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 Copyright Telecommunications Industry Association Provided by IHS
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6、licable regulatory requirements. It is the responsibility 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 Project No. 3-3957-RV4, formulated under the cognizance of the TIA FO-4 Commi
7、ttee on Fiber Optics, FO-4.3 Subcommittee on Passive Optical Devices and Components). Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY AS
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24、, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS.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-604-5-D i FOCIS 5 FIBER OPTIC CONNECTOR INTERMAT
25、EABILITY STANDARD Type MPO CONTENTS 1 INTRODUCTION 1 2 ADAPTER STANDARD 4 3 PLUG STANDARD 5 4 APPLICATIONS 7 5 ANNEX A 18 Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-604
26、-5-D iiCopyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-604-5-D 1 1 Introduction 1.1 Scope FOCIS 5 presents the intermateability standard for connectors with the commercial d
27、esignation of MPO, and is used as an addendum to TIA/EIA-604, Fiber Optic Connector Intermateability Standards. The provisions of TIA/EIA-604 apply to this document. 1.2 Objective Intermateability standards define the minimum physical attributes of mating connector components. Fully dimensioned comp
28、onents are not within the scope or intent of FOCIS 5. The requirements of FOCIS 5 have been selected with the objectives of 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 th
29、eir common level of performance. The common level of performance of an intermated connector assembly is the least demanding 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 objectiv
30、es for FOCIS 5 may be limited by the following considerations: 1.3.1 Configuration Options There are configuration options in 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
31、; Both plugs should have the same number of fibers per array, option n; Both plugs should have the same alignment pin/hole diameter, 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
32、should have a different plug interface, option c. 1.3.2 Common Performance The locations of the optical cores, as shown in Figure 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 ce
33、ntered on their respective true positions. This standard does not control the intrinsic loss that may occur between fibers in a connector assembly. Intrinsic loss between fibers must be added to the basic connector loss. Copyright Telecommunications Industry Association Provided by IHS under license
34、 with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-604-5-D 21.4 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 dimensions f
35、or 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 tolera
36、nce 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 (features show
37、n 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 drawing.
38、 4. As the size of a feature departs from the MMC, variations in form, location and orientation are permissible. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-604-5-D 32 A
39、dapter 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 defines the keying configuration m defines the mounting configuration 2.2 Adapter requirements FOCIS 5 adapters shall meet the requireme
40、nts 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 Two options have been defined for the adapter keying configuration: k = 1 Is the standard keying configuration for FOCIS 5 adapters, and
41、 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 specified is m = 0. The mounting features for this option are undefined. Copyright Telecommunications Industry Association Provided by IHS un
42、der license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-604-5-D 43 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 o
43、f fiber arrays n is the number of 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 thi
44、s section. 3.2.1 Plug interface dimensions 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
45、arrays option The six values defined 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 fibersm = 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 o
46、ption The five values defined for 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 configuratio
47、ns are shown in Figures 3.2.3a through 3.2.3f. Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TIA-604-5-D 5Table 2 Number of Fibers per Array Options Fibers per Array Option Nu
48、mber 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 3.2.1. 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 dimensional requirements are defined in Figure 3.2.5. 3.2.7 Plug interface option
