IEC 62496-4-2011 Optical circuit boards - Part 4 Interface standards - General and guidance《光学电路板.第4部分 接口标准.一般和指南》.pdf

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1、 IEC 62496-4Edition 1.0 2011-01INTERNATIONAL STANDARD NORME INTERNATIONALEOptical circuit boards Part 4: Interface standards General and guidance Cartes circuits optiques Partie 4: Normes dinterface Gnralits et lignes directrices IEC62496-4:2011 colourinsideTHIS PUBLICATION IS COPYRIGHT PROTECTED Co

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16、.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 62496-4 Edition 1.0 2011-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical circuit boards Part 4: Interface standards General and guidance Cartes circuits optiques Partie 4: Normes dinterface Gnralits et lignes directrices INTERNATIONAL ELECTROTECHN

17、ICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 33.180.01 PRICE CODE CODE PRIX ISBN 978-2-88912-317-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale colourinside 2 62496-4 IEC:2011 CONTENTS FOREWORD

18、 . 4 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 3.1 General definitions 6 3.2 Core shape definitions . 7 4 Coordinates of I/O ports of waveguide OCB 9 4.1 Structural types of waveguide OCB . 9 4.2 Origin point and coordinate axis 11 4.2.1 General . 11 4.2.2 Origin point and c

19、oordinate axis by internal coordinate 12 4.2.3 Origin point and axis by external coordinate 14 4.2.4 Origin point and axis employing both internal and external coordinates 15 5 Misalignment angle of I/O ports 16 5.1 General . 16 5.2 Misalignment angle of I/O port in edge type . 16 5.3 Misalignment a

20、ngle in surface type I/O port . 18 6 Mirror angle 19 7 Hole . 21 8 Dimensioning system 22 9 Gauges 22 10 Tolerance grade of the OCB . 22 10.1 General . 22 10.2 Shape accuracy of the OCB body of fibre flexible OCB 23 10.3 Position accuracy of the OCB port/I/O port of fibre flexible OCB 23 10.4 Length

21、 accuracy of the OCB tails of fibre flexible OCB 24 Annex A (normative) OCB interfaces 25 Annex B (informative) Example of the OCB 28 Bibliography 30 Figure 1 Examples of shapes of square core (quasi-square made by extrapolation or interpolation) 8 Figure 2 Examples of shapes of circular core . 8 Fi

22、gure 3 Six structural parameters of square core shape of waveguide OCB 9 Figure 4 Example of OCB with end face I/O ports at edge of board 10 Figure 5 Example of OCB with end face I/O type 10 Figure 6 Example of OCB with surface I/O ports 11 Figure 7 Example of OCB with surface I/O ports 11 Figure 8

23、Definition of origin point 1): A specific port is used as the origin point 12 Figure 9 Definition of origin point 2): Determination of an origin point at a place where there is no port (a mid-point of adjacent two ports at the centre of bottom line is used as the origin) 13 62496-4 IEC:2011 3 Figure

24、 10 Definition of the direction of coordinate axis 1): Use the direction of alignment of multiple ports 13 Figure 11 Definition of direction of coordinate axis 2): Along a specific optical circuit (only if the wire is recognizable) 13 Figure 12 Origin point and coordinate axis (1) 14 Figure 13 Origi

25、n point and coordinate axis (2) 14 Figure 14 Origin point and direction of coordinate axis (combination of Figure 12 and Figure 13) . 15 Figure 15 Use of both internal coordinate and external coordinate systems: Internal for the origin point (a specific optical input/output port) and external for th

26、e direction of the axis (dedicated structures) 15 Figure 16 Use of both internal coordinate and external coordinate systems: Internal for the origin point (coordinates of a specific optical input/output port) and external for the direction of the axis (periphery of the board) . 16 Figure 17 Definiti

27、on of misalignment angle of I/O port in edge type 17 Figure 18 Definition of vertical and horizontal rotational misalignment angle of I/O port in edge type . 17 Figure 19 Definition of misalignment angle of I/O port in surface type 18 Figure 20 Definition of longitudinal and lateral misalignment ang

28、le of I/O port in surface type 19 Figure 21 Mirror angle 1 . 19 Figure 22 Mirror angle 2 . 19 Figure 23 Mirror angle 3 . 20 Figure 24 Mirror angle 4 . 20 Figure 25 Mirror tilt angle . 21 Figure 26 Example of optical alignment hole 21 Figure 27 Hole and objects to be measured . 22 Figure 28 Classific

29、ation of shape accuracy of OCB body of fibre flexible OCB . 23 Figure B.1 Example of the fibre flexible OCB . 28 Figure B.2 Origin point and coordinate for the fibre flexible OCB 29 Table 1 The coordinate system, origin point and coordinate axis 12 4 62496-4 IEC:2011 INTERNATIONAL ELECTROTECHNICAL C

30、OMMISSION _ OPTICAL CIRCUIT BOARDS Part 4: Interface standards General and guidance FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to p

31、romote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guid

32、es (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC a

33、lso participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as pos

34、sible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. W

35、hile all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertak

36、e to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attesta

37、tion of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of

38、this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or

39、indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable fo

40、r the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62496-1 has been

41、prepared by IEC technical committee 86: Fibre optics. The text of this standard is based on the following documents: FDIS Report on voting 86/379/FDIS 86/386/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This p

42、ublication has been drafted in accordance with the ISO/IEC Directives, Part 2. 62496-4 IEC:2011 5 A list of all the parts in the IEC 62496 series, under the general title Optical circuit boards, can be found on the IEC website. The committee has decided that the contents of this publication will rem

43、ain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover p

44、age of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 62496-4 IEC:2011 OPTICAL CIRCUIT BOARDS Part 4: Interface standards General and guidance 1

45、Scope This part of IEC 62496 covers general information on the subject of Optical Circuit Board (OCB) interfaces. It includes normative references, definitions and rules for creating and interpreting the standard drawings. 2 Normative references The following referenced documents are indispensable f

46、or the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60793-1-45, Optical fibres Part 1-45: Measurement methods and test procedures Mode field diameter 3

47、 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 General definitions 3.1.1 OCB interface sizes and relative locations for the features comprising the OCB. It also includes the location of the coordinates of the alignment mark 3.1.2 OCB body por

48、tion of an OCB where optical fibres/waveguides are fixed/fabricated to form an optical routing pattern. The typical shape of an OCB body is rectangular 3.1.3 shape of the OCB body outline of the OCB body which consists of a straight line and a curved line NOTE The straight line is defined by coordin

49、ates of start point and end point, and the curved line is defined by the coordinates of the start and the end points of the curve and by radius of curvature. 3.1.4 OCB tail (OCB leg) projection from the OCB body for interconnection with optical fibre cables and/or optical components 3.1.5 length of the OCB tail distance between the edge of an OCB body a