1、 TIA/EIASTANDARDFOCIS 12Fiber Optic Connector IntermateabilityStandard Type MT-RJTIA/EIA-604-12SEPTEMBER 2000TELECOMMUNICATIONS INDUSTRY ASSOCIATIONRepresenting the telecommunications industry inassociation with the Electronic Industries Alliance ANSI/TIA/EIA-604-12-2000Approved: August 23, 2000TIA/
2、EIA-604-12NOTICETIA/EIA Engineering Standards and Publications are designed to serve the public interest througheliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability andimprovement of products, and assisting the purchaser in selecting and obtaining with
3、minimum delay theproper product for his particular need. Existence of such Standards and Publications shall not in anyrespect preclude any member or nonmember of TIA/EIA from manufacturing or selling products notconforming to such Standards and Publications, nor shall the existence of such Standards
4、 and Publicationspreclude their voluntary use by those other than TIA/EIA members, whether the standard is to be usedeither domestically or internationally.Standards and Publications are adopted by TIA/EIA in accordance with the American National StandardsInstitute (ANSI) patent policy. By such acti
5、on, TIA/EIA does not assume any liability to any patent owner,nor does it assume any obligation whatever to parties adopting the Standard or Publication.Note: The users attention is called to the possibility that compliance with this document may requireuse of one or more inventions covered by paten
6、t rights.By publication of this standard, Interim Standard, or TSB, no position is taken with respect to thevalidity of those claims or of any patent rights in connection therewith. The patent holder(s) sofar identified have, however, filed statements of willingness to grant licenses under those rig
7、hts onreasonable and nondiscriminatory terms and conditions to applicants desiring to obtain suchlicenses. Details may be obtained from the standards developer.This Standard does not purport to address all safety problems associated with its use or all applicableregulatory requirements. It is the re
8、sponsibility of the user of this Standard to establish appropriate safetyand health practices and to determine the applicability of regulatory limitations before its use.(From Standards Proposal No. 4172, formulated under the cognizance of the TIA FO-6.3.4 Working Groupof the FO-6.3 Subcommittee on
9、Fiber Optic Interconnecting Devices.)Published byTELECOMMUNICATIONS INDUSTRY ASSOCIATION 2000Standards and Technology Department2500 Wilson BoulevardArlington, VA 22201PRICE: Please refer to current Catalog ofEIA ELECTRONIC INDUSTRIES ALLIANCE STANDARDS and ENGINEERING PUBLICATIONS or call Global En
10、gineering Documents, USA and Canada(1-800-854-7179) International (303-397-7956)All rights reservedPrinted in U.S.A.PLEASE!DONT VIOLATETHELAW!This document is copyrighted by the TIA and may not be reproduced withoutpermission.Organizations may obtain permission to reproduce a limited number of copie
11、sthrough entering into a license agreement. For information, contact:Global Engineering Documents15 Inverness Way EastEnglewood, CO 80112-5704 or callU.S.A. and Canada 1-800-854-7179, International (303) 397-7956TIA/EIA-604-12iFOCIS 12FIBER OPTIC CONNECTOR INTERMATEABILITY STANDARDTYPE MT-RJCONTENTS
12、1 INTRODUCTION 12 ADAPTER STANDARD 23 CONNECTOR STANDARD 34 SOCKET STANDARD 55 APPLICATIONS 6TIA/EIA-604-12iiThis page intentionally left blankTIA/EIA-604-1211. Introduction1.1 ScopeFOCIS 12 presents the intermateability standard for connectors with the commercial designation ofMT-RJ, and is used as
13、 an addendum to TIA/EIA-604, Fiber Optic Connector IntermateabilityStandards. The provisions of TIA/EIA-604 apply to this document.1.2 ObjectiveIntermateability standards define the minimum physical attributes of mating connector components.Fully dimensioned components are not within the scope or in
14、tent of FOCIS 12.The requirements of FOCIS 12 have been selected with the objectives of ensuring that a specifiedcombination of connector assemblies conforming to the requirements of FOCIS 12 will mechanicallyintermate, and that intermated connector assemblies will meet their common level of perform
15、ance.1.3 LimitationsRealization of the objectives of FOCIS 12 may be limited by the following considerations:1.3.1 Configuration OptionsThere are configuration options in FOCIS 12 that impose limitations on the combinations of plugs thatshould be combined in a connector assembly. Both plugs should h
16、ave the same number of fibers, option n. Both plugs should have the same alignment pin variant, option t. The alignment pin in the cavity provides the alignment therefore all assemblies should have apinned variant in one half, option c = 1 and a cavity variant in the other, option c = 2.1.3.2 Common
17、 Performance The location of optical cores as shown in Figure 3.2.3 are defined without tolerances by their truepositions. To apply common performance, the distributions of the position of the fiber cores asshown in Figure 3.2.3, should be centered on the true positions. Common performance does not
18、account for intrinsic loss between the fibers being joined; seeTIA/EIA-604, Section 6.1.3.3 ResolutionCases of combinations of plugs and adapters where mechanical intermateability or the common levelof performance is not achieved should be resolved through the cooperation of the user and theconnecto
19、r and adapter manufacturer(s).1.4 Drawing practicesTo be in compliance with ANSI and ISO Engineering Drawing Practices, the following shall apply:1. Where a tolerance of form is not specified, the limits of the dimensions for a feature control theform as well as the size. The combined effects of siz
20、e and form variations may not exceed theenvelope of perfect form at the maximum material condition (MMC).2. Where interrelated features of size (features shown with a common axis or center plane) have nogeometric tolerance of location or runout specified the limits of the dimensions for a feature co
21、ntrolthe location tolerance as well as the size. When the interrelated features are at the MMC, theyshall be perfectly located to each other as indicated by the drawing.3. Where perpendicular features (features shown at right angles) have no geometric tolerance,orientation, or runout specified, the
22、limits of the dimensions for a feature control the orientationtolerance as well as the size. When perpendicular features are at the MMC, they shall be perfectlyoriented to each other as indicated by the drawing.4. As the size of a feature departs from the MMC, variations in form, location and orient
23、ation arepermissible.TIA/EIA-604-1222 Adapter standard2.1 Adapter designationThe complete designation for a FOCIS 12 adapter is:FOCIS 12 A - k - mwhere:A designates that it is the adapterk defines the keying configurationm defines the mounting configuration2.2 Adapter requirementsFOCIS 12 adapters s
24、hall meet the requirements of this section.2.2.1 Adapter interface dimensionsThe dimensional requirements for FOCIS 12 adapters are defined in Figure 2.2.1.2.2.2 Adapter keying optionsThe only keying option specified is k = 1 and is shown in Figure 2.2.1.2.2.3 Adapter mounting optionsThe only mounti
25、ng option specified is m = 0. The mounting features for this option is undefined.TIA/EIA-604-1233 Plug standard3.1 Plug designationThe complete designation for a FOCIS 12 plug is:FOCIS 12 P - d - n - k - a - c - twhere:P designates that it is the plugd defines the plug designn is the number and conf
26、iguration of fibersk defines the keying configurationa is the angle of contactc designates whether the plug interface has pins or cavities designed to accept the pinst designates the alignment pin diameter or the diameter of the cavities containing thealignment pins3.2 Plug requirementsFOCIS 12 plug
27、s shall meet the requirements of this section.3.2.1 Plug interface optionsThere are two plug interface options for FOCIS 12 connectors. The requirements for these interfacesare:d=0 The design requirement on the elements of the plug that control the interface with the adapter,or with the socket for p
28、lugs offered under this option, is that the plugs function with all adaptersthat meet the requirements of Figure 2.2.1, dimensions Q, W, and F of Figure 3.2.1 forlocations of the pins or the cavities designed to accept the alignment pins, and Figure 3.2.3 asrequired.d=1 The elements of the connector
29、 that control the interface with the adapter or the socket, forconnectors offered under this option, must meet the dimensional requirements of Figure 3.2.1,connector interface and Figure 3.2.3 as required.3.2.2 Ferrule extension and contact forceThe travel of the ferrule relative to the body of the
30、plug and the spring force on the ferrule is defined inFigure 3.2.2.3.2.3 Number and configuration of fibers optionThe four values defined for the number of fibers are specified in Table 1. The fiber configurations areshown in Figure 3.2.3.Table 1 - Number of Fibers OptionsFibers Option Number of Fib
31、ersn = 1 1n = 2 2n = 3 2n = 4 43.2.4 Plug keying optionOnly a single keying option for FOCIS 12 plugs has been defined, k = 1.3.2.5 Contact angle optionThe contact angle is the angle between the plane of contact between mating fibers and a planeperpendicular to the optical axis of the connector.Only
32、 a single contact angle option for FOCIS 12 connectors has been defined, a = 0TIA/EIA-604-1243.2.6 Plug interface optionTwo options have been defined for the plug interface:c = 1, to designate a plug interface containing alignment pins.c = 2, to designate a plug interface with cavities to accept ali
33、gnment pinsFigure 3.2.1 shows the plug in the c = 1 configuration.3.2.7 Diameter of alignment pin optionThe diameter options for FOCIS 12 plugs pins are specified in Table 2.Table 2 Options for t = 1 and t = 2Diameter of Alignment Pin (mm)Option Minimum Maximumt = 1 0.698 0.699t = 2 0.697 0.699Note:
34、 Option t = 1 is typically used in single-mode fiber applications, t = 2 is typically used formultimode applications.TIA/EIA-604-1254 Socket Standard4.1 Socket designationThe complete designation for a FOCIS 12 connector socket is:FOCIS 12 S - r - n - k - a- c - twhere:S designates that it is the so
35、cketr designates whether the socket has ribs or not.n designates the number of fibers or devicesk defines the keying configurationa is the angle of contactc designates whether the connector interface has pins or cavitiest designates the alignment pin diameter or the diameter of the cavities containi
36、ng thealignment pins4.2 Socket requirementsFOCIS 12 sockets shall meet the requirements of this section.4.2.1 Socket interface dimensionsThe dimensional requirements for FOCIS 12 sockets are defined in Figures 4.2.1a (r = 0) and 4.2.1b(r = 1). For sockets, ribs are optional.4.2.2 Number of fibers op
37、tionThe four values defined for the number of fibers or devices are specified in Table 1 where they arelisted as fibers.4.2.3 Socket keying optionOnly a single keying option for FOCIS 12 sockets has been defined, k = 1.4.2.4 Contact angle optionThe contact angle is the angle between the plane of con
38、tact between mating fibers, and a planeperpendicular to the optical axis of the connector.Only a single contact angle option for FOCIS 12 sockets has been defined, a = 0.4.2.5 Connector interface optionOnly a single connector interface option for FOCIS 12 sockets has been defined, c = 1, to designat
39、ethe socket will contain alignment pins.4.2.6 Alignment pin diameter optionAlignment pin diameter options for FOCIS 12 sockets are specified in Table 2.TIA/EIA-604-1265 ApplicationsThe FOCIS 12 adapter requirements may be extended to apply to hybrid adapters. FOCIS 12 socketrequirements may be exten
40、ded to apply to receptacles.5.1 Hybrid adaptersA hybrid adapter provides an optical connection between connectors of two different types.A hybrid adapter between a FOCIS 12 connector and another connector would have the dimensions ofFigure 2.2.1 on one side of the centerline or optical plane and the
41、 corresponding dimensions of someother type on the other side.5.2 ReceptaclesA receptacle provides an optical connection to a device such as an optical source or detector. It maybe based on the dimensions of a FOCIS 12 socket, figures 4.2.1 or 4.2.2 or on the dimensions of halfof a FOCIS 12 adapter,
42、 Figure 2.2.1.Default Ballot(To be TIA/EIA-604-12)7Figure 2.2.1 - Adapter Interface (sheet 1)TIA/EIA-604-128Dimensions (mm)Reference Minimum Maximum NotesA 4.7 4.78B 7.2 7.28C 2.51 2.61D 4.46 4.56E4.15.0G 1.15 1.25H 5.45 5.85J 0.25 RadiusKL9.19.3M2N 82 88 DegreesP4.1S08T 1.43 1.53DD 0.45 0.55EE 25 3
43、5 DegreesFigure 2.2.1 - Adapter Interface (sheet 2)TIA/EIA-604-129Figure 3.2.1 - Plug (sheet 1)TIA/EIA-604-1210Dimensions (mm)Reference Minimum Maximum NotesA 4.61 4.69B 7.11 7.19C2.42.5D 4.35 4.45E3.8F 2.597 2.603G 1.45 1.55H 5.3J 0.25 RadiusK51L 9.35 9.75 1M7.N 82 88 DegreesP3.4Q 2.25 2S 0.8 Radiu
44、sT0.91.U015 2V0.4W 3,4AA 0.63 1.2BB 1.27 1.42CC 0.6 0.77FF 1.5 2Notes1. Dimension is given for an unmated polished Plug. See Figure 3.2.2 for ferrule travel.2. Dimensions apply to an option c = 1 Plug only.3. See Section 3.2.7 for alignment pin diameter specifications for option c = 1 Plug.4. The op
45、tion c = 2 Plug shall accept a gauge pin, as shown in Figure 3.2.1a, to a depth of 5.5 mmwith a maximum insertion force of 1.7 N.5. Ferrule material shall have a maximum Youngs Modulus of 40 GPa.Figure 3.2.1 - Plug (sheet 2)TIA/EIA-604-1211Dimensions in mm.Dimensions (mm)Reference Minimum Maximum No
46、tesA 0.6985 0.699 1BA 0.2 0.4BB 0.2 0.5BC 5.5 Note1. Surface roughness 0.1 m Ra for the length of dimension BCFigure 3.2.1a - Alignment Cavity Diameter GaugeTIA/EIA-604-1212Requirements on Ferrule Travel and ContactForceIF THEN1F = 0 9.35 L 9.75 mm2 L 9.3 mm F 7.8 N3 L 9.1 mm F 11.8 NFigure 3.2.2 -
47、Ferrule Extension and Contact ForceTIA/EIA-604-1213Dimensions in mm.Option Fiber Positionsn = 1 1n = 2 2 x .25 mm pitchn = 3 2 x .75 mm pitchn = 4 4 x .25 mm pitchNoteThe optical datum target diagram is shown in the figure. The optical datum targets are located on a lineX passing through the two pin
48、-cavity centers and located on or symmetrically about a line Yperpendicular to line X located midway between the two pin-cavity centers. The optical datum targetsare the true positions for the optical axes of the optical elements. The optical elements may be eitherfibers or devices.Figure 3.2.3 - Fi
49、ber or Device True PositionsTIA/EIA-604-1214dimensions in mmFigure 4.2.1a - Socket Without Ribs (r = 0) (sheet 1)TIA/EIA-604-1215Dimensions (mm)Reference Minimum Maximum NotesA 4.7 4.78B 7.2 7.28C 2.51 2.61D 4.46 4.56E4.15.0F 2.597 2.603J 0.25 RadiusKL9.19.3M2N 82 88 DegreesP4.1Q3. 2S0.8T 1.43 1.53U0.5V0.4W 1FF .35 1. See Section 3.2.7 for alignment pin diameter specifications Additionally, when dimension FF isbelow 0.4 mm,
