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