1、 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 Table of Contents Page Foreword . 2 Intellectual Property 2 1 Scope . 3 2 Conformance Notation . 3 3 Normative References . 3 4 Temperature and Humid
2、ity. 4 5 Optical Fibers . 4 5.1 Single-Mode Optical Fibers 4 5.2 Optical Characteristics . 5 5.3 Color Coding 5 6 Electrical Characteristics 5 6.1 Auxiliary Conductors 5 6.2 Signal Conductors 5 6.3 Overall Braid Shield . 6 6.4 Central Strength Member. 6 7 Mechanical Characteristics 6 7.1 Operating S
3、pecifications 6 7.2 Diameter. 6 8 Cable Marking 7 8.1 Fiber Designation. 7 8.2 Cabling Orientation Designation 7 9 Cable Layout 7 Annex A Bibliography (Informative) . 9 Annex B Safety and Cable Marking (Informative) 10 Page 1 of 10 pages SMPTE 311-2009Revision of SMPTE 311M-2003 SMPTE STANDARD Telev
4、ision Hybrid Electrical and Fiber-Optic Camera Cable SMPTE 311-2009 Page 2 of 10 pages Foreword SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-recognized standards developing organization. Headquartered and incorporated in the United States of America, SMPTE has
5、 members in over 80 countries on six continents. SMPTEs Engineering Documents, including Standards, Recommended Practices and Engineering Guidelines, are prepared by SMPTEs Technology Committees. Participation in these Committees is open to all with a bona fide interest in their work. SMPTE cooperat
6、es 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 Administrative Practices. SMPTE Standard 311 was prepared by Technology Committee 32NF. Intellectual Property At the ti
7、me 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 that some of the elements of this document may be the subject of patent rights. SMPTE shall not be held responsible for ident
8、ifying any or all such patent rights. SMPTE 311-2009 Page 3 of 10 pages 1 Scope This standard describes the minimum performance for a hybrid cable containing single-mode optical fibers and electrical conductors to convey signal and control in a variety of environments where moisture, weather, and oz
9、one resistance are required. This document is not intended to be a cable manufacturing design standard. The cable described in this standard is intended to be used to interconnect cameras and base stations in conjunction with the connectors complying with SMPTE 304M; however, it may be used for othe
10、r applications where appropriate. 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 “may“. Informative text is text that is potentially helpful to the user, but not indispens
11、able, 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: the Introduction, any section explicitly labeled as “Informative“ or individual paragra
12、phs 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“ and “should not“ indicate that, among several possibilities, one is recommended as parti
13、cularly 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 deprecated but not prohibited. The keywords “may“ and “need not“ indicate courses of act
14、ion 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” indicates “reserved” and in addition indicates that the provision will never be defined in th
15、e 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 implementation need not implement optional provisions (“may“) and need not implement them as
16、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 valid. All standards are subject to revision, and parties to agreements based on this st
17、andard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated below. TIA-492B000-1988, Sectional Specification for Class IV Single-Mode Optical Waveguide Fibers TIA-455-162A FOTP-162, Fiber Optic Cable Temperature-Humidity Cycling TIA-455-61 FOTP
18、-61, Measurement of Fiber or Cable Attenuation Using an OTDR TIA-455-33-B FOTP-33, Optical Fiber Cable Tensile Loading and Bending Test TIA-455-37-A FOTP-37, Low or High Temperature Bend Test for Fiber Optic Cable SMPTE 311-2009 Page 4 of 10 pages TIA-455-104-A FOTP-104, Fiber Optic Cable Cyclic Fle
19、xing Test TIA-455-25C FOTP-25, Impact Testing of Optical Fiber Cables TIA-455-41A FOTP-41, Compressive Loading Resistance of Fiber Optic Cables UL1581, sec 1582, Overall Cabling Flex Cycle Rating ITU-T G.657, Characteristics of a Bending Loss Insensitive Single Mode Optical Fibre and Cable for the A
20、ccess Network 4 Temperature and Humidity The cable shall retain the optical and mechanical properties detailed within this standard, over the following conditions: FOTP-162 Temperature: 40C to + 75C for outdoor type cables 20C to + 75C for indoor and permanent installation type cables Humidity: 0 to
21、 95% at 40 C 5 Optical Fibers 5.1 Single-Mode Optical Fibers There shall be two optical fibers. The optical fibers shall conform to TIA-492B000 requirements. Table 1 is shown as reference only. Table 1 Single-mode optical fibers Item Construction Fiber type Single-mode (SM) fiber, non-dispersion shi
22、fted or G.657-class A Bend Insensitive Single-mode fiber Mode field diameter 8.9 .8 micron 1310nm Cladding diameter 125 1 micron Concentricity error 10,000 M km Dielectric strength 20C, 60 Hz, 1 min 1750 VRMS6.1.1 Color Coding 1) Black 2) White 6.2 Signal Conductors There shall be two signal conduct
23、ors (see Table 3). Table 3 Signal conductors Item Conditions Characteristics DC loop resistance 20C 10,000 M km Dielectric strength 20C, 60 Hz, 1 min 1750 VRMSSMPTE 311-2009 Page 6 of 10 pages 6.2.1 Color Coding 1) Red 2) Gray 6.3 Overall Braid Shield The overall braid shield shall be as follows: It
24、em: DC resistance Conditions: 20C Characteristics: 70% 6.4 Central Strength Member The central strength member shall be steel or a material with equivalent tensile and compressive properties. Diameter: 1.0mm 1.8mm 7 Mechanical Characteristics 7.1 Operating Specifications The mechanical characteristi
25、cs shall be in accord with Table 4. Table 4 Mechanical characteristics Item Test method Characteristics Tensile strength FOTP-33 700 N minimum Bending radius FOTP-37 7 diameter 20C Flex UL 1581, sec 1582 FOTP-104 15000 cycles, 10 cable diameter maximum 1000 cycles, 10 cable diameter maximum Impact F
26、OTP-25 20 cycles 5.88 N Crush (compression) FOTP-41 180 kg over 10 cm 7.2 Diameter The overall nominal diameter shall be 9.2 mm, 12 mm or 16 mm (16 mm consisting of 9.2-mm inner jacket with up-jacketed 16-mm outer jacket). SMPTE 311-2009 Page 7 of 10 pages 8 Cable Marking 8.1 Fiber Designation The f
27、ollowing information shall appear at regular intervals throughout the entire length of the finished cable. Other information may be added if it does not confuse or mislead. the wording “single-mode“ the wording “SMPTE 311” the wording “G657A” for cables constructed with bend insensitive fiber If the
28、 fiber coating is not acrylate, a marking in accordance with Section 5.1 8.2 Cabling Orientation Designation The following information should appear at regular intervals throughout the entire length of the finished cable arrow or similar directional marking together with the words “TO CAMERA”. The a
29、rrow should point to the plug end of the cable (see Section 9, Figures 1, 2 and 3). 9 Cable Layout The cable should have one of the layouts shown in Figures 1, 2 and 3. Figure 1 Configuration for 2 auxiliary conductor cable types (Plug end) SMPTE 311-2009 Page 8 of 10 pages Figure 2 Configuration fo
30、r 4 auxiliary conductor cable types (Plug end) Figure 3 Configuration for 8 auxiliary conductor cable types (Plug end) SMPTE 311-2009 Page 9 of 10 pages Annex A (Informative) Bibliography SMPTE 304-2009, Television Broadcast Cameras Hybrid Electrical and Fiber-Optic Connector NFPA 70-2008, National
31、Electrical Code UL 62-2001, Flexible Cord and Fixture Wire UL 444-2002, Communications Cables UL AWM 20907, Professional Video Interconnecting Cable SMPTE 311-2009 Page 10 of 10 pages Annex B (Informative) Safety and Cable Marking This cable may require certification, classification, or listing, und
32、er the requirements of the NEC, CEC, UL, CSA or similar authorities, appropriate to the intended application. Such requirements may include, but are not limited to, voltage, current, flammability, and environment. This cable may require marking with the applicable UL, CSA or other authorities designations.
