1、 TIA-455-6-B (Revision of EIA/TIA-455-6-A) March 1992 (r 01/2012) FOTP-6 Cable Retention Test Procedure for Fiber Optic Cable Interconnecting Devices NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturer
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22、, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. I . EIA TIA-455-bB 92 W 3234600 0501164 - _- 4 = 1 1. . 2. 3. 4. 5. 6. 7. 8. APPENDIX FOTP-6 CABLE RETENTION TEST PROCEDURE FOR FIBER OPTIC CABLE INTERCONNECTING DEVICES TABLE OF CONTENTS INTRODUCTION APPLICABLE DOCUMENTS A
23、PPARATUS SAMPLING AND SPECIMENS PROCEDURE CALCULATIONS OR INTERPRETATION OF RESULTS DOCUMENTATION SPECIFICATION INFORMATION COMPARISON BETWEEN FOTP-6 AND IEC, IS0 AND CCITT REQUIREMENTS Paqe 1 2 3- 4 8 EIA/TIA-455-6B Page 1 FOTP-6 CABLE RETENTION TEST-PROCEDURE FOR FIBER OPTIC CABLE INTERCONNECTING
24、DEVICES (From EIA Standards Proposal No, 2763, 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 Recomme
25、nded Standard EIA/TIA-455. NOTE : This FOTP was previously published in EIA-455-6A as FOTP-6. 1. INTRODUCTION 1.1 The intent of this test is to mechanically stress the interconnecting-device-to-fiber-optic-cable-joint in tension. The results of this test provide an indication as to the relative stre
26、ngth of the cable-to-interconnecting device joint and may . also indicate degradation resulting from prior environmental exposure. 1.2 Failure Mdes. Potential failure modes for this test include, but are not limited to: Intent. a a. Cable Jacket Damage, b. Fiber breakage or damage, c. Cable clamp fa
27、ilure, d. Cable pull out, e. Loss of optical continuity, f. Failure of fiber-terminus relative to interconnecting device. g. Cable seal damage, This method is similar to Method 2009.1 of MIL-STD-1344A. EIA TIA-455-bB 92 I 3234600 050Llbb 8 I EIA/TIA-455-6B Page 2 h. Excessive movement of cable/termi
28、nus relative to interconnecting device, i. Degradation of cable/connector optical transmission characteristics. 2. APPLICABLE DOCUMENTS The following documents form a part of thLs FOTP to the extent specified herein: EIA/TIA-455-A FOTP-13 (EIA-455-13) FOTP-20 (EIA/TIA-455-20A) MIL-STD-1344A3 Method
29、2009.1 IEC-874-1, 3rd Ed. 4 “Standard Test Procedures for Fiber Optic Fibers, Cables, Transducers, Sensors, Connecting and Terminating Devices, and Other Fiber Optic Components Visual and Mechanical Inspection of Fiber, Cables, Connectors and/or Other Fiber Optic Devices “Measurement of Change in Op
30、tical Transmittance“ “Test Methods for Electrical Connec tors“ II Cab le Pul 1 -Out “Connectors for optical fibres and cab les In process of preparation. Pending publication of this revision, use EIA RS-455-20. Available from Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philad
31、elphia, PA 19111-5094, oi: from the procuring activity, or as directed by the contracting officer. In process of preparation. Pending publication of this revision, use IEC SC86B(Central Officel69, July 1989. I EIA TIA-455-bB 92 3234b00 0503367 T = EIA/TIA-455-6B Page 3 3. APPARATUS The following app
32、aratus and equipment are required to perform this test: 3.1 Specimen Holding Device. Provide a means to hold the fiber optic cable and interconnecting device(s) in position during test. The holding method used shall not distort the specimens under test. Mount the interconnecting device(s) rigidly in
33、 a fixed position using its normal mounting provisions. The Detail Specification shall specify one of the following holding methods for the attached cable: 3.1.1 Method 1: Wrap the optical cable around a mandrel having a diameter which is a minimum of 25 times the diameter of the cable. Use an adequ
34、ate number of turns of cable to preclude slippage. (Use of double-coated adhesive tape will help preclude slippage.) The distance between the rear-most portion of the connector and the cable-to-mandrel tangent point shall be no less than 50 times the diameter of the cable. 3.1.2 Method 2: Open the n
35、on-connectorized end of the cable to expose the strength member(s). Retain the strength member(s) in a fixture and attached to the testing device to permit application of the required force directly to the strength member(s), thereby placing the cable in tension. NOTE: In either of th two holding me
36、thods, fixturing shall allow connector assemblies,to be connected to optical source and detector circuits in order to monitor changes in optical transmittance (if required by the Detail Specification). If the connector assembly contains spring loading which may decouple under the specified test load
37、, the Detail Specification shall specify the appropriate fixturing in order to preclude decoupling by spring compression. 3.2 Separation Device. Use an appropriate mechanism to separate the holding devices at a constant rate of speed. (For alternative apparatus, see 3.4.) 3.3 Force Gauge. Use an app
38、ropriate gauge to register the amount of force being exerted between the interconnecting device and the fiber optic cable. This equipment may include a device to record the rate of force application or the total time the force is applied, or both. (For alternative apparatus, see 3.4 EIA TIA-455-bB 9
39、2 3234600 050LLb8 L EIA/TIA- 4 5 5 - 6B Page 4 3.4 Alternative Apparatus for Separation Device and Force Gauge. Unless prohibited by the Detail Specification, appropriate alternative apparatus may be used in lieu of a mechanical separation device and a force gauge; for example, the required force ma
40、y be achieved by applying controlled increments of mass to one of the holding devices while the other holding device remains fixed, thereby developing the required force through the action of gravity upon the mass (i.e., a “dead weight“ test). 3.5 Time Clock. A device to measure the total time the l
41、oad force is applied, if apparatus per 3.3 is not used. 3.6 Other Equipment. Optical and other test and inspection equipment shall be available as required by FOTPs -13 and -20, as appropriate. Refer to the required FOTP for details. 4. SAMPLING AND SPECIMENS A test specimen consists of an interconn
42、ecting device and a length of fiber optic cable which is secured in the interconnecting device by normal securing means. 5. PROCEDURE 5.1 Before installing in the test apparatus, make a visual and physical examination of each specimen in accordance with FOTP-13 to assure that specimens have not been
43、 obviously damaged before test. 5.2 Perform other tests and make other measurements before, during, and after test as required by the Detail Specification. 5.3 In turn, install each specimen to be tested in the test apparatus and test it in accordance with 5.4 through 5.9. 5.4 Perform any pre-test o
44、ptical tests required by the Detail Specification. Unless otherwise required by the Detail Specification, measure the optical transmittance of all fibers in accordance with the requirements of FOTP-20. 5.5 Actuate the test apparatus so that an axial force is gradually exerted between the fiber optic
45、 cable and the interconnecting device. Apply the load gradually so as to eliminate any impulse or impact loading effect. If automatic . - EIA TIA-455-bB 92 3234600 0501Lb9 3 ! : b EIA/TIA-455-6B Page 5 loading equipment is used (3.2 and 3.3), it is recommended that the rate of separation of the hold
46、ing devices be approximately 400 (0.016 inch) per second. Continue the loading until the tensile load specified by the Detail Specification has been applied. 5.6 Maintain the specified load for the specified time period as required by the Detail Specification. While the specimen is under load, .make
47、 observations and perform measurements as required by the Detail Specification. 5.7 Remove the test load. 5.8 Perform any post-test optical tests required by the Detail Specification. Unless otherwise required by the Detail Specification, measure optical transmittance of all fibers in accordance wit
48、h the requirements of FOTP-20. 5.9 5.10 accordance with FOTP-13. following: Remove the specimen from the test apparatus. Make a visual and physical examination of each specimen in Unless otherwise required by the Detail 0 Specification, the minimum examination shall include the a. Dimensional change
49、s in excess of specified limits. b. Opening of seals. c. Cracking or crazing or delamination of components or finishes. d. Leakage of potting or waterproofing materials, as specified. f. Loss or degradation of contact and terminus capabilities. f. Loss of optical continuity. g. External cable damage. 5 retention Unless otherwise specified in he Detail Specif AcatAon, cable exterior deformation shall not be considered as damage. Cracking, splitting, or similar effects shall, however, be considered as damage. EIA TIA-455-bB 92 3234600 0501170 T EIA/TIA-455-6B Page 6 6
