1、TIA DOCUMENT Detail Specification for 50-nm Core Diametedl25 pm Cladding Diameter Class Ia Graded Index Multimode Optical Fibers TIA-492AAAB Reaffirmed September 30,2002 November 1998 TELECOMMUNICATIONS INDUSTRY ASSOCIATION The Teleconmiunications Industry Association represents the conmiunications
2、sector of Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstanding
3、s between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for their particular need. The existence of such Publications shall not in any respect preclude any member
4、 or non-member of TIA from manufacturing or selling products not conforming to such Publications. Neither shall the existence of such Documents preclude their voluntary use by non-TIA members, either domestically or internationally. TIA DOCUMENTS TIA Documents contain information deemed to be of tec
5、hnical value to the industry, and are published at the request of the originating Committee without necessarily following the rigorous public review and resolution of comments which is a procedural part of the development of a American National Standard (ANS). TIA documents shall be reviewed on a fi
6、ve year cycle by the formulating Committee and a decision made on whether to reaffirm, revise, withdraw, or proceed to develop an American National Standard on this subject. Suggestions for revision should be directed to: Standards nominal value shall be indicated on purchase order Coating compositi
7、on: usually mad from one or more plastic materials o compositions, to protect the fibe during manufacture, handling, an use Application(s): telephony, distribution and local networks, carrying data, voice and/or video services and on-premises intrabuilding and interbuilding fiber installations, incl
8、uding LANs, PBXs, video, various multiplexing uses, outside telephone cable plant use, and miscellaneous related uses. i Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-492AA
9、AB-ENGL 1996 m 32311b00 ObL726b 72T TINEiA-492AAAB Contents Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10、 . v 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I Scope . I 2 2 Normative references . . 3 Background information 2 3.1 Required specifications 2 3.2 Marking 2 3.3 Numbering system . 2 3.4 Other requirements . . 3 3 3.5 Ordering infor
11、mation . . . . . . . . . . . . . . . . . . . . . . 3.6 Additional information (not for inspection purposes) 4 3.7 Additional requirements . 4 4 Inspection requirements 4 4.2 Quality conformance Inspection . . 4 4.1 Qualification approval . 4 5 Quality assessment tables . . 4 Annex A (normative), Qua
12、lity Conformance Inspection (QCI) codes and levels . I I Annex B (normative), Alternative part-number codes for multicellular attributes . 12 Annex C (informative), Surrogate and other test procedures 15 Annex D (informative), Material dispersion specification 1 17 Table I - Dimensional specificatio
13、ns . . . . . 6 Table 2 - Mechanical specifications . . 7 Table 3 - Optical specifications . 8 Table 4 - Environmental specifications . . 1 O iii Previous page is blank Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted
14、 without license from IHS-,-,-STD-EIA TIA-492AAAB-ENGL L998 = 3234600 Ob37287 bbb TIAIEIA49AAAB Foreword (This Foreword is informative only and is not part of this Standard.) This document comes from TIA Standards Proposal No. 3832, formulated under the cognizance of TIA FO-6, Committee on Fiber Opt
15、ics, FO-6.6, Subcommittee on Optical Fibers and Materials, and FO-6.6.2, Working Group on optical fiber specifications. There are 4 annexes: Annexes A and B are normative; Annexes C and D are informative. Key Words: multimode, detail specification V Previous page is blank Copyright Electronic Indust
16、ries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-492AAAB-ENGL 1798 3234600 Ob17288 5T2 I TINEIA-492AAAB Detail Specification for 50-pm core diameterll25ym cladding diameter class la graded-index multimo
17、de optical fibers Introduction This Specification enables end users and manufacturers of fiber-optic cable to specify one of the choices of multimode optical fiber contained in the cable. This Specification, in conjunction with Generic Specification TINEIA-4920000-B and Sectional Specification TINEI
18、A-492AOOO-A, follow the specification structure of the National Electronic Components Quality Assessment System (NECQ). I Scope This Detail Specification applies to class la, graded-index, 5011 25pm multimode optical fiber used as a component in the manufacture of fiber-optic cable used in buildings
19、. Applications include, but are not restricted to, the following: telephony, distribution and local networks, carrying data, voice and/or video services and on-premises intrabuilding and interbuilding fiber installations, including LANs, PBXs, video, various multiplexing uses, outside telephone cabl
20、e plant use, and miscellaneous related uses. 1 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STDWEIA TIA-492AAAB-ENGL 3998 3234b00 Ob37287 439 TINEIA-492AAAB 2 Normative references Whe
21、re applicable, this Detail Specification shall use information and related documents derived from, and referenced in: - TIAEIA-4920000-B, Generic Specification for optical fibers; - TlA/EIA-492AOOO-A, Sectional Specification for class la graded-index multimode optical fibers; - TIA/EIA-492AAOO-A, Bl
22、ank Detail Specification for class la graded-index multimode optical fiber. (Hereafter in this document, the above documents will be referred to as the Generic Specification, Sectional Specification, and Blank Detail Specification, respectively.) 3 Background information 3.1 Required specifications
23、This Standard takes the entire contents of clause 4 of the Sectional Specification into account. The tables of this document include the minimum list of attributes specified in clause 4 of the Sectional Specification. 3.2 Marking Marking shall conform to the provisions of 3.3 of the Sectional Specif
24、ication. 3.3 Numbering system The numbering system shall conform to 3.8 of the Generic Specification. 2 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-492AAAB-ENGL L778 323Y
25、bO b17270 150 W TINEIA-492AAAB Use the part number for all items on every purchase order to define particular choices for certain parameters that have multiple limit cells. See Annex B for definition and discussion of the part-number system. 3.4 Other requirements 3.4.1 Coating . - Generic compositi
26、on: acrylic or other suitable polymeric material. - Removal method: mechanical or other suitable removal method. 3.4.2 Factory splicing Factory splicing is not permitted. 3.4.3 Marking Mark the reel to conform to the principles given in 3.3 of the Sectional Specification. 3.4.4 Packaging Packaging s
27、hall conform to the principles given in 3.9.4 of the Generic Specification. 3.4.5 Health and safety Health and safety considerations shall conform to the principles given in 3.9.5 of the Generic Specification. 3.5 Ordering information Orders for fibers covered by this Specification shall contain, in
28、 clear or in coded form, the following minimum information: - Number and revision indicator of the Detail Specification. - Part number. See also 3.3 and Annex B of this Specification. -. 3 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or
29、 networking permitted without license from IHS-,-,-STD.EIA TIA-492AAAB-ENGL 1978 3Z34bOO Ob17271 097 = TINEIA-492AAAB 3.6 Additional information (not for inspection purposes) This Detail Specification supports Detail Specifications in the series of TIA Standards for fiber-optic cable. 3.7 Additional
30、 requirements There are no additional requirements. 4 Inspection requirements . . 4.1 Qualification approval For qualification approval, the process shall be in accordance with 5.2 of the Sectional Specification, which in turn references 4.3 of the Generic Specification. The minimum sample size I is
31、 the same as that specified for periodic requalification 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. 5
32、 Quality assessment tables Tables 1 through 4 cover both qualification approval and QCI requirements, and represent the required list of attributes, as given in 3.1 of this document. NOTE 1 - Column I cross references the subclause in the Sectional Specification that gives more detail on preferred v
33、alues and characteristics. 4 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-492AAAB-ENGL 1998 = 3234600 Ob17292 T23 W TIAIEIA-492AAAB NOTE 2 - Column 3 often lists more than
34、 one test procedure for a given parameter. Many test procedures give interchangeable results, based on interla boratory comparisons. Whenever a non-TINEIA test or a TINEIA surrogate test is called out, there is a reference to Annex D, which gives further details. -. NOTE 3 - In column 4 certain perf
35、ormance requirements need more detailed discussion than a table can accommodate. For example, multiple values may be allowed, and specified alternatives are recommended. See Annex B. Four annexes support the tables: - Annex A explains the QCI codes and levels. - Annex B covers performance requiremen
36、ts for certain attributes, the details of which cannot readily be accommodated in a table. This (normative) annex covers multicellular part numbers, as explained in 3.6.3 of the Generic Specification: attributes for which there are multiple limits or multiple nominal values. - Annex C shows a diagra
37、m of the material dispersion specification, as Figure 1. - Annex D covers specialized tests such as: those not developed by TINEIA (e. g., mechanical counter for length measurement); and those tests (part of EIA/TIA-455-A, usually) that are used as surrogates. Some detail is given. 5 Copyright Elect
38、ronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-EIA TIA-492AAAB-ENGL 1998 m 3234600 Ob37293 9bT m TINEIA492AAAB I Table I - Dimensional specifications Coating/ cladding 55, 163, concentri- or 173 c
39、ity error I Test Attribute Performance requirements and test conditions rocedure(s) FOTP- Qual. appr. please refer to FOTP-169 for further details. - . Use a laser diode or filtered LED with a known center wavelength. The FWHM should be less than 30 nm. The launch and receive optics should excite an
40、d detect only the lowest order modes; therefore single-mode launch and receive optics are desired. When measuring phase-shift, it is essential to prevent ambiguities of 360n degrees, where n is an integer. This can be accomplished by selecting a modulation frequency sufficiently low enough to limit
41、the phase-shift to less than 360 degrees. 15 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STDmEIA TIA-442AAAB-ENGL 1448 W 3234b00 Ob17303 634 TIMEIA-492AAAB A phase “zero-length“ refe
42、rence is needed for each of the measurement frequencies used. This may be accomplished by connecting the test-set launch and receive optics back-to-back and recording the phase for each measurement frequency. Connect the test fiber to the measurement apparatus and record the phase for each measureme
43、nt frequency. The group-delay at each measurement frequency for the calibration and test sample measurement may be determined from the measured phase-shift by: t = $/(360 x 9 where t = group-delay, 4 = measured phase, and f = modulation frequency. The fiber length in meters may be determined by: L =
44、 (tm - tr) x c/n where L = length, tm = total group-delay determined for the test sample measurement, tr = total group-delay determined from the “zero length“ reference measurement, c = the speed of light, and n = the effective group-index value of the fiber under test. 16 Copyright Electronic Indus
45、tries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD=EIA TIA-492AAAB-ENGL 1998 3234600 0637304 575 = TINEiA-492AAAB 0.115 - 0.11 - 0.105 I 0.1 - 0.095 I 0.09 - Annex D (informative) Material dispersion specificati
46、on 0.085 0.075 0.07 / Allowed region of zero dispersion wavelengths & dispersion slopes 1290 1295 1300 1305 1310 1315 1320 1325 Zero dispersion wavelength (nm) Figure 1 - Material Dispersion Specification -. 17 Copyright Electronic Industries Alliance Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
