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1、 TIA STANDARD Fiber Optic Connector Intermateability Standard, Type MPO TIA-604-5-D April 2007 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance NOTICE TIA Engineering Standards and Publications are designed to
2、 serve the public interest through eliminating misunderstandings 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
3、 such Standards and Publications shall not in any respect preclude any member or non-member of TIA from manufacturing or selling products not conforming to such Standards and Publications. Neither shall the existence of such Standards and Publications preclude their voluntary use by Non-TIA members,
4、 either domestically or internationally. Standards and Publications are adopted by TIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, TIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopt
5、ing 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 responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicabil
6、ity of regulatory limitations before its use. (From Project No. 3-3957-RV4, formulated under the cognizance of the TIA FO-4 Committee on Fiber Optics, FO-4.3 Subcommittee on Passive Optical Devices and Components). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Departm
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20、 ANY PRODUCT OR SERVICE REFERRED TO IN THE DOCUMENT OR PRODUCED OR RENDERED TO COMPLY WITH THE CONTENTS. TIA SHALL NOT BE LIABLE FOR ANY AND ALL DAMAGES, DIRECT OR INDIRECT, ARISING FROM OR RELATING TO ANY USE OF THE CONTENTS CONTAINED HEREIN, INCLUDING WITHOUT LIMITATION ANY AND ALL INDIRECT, SPECI
21、AL, 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 POSSIBILITY OF SUCH DAMAGES. THE
22、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-604-5-D i FOCIS 5 FIBER OPTIC CONNECTOR INTERMATEABILITY STANDARD Type MPO CONTENTS 1 INTRODUCTION 1 2 ADAPTER STANDARD 4 3 PLUG ST
23、ANDARD 5 4 APPLICATIONS 7 5 ANNEX A 18 TIA-604-5-D ii TIA-604-5-D 1 1 Introduction 1.1 Scope FOCIS 5 presents the intermateability standard for connectors with the commercial designation of MPO, and is used as an addendum to TIA/EIA-604, Fiber Optic Connector Intermateability Standards. The provisio
24、ns of TIA/EIA-604 apply to this document. 1.2 Objective Intermateability standards define the minimum physical attributes of mating connector components. Fully dimensioned components are not within the scope or intent of FOCIS 5. The requirements of FOCIS 5 have been selected with the objectives of
25、ensuring that any combination of plugs and adapters conforming to the requirements of FOCIS 5 will mechanically intermate, and that intermated connector assemblies will meet their common level of performance. The common level of performance of an intermated connector assembly is the least demanding
26、set of performance requirements in the separate performance specifications of each of the products in the assembly; see TIA/EIA 604. 1.3 Limitations Realization of the objectives for FOCIS 5 may be limited by the following considerations: 1.3.1 Configuration Options There are configuration options i
27、n FOCIS 5 that impose limitations on the combinations of plugs that should be combined in a connector assembly: Both plugs should have the same number of fiber arrays, option m; Both plugs should have the same number of fibers per array, option n; Both plugs should have the same alignment pin/hole d
28、iameter, option t; Both plugs should have the same angle of contact, option a; Only plugs with option a = 0 can use adapters with keying option k = 2; Each plug in an assembly should have a different plug interface, option c. 1.3.2 Common Performance The locations of the optical cores, as shown in F
29、igure 3.2.3, are defined, without tolerances, by their true positions. To apply common performance the distribution of the optical cores, as shown in Figure 3.2.3, should be centered on their respective true positions. This standard does not control the intrinsic loss that may occur between fibers i
30、n a connector assembly. Intrinsic loss between fibers must be added to the basic connector loss. TIA-604-5-D 2 1.4 Drawing practices To 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 dimens
31、ions for a feature control the form as well as the size. The combined effects of size and form variations may not exceed the envelope of perfect form at the MMC (maximum material condition). 2. Where interrelated features of size (features shown with a common axis or center plane) have no geometric
32、tolerance of location or runout specified, the limits of the dimensions for a feature control the location tolerance as well as the size. When the interrelated features are at the MMC, they shall be perfectly located to each other as indicated by the drawing. 3. Where perpendicular features (feature
33、s shown at right angles) have no geometric tolerance or orientation or runout specified, the limits of the dimensions for a feature control the orientation tolerance as well as the size. When perpendicular features are at the MMC, they shall be perfectly oriented to each other as indicated by the dr
34、awing. 4. As the size of a feature departs from the MMC, variations in form, location and orientation are permissible. TIA-604-5-D 3 2 Adapter standard 2.1 Adapter designation The complete designation for a FOCIS 5 connector adapter is: FOCIS 5 A - k - m where: A designates that it is the adapter k
35、defines the keying configuration m defines the mounting configuration 2.2 Adapter requirements FOCIS 5 adapters shall meet the requirements of this section. 2.2.1 Adapter interface dimensions The dimensional requirements for FOCIS 5 adapters are defined in Figure 2.2.1. 2.2.2 Adapter keying options
36、Two options have been defined for the adapter keying configuration: k = 1 Is the standard keying configuration for FOCIS 5 adapters, and is shown in Figure 2.2.1. k = 2 Is an alternative keying configuration, and is shown in Figure 2.2.2. 2.2.3 Adapter mounting options The only mounting option speci
37、fied is m = 0. The mounting features for this option are undefined. TIA-604-5-D 4 3 Plug standard 3.1 Plug designation The complete designation for a FOCIS 5 connector plug is: FOCIS 5 P m x n - k - a - c - t where: P designates that it is the plug m is the number of fiber arrays n is the number of
38、fibers per array k defines the keying configuration a is the angle of contact c designates whether the plug interface contains alignment pins or holes t designates the alignment pin/hole diameter 3.2 Plug requirements FOCIS 5 plugs shall meet the requirements of this section. 3.2.1 Plug interface di
39、mensions The dimensional requirements for FOCIS 5 plugs are defined in Figure 3.2.1. 3.2.2 Ferrule extension and contact force The travel of the ferrule relative to the plug body and the spring force on the ferrule are defined in Figure 3.2.2. 3.2.3 Number of fiber arrays option The six values defin
40、ed for the number of fiber arrays are specified in Table 1. Table 1 Number of Fiber Arrays Options Fiber Arrays Option Number of Fiber Arrays Maximum number of fibers m = 1 1 12 m = 2 2 24 m = 3 3 36 m = 4 4 48 m = 5 5 60 m = 6 6 72 3.2.4 Number of fibers per array option The five values defined for
41、 the number of fibers in a single array are specified in Table 2. For plugs with more than one array of fibers (m1), the number of fibers in the plug is equal to the number of fiber arrays (m) times the number of fibers per array (n), or m x n. The fiber configurations are shown in Figures 3.2.3a th
42、rough 3.2.3f. TIA-604-5-D 5 Table 2 Number of Fibers per Array Options Fibers per Array Option Number of Fibers per Array n = 4 4 n = 6 6 n = 8 8 n = 10 10 n = 12 12 3.2.5 Plug keying option Only a single keying option for FOCIS 5 plugs has been defined, k = 1. The k=1 option is shown in Figure 3.2.
43、1. 3.2.6 Contact angle option The contact angle is the angle between the plane of contact between mating fibers and a plane perpendicular to the optical axis of the plug. Two options have been defined for the contact angle: a = 0, designates an angle of 0 a = 8, designates an angle of 8 The dimensio
44、nal requirements are defined in Figure 3.2.5. 3.2.7 Plug interface option Two options have been defined for the plug interface: c = 1, to designate a plug interface that contains alignment pins (shown in Figure 3.2.1). c = 2, to designate a plug interface that contains alignment holes. 3.2.8 Alignme
45、nt pin/hole diameter option Alignment pin/hole diameter options for FOCIS 5 plugs are specified in Table 3. Table 3 Alignment Pin/Hole Diameter Options Dimensions (mm) Alignment Pin Diameter Alignment Hole Diameter Option Minimum Maximum Minimum Maximum t = 1 0.698 0.699 0.699 0.700 t = 2 0.697 0.69
46、9 0.699 0.701 Note: Alignment Pin/Hole Diameter Option t = 1 is typically used in single-mode fiber applications, t = 2 for multimode applications. TIA-604-5-D 6 4 Applications The FOCIS 5 adapter requirements may be extended to hybrid adapters and receptacles. 4.1 Hybrid adapters A hybrid adapter p
47、rovides an optical connection between plugs of two different types. A hybrid adapter between a FOCIS 5 connector and another connector would have the dimensions of Figure 2.2.1 on one side of the centerline or optical plane and the corresponding dimensions of the other type on the other side. 4.2 Re
48、ceptacles A receptacle provides an optical connection to a device such as an optical source or detector. It is in effect half of an adapter. A receptacle for FOCIS 5 plugs shall be designed to intermate with an option c = 2 plug. TIA-604-5-D 7 Figure 2.2.1 Adapter (sheet 1) TIA-604-5-D 8 Dimensions
49、(mm) Reference Minimum Maximum Notes E 8.54 8.74 F 9.6 9.7 H 12.6 - I 8.2 8.4 K - 1.39 L 0.0 0.2 1 M 1.6 2.0 N 2.4 2.6 O 5.0 5.1 P 5.7 5.9 R 7.8 - S 3.4 3.6 V 0.95 1.15 W 11.8 12.2 X 3.4 - AA 45 48 AB 45 50 1) This is the distance from the Mechanical Datum to the feature. The feature may be to the left or to the right of the Datum. Figure 2.2.1 Adapter (sheet 2) TIA-604-5-D 9 Note: Figure shows location of keyway for k = 2 adapter option. Figure 2.2.2 - Adapter, k = 2 Option TIA-604-5-D 10 NOTE: A. Shown as optio
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