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    SMPTE ST 304-2009 Television Broadcast Cameras Hybrid Electrical and Fiber-Optic Connector.pdf

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    SMPTE ST 304-2009 Television Broadcast Cameras Hybrid Electrical and Fiber-Optic Connector.pdf

    1、 SMPTE 304-2009Revision of SMPTE 304M-2003 SMPTE STANDARD Television Broadcast Cameras Hybrid Electrical and Fiber-Optic ConnectorPage 1 of 15 pages Table of Contents Page Foreword . 2 Intellectual Property 2 Introduction . 2 1 Scope . 3 2 Conformance Notation . 3 3 Normative References . 3 4 Connec

    2、tor Specifications . 4 4.1 Structural Requirements 4 4.2 Contact Requirements . 4 4.3 Classifications 4 4.4 Field Serviceability . 4 5 Mechanical Interface Dimensions 4 5.1 Mating Interface Dimensions . 4 5.2 Shell Keying and Color Coding 4 5.3 Contact Arrangements . 5 6 Performance. 5 7 Safety . 5

    3、Annex A Bibliography (Informative) 15 Copyright 2009 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 3 Barker Avenue, White Plains, NY 10601 (914) 761-1100 Approved June 4, 2009 SMPTE 304-2009 Foreword SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-rec

    4、ognized standards developing organization. Headquartered and incorporated in the United States of America, SMPTE has members in over 80 countries on six continents. SMPTEs Engineering Documents, including Standards, Recommended Practices and Engineering Guidelines, are prepared by SMPTEs Technology

    5、Committees. Participation in these Committees is open to all with a bona fide interest in their work. SMPTE cooperates closely with other standards-developing organizations, including ISO, IEC and ITU. SMPTE Engineering Documents are drafted in accordance with the rules given in Part XIII of its Adm

    6、inistrative Practices. SMPTE Standard 304 was prepared by Technology Committees S22 and 32NF. Intellectual Property At the time of publication no notice had been received by SMPTE claiming patent rights essential to the implementation of this Standard. However, attention is drawn to the possibility

    7、that some of the elements of this document may be the subject of patent rights. SMPTE shall not be held responsible for identifying any or all such patent rights. Introduction This section is entirely informative and does not form an integral part of this Engineering Document. The product described

    8、within this updated version of the standard is fully backward compatible with all products that complied with previous versions of the Standard. Page 2 of 15 pages SMPTE 304-2009 1 Scope This standard defines a connector primarily intended for use in television broadcasting and video equipment, such

    9、 as camera head to camera control-unit connections. It defines hybrid connectors, which contain a combination of electrical contacts and fiber-optic contacts for single-mode fibers. It also contains dimensional tolerances which ensure nondestructive mating of the electrical and optical interfaces, a

    10、nd functional operability of the electrical interface. Functional operability of the optical interface is dependent upon fiber preparation and termination and is, therefore, not guaranteed by this standard. The connector described in this standard is intended for use primarily with the hybrid fiber

    11、optic camera cable described in SMPTE 311; however, this connector may be used independently to meet other requirements. 2 Conformance Notation Normative text is text that describes elements of the design that are indispensable or contains the conformance language keywords: “shall“, “should“, or “ma

    12、y“. Informative text is text that is potentially helpful to the user, but not indispensable, and can be removed, changed, or added editorially without affecting interoperability. Informative text does not contain any conformance keywords. All text in this document is, by default, normative, except:

    13、the Introduction, any section explicitly labeled as “Informative“ or individual paragraphs that start with “Note:” The keywords “shall“ and “shall not“ indicate requirements strictly to be followed in order to conform to the document and from which no deviation is permitted. The keywords, “should“ a

    14、nd “should not“ indicate that, among several possibilities, one is recommended as particularly suitable, without mentioning or excluding others; or that a certain course of action is preferred but not necessarily required; or that (in the negative form) a certain possibility or course of action is d

    15、eprecated but not prohibited. The keywords “may“ and “need not“ indicate courses of action permissible within the limits of the document. The keyword “reserved” indicates a provision that is not defined at this time, shall not be used, and may be defined in the future. The keyword “forbidden” indica

    16、tes “reserved” and in addition indicates that the provision will never be defined in the future. A conformant implementation according to this document is one that includes all mandatory provisions (“shall“) and, if implemented, all recommended provisions (“should“) as described. A conformant implem

    17、entation need not implement optional provisions (“may“) and need not implement them as described. 3 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were v

    18、alid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated below. SMPTE 311-2009, Television Hybrid Electrical and Fiber-Optic Camera Cable IEC 60950-1 (200

    19、5-12), Information Technology Equipment Safety Part 1: General Requirements Page 3 of 15 pages SMPTE 304-2009 4 Connector Specifications 4.1 Structural Requirements The connector system shall consist of a plug-and-jack arrangement. It shall feature a push-pull quick connect/disconnect coupling mecha

    20、nism. The plug shall be identified by a color-code marking. Each connector shall contain two keyed fiber-optic contacts, with cylindrical spherical butting ferrules. The ferrules shall be ceramic and the optical alignment mechanism shall be a ceramic split sleeve contained in the contacts on the plu

    21、g. Appropriate dust caps for all connector configurations shall be used as protection against contamination during unmated situations. 4.2 Contact Requirements The connectors shall house two fiber-optic contacts, two auxiliary electrical contacts, and two low-voltage contacts. 4.3 Classifications Co

    22、nnectors covered by this part shall be classified as: Name: Hybrid connectors Coupling: Push pull Configurations: o Cable plug (to mate with connector on camera) color coded for identification; o Cable jack (to mate with base station); o Jack, panel mount (installed on camera); o Plug, panel mount (

    23、installed on base station). o Cable Jack, panel mount( installed on patch panels ) o Cable plug , panel mount ( installed on studio wall boxes / OB vans) Note: Other styles of connector with other back-end mounting arrangements are available and are fully intermateable with the variants above. 4.4 F

    24、ield Serviceability The connectors shall be designed to permit field termination, replacement, and repair by trained personnel, using assembly instructions supplied by the connector manufacturer, and with the appropriate tooling. 5 Mechanical Interface Dimensions 5.1 Mating Interface Dimensions The

    25、mating interface dimensions for each connector configuration (plug and jack) shall be in accordance with Figures 1 and 2 and Tables 1 and 2. All dimensions are metric. 5.2 Shell Keying and Color Coding The connectors shall have polarization keys in accordance with Figures 3 and 4 and Tables 3 and 4.

    26、 The shells shall have a red color coding. Page 4 of 15 pages SMPTE 304-2009 5.3 Contact Arrangements The contacts shall be located in accordance with Figure 7. 6 Performance The connectors shall meet the following minimum requirements: Optical: Wavelength: 1250 nm 1625nm Insertion loss: 0.5 dB maxi

    27、mum Return loss: Better than 45 dB Note: Prior versions of this standard specified wavelengths down to 1100nm. Electrical: Auxiliary electrical contacts: Voltage: 600 V ac Current: 10 A Low-voltage contacts: Voltage: 42 V ac or 60 V dc Current: 1 A Environmental: Temperature: 40C to +75C Humidity: 0

    28、 % to 95% RH (at +40C) Note: The degree of waterproofing is left for manufacturing implementation. 7 Safety The design of the connectors shall meet the requirements of IEC-60950-1, 2nd edition, Information Technology Equipment Safety Part 1: General Requirements. Page 5 of 15 pages SMPTE 304-2009 Fi

    29、gure 1 Plug mating interface Page 6 of 15 pages SMPTE 304-2009 Table 1 Plug mating dimensions Specifications (mm) Dimensions Minimum Nominal Maximum Description A / Split sleeve inside diameter 1)B 11.0 / 11.25 Connector shell to reference plane C 8.70 4)/ 10.17 Split sleeve to reference plane D 9.0

    30、 4)/ 9.4 Insert dimension F 6.8 4)/ 7.15 Shell dimension G 3.25 / 3.89 Optical to mechanical reference plane 2)H 7.0 / 8.9 Low-voltage contact location J 1.999 / 2.0 Diameter of optical ferrule K 0.87 / 0.9 4)Low-voltage contact inside diameter L 1.3 / 2.0 Split sleeve to reference plane M 1.27 / 1.

    31、3 Auxiliary electrical contact outside diameter N 3.05 / 3.1 Insert inside diameter for auxiliary electrical contact P 3.1 / 4.3 Auxiliary electrical contact location Q 2.48 4)/ 2.52 4)Split sleeve outside diameter R 4.48 / 4.55 Insert dimension T 12.97 / 13.05 Shell inside diameter U 17.95 / 18 She

    32、ll outside diameter V 19.35 / 19.6 Latch outside diameter X 0.8 4)/ 1.2 Latch dimension Y 27 / 33 Latch dimension Z 0.6 4)/ 2.4 Low-voltage contact depth AA 0.76 / 0.83 4)Amount of movement on the latching sleeve AB 5.3 Optical contact location3)AC 6.9 Auxiliary electrical contact location3)AD 8.4 L

    33、ow-voltage contact location3)AE 9630 Auxiliary electrical contact location 3)AF 55 Low-voltage contact location 3)1) The connector alignment feature is a split sleeve. The feature shall accept a gage pin with dimensions of 1.9995 2.0000 to the center of the alignment device with a force of 1.46 -3.4

    34、2N under the condition that another gage pin in inserted into the feature from the other side”. 2)Dimension G is given for a ferrule end face center of a plug end when not mated. To mate the ferrule must be movable by a certain axial compression force; therefore the dimension G is variable. Ferrule

    35、compression force shall be 3 N to 8 N when the compressed position of the ferrule end face is in the range of 0.1 mm to 0.6 mm. 3) The position of the contacts within the connector is related to the insert dimensions given in Fig 5, nominal values are provided here for reference purposes. However th

    36、e manufacture of the connector shall be such that there is a minimum of 4 degrees of float to allow the contacts to take up their correct position during mating. 4)This value is given to document existing designs only; it is not normative and need not be met to ensure conformance to this standard. P

    37、age 7 of 15 pages SMPTE 304-2009 Figure 2 Jack mating interface Page 8 of 15 pages SMPTE 304-2009 Table 2 Jack mating dimensions Specifications (mm) Dimensions Minimum Nominal Maximum Description A 1.95 / 2.15 3)Latch groove dimension B 8.45 / 8.55 Groove location C 7.35 / 7.65 Grounding crown dimen

    38、sion D 7.73 / 8.93 Insert dimension E 7.7 / 7.85 3)Auxiliary electrical contact depth F 10.27 / 11.0 3)Insert dimension G 11.35 / 11.7 Shell depth H 2.66 / 3.10 Optical to mechanical reference plane 1)J 2.97 / 3.85 Low-voltage contact location K 0 / 1.0 Auxiliary electrical contact location M 1.999

    39、/ 2.0 Diameter of optical ferrule N 3.0 3)/ 3.2 Insert inside diameter P 2.9 3)/ 2.95 Insert dimension Q 0.86 / 0.90 Low-voltage contact outside diameter R 10.33 / 10.9 Insert location S 10.9 / 11.9 Insert outside diameter T 13.02 / 13.05 Grounding crown outside diameter U 18.1 / 18.14 Shell inside

    40、diameter V 19.7 / 19.9 3)Latch groove diameter W 1.27 / 1.33 3)Auxiliary electrical contact inside diameter X 27 / 33 Latch dimension Y 0.1 / 1.1 Insert dimension AB 5.3 Optical contact location2)AC 6.9 Auxiliary electrical contact location2)AD 8.4 Low-voltage contact location2)AE 9630 Auxiliary ele

    41、ctrical contact location 2)AF 55 Low-voltage contact location 2)1)Dimension H is given for a ferrule end face center of a plug end when not mated. To mate the ferrule must be movable by a certain axial compression force; therefore the dimension H is variable. Ferrule compression force shall be 3 N t

    42、o 8 N when the compressed position of the ferrule end face is in the range of 0.1 mm to 0.6 mm. 2) The position of the contacts within the connector is related to the insert dimensions given in Figure 6. Nominal values are provided here for reference purposes. However the manufacture of the connecto

    43、r shall be such that there is a minimum of +/- 4 degrees of float to allow the contacts to take up their correct position during mating 3)This value is given to document existing designs only; it is not normative and need not be met to ensure conformance to this standard. Page 9 of 15 pages SMPTE 30

    44、4-2009 Section A- Figure 3 Plug key arrangement Table 3 Plug key dimensions Specifications (mm) Dimensions Minimum Nominal Maximum BG 2.38 / 2.43 BH / 95 030 / BJ 115 030 BN 18.95 / 19 BP 3.3 3.5 BQ / 145 030 / BR 1.78 / 1.83 Page 10 of 15 pages SMPTE 304-2009 Section A- Figure 4 Jack key arrangemen

    45、t Table 4 Jack key dimensions Specifications (mm) Dimensions Minimum Nominal Maximum BG 2.02 / 2.07 BH / 95 030 / BJ 115 030 BK 18.55 / 18.75 BL 5.35 / 5.65 BM / 145 030 / BN 2.52 / 2.57 Page 11 of 15 pages SMPTE 304-2009 Note: Figure viewed from front face. Figure 5 Plug insert arrangement (Informa

    46、tive) Table 5 Plug insert dimensions (Informative) Specifications (mm) Dimensions Minimum Nominal Maximum Description BA 6.895 / 6.905 Auxiliary electrical contact BB 6 2 6 / 6 3 4 BC 34 5 6 / 35 4 BE 5.295 / 5.305 Fiber-optic contact BF 8.395 / 8.405 Low-voltage contact Page 12 of 15 pages SMPTE 30

    47、4-2009 Note: Figure viewed from front face. Figure 6 Jack insert arrangement (Informative) Table 6 Jack insert dimensions (Informative) Specifications (mm) Dimensions Minimum Nominal Maximum Description BA 6.895 / 6.905 Auxiliary electrical contact BB 6 2 6 / 6 3 4 BC 34 5 6 / 35 4 BE 5.295 / 5.305

    48、Fiber-optic contact BF 8.395 / 8.405 Low-voltage contact Page 13 of 15 pages SMPTE 304-2009 Note: Figure viewed from front face. Figure 7 Pin out wiring diagrams Page 14 of 15 pages SMPTE 304-2009 Page 15 of 15 pages Annex A (Informative) Bibliography ARIB BTA S-1005B, Interconnection for HDTV Studio Equipment. ARIB Technical Report (Japanese Only) IEC 60793-1-1 (2008-04), Optical Fibers Part 1-1: Measurement Methods and Test Procedures General and Guidance IEC 60874-1 (2006-10), Connectors for Optical F


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