la tte de flche peut tre supprime sur la ligne verticale reprsentant londe porteuse et sur la ligne horizontale reprsentant la frquence.

Carrier frequency

When this symbol is used to represent a carrier which is modulated in frequency or phase, the f or shall be added. For example, see symbol 10-22-02.

The arrowhead on the vertical line representing the carrier (and the arrowhead on the frequency axis) may be omitted if no confusion is likely.

10-21-02 Frquence dune onde porteuse supprime Suppressed-carrier frequency

10-21-03 Frquence dune onde porteuse damplitude rduite Reduced-carrier frequency

10-21-04 Frquence dune onde pilote Dans les systmes de transmission multiples, par partage de frquences, lordre du groupe auquel la frquence donde pilote appartient (par exemple: groupe primaire, secondaire, tertiaire ou quaternaire) peut tre indiqu par un nombre correspondant de traits obliques.

Pilot frequency

For transmission systems (FDM) the order of the groupe to which the pilot refers, for example: group, supergroup, mastergroup or supermastergroup, may be indicated by adding the respective number 1, 2, 3 or 4 of oblique strokes.

10-21-05 EXEMPLE:

Frquence dune onde pilote de groupe secondaire

EXAMPLE:

Supergroup pilot frequency

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10-21-06 Frquence dune onde pilote supprime Suppressed pilot frequency

10-21-07 Frquence dune onde additionnelle de mesure Additional measuring frequency

10-21-08 Frquence dune onde additionnelle de mesure qui est transmise ou mesure sur demande

Additional measuring frequency, transmitted or measured on request

10-21-09 Frquence dune onde de signalisation Signalling frequency

10-21-10 Bande de frquences. symbole, gnral

Lorsquon dsire prciser quune bande particulire de frquences est directe ou inverse, lun des symboles 10-21-13 ou 10-21-16 doit tre utilis.

Lordre du groupe de la bande de frquences peut tre indiqu en utilisant des traits obliques, en accord avec la rgle du symbole 10-21-04.

Frequency band, general symbol

If it is desired to show whether a particular band of frequencies is erect or inverted, symbol 10-21-13or 10-21-16 shall be used.

The order of a band of frequencies forming part of a transmission system may be indicated by adding oblique strokes according to the rule withsymbol 10-21-04.

10-21-11 EXEMPLES:

Groupe tertiaire

La division dune bande de frquences en voies, groupes, etc., peut tre indique par un nombre appropri de traits verticaux.

EXAMPLES:

Mastergroup

The division of a band into channels, groups, etc., may be shown by adding vertical lines.

10-21-12 Bande de frquences comprise entre f1 et f2, divise en cinq voies, groupes, etc.

Band of frequencies from f1 to f2 divided into five channels, groups, etc.


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10-21-13 Bande directe de frquences

Ce symbole nindique pas ncessairement que toute la largeur de bande est effectivement utilise.

Ce symbole est utilis pour reprsenter une seule voie, groupe, etc., ou encore un certain nombre de voies, groupes, etc.

Erect band of frequencies

There is no indication of how much of the bandwidth shown by the symbol is actually used.

This symbol may be used to represent a single channel, group, etc., or a number of channels, group, etc., providing they are all erect.

10-21-14 EXEMPLES:Bandes directes de frquences pour un groupede 12 voies

EXAMPLES:

Band of frequencies consisting of a group of 12 erect channels

10-21-15 Forme simplifieSimplified form

10-21-16 Bande inverse de frquences

Les rgles du symbole 10-21-13 sont applicables

Inverted band frequencies

The rules with symbol 10-21-13 apply

10-21-17 Bande de voies, groupes, etc., les uns directs et les autres inverses

Band of mixed channels, groups etc., some erect, remainder inverted


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Section 22 Exemples de diagrammes de spectre de frquences

Section 22 Examples of frequency spectrum diagrams


10-22-01 Frquence dune onde porteuse en modulation damplitude avec les deux bandes latrales

Amplitude-modulated carrier wave with both sidebands

10-22-02 Frquence dune onde porteuse en modulation de phase avec les deux bandes latrales

Dans le cas dune modulation de frquence, doit tre remplace par f.

Phase modulated carrier wave with both sidebands

For frequency modulation, replace by f.

10-22-03 Frquence dune onde porteuse en modulation damplitude avec les deux bandes latrales; les basses frquences du signal modulant ntant pas transmises

Amplitude-modulated carrier wave with both sidebands, lower modulating frequencies not being transmitted

10-22-04 Frquence dune onde porteuse en modulation damplitude avec les deux bandes latrales; les basses frquences (jusqu zro) du signal modulant tant transmises

Amplitude-modulated carrier wave with both sidebands, modulating frequencies down to zero being transmitted

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10-22-05 Bande latrale unique et onde porteuse supprime (cas de la transmission de la bande infrieure inverse)

Single-sideband suppressed carrier wave

10-22-06 Bande latrale unique et onde porteuse rduite (cas de la transmission de la bande infrieure directe)

Reduced-carrier wave with single, lower, erect sideband

10-22-07 Onde porteuse supprime avec bande latrale unique divise en trois parties, transposes pour assurer le secret

Suppressed-carrier wave with single-sideband scrambled for secrecy

10-22-08 Onde porteuse en modulation damplitude,avec une bande latrale suprieure et une bande rsiduelle infrieure; les basses frquences (jusqu zro) du signal modulant tant transmises

Amplitude-modulated carrier wave with upper sideband and lower vestigial sideband, modulating frequencies down to zero being transmitted


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10-22-09 Bande de cinq voies, groupes, etc., dont un est direct et quatre inverses

Band of five channels, groups, etc., four of which are inverted and one erect

10-22-10 Voir ci-dessousSee below

Systme de transmission de 4 MHz avec indication des groupes secondaires et des frquences pilotes

4 MHz transmission system showing supergroups and pilot frequencies


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Chapitre VI: Fibres optiques Chapter VI: Fibre optics

Section 23 Ligne de transmission Section 23 Transmission line


10-23-01 Fibre optique ou cble fibres optiquesSymbole gnral

Optical fibre or optical fibre cableGeneral symbol

Le symbole complmentaire 02-09-02 peut tre ajout pour indiquer quon utilise de la lumire cohrente:

The qualifying symbol 02-09-02 may be added to indicate that coherent light is being used:

Si aucune confusion ne peut se produire, llment de symbole voquant un guide donde optique (deux flches dans un cercle) peut tre omis.

If no confusion can arise the symbol element denoting an optical wave guide (two arrows in a circle) may be omitted.

10-23-02 Fibre optique multimode saut dindice

II convient que les identificateurs dindice de la fibre soient placs prs du symbole relatif au guide donde optique pour viter une confusion avec les formes donde du signal.

Multimode stepped index optical fibre

Fibre index identifiers should be placed adjacent to the symbol element denoting an optical wave guide to avoid confusion with signal waveforms.

10-23-03 Fibre optique monomode saut dindice

Voir la rgle du symbole 10-23-02

Single mode stepped index optical fibre

See the rule with symbol 10-23-02

10-23-04 Fibre optique gradient dindice

Voir la rgle du symbole 10-23-02

Graded index optical fibre See the rule with symbol 10-23-02

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10-23-05 Cble fibres optiques avec indication de donnes dimensionelles.

Les diamtres des fibres optiques doivent tre indiqus en allant de lintrieur de la fibre vers lextrieur, par exemple:a = cur, b = gaine optique, c = revtement primaire, d = revtement secondaire.

Optical fibre cable with dimenstional data shown.

The diameter of optical fibres shall be indicated from the inside of the fibre towards the outside, for example:a = core, b = cladding, c = first coating, d = jacketing.

10-23-06 EXEMPLES:

Cble fibres optiques contenant 20 fibres multimodes saut dindice, chacune ayant un diamtre de cur de 150 m et un diamtre de gaine optique de 300 m.

EXAMPLES:Optical fibre cable containing 20 multimode stepped index optical fibres, each with a core diameterof 150 m and a cladding diameter of 300 m.

Si une seule ligne reprsente un groupe de fibres optiques, leur nombre peut tre indiqu soit par laddition de petits traits, soit par un trait et un chiffre.

When a single line represents a group of optical fibres, their number may be indicated either by adding small strokes or one stroke and a figure.

10-23-07 Cble composite contenant la fois des conducteurs en cuivre et des fibres optiques.

Example of a composite cable containing both copper conductors and optical fibres.

10-23-08 Jonction permanente Permanent joint


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Section 24 Dispositifs de transmission Section 24 Transmission devices


10-24-01 Emetteur de lumire pour systme fibre optique Guided light transmitter

10-24-02 Rcepteur de lumire pour systme fibre optique Guided light receiver

10-24-03 Emetteur de lumire guide cohrente utilisant une diode laser

Coherent guided light transmitter with laser diode

10-24-04 Connexion optique femelle mle Optical connection female male

10-24-05 Commutation optique (dans un circuit fibres optiques)

Change-over contact in optical fibre circuit

10-24-06 Attnuateur optique Optical attenuator

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10-24-07 Embrouilleur de modes Mode scrambler

10-24-08 Suppresseur de mode de gaine Cladding mode stripper

10-24-09 Rpartiteur deux voies, symbole gnral

Ce symbole peut aussi tre utilis pour reprsenter un mlangeur, si le sens de linformation correspond celui dun mlangeur.

Splitter, two-way, general symbol

This symbol may also be used to represent a combiner if the direction of information flow corresponds with a combiner.

10-24-10 EXEMPLE:

Mlangeur deux voies, symbole gnral. Sens de linformation de gauche droite.

EXAMPLE:

Combiner, two-way, general symbol. Information flow from left to right.

10-24-11 Drivation dusage une seule ligne, symbole gnral Single tap-off, general symbol

10-24-12

200%

Drivation zone de diffusion, divisant un signal en deux.Le cercle peut tre omis si aucune confusion nest possible.

Ce symbole peut aussi tre utilis pour reprsenter un coupleur zone de diffusion si le sens de linformation correspond celui dun coupleur zne de diffusion.

Fused tap, dividing a signal into two.

The circle may be omitted if no confusion can arise.

This symbol may also be used to represent a fused coupler if the direction of information flow corresponds with a fused coupler.


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10-24-13

200%

Coupleur en toile zne de diffusion, type transmission

Un coupleur en toile de ce type relie chaque entre toutes les sorties, les diffrentes entres demeurant isoles entre elles.

Fused star coupler, transmissive type

A star coupler of this type connects each input with all outputs, whereas there is isolation between different inputs.

10-24-14

200%

Coupleur en toile zne de diffusion, type rflexion

Dans un coupleur en toile de ce type, chaque accs est bidirectionnel et peut tre utilis en mme temps comme entre et comme sortie.Chaque accs alimente chacun des autres accs.

Fused star coupler, reflective type

In a star coupler of this type each port is bidirectional and may be used as input and output at the same time. Each port feeds every other port.

10-24-15 Coupleur direct, symbole gnral Directional coupler, general symbol


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Annexe A (informative) Anciens symboles Annex A (informative) Older symbolsCette annexe contient une slection de symboles normaliss dans laCEI 617-10 (1983) qui sont maintenant supprims. Ces symboles figurent ici seulement afin de faciliter la comprhension des schmas anciens.

(Dans cette annexe, les numros de la publication de 1983 sont mis entre parenthses.)

This annex contains symbols standardized in IEC 617-10 (1983), which are now deleted. They are shown here for information purposes only to facilitate the comprehension of older diagrams.

(In this annex the numbering from 1983-edition is quoted in parentheses.)

A1 Dispositifs un et deux accs A1 One- and two-port devices


10-A1-01 Autre formeOther form

Terminaison dissipative adapte Matched termination

(10-08-26)

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Annex B (informative) English alphabetic index

Active space station 10-06-10Additional measuring frequency 10-21-07Additional measuring frequency, transmitted or

measured on request 10-21-08Adjustable discontinuity 10-08-02Amplifier 10-15-01Amplifier with by-pass 10-15-05Amplifier with external adjustability 10-15-03Amplifier, negative impedance both-way 10-15-04Amplitude limiter without distortion 10-16-18Amplitude-modulated carrier wave with both sidebands 10-22-01Amplitude-modulated carrier wave with both sidebands,

lower modulating frequencies not being transmitted 10-22-03Amplitude-modulated carrier wave with both sidebands,

modulating frequencies down to zero beingtransmitted 10-22-04

Amplitude-modulated carrier wave with upper sidebands and lower vestigial sidebands 10-22-08

Antenna (qualifying smbol), direction of radiation variable in elevation 10-03-06

Antenna (qualifying symbol), circular polarization 10-03-02Antenna (qualifying symbol), direction finder 10-03-08Antenna (qualifying symbol), direction of radiation fixed

in azimuth 10-03-03Antenna (qualifying symbol), direction of radiation fixed

in azimuth and elevation 10-03-07Antenna (qualifying symbol), direction of radiation fixed

in azimuth and elevation 10-03-07Antenna (qualifying symbol), direction of radiation fixed

in azimuth 10-03-03Antenna (qualifying symbol), direction of radiation fixed

in elevation 10-03-05Antenna (qualifying symbol), direction of radiation fixed

in elevation 10-03-05Antenna (qualifying symbol), direction of radiation

variable in azimuth 10-03-04Antenna (qualifying symbol), direction of radiation

variable in elevation 10-03-06

Antenna (qualifying symbol), direction of radiation variable in azimuth 10-03-04

Antenna (qualifying symbol), plane polarization 10-03-01Antenna (qualifying symbol), radio beacon 10-03-08Antenna, balun (balancing unit) 10-05-08Antenna, cheese (box) reflector 10-05-12Antenna, counterpoise 10-05-03Antenna, dipole 10-05-05Antenna, folded dipole 10-05-06Antenna, folded dipole with balun and coaxial feeder 10-05-09Antenna, folded dipole with three directors and one

reflector 10-05-07Antenna with circular polarization 10-04-02Antenna with direction of radiation variable in azimuth 10-04-03Antenna with direction of radiation variable in elevation 10-04-05Antenna, direction finding (radio beacon) 10-04-06Antenna, direction finding (radio goniometric) 10-04-06Antenna, directional, fixed in azimuth, horizontal

polarisation 10-04-04Antenna, directional, fixed in azimuth,

vertically polarized 10-04-07Antenna, frame 10-05-01Antenna, general symbol 10-04-01Antenna, horn 10-05-11Antenna, horn-reflector 10-05-14Antenna, loop 10-05-01Antenna, magnetic rod 10-05-04Antenna, parabolic 10-05-13Antenna, radar 10-04-08Antenna, rhombic, terminated by a resistor 10-05-02Antenna, slot, with rectangular waveguide feeder 10-05-10Antenna, turnstile 10-04-09Aperture coupler 10-10-04Aperture coupler at a junction 10-10-05Aperture coupler, E-plane 10-10-06Artificial line 10-16-12Asymmetric (skew) hybrid transformer 10-18-05Attenuation equalizer 10-16-15Attenuator 10-08-12Attenuator, fixed loss 10-16-01

EN

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56

BS

I 10-1998

Attenuator, optical 10-24-06Attenuator, variable loss 10-16-02Balancing network 10-18-02Balun (balancing unit) 10-05-08Band of five channels, groups 10-22-09Band of frequencies consisting of a group of 12 erect

channels 10-21-14Band of frequencies consisting of a group of 12 erect

channels, simplified form 10-21-15Band of frequencies from f1 to f2 divided 10-21-12Band of mixed channels, groups, some erect, remainder

inverted 10-21-17Band-pass filter 10-16-06Band-pass filter switched by gas discharge 10-08-18Band-stop filter 10-16-07Base limiter 10-17-02Base limiter with preset of the threshold adjustment 10-17-03Both way amplifier, negative impedance 10-15-04Carrier frequency 10-21-01Carrier wave, amplitude modulated, with both sidebands 10-22-01Carrier wave, amplitude-modulated, with both

sidebands, modulating frequencies down to zero being transmitted 10-22-04

Carrier wave, amplitude-modulated, with upper sideband and lower vestigial sideband 10-22-08

Carrier wave, phase modulated, with both sidebands 10-22-02Carrier wave, reduced, with single, lower, erect sideband 10-22-06Carrier wave, single-sideband suppressed 10-22-05Carrier wave, suppressed, with single-sideband

scrambled for secrecy 10-22-07Cavity resonator 10-08-17Change-over contact in optical fibre circuit 10-24-05Changer of phase, directional 10-08-21Cheese (box) reflector 10-05-12Chopping device, elctronic 10-16-20Circular polarization 10-03-02Circular waveguide 10-07-03Circulator, four-port 10-09-13Circulator, four-port, with reversible direction of

circulation 10-09-14Circulator, three-port 10-09-12Cladding mode stripper 10-24-08Clipper 10-17-01

Clipper, negative peak 10-17-05Clipper, positive peak 10-17-04Coaxial waveguide 10-07-05Code converter, binary code 10-14-06Coherent guided light transmitter with laser diode 10-24-03Coil-loaded line 10-01-07Combiner, two-way 10-24-10Compressor 10-16-10Concentrating function (qualifying symbol) 10-20-01Concentrator with m input circuits and n output circuits 10-20-03Connection, optical female, male 10-24-04Connector for a four-wire circuit 10-18-06Connector, waveguide, symmetric 10-07-13Connectors, waveguide, asymmetric 10-07-14Contact, change-over, in optical fibre circuit 10-24-05Converter 10-14-01Converter, code converter, binary code 10-14-06Converter, frequency divider 10-14-04Converter, frequency, multiplier 10-14-03Converter, pulse inverter 10-14-05Converter, pulse regenerator 10-14-08Converter giving clock-time indication 10-14-07Converter, frequency 10-14-02Corrector, delay distortion 10-16-17Corrector, distortion 10-16-14Corrector, phase distortion 10-16-16Counterpoise 10-05-03Coupler (or feed) type unspecified 10-10-01Coupler to a cavity resonator 10-10-02Coupler to a rectangular waveguide 10-10-03Coupler, aperture 10-10-04Coupler, aperture, at a junction 10-10-05Coupler, directional 10-09-09Coupler, directional 10-24-15Coupler, fused star, reflective type 10-24-14Coupler, fused star, transmissive type 10-24-13Coupler, loop 10-10-07Coupler, probe 10-10-08Coupler, window 10-10-04Coupler, window (aperture), E-plane 10-10-06Coupler, window, at a junction 10-10-05De-emphasis device 10-16-09Delay distortion corrector 10-16-17Delay equalizer 10-16-17

EN

60617-10:1996

B

SI 10-1998

57

Delay line, surface acoustic wave (SAW) 10-16-23Demodulator 10-19-01Demodulator, single sideband with suppressed amplitude 10-19-04Dipole 10-05-05Direction finder 10-03-08Direction of radiation fixed in azimuth, antenna

(qualifying symbo) 10-03-03Directional coupler 10-24-15Directional phase changer 10-08-21Discontinuity in series with transmission path 10-08-07Discontinuity in shunt with transmission path 10-08-06Discontinuity, adjustable 10-08-02Discontinuity, capacitive, in shunt with the

transmission path 10-08-08Discontinuity, parallel resonant, in series with the

transmission path 10-08-09Discontinuity, terminal 10-08-11Discontinuity, two-port 10-08-01Discontinuity, variable 10-08-02Discriminator 10-19-01Distortion corrector 10-16-14Divider, frequency 10-14-04E-H tuner 10-08-04E-plane window (aperture) coupler 10-10-06Earth station for communication with a space station 10-06-13Earth station only for space station tracking 10-06-12Equalizer, attenuation 10-16-15Equalizer, delay 10-16-17Equipment for connecting a four-wire circuit 10-18-06Erect band of frequencies 10-21-13Example of a composite cable containing both copper

conductors and optical fibres 10-23-07Expander 10-16-11Expanding function (qualifying symbol) 10-20-02Field-polarization rotator 10-09-15Filter 10-16-03Filter, band-pass 10-16-06Filter, band-stop 10-16-07Filter, high-pass 10-16-04Filter, low-pass 10-16-05Filter, band-pass, switched by gas discharge 10-08-18Filter, mode 10-08-19Finder, direction 10-03-08Flexible waveguide 10-07-10

Folded dipole 10-05-06Folded dipole with balun and coaxial feeder 10-05-09Folded dipole with three directors and one reflector 10-05-07Four-port junction 10-09-05Four-wire circuit with both-way amplification 10-02-03Four-wire circuit with both-way terminals amplification

with echo suppression 10-02-06Four-wire type circuit 10-02-05Frame antenna 10-05-01Frequency band 10-21-10Frequency converter 10-14-02Frequency converter, multiplier 10-14-03Frequency divider 10-14-04Frequency spectrum diagrams, 4 MHz transmission

system 10-22-10Frequency spectrum diagrams, amplitude-modulated

carrier wave with both sidebands 10-22-01Frequency spectrum diagrams, amplitude-modulated

carrier wave with both sidebands, modulating frequencies down to zero being transmitted 10-22-04

Frequency spectrum diagrams, amplitude-modulated carrier wave with upper sideband and lower vestigial sideband 10-22-08

Frequency spectrum diagrams, band of five channels, groups, etc 10-22-09

Frequency spectrum diagrams, phase modulated carrier wave with both sidebands 10-22-02

Frequency spectrum diagrams, reduced-carrier wave with single, lower, erect sideband 10-22-06

Frequency spectrum diagrams, single-sideband suppressed carrier wave 10-22-05

Frequency spectrum diagrams, suppressed-carrier wave with single-sideband scrambled for secrecy 10-22-07

Frequency spectrum diagrams, additional measuring frequency 10-21-07

Frequency spectrum diagrams, additional measuring frequency, transmitted or measured on request 10-21-08

Frequency spectrum diagrams, band of frequencies from f1 to f2 divided 10-21-12

Frequency spectrum diagrams, band of frequencies consisting of a group of 12 erect channels 10-21-14

EN

60617-10:1996

58

BS

I 10-1998

Frequency spectrum diagrams, band of frequencies consisting of a group of 12 erect channels, simplified form 10-21-15

Frequency spectrum diagrams, band of mixed channels, groups etc., some erect, remainder inverted 10-21-17

Frequency spectrum diagrams, carrier frequency 10-21-01Frequency spectrum diagrams, erect band of frequencies 10-21-13Frequency spectrum diagrams, frequency band 10-21-10Frequency spectrum diagrams, inverted band of

frequencies 10-21-16Frequency spectrum diagrams, mastergroup 10-21-11Frequency spectrum diagrams, pilot frequency 10-21-04Frequency spectrum diagrams,

reduced-carrier frequency 10-21-03Frequency spectrum diagrams, signalling frequency 10-21-09Frequency spectrum diagrams,

supergroup pilot frequency 10-21-05Frequency spectrum diagrams,

suppressed pilot frequency 10-21-06Frequency spectrum diagrams, suppressed-carrier

frequency 10-21-02Fused star coupler, reflective type 10-24-14Fused star coupler, transmissive type 10-24-13Fused tap, dividing a signal into two 10-24-12Gas-filled rectangular waveguide 10-07-09Generator, signal, noise generator 10-13-06Generator, signal, pulse generator 10-13-04Generator, signal, saw-tooth generator 10-13-03Generator, signal, sine-wave generator 10-13-02Generator, signal, sine-wave generator with

adjustable frequency 10-13-05Generator, signal, waveform generator 10-13-01Goubau line 10-07-08Graded index optical fibre 10-23-04Guided light receiver 10-24-02Guided light transmitter (optical fibre) 10-24-01Gyrator 10-08-22High-pass filter 10-16-04Horn antenna 10-05-11Horn feed 10-05-11Horn-reflector antenna 10-05-14Hybrid ring junction 10-09-11Hybrid transformer 10-18-04

Inductively loaded line 10-01-03Inverted band of frequencies 10-21-16Inverter, pulse 10-14-05Isolator (for microwaves) 10-08-20Isolator (for microwaves) 10-08-20Joint, rotatable, symmetrical connectors 10-07-15Junction (waveguide), directional coupler 10-09-09Junction (waveguide), four-port 10-09-05Junction (waveguide), hybrid ring 10-09-11Junction (waveguide), magic T hybrid 10-09-07Junction (waveguide), magic T hybrid, simplified form 10-09-08Junction (waveguide), power divider: 10-09-04Junction (waveguide), quadrature hybrid 10-09-10Junction (waveguide), series T, E-plane T 10-09-02Junction (waveguide), shunt T, H-plane T 10-09-03Junction (waveguide), three-port 10-09-01Laser 10-11-03Laser generator, ruby 10-11-05Laser generator, ruby, with xenon lamp as

pumping source 10-11-06Laser used as a generator; 10-11-04Limiter, amplitude, without distortion 10-16-18Limiter, base 10-17-02Limiter, base, with preset of the threshold adjustment 10-17-03Line, artificial 10-16-12Loop antenna 10-05-01Loop coupler 10-10-07Low-pass filter 10-16-05Magic T hybrid junction 10-09-07Magic T hybrid junction, simplified form 10-09-07Magnetic rod antenna 10-05-04Maser 10-11-01Maser used as an amplifier 10-11-02Maser, optical 10-11-03Mastergroup 10-21-11Matched termination 10-08-25Matching device 10-08-02Mixing network 10-16-19Mode filter 10-08-19Mode filter 10-08-19Mode scrambler 10-24-07Mode suppression 10-07-12Modulation, pulse (qualifying symbol), 3-out-of-7 code 10-12-07Modulation, pulse (qualifying symbol), pulse-amplitude 10-12-03

EN

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B

SI 10-1998

59

Modulation, pulse (qualifying symbol), pulse-code modulation 10-12-06

Modulation, pulse (qualifying symbol), pulse-duration modulation 10-12-05

Modulation, pulse (qualifying symbol), pulse-frequency 10-12-02Modulation, pulse (qualifying symbol), pulse-interval 10-12-04Modulation, pulse (qualifying symbol), pulse-phase 10-12-00Modulation, pulse (qualifying symbol), pulse-position 10-12-01Modulator 10-19-01Modulator, double sideband output 10-19-02Modulator, pulse code 10-19-03Multi-stub tuner 10-08-05Multimode stepped index optical fibre 10-23-02Multiplexer (qualifying symbol) demultiplexing function 10-20-06Multiplexer multiplexing and demultiplexing function 10-20-07Multiplexer (qualifying symbol) multiplexing function 10-20-05Multiplexer with analog/digital conversion 10-20-08Multiplexer/Demultiplexer with analog/digital conversion 10-20-09Negative impedance both-way amplifier 10-15-04Negative peak clipper 10-17-05Network, mixing 10-16-19Network, phase-changing 10-16-13Noise generator 10-13-06Optical attenuator 10-24-06Optical connection female, male 10-24-04Optical fibre 10-23-01Optical fibre, graded index 10-23-04Optical fibre, multimode stepped index 10-23-02Optical fibre, permanent joint 10-23-08Optical fibre, single mode stepped index 10-23-03Optical fibre cable 10-23-01Optical fibre cable containing 20 multimode stepped index

optical fibres 10-23-06Optical fibre cable with dimensional data shown 10-23-05Parabolic antenna, 10-05-13Passive relay station 10-06-08Passive space station 10-06-11Permanent joint 10-23-08Phase changer, directional 10-08-21Phase distortion corrector 10-16-16Phase modulated carrier wave with both sidebands 10-22-02Phase-changing network 10-16-13Pilot frequency 10-21-04Plane polarization 10-03-01

Polarization, circular 10-03-02Polarization, plane 10-03-01Positive peak clipper 10-17-04Power divider 10-09-04Pre-emphasis device 10-16-08Probe coupler 10-10-08Pulse code modulator 10-19-03Pulse inverter 10-14-05Pulse modulation (qualifying symbol), 3-out-of-7-code 10-12-06Pulse modulation (qualifying symbol), pulse-amplitude 10-12-03Pulse modulation (qualifying symbol), pulse-code mode 10-12-06Pulse modulation (qualifying symbol), pulse-duration 10-12-05Pulse modulation (qualifying symbol), pulse-frequency 10-12-02Pulse modulation (qualifying symbol), pulse-interval 10-12-04Pulse modulation (qualifying symbol), pulse-phase 10-12-01Pulse modulation (qualifying symbol), pulse-position 10-12-01Pulse regenerator 10-14-08Quadrature hybrid junction 10-09-10Radar antenna 10-04-08Radio beacon 10-03-08Radio link 10-01-06Radio station 10-06-01Radio station, mobile 10-06-07Radio-station, controlling station 10-06-06Radio-station, direction finding, radio receiving 10-06-03Radio-station, portable 10-06-05Radio-station, radio beacon transmitting 10-06-04Radio-station, transmitting and receiving 10-06-02Receiver, guided light receiver 10-24-02Rectangular waveguide 10-07-01Rectangular waveguide with propagation in the TE01

mode 10-07-02Reduced-carrier frequency 10-21-03Reduced-carrier wave with single, lower, erect sideband 10-22-06Reflector, reflecting partially, (qualifying symbol) 10-07-18Reflector, reflecting totally, (qualifying symbol) 10-07-17Regenerator, pulse 10-15-05Relay station, passive 10-06-08Repeater 10-15-01Resonator, cavity 10-08-17Resonator, qualifying symbol 10-07-16Resonator, surface acoustic wave (SAW) 10-16-22Rhombic antenna, terminated by a resistor 10-05-02Ridged waveguide 10-07-04

EN

60617-10:1996

60

BS

I 10-1998

Rotatable joint, symmetrical connectors 10-07-15Ruby laser generator 10-11-05Ruby laser generator, shown with xenon lamp as

pumping source 10-11-06Saw-tooth generator 10-13-03Saw-tooth generator 10-13-03Scrambler, mode 10-24-07Series T, E-plane T 10-09-02Short circuit 10-08-23Short circuit, sliding 10-08-24Shunt T, H-plane T 10-09-03Signal generator 10-13-01Signalling frequency 10-21-09Sine-wave generator 10-13-02Sine-wave generator with adjustable frequency 10-13-05Single mode stepped index optical fibre 10-23-03Single tap-off 10-24-11Single-sideband suppressed carrier wave 10-22-05Skew hybrid transformer 10-18-05Slide screw tuner 10-08-03Sliding probe coupled to a transmission path 10-10-09Sliding short circuit 10-08-24Slot antenna with rectangular waveguide feeder 10-05-10Sound channel (television or radio broadcasting) 10-01-04Space station 10-06-09Space station, active 10-06-10Space station, passive 10-06-11Splitter, two-way 10-24-09Stripline, gobeau line 10-07-08Stripline with three conductors 10-07-07Stripline with two conductors 10-07-06Stripper, cladding mode 10-24-08Supergroup pilot frequency 10-21-05Suppressed pilot frequency 10-21-06Suppressed-carrier frequency 10-21-02Suppressed-carrier wave with single-sideband

scrambled for secrecy 10-22-07Surface acoustic wave (SAW) 10-16-21Surface acoustic wave (SAW) delay line 10-16-23Surface acoustic wave (SAW) resonator 10-16-22Surface-acoustic-wave (SAW) device, one-port, with

reflectors 10-08-27Surface-acoustic-wave (SAW) device, two port, with two

reflectors, reflecting totally 10-08-28

Surface-acoustic-wave (SAW) device, two port, with two reflectors, reflecting totally, anda nother one reflecting partially 10-08-29

Surface-acoustic-wave (SAW) device, two-port 10-08-30Switch, microwave, four-position 10-09-18Switch, microwave, three-position 10-09-17Switch, microwave, two-position 10-09-16Tap, fused, dividing a signal into two 10-24-12Tap-off, single 10-24-11Taper transition from circular to rectangular waveguide 10-08-16Telecommunication-circuit, four-wire type 10-02-05Telecommunication-circuit, four-wire, both-way

amplification 10-02-03Telecommunication-circuit, four-wire, both-way

terminals amplification with echo suppression 10-02-06Telecommunication-circuit, sound channel

(television or radio broadcasting) 10-01-04Telecommunication-circuit, telegraphy 10-01-02Telecommunication-circuit, telephone circuit 10-01-05Telecommunication-circuit, telephony 10-01-01Telecommunication-circuit, transmission of data 10-01-02Telecommunication-circuit, two-wire line with

both-way amplification 10-02-02Telecommunication-circuit, two-wire line with

unidirectional amplification 10-02-01Telecommunication-circuit, video channel (television) 10-01-03Telecommunication-line, coil-loaded line 10-01-07Telecommunication-line, inductively loaded line 10-01-04Telecommunication-line, radio link 10-01-06Telecommunication-line, telephone line 10-01-05Telegraphy 10-01-02Telephone circuit 10-01-05Telephone line 10-01-05Telephony 10-01-01Terminal discontinuity 10-08-11Terminating set 10-18-01Terminating set with balancing network 10-18-03Termination, matched 10-08-25Three-port junction 10-09-01Threshold device 10-17-02Threshold device, base limiter 10-17-02Threshold device, base limiter with preset of the

threshold adjustment 10-17-03

EN

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SI 10-1998

61

Threshold device, clipper 10-17-01Threshold device, negative peak clipper 10-17-05Threshold device, positive peak clipper 10-17-04Transformer, hybrid 10-18-04Transformer, hybrid, asymmetric (skew) 10-18-05Transition 10-08-14Transition from circular to rectangular waveguide 10-18-15Transition, taper, from circular to rectangular waveguide 10-08-16Transmission device (optical fibre), change-over contact

in optical fibre circuit 10-24-05Transmission device (optical fibre),

cladding mode stripper 10-24-08Transmission device (optical fibre), coherent guided

light transmitter with laser diode 10-24-03Transmission device (optical fibre), combiner, two-way 10-24-10Transmission device (optical fibre), directional coupler 10-24-15Transmission device (optical fibre), fused star coupler,

reflective type 10-24-14Transmission device (optical fibre), fused star coupler,

transmissive type 10-24-13Transmission device (optical fibre), fused tap, dividing a

signal into two 10-24-12Transmission device (optical fibre), guided light receiver 10-24-02Transmission device (optical fibre), guided light

transmitter 10-24-01Transmission device (optical fibre), mode scrambler 10-24-07Transmission device (optical fibre), optical attenuator 10-24-06Transmission device (optical fibre), optical connection

female, male 10-24-04Transmission device (optical fibre), single tap-off 10-24-11Transmission device (optical fibre), splitter, two-way 10-24-09Transmission of data 10-01-02Transmission system (4 MHz) showing supergroups and

pilot frequencies 10-22-10Transmitter, coherent guided light with laser diode 10-24-03Transmitter, guided light (optical fibre) 10-24-01Tube, microwave, E-H tuner 10-08-04Tube, microwave, multi-stub tuner 10-08-05Tube, microwave, slide screw tuner 10-08-03Tuner, E-H 10-08-04Tuner, multi-stub 10-08-05Tuner, slide screw 10-08-03Turnstile antenna 10-04-09

Twisted waveguide 10-07-11Two-wire line with both-way amplification 10-02-02Two-wire line with unidirectional amplification 10-02-01Variable discontinuity 10-08-02Video channel (television) 10-01-03Waveform generator 10-13-01Waveguide, connectors asymmetric 10-07-14Waveguide, connectors, symmetric 10-07-13Waveguide, circular 10-07-03Waveguide, coaxial 10-07-05Waveguide, flexible 10-07-10Waveguide, rectangular 10-07-00Waveguide, rectangular, gas-filled 10-07-06Waveguide, rectangular, with propagation in the

TE01 mode 10-07-02Waveguide, ridged 10-07-04Waveguide, twisted 10-07-11Window coupler 10-10-04Window coupler at a junction 10-10-05Window coupler, E-plane 10-10-06

BSI389 Chiswick High RoadLondonW4 4AL

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60617-10_1996