TIA 标准 TIA-TSB62-5-1995-R2001.pdf
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1、TIA/EIA TELECOMMUNICATIO SYSTEMS BULLETIN VS ITM-5 Characterization of Attenuation Uniformity of Optical Fibers TSB62-5 AUGUST 1995 (Reaffirmed September 2001) TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Telmmmmicationu Indwtry Association repramis the nnimunicatiom wdor of Electronic indu6tries All
2、iance Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:03:07 MDTNo reproduction or networking permitted without license from IHS -,-,- NOTICE TIA/EIA Engineering Standards and Pu
3、blications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particula
4、r need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of TIA/EIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications preclude their voluntary use
5、by those other than TIA/EIA members, whether the standard is to be used either domestically or internationally. Standards, Publications and Bulletins are adopted by EIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA/EIA does not assume any liab
6、ility to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard, Publication, or Bulletin. Technical Bulletins are distinguished from TIA/EIA Standards or Interim Standards, in that they contain a compilation of engineering data or information useful to the tec
7、hnical community, and represent approaches to good engineering practices that are suggested by the formulating committee. This Bulletin is not intended to preclude or discourage other approaches that similarly represent good engineering practice, or that may be acceptable to, or have been accepted b
8、y, appropriate bodies. Parties who wish to bring other approaches to the attention of the formulating committee to be considered for inclusion in future revisions of this Bulletin are encouraged to do so. It is the intention of the formulating committee to revise and update this Bulletin from time t
9、o time as may be occasioned by changes in technology, industry practice, or government regulations, or for other appropriate reasons. (From Project No. 3-3440-RF1, formulated under the cognizance of the TIA FO-6 Committee on Fiber Optics and the TIA FO-6.6 Subcommittee on Optical Fibers.) This Docum
10、ent was reaffirmed by the Telecommunications Industry Association on September 14,2001. Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 1995 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 PRICE: Please refer to the current Catalog of ELECTRONIC INDUSTRIES ALLIANCE
11、 STANDARDS and ENGINEERING PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) All rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001,
12、User=Wing, Bernie Not for Resale, 03/29/2007 21:03:07 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:0
13、3:07 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:03:07 MDTNo reproduction or networking permitted w
14、ithout license from IHS -,-,- ITM 5 Characterization of Attenuation Uniformity of Optical Fiber CONTENTS 1 . Introduction . 1 2 . Normative references 2 3 . Apparatus 3 4 . Sampling and specimens 4 5 . Procedure 8 7 . Documentation 18 6 . Calculations and interpretation of results . 9 . Annex A Trea
15、tment of end effects . 19 Annex B GSW Algorithms 21 Annex C Filter definition and evaluation . 24 Annex D Applications . 30 Annex E Comparison with IEC or ITU tests . 32 I Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=
16、Wing, Bernie Not for Resale, 03/29/2007 21:03:07 MDTNo reproduction or networking permitted without license from IHS -,-,- E I A TSB62-5 95 3234600 0562806 T4 TINE IA-TSB-62-5 This page left blank. II Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IH
17、S Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:03:07 MDTNo reproduction or networking permitted without license from IHS -,-,- TI NE I A-TS B-6 2- 5 ITM 5 Characterization of Attenuation Uniformity of Optical Fiber Foreword This document comes from TIA Project No. 3440, and
18、was formulated under the cognizance of TIA FO-6.6 Subcommittee on Optical Fibers and Cables, and TIA FO-6.6.5, Working Group on Single-mode Measurements of Optical Fiber. This ITM is part of the series of informative test methods included within TINEIA TSB-62. There are five annexes, all of which ar
19、e informative. Key words: attenuation, uniformity, OTDR, . III Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:03:07 MDTNo reproduction or networking permitted without license f
20、rom IHS -,-,- EIA TSBb2-5 95 m 3234600 0562832 241 m TINE IA-TSB-62-5 This page left blank. iv Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 21:03:07 MDTNo reproduction or networ
21、king permitted without license from IHS -,-,- E I A TSBb2-5 95 W 3234600 0562830 477 W ITM-5 Characterization of Attenuation Uniformity of Optical Fiber 1 Introduction 1.1 Intent This document is intended to extend the use of OTDRs, see FOI rs 59, 60, and 61, to quantitatively characterize the unifo
22、rmity of the attenuation coefficient of optical fibers. Each has particular utility under certain circumstances but none can be considered as universally optimal. The choice of a particular method will depend on details of the agreement between the buyer and seller. Several methods are defined in th
23、is document. 1.2 Scope This document is restricted to the use of bi-directional OTDR traces which are required for accurate attenuation values. The document defines terminology that is used to describe several methods of characterizing attenuation uniformity. It outlines some of the details about id
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