1、00 00 ANSI/TIA/EIA-455-188-1991 Approved: December 9, 1991 Reaffirmed: December 17, 2001 TIA/EIA STANDARD FOTP-188 Low Temperature Testing of Fiber optic Components TIAIEIA-455-188 JANUARY 1992 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Teleconmiunications Industry Association represents the conmiu
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7、he applicability of regulatory limitations before its use. (From Standards Proposal No. 3-2350-RF1, formulated under the cognizance of the TIA FO-6.3 Subcommittee on Interconnecting Device and Passive Components.) This Document was reaffirmed by the American National Standards Institute (ANSI) on De
8、cember 17,200 1, and by the TIA. Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 199 1 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of EIA ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENGINEERING PUBLICATIONS or call
9、 Global Engineering Documents, USA and Canada (1 -800-854-7 179) International (303-397-7956) 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 license from IHS-,
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18、 OF PROFITS, LITIGATION, OR THE LIKE), WHETHER BASED UPON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HER
19、EOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-188 FOTP - 18 8 LOW TEMPERATURE TESTI
20、NG OF FIBER OPTIC COMPONENTS (From EIA Standards Proposal No. 2350, 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 in
21、cluded within Recommended Standard EIA/TIA-455. 1. INTRODUCTION 1.1 Intent This procedure is intended for exposing a specimen to the environmental condition of extended low temperature (cold). It is not intended for exposing a specimen to the environmental condition of high temperature or of tempera
22、ture variation. When high temperature is of interest, use FOTP-4. When temperature variations are of interest, use FOTP-3. 1.2 Description The specimen is placed in a chamber at ambient temperature. The chamber temperature is then lowered to the test temperature at a rate not to exceed l0C per minut
23、e and allowed to remain at that temperature for the specified duration. The chamber temperature is then raised to ambient and the specimen is allowed to attain ambient temperature equilibrium before final measurements are made. 1.3 Alternative Procedures This test procedure is an alternative procedu
24、re to IEC Publication 60068-2-1 (Test Ab). 1 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-188 2. APPLICABLE DOCUMENTS The following standards contain provisions w
25、hich, through reference in this text, constitute provisions of this procedure. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this procedure are encouraged to apply the most recent editions of the referenced st
26、andards. EIA/TIA-455-A “Standard Test Procedures for Fiber Optic Fibers, Cables, Transducers, Sensors, Connecting and Terminating Devices, and Other Fiber Optic Components FOTP-3 (EIA/TIA-455 -3A) IIProcedure to Measure Temperature Cycling Effects on Optical Fibers, Optical Cable, and Other Passive
27、Fiber Optic Componentsll FOTP-4 (EIA-455 -4A) “Fiber Optic Connector/Component Temperature Life“ IEC Publication 60068-2-1, “Basic environmental testing Fifth Edition (1990) Section Two procedures, Part 2: Tests, Test AY Coldll “Test Ab: Cold for Non Heat- Dissipating Specimen with Gradual Change of
28、 Temperature 2 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-188 3. APPARATUS The apparatus consists of a chamber capable of housing the specimen and of allowing a
29、ccess for measurement during conditioning, if specified. It must be capable of maintaining the specified temperature within the specified tolerances. Forced air circulation may be used to maintain homogeneous conditions. To limit radiation problems, the temperature of the chamber walls, after temper
30、ature stability is reached, shall not differ by more than 8% of the specified ambient temperature. This requirement applies to all chamber walls and the specimen(s) shall not iiseeii heating or cooling elements which do not comply with this requirement. Additional apparatus may be necessary to perfo
31、rm the measurements specified by the Detail Specification. If so, the Detail Specification shall (a) specify the apparatus directly, (b) make reference to an applicable FOTP, or (c) include other appropriate reference (s) . 4. SAMPLING AND SPECIMENS 4.1 Sampling. Unless otherwise specified in the De
32、tail Specification, select the test specimens randomly from the lot (s) being tested and according to the schedule in the Detail Specification. 4.2 Specimens. The Detail Specification shall define the specimen. 5. PROCEDURE 5.1 Preconditioning Precondition the specimen as required by the Detail Spec
33、ification. 5.2 Initial Measurements Take initial measurements as required by the Detail Specification 5.3 Severity The severity of the test is determined by the combination of the temperature and the duration of exposure. 3 Copyright Telecommunications Industry Association Provided by IHS under lice
34、nse with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-188 The following are nonmandatory durations which may be specified preferred temperatures and test for this procedure. Temperature ( f 3OC 1 Duration (Hours 1 - 65 - 55 - 40 - 25 - 10 -5 +5 As
35、 Specified 2 16 72 96 As Specified 5.4 Conditioning 5.4.1 Stabilize the chamber and the specimen to standard laboratory conditions in accordance with EIA/TIA-455-A, Section 6 (23 f 5 OC, 20 to 70% relative humidity, and site ambient atmospheric pressure). 5.4.2 Place the specimen in the chamber in i
36、ts normal operating position (including hookups to peripheral equipment when required). 5.4.3 Adjust the chamber temperature to the specified severity. The rate of change of temperature within the chamber shall not exceed l0C per minute, averaged over a maximum period of 5 minutes. 5.4.4 Allow the s
37、pecimen to reach temperature stability and maintain the temperature for the duration severity specified in the Detail Specification. 5.4.5 At the completion of the duration severity, allow the specimen to remain in the chamber while the temperature is gradually raised to standard laboratory conditio
38、ns (as stated in 5.4.1). 4 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-188 The rate of change of the temperature within the chamber shall not exceed l0C per minu
39、te, averaged over a maximum period of 5 minutes. 5.4.6 The Detail Specification may call for measurements during conditioning. If such measurements are required, the Detail Specification shall specify the measurements to be made and when to take them. Do not remove the specimen(s) from the chamber w
40、hen taking these measurements. 5.5 Recovery 5.5.1 Remove water droplets by shaking the specimen or by using a blast of air at laboratory temperature for a short time. 5.5.2 Allow the specimen to remain under standard atmospheric conditions (5.4.1) for a period of not less than 1 hour. 5.5.3 The Deta
41、il Specification may call for measurements during recovery. If such measurements are required, the Detail Specification shall specify the measurements to be made and when to make them. 5.6 Final Measurements Take final measurements as required by the Detail Specification. 6. CALCULATIONS OR INTERPRE
42、TATION OF RESULTS This Section is not applicable to this procedure. 7. DOCUMENTATION 7.1 As a minimum, the documentation shall provide the following information: 7.1.1 Title of test and date. 7.1.2 Specimen description including the type of test fiber. The description shall contain the specimen vari
43、ant identification number, when applicable. 7.1.3 The apparatus used and the date of latest calibration. 7.1.4 All applicable test details (see Section 8). 7.1.5 All measurement values and observations. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for R
44、esaleNo reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-188 7.2 The following information shall be reported and available only for U.S. Military applications: 7.2.1 Test personnel. 8. SPECIFICATION INFORMATION The Detail Specification shall specify the following details
45、, as applicable: 8.1 A definition of the specimen to be tested (see Section 4.). 8.2 Temperature severity (5.3 or other). 8.3 Duration of exposure severity (5.3 or other). 8.4 Specimen to be functioning or nonfunctioning during test. 8.5 Preconditioning procedure (5. i) . 8.6 Initial measurements (5
46、.2) and acceptance values. 8.7 Conditioning measurements (5.4.6) and acceptance values, if any. 8.8 Recovery measurements (5.5.3) and acceptance values, if any. 8.9 Final measurements (5.6) and acceptance values. 8.10 All deviations from this procedure. 6 Copyright Telecommunications Industry Associ
47、ation Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA/EIA-455-188 APPENDIX COMPARISON BETWEEN THIS FOTP AND IEC OR CCITT REQUIREMENTS (Nonmandatory Information) Al. IEC Reference is made to IEC 60068-2-1, Fifth Edition (199
48、0), “Basic environmental testing procedures, Part 2: Tests, Test A: Cold,“ and specifically to IlSection Two - Test Ab: Cold for Non Heat-Dissipating Specimen with Gradual Change of Temperature.“ Insofar as can be determined, Test Ab of IEC 60068-2-1 is essentially the same as the test defined in FO
49、TP-188. A2. CCITT There are no references to any test equivalent to this FOTP known to exist in CCITT documents. 7 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Telecommunications Industry Association Provided by I
