ANSI TIA EIA 455-32A-1990 Fiber Optic Circuit Discontinuities《光纤电路不均匀性》.pdf
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1、 m 3234b00 Ob443b 554 II c TIA/EIA STANDARD ANSI/TIA/EIA-455-32A-1990 Approved: February 21, 1990 Reaffirmed: July 10, 1995 Reaffirmed: October 27, 1999 FOTP-32 Fiber Optic Circuit Discontinuities (Revision of EIA-455-32) APRIL 1990 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Electronic Industrim Allian
2、ce Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.II 3234bOO Ob44370 27b m NOTICE J TIA/EIA Engineering Standards and Publications are designed to serve the public interest th
3、rough 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 particular need. Existence of such Standards and Publications sh
4、all not in any respect preclude any member or nonmember of TWIA 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 by those other than TIA/EN members, whether the standard i
5、s to be used either domestically or internationally. Standards and Publications are adopted by TMIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA/EIA does not assume any liability to any patent owner, nor does it assume any obligation whatever
6、 to parties adopting the Standard or Publication. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determi
7、ne the applicability of regulatory limitations before its use. (From Standards Proposal No. 3805, formulated under the cognizance of the TIA FO-6.3 Subcommittee on Fiber Optic Interconnecting Devices.) This Document was reaffirmed by the American National Standards Institute (ANSI) on July 10,1995 a
8、nd on October 27,1999, and by the TIA. Published by ELECTRONIC INDUSTRIES ALLIANCE Engineering Department 2500 Wilson Boulevard Arlington, VA 22201 TELECOMMUNICATIONS INDUSTRY ASSOCIATION 1990 PRICE: Please refer to current Catalog of PUBLICATIONS or call Global Engineering Documents, USA and Canada
9、 (1-800-854-7179) International (303-397-7956) EIA ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENGINEERING All rights reserved Printed in U.S.A. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without lice
10、nse from IHS-,-,-1111 3234bD0 b44372 049 TABLE OF CONTENTS 1 1.0 INTENT 1 2.0 REFERENCED DOCUMENTS 3.0 TEST EQUIPMENT 1-3 3.1 Optical Source . 1-2 3.2 Transient Detection Equipment 2-3 3 3.3 Transient Calibrator . 4.0 EQUIPMENT CALIBRATION . 3-4 4.1 Transient Calibrator . 3-4 4 4.2 Calibracion Requi
11、rements . 4 5.0 TEST SAMPLE . 6.0 TEST PROCEDURE 4-6 5 7.0 DOCUMENTATION . 6-7 7 8.0 SPECIFYING INFORMATION Table 1 - Discontinuity Conditions a FIGURE 1 - Typical Equipment Configuration . 8 FIGURE 2 - Calibrator Output Signal Tolerance Bands APPENDIX - The Relationship Between Discontinuity Time a
12、nd . Acceleration 9-12 9 11 Figure Al - Relative Axial Misalignment of Two Fibers . Figure A2 - Relationship Between t And T Figure A3 - Relationship Of Discontinuity Time to Applied g Level . 12 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo
13、 reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-326 Page 1 FOTP-32 FIBER OPTIC CIRCUIT DISCONTINUITIES (From EIA StaGdards Proposal No.1893, formulated under the cognizance of TIA FO-6.3, Subcommittee on Fiber Optic Interconnecting Devices, and TIA FO-6.4, Subcommittee
14、 on Fiber Optic Test Methods and Instrumentation. This FOTP is part of the series of test procedures included within Recommended Standard EIA/TIA-455. NOTE: This FOTP was originally published in EIA RS-455-32 as FOTP-32. 1.0 INTENT The intent of this procedure is to provide a method of testing a bro
15、ad variety of passive or active fiber optic components or subsystems for susceptibility to discontinuities (transient output or transmittance fluctuations) during the application of an external stimulus, such as vibration or physical shock. 2.0 REFERENCED DOCUMENTS This test method is intended to be
16、 used in conjunction with one or more of the following test methods, referred to as Primary FOTPs. FOTP-11 (E IA-4 55 -I IA) “Vibration Test Procedure for Fiber Optic Connecting Devices and Cables“ FOTP- 14 (E IA-4 5 5-14 ) “Fiber Optic Shock Test (Specified Pulse) It 3.0 TEST EQUIPMENT (REFER TO FI
17、GURE 1) 3.1 OPTICAL SOURCE 3.1.1 An optical source is required for tests on all components other than emitting devices. Unless otherwise specified in the Detail Specification, the optical source shall have a nominal wavelength of 850 2 30 nm for components employing multimode optical Copyright Telec
18、ommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I 3234600 Ob44374 911 TI AI E IA-45 5 -3 2A Page 2 . fiber, or 1300 f 30 nm for components employing single-mode optical fiber. The source shall
19、 have sufficient amplitude stability for the duration of the primary test to permit adequate determination of discontinuities without false activation of the amplitude threshold limits. The optical source shall substantially overfill the optical fiber used in the test. Multiple sources may be requir
20、ed if several samples are to be monitored simultaneously. 3.1.2 Active devices which can be electrically operated and/or detected so as to produce a constant output amplitude can be tested with this procedure by substituting such device for the optical source or receiver. For an emitter: (a) the wav
21、elength of the test shall be that of the device, and (b) the fiber type and/or coupling method employed shall be reported. For a detector or receiver: the wavelength of the test shall be as specified in 3.1.1 (as appropriate for the detector) and shall be reported. 3.2 TRANSIENT DETECTION EQUIPMENT
22、3.2.1 OPTICAL RECEIVER 3.2.1.1 Means shall be provided to detect the optical power emanating from, or being transmitted through, the device under test, and to linearly convert this power to an electrical signal. The range of optical power over which the optical receiver output is linear shall be def
23、ined by the equipment manufacturer or the user for calibration purposes (see 4.2). It may be necessary to include an electrical or optical attenuator to compensate for variations in received optical power levels. 3.2.1.2 A detector or receiver may be used as the test sample if it meets the requireme
24、nts of 3.2.1.1, and if its output can be appropriately monitored by the transient detection circuitry. The rise and fall times of the detector or optical receiver shall be sufficiently short to register a discontinuity on the transient detector when the specified discontinuity is applied to the opti
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