1、 TIA STANDARD Detail Specification for Class IVa Dispersion-Unshifted Single-Mode Optical Fibers with Low Water Peak TIA-492CAAB August 2000 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance ANSI/TIA/EIA-492CAA
2、B-2000Approved: August 23, 2000Reaffirmed: May 10, 2005NOTICE TIA 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 th
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5、tion, TIA 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 all applicable regulatory requirements. It is the responsi
6、bility 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. 3-4590-RF1, formulated under the cognizance of the TIA FO-4.2 Subcommittee on Optical Fibers and Cables).
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18、ANY AND ALL INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF BUSINESS, LOSS 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 POSSIB
19、ILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-492CAABDetail Specificationfor class IVa dispersion-unshifted single-mode optical fibers withlow water p
20、eakPrepared by TIA FO-6.6 Subcommittee on Fibers and Materials, FO-6.6.5, Working Group onSingle-Mode Fibers and FO-6.6.2 Working Group on Optical Fiber SpecificationsTelecommunications Industry Association/Electronic Industries Association2500 Wilson BoulevardArlington, VA 22201-3836Detail Specific
21、ationTIA/EIA-492CAABElectronic Components of AssessedQuality in Accordance with GenericSpecification TIA/EIA-4920000-BBlank Detail SpecificationTIA/EIA-492CA00Outline drawing: Description: class IVa dispersion-unshifted single-mode optical fiberswith low water peakConstruction: Cladding diameter: 12
22、5.0 m Fiber composition: all-glass Coating diameter: a function ofcable design; nominal value shall beindicated on purchase order Coating composition: usually madefrom one or more plastic materialsor compositions, to protect the fiberduring manufacture, handling, anduseApplications: Transmissionsyst
23、ems using dispersion-unshiftedsingle-mode optical fibers, such asanalog video, FDDI, SONET andATM, that operate at one or morewavelengths in the 1310, 1550, or1400 nm wavelength windows.TIA-492CAAB This page left blank. TIA-492CAABiContentsForeword vIntroduction. 11 Scope. 12 Normative references. 1
24、3 Background information. 23.1 Required specifications. 23.2 Marking 23.3 Numbering system 23.4 Other requirements. 23.5 Ordering information . 33.6 Additional information (not for inspection purposes). 33.7 Additional requirements. 34 Inspection requirements. 34.1 Qualification approval 34.2 Qualit
25、y conformance Inspection . 35 Quality assessment tables 4Annex A (normative), Quality Conformance Inspection (QCI) codes and levels. 12Annex B (normative), Part-number codes for multicellular attributes 13Annex C (normative), Other test procedures. 16Annex D (informative), Surrogate and other test p
26、rocedures 17Table 1 - Dimensional specifications. 5Table 2 - Mechanical specifications. 6Table 3 - Optical specifications 6Table 4 - Environmental specifications 9TIA-492CAABiiThis page left blank.TI-492CAABiiiForeword(This Foreword is informative only and is not part of this Standard.)This document
27、 comes from TIA Standards Proposal No. 4590, formulated under the cognizanceof TIA FO-6, Committee on Fiber Optics, FO-6.6, Subcommittee on Fibers and Materials, andFO-6.6.5, Working Group on Single-Mode fibers.There are 4 annexes: Annexes A, B and C are normative; Annex D is informative.Key words:
28、ATM, FDDI, DWDM, dispersion-unshifted, water peak, fiber optic, single-mode,SONET.TIA-492CAABivThis page left blank.TIA-492CAAB1Detail Specificationfor class IVa dispersion-unshifted single-mode optical fibers thathave a low water peakIntroductionThis Specification enables end users and manufacturer
29、s of fiber-optic cable to specify thechoice of single-mode optical fiber contained in the cable. This Specification, in conjunction withGeneric Specification TIA/EIA-4920000-B and Sectional Specification TIA/EIA-492C000, followthe specification structure of the National Electronic Components Quality
30、 Assessment System(NECQ)._1 Scope_This Detail Specification applies to a Class IVa dispersion-unshifted single-mode optical fiberthat has low attenuation at wavelengths near the water peak (typically near 1383 nm). Class IVasingle-mode fiber has a nominal zero-dispersion wavelength in the 1310 nm tr
31、ansmissionwindow. The fiber is commonly referred to as a dispersion-unshifted (or non-shifted) fiber, andits dispersion characteristic is approximated by a differentiated Sellmeier equation (see 4.4.4 ofthe Sectional Specification). This Detail Specification applies to a sub-category of a Class IVaf
32、iber that is termed “Low Water Peak” fiber. These fibers are characterized by having a low,environmentally stable attenuation coefficient in the vicinity of 1383 nmtraditionally referred toas the “water peak.”_2 Normative references_Where applicable, this Detail Specification shall use information a
33、nd related documents derivedfrom, and referenced in:- TIA/EIA-4920000-B, Generic Specification for optical fibers;- TIA/EIA-492C000, Sectional Specification for class IVa dispersion-unshifted single-modeoptical fibers;- TIA/EIA-492CA00, Blank Detail Specification for class IVa dispersion-unshifted s
34、ingle-modeoptical fiber.TIA-492CAAB2(Hereafter in this document, the above documents will be referred to as the GenericSpecification, Sectional Specification and Blank Detail Specification, respectively.)3 Background information3.1 Required specificationsThis Standard takes the entire contents of cl
35、ause 4 of the Sectional Specification into account.The tables of this document include the minimum list of attributes specified in clause 4 of theSectional Specification.3.2 MarkingMarking shall conform to the provisions of 3.3 of the Sectional Specification.3.3 Numbering systemThe numbering system
36、shall conform to 3.8 of the Generic Specification.Use the part number for all items on every purchase order to define particular choices for certainparameters that have multiple limit cells. See Annex B for definition and discussion of the part-number system.3.4 Other requirements3.4.1 Coating- Gene
37、ric composition: acrylic.- Removal method: mechanical.3.4.2 Factory splicingFactory splicing is not permitted.3.4.3 MarkingMark the reel to conform to the principles given in 3.3 of the Sectional Specification.3.4.4 Packaging Packaging shall conform to the principles given in 3.9.4 of the Generic Sp
38、ecification.TIA-492CAAB33.4.5 Health and safetyHealth and safety considerations shall conform to the principles given in 3.9.5 of the GenericSpecification.3.5 Ordering informationOrders for fibers covered by this Specification shall contain, in clear or in coded form, thefollowing minimum informatio
39、n: - Number and revision indicator of the Detail Specification. - Part number. See also 3.3 and Annex B of this Specification.3.6 Additional information (not for inspection purposes)There is no additional information.3.7 Additional requirementsThere are no additional requirements.4 Inspection requir
40、ements4.1 Qualification approvalFor Qualification approval, the process shall be in accordance with 5.2 of Sectional SpecificationTIA/EIA-492C000, which in turn references 4.3 of Generic Specification TIA/EIA-4920000-B.Unless otherwise specified, the minimum sample size is the same as that specified
41、 for periodicrequalification (see 4.2 below) in the tables that follow.4.2 Quality Conformance Inspection (QCI)Quality Conformance Inspection shall be in accordance with 5.3 of the Sectional Specification.Note that periodic requalification is a standard component of the QCI program. TIA-492CAAB45 Qu
42、ality assessment tablesTables 1 through 4 cover both qualification approval and QCI requirements, and represent therequired list of attributes, as given in 3.1 of this document.NOTE 1 - Column 1 cross references the subclause in the Sectional Specification thatgives more detail on preferred values a
43、nd characteristics.NOTE 2 - Column 3 often lists more than one test procedure for a given parameter.Many test procedures give interchangeable results, based on interlaboratorycomparisons. Whenever a non-TIA/EIA test or a TIA/EIA surrogate test is called out,there is a reference to Annex C or D, whic
44、h gives further details.NOTE 3 - In column 4, certain performance requirements need more detailed discussionthan a table can accommodate. For example, multiple values may be allowed, andspecified alternatives are recommended. See Annex B.Four annexes support the tables:- Annex A (normative) explains
45、 the QCI codes and levels.- Annex B (normative) covers performance requirements for certain attributes, the details ofwhich cannot readily be accommodated in a table. This annex covers multicellular partnumbers, as explained in 3.6.3 of the Generic Specification: attributes for which there aremultip
46、le limits or multiple nominal values.- Annex C (normative) documents a specialized hydrogen aging test that is required for thisproduct.- Annex D (informative) covers specialized tests such as those not developed by TIA/EIA (e.g., mechanical counter for length measurement), and those tests (part of
47、EIA/TIA-455-A,usually) that are used as surrogates.TIA-492CAAB5Table 1 - Dimensional specificationsSec-tional Test pro-PerformancerequirementsQual. appr. &periodic requal. QCI methodsub-clause Attributecedure(s),FOTP-and testconditionsSamplesize Freq. Code Level4.2.1 Claddingdiameter 45, 48or 176 12
48、5.0 1.0 m N/A N/A SI/DPC 1.04.2.2Claddingnoncir-cularity45, 48,or 176 1.0 % N/A N/A SI 1.04.2.3Core/clad-ding con-centricityerror45 or 176 0.8 m N/A N/A SI 1.04.2.4CoatingdiameterNote1)55, 163,or 173250 15 m N/A N/A SI 1.04.2.5Coating/claddingconcentri-city error55, 163,or 173 20 m N/A N/A SI 1.04.2.6 Fiberlength 60, 133 ormechanicalcounter(see AnnexD)Minimumlength 1.1 km, at13
