1、 TIA-455-15-A-1992 APPROVED: JANUARY 24, 1992 REAFFIRMED: OCTOBER 29, 2002 REAFFIRMED: FEBRUARY 6, 2013 TIA-455-15-A (Revision of EIA-455-15) March 1992FOTP- 15 Altitude/Immersion of Fiber Optic Components NOTICE TIA Engineering Standards and Publications are designed to serve the public interest th
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5、on. 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 determine the applicability of regulatory limitations
6、 before its use. (From Project No. 3-2364-RV1-RF2, formulated under the cognizance of the TIA TR-42 Telecommunications Cabling Systems, TR-42.12 Subcommittee on Optical Fibers and Cables). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Technology (b) there is no assurance that the Document wil
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19、 THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. EIA TIA-455-15A 92 m 3234600 0501128 O W ! Section 1. 2. 3. 4. 5. 6. 7. 8. APPENDIX FOTP-15 ALTITUDE/IMMERSION OF FIBER OPTIC COMPQNENTS TABLE OF CONTENTS INTRODUCTION APPLICABLE DOCUMENTS APP
20、ARATUS SAMPLING AND SPECIMENS PROCEDURE CALCULATIONS OR INTERPRETATION OF RESULTS DOCUMENTATION SPECIFICATION INFORMATION COMPARISON BETWEEN FOTP-15 AND IEC, ISO, AND CGITT REQUIREMENTS Paqe 1 2 3 4 7 8 P T NOTE : EIA TIA-455-15A 92 m 3234600 0501329 2 m 1 EIA/TIA-455-15A Page 1 FOTP-15 ALTITUDE/IMM
21、ERSION OF FIBER OPTIC COMPONENTS (From EIA Standards Proposal No. 2364, formulated under the cognizance of TIA FO-6.3, Subcommittee on Fiber Optic Interconnecting Devices, and TIA FO-6.4, Subcommittee on Fiber Optic Test Methods and Instrumentation.) This FOTP is part of the series of test procedure
22、s included within Recommended Standard EIA/TIA-455. This FOTP was originally published in EIA RS-455-15 as FOTP-15. 1. INTRODUCTION 4 1.1 Intent. I The intent of this test is to demonstrate the ability of a fiber optic component device-to-cable attachment(s), and any interface area of mated componen
23、t device seals, to perform satisfactorily during, and subsequent to, simulated rapid descents from high altitude, with attendant moisture condensation. Typically, fiber optic interconnecting devices are most commonly tested by this method, but the methodology can be applied to various other types of
24、 fiber optic components. 1.2 Alternative Method. This test is similar to that prescribed by FOTP-190, except that specimens tested under FOTP-190 are not immersed in water during low pressure exposure. Also, FOTP-190 provides a wider choice of test pressures than does FOTP-15. This method is similar
25、 to Method 1004.1 of MIL-STD-1344. However, the MIL-STD requires immersion in a salt solution, while thismethod uses distilled water immersion only. EIA TIA-455-15A 92 = 3234600 0502130 j EIA/TIA-455-15A Page 2 1.3 Failure Mdes. The potential failure modes for this test include, but are not limited
26、to: a. Unacceptable changes in optical transmittance, b. Unacceptable changes in insertion loss, c. Unacceptable changes in return loss, d. Damage to device seals., e. Other failure modes (such as changes in engagement and separation forces) may be specified by the Detail Specification. 2. APPLICABL
27、E DoCMENTS The following documents form a part of this FOTP to the extent specified herein: EIA/TIA-455-A “Standard Test Procedures for Fiber Optic Fibers, Cables, Transducers, Sensors, Connecting and Terminating Devices, and Other Fiber Optic Components“ FOTP-13 (EIA-455-13) Visual and Mechanical I
28、nspection of Fiber, Cables, Connectors and/or Other Fiber Optic Devices“ FOTP-20 (EIA/TIA-455-20A) “Measurement of Change in Optical Transmittance“ FOTP-34 (EIA/TIA-455-34A) “Interconnection Device Insertion FOTP-107 (EIA/TIA-455-107) “Return Loss for Fiber Optic FOTP-190 (EIA/TIA-455-190) “Low Air
29、Pressure (High Altitude) Loss Test“ Componentsf1 Testing of Fiber Optic Components“ In process of preparation. Pending publication of this revision, use EIA RS-455-20. In process of preparation. Pending publication of this revision, use EIA-455-34. .r EIA TIA-455-15A 92 m 3234b00 0501131 O m - _ EI
30、MIL-STD-13 4 4A4 “Test Methods for Connec tors U /TI- -455-1 SA Page 3 Electrical Method 1004.1 “Altitude Immersionf1 3. APPARATUS The following apparatus and equipment is required to perform this test: 3.1 Altitude Chamber. Use an appropriate altitude test chamber consisting of a suitable sealed ch
31、amber which has means for visual observation of the specimen under test, when necessary. 3.2 Vacuum Pump. The test chamber pressure shall be reduced by t means of vacuum pump equipment which is capable of maintaining the reduced pressures as given in 5.3, or other, as required, with a tolerance of t
32、hen dry the specimens completely by exposing them to room ambient conditions for 20 to 24 hours, or by drying them in a circulating air oven at 48.9 & 2.8 OC for 2 to 3 hours. 5.6 Final Inspection. After drying, repeat the visual and physical examination of each specimen (as performed in 5.1) in acc
33、ordance with FOTP-13, checking especially for (a) deterioration of moisture seals, (b) evidence of foreign deposits on connector interfaces. Record observations. EIA TIA-455-15A 92 3234b00 0501134 b I EIA/TIA-455-15A Page 6 6. CALCULATIONS OR INTERPRETATION OF RESULTS 6.1 Calculations. Perform calcu
34、lations as specified by any required optical test (FOTP-20, FOTP-34, FOTP-107, etc.). 6.2 Precision. The altitude-immersion test method has been in use for many years, but no statement for precision has been made and no activity is planned to develop such a statement. Precision of optical measuremen
35、ts is as given by the specified measurement FOTP. 6.3 Bias. A statement of bias is not possible due to a lack of a standard reference material. 7. DOCUMENTATION 7.1 Report the following information for each test: 7.1.1 Date of test. 7.1.2 Identification (name and number) of procedure used. 7.1.3 Spe
36、cimen identification. Include fixture, if applicable. 7.1.4 Values and observations: 7.1.4.1 Chamber pressure, temperature, and duration of each cycle, 7.1.4.2 Optical test data, before and after altitude immersion. 7.1.4.3 Results of visual examination. 7.2 United States military applications requi
37、re that the following information also be reported for each test. For other (non-military) applications, this information need not be reported but shall be available for review upon request. 7.2.1 Test equipment used and date of latest calibration. P 7.2.2. Test personnel. ! EIA TIA-455-15A 92 m 323
38、4b00 0501135 8 m I EIA/TIA-455-15A Page 7 8. SPECIFICATION INFORMATION The following information shall be specified in the Detail Specification: 8.1 8.2 8.3 Component accessories. Any support hardware to be installed on the specimen during test. A reference to this test procedure if it is to be used
39、. Exceptions or deviations that apply to this test procedure. 8.4 test. Part number or description of cable/fiber to be used in the 8.5 Initial optical performance limits permitted, if any. 8.6 Acceptance or failure criteria: physical/visual, and optical. EIA TIA-455-15A 92 = 3234b00 050LL3b T = EIA
40、/TIA-455-15A Page 8 APPENDIX COMPARISON BETWEEN FOTP-15 AND IEC, ISO, AND CCITT REQUIRE“TS (Nonmandatory Information) A.l IEC It should be noted that, as of this publication date, there are no known IEC test methods that are comparable to this FOTP. It should be noted that, as of this publication da
41、te, there are no known IS0 test methods that are comparable to this FOTP. A.3 CCIiT It should be noted that, as of this publication date, there are no known CCITT test methods that are comparable to this FOTP. THE TELECOMMUNICATIONS INDUSTRY ASSOCIATION TIA represents the global information and comm
42、unications technology (ICT) industry through standards development, advocacy, tradeshows, business opportunities, market intelligence and world-wide environmental regulatory analysis. Since 1924, TIA has been enhancing the business environment for broadband, wireless, information technology, cable, satellite, and unified communications. TIA members products and services empower communications in every industry and market, including healthcare, education, security, public safety, transportation, government, the utilities. TIA is accredited by the American National Standards Institute (ANSI).
