1、4 1 Coupling Proof Overload Test for TIA/EIA STANDARD Fiber Optic Interconnecting Devices 3234600 Ob44419 90T - -i1111-1 -Na1 ANSI/TIA/EIA-455-184-1991 Approved: May 3, 1991 Reaffirmed July 10, 1995 Reaffirmed October 14, 1999 I TIA/EIA-455-184 FOTP-184 MAY 1991 TELECOMMUNICATIONS INDUSTRY ASSOCIATI
2、ON TE ECOMMUNiCATiNS Reprenting the iekcommuniatiom industry in association with the Elcaronic industria Aiancr Electronic Industries Alliance Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license
3、 from IHS-,-,-3234600 0644420 621 = NOTICE TIA/ELA Engineering Standards and Publications 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
4、selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publications shall 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 th
5、e existence of such Standards and Publications preclude their voluntary use by those other than TIA/EIA members, whether the standard is to be used either domestically or internationally. Standards and Publications are adopted by TIAEM in accordance with the American National Standards Institute (AN
6、SI) patent policy. By such action, TMIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication. This Standard does not purport to address all safety problems associated with its use or ail applicable regulatory re
7、quirements. 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 before its use. (From Standards Proposal No. 3803, formulated under the cognizance of the TIA FO-6.3 Subcommittee on Fib
8、er Optic Interconnecting Devices) This document was reaffirmed by the American National Standards Institute (ANSI) on July 10,1995 and October 14,1999, and by the TIA. Published by ELECTRONIC INDUSTRIES ALLIANCE Engineering Department 2500 Wilson Boulevard Arlington, VA 22201 TELECOMMUNICATIONS INDU
9、STRY ASSOCIATION 1991 PRICE: Please refer to current Catalog of PUBLICATIONS or call Global Engineering Documents, USA and Canada (1-800-854-7179) International (303-397-7956) EIA ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENGINEERING All rights reserved Printed in U.S.A. Copyright Telecommunicati
10、ons Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-323Yb00 Ob44422 4T4 II EIAITIA-455- 184 Page 1 FOTP-184 COUPLING PROOF OVERLOAD TEST FOR FIBER OPTIC INTERCONNECTING DEVICES (From EM Standards Proposal N
11、o. 2237, 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 procedures included within Recommended Standard EIAITIA-455. 1. INTRODUC
12、TION The intent of this procedure is to apply an overload torque to twist-type coupling mechanisms. The procedure is applicable to threaded or bayonet twist-type coupling mechanisms. The purpose of the procedure is to establish a safety factor or minimum level of reliability for the overload torque
13、capabilities of twist-type and threaded coupling mechanisms. 2. APPLICABLE DOCUMENTS Test or inspection requirements may include, but are not limited to, the following references: E JA/ TIA- 4 5 5A FOTP- 13(EIA-455- 13) IEC-874-1(3r d.Ed.) “Standard Test Procedures for Fiber Optic Fibers, Cables, Tr
14、ansducers, Sensors, Connecting and Terminating Devices, and Other Fiber Optic Components“ “Visual and Mechanical Inspection of Fiber, Cables, Connectors and/or Other Fiber Optic Devices“ “Connectors for Optical Fibers and Cables, Part 1, Generic Specific at ion 1. In process of preparation. Pending
15、publication of this revision, USC EIA/RS-455. 2. In process of preparation. Pending publication of this revision use IEC SC86BCO69 dated 22 August 1989. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted witho
16、ut license from IHS-,-,-W 3234h00 Ob44423 330 W EIA/TIA-455- 184 Page 2 3. APPARATUS The assembled test apparatus shall be capable of applying a torque, either manually or automatically, to a threaded or bayonet- type coupling nut while the connector adapter is held in place. Figure 1 shows a typica
17、l apparatus for applying the torque manually. All or some of the following apparatus components are required for either manual or automatic testing. 3.1 always held in the proper relationship during the test. STAND. Use a stand to insure that the specimen and the torque applicator are 3.2 SPECIMEN H
18、OLDER. The specimen holder shall be a floating device to which the specimen under test is mounted, The holder shall be prohibited from rotating, but shall otherwise be capable of moving freely in order to obtain the proper alignment between the coupling and the test specimen. 3.3 COUPLING. Couplings
19、 shall be designed to mate with the appropriate specimen under test. The coupling shall clamp the outer shell of the specimen under test in such a manner that the torque is applied orthogonally to the coupling interface without the presence of any bending moment. 3.4 applicator to the specimen under
20、 test through the coupling. COUPLING SHAFT. A coupling shaft shall be utilized to connect the torque 3.5 ALIGNMENT MECHANISM. An alignment mechanisms function is to ensure that the coupling shaft is always in the proper position relative to the test specimen. A clearance hole or a simple sleeve bear
21、ing will usually be satisfactory. 3.6 TORQUE APPLICATOR AND GAUGE. Torque shall be applied using a torque wrench, or equivalent, and a gauge, having a torque range no greater than three times the required torque test value. A maximum-reading torque indicator is desirable, but not required. The gauge
22、 shall be accurate within 10 percent at the applied torque value. 4. SAMPLING AND SPECIMENS 4.1 SAMPLING. Unless otherwise specified in the Detail Specification, select the test specimens randomly from the lot(s) being. tested and according to the schedule in the Detail Specification. Copyright Tele
23、communications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3234600 Ob44424 277 0 EIA/TIA-455- 184 Page 3 4.2 SPECIMENS. Unless otherwise specified in the Detail Specification, each test specimen shall b
24、e one of the following: (a) a plug-adapter-plug combination for connectors, or (b) a plug-adapter for device adapters. Unless otherwise specified, each specimen shall be assembled according to the manufacturers instructions. The inclusion of fiber and cable is optional. 5. PROCEDURE 5.1 PRECONDITION
25、ING. Unless otherwise specified in the Detail Specification, precondition each prepared specimen for a period of 4 hours at the standard test conditions specified in EIA/TIA-455A. 5.2 SPECIMEN MOUNTING. Securely mount each specimen under test to the specimen holder using the connectors normal config
26、uration mounting. Connectors which are normally free-floating shall be mounted to the connector holder such that the torque will be applied along the proper axis of the connector. 5.3 CONNECTION TO TORQUE APPLICATOR AND GAUGE. Connect the torque applicator to the connector coupling nut through the c
27、oupling, coupling shaft and alignment mechanism. 5.4 TORQUE LOADING. Using the torque applicator, smoothly apply the specified torque to the coupling nut at a nominal rate such that there is no element of impact loading. Unless otherwise specified, maintain the torque for a minimum period of 15 seco
28、nds. 5.5 POST TEST EXAMINATION. Remove the torque load and remove the test specimen from the mounting. Unless otherwise specified, visually examine specimens and their component parts in accordance with the requirements of FOTP-13. Check for evidence of cracking, bending or permanent deformation to
29、any of the coupling features (e.g., tabs slots, threads). Check for other damage which might impair its function, and any pass/fail criteria that may be specified in the Detail Specification. 6. CALCULATIONS OR INTERPRETATION OF RESULTS (Not Required) Copyright Telecommunications Industry Associatio
30、n Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-E 3234b00 Ob44425 LO3 W Em/ TIA-455- 184 Page 4 7. DOCUMENTATION 7.1 Report the following information for each test: 7.1.1 Date of test, 7.1.2 7.1.3 Test results, 7.1.4 Deviatio
31、ns from prescribed test procedure. 7.2 United States military applications require that the following information also be reported for each test. For other applications (non-military), this information need not be reported, but shall be available for review upon request: 7.2.1 Test personnel, 7.2.2
32、Brief description of test apparatus and date of latest calibration, 7.2.3 Description of test sample. Specimen part number and name, 8. SPECIFYING INFORMATION The following information shall be specified in the Detail Specification: 8.1 Acceptance or failure criteria, 8.2 8.3 Overload torque value,
33、8.4 Preconditioning, if other than as specified in paragraph 5.1, Duration torque is to be maintained, if other than 15 seconds. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
34、M 3234h00 Ob4442b 04T 1111 EIA/TIA-455-184 Page 5 AND APPLICATOR ALIGNMENT MECHANISM _c COUPLING SHAFT c. SPECIMEN HOLDER STAND - COUPLING- EXAMPLE OF COUPLING TORQUE TESTER FIGURE L - _. - i Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo rep
35、roduction or networking permitted without license from IHS-,-,-3234600 Ob44427 Tb m EIA/TIA-455-184 Page 6 APPENDIX COMPARISON BETWEEN THIS FOTP AND IEC OR CCITT REQUIREMENTS (Nonmandat ory Informat on) Al. IEC Reference is made to IEC-874-1, Third Edition3 “Connectors for optical fibres and cables,
36、 Generic specification.“ Clause 4.5.15, “Coupling Proof Torque“ of IEC-874-1, Third Edition, defines a mechanical test and measurement procedure which, insofar as can be determined, is the same as the test defined in FOTP-184. It is believed that this IEC method was originally created to test electr
37、ical connectors and was later adapted to fiber optic connectors. Also it should be noted that a sample apparatus is included in the FOTP but not in the IEC document. A2. CCITT There are no references to any test equivalent to this FOTP know to exist in CCITT documents. 3. In process of preparation. Pending publication of this revision this test can be found in Clause 4.5.15 of IEC SC86BC069. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
