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1、August 17,2000 SUBJECT: Standards Proposal No. 4834, Proposed New Standard “FOCIS 14 Fiber Optic Connector Intermateability Standard, Type SMC” (if approved, to be published as TWEIA-604- 14) BACKGROUND: The attached material was prepared by the TIA FO-6.3.4 Working Group of the FO-6.3 Subcommittee
2、on Fiber Optic Interconnecting Devices, and was approved by the Chairman of the Committee. SP-4834 is herewith submitted to TIA membership and others concerned as a step toward standardization. Please use the following format for comments: Company Name - Comment No. Type of Comment Reference Suggest
3、ed Change Rationale for Technical Change - Technical or Editorial - Page No., Clause No., Line - Change From: . To: . Add:, Delete: COMMENT PERIOD EXPIRES: OCTOBER 17,2000 Prior to this date, comments may be submitted for consideration as noted on page two of this form. Following the expiration of t
4、he comment period, and consideration by the relevant committee, this Proposal will be submitted to the TIA Technical Standards Subcommittee (TSSC) for final approval as to acceptance or rejection of this Standards Proposal. Eng# 59250 2500 Wilson Boulevard, Suite 300 Ariington, VA 22201 7031907-7700
5、 FAX 7031907-7727 SE? Representing the telecommunications industry in association with the Electronic Industries Alliance V added roughness R,0.1; note 2 deleted 3-2-1 a/2 3-2-1 b 3-2-2 14 3-2-2 dimensions I, V notes dimension I and force F values changed notes deleted fiber options dimension T adap
6、tion to MT ferrule standard error correction; min value deleted 3-2-3 3-2-5 3-2-5 4-2- 1 I1 reference plane dimension I relocated pin assembly assembly is fixed dimensions 19 4-2- 1 I2 BC added; I, T and V changed, i TIA SC FO-6.3; 07/14/2000 Fi le: TI A-604-1 4-S MC-S P4834A Copyright Telecommunica
7、tions Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- SP-4834 (To be TIA/EIA-604-14) FOCS 14 FIBER OPTIC CONNECTOR INTERMATEAB
8、ILITY STANDARD TYPE SMC TABLE OF CONTENTS 1 Introduction 1.1 Scope 1.2 Description 1.3 Objective 1.4 Limitations 1.4.1 Configuration Options 1.4.2 Common Performance 1.5 Drawing Practices 2.1 Adapter Designation 2.2 Adapter Requirements 2 Adapter Standard 2.2.1 Adapter Port Interface Dimensions 2.2.
9、2 Adapter Keying Options 2.2.3 Adapter Mounting Options 3 Plug Standard 3.1 Plug Designation 3.2 Plug Requirements 3.2.1 Plug Interface Dimensions 3.2.2 Ferrule Travel and Contact Force 3.2.3 Number and Configuration of Fiber Option 3.2.4 Plug Keying Option 3.2.5 Contact Angle Option 3.2.6 Plug Inte
10、rface Option 3.2.7 Alignment Pin/Cavity Option Active Device Receptacle Port Interface 4 4.1 Receptacle Designation 4.2 Receptacle Requirements 4.2.1 Receptacle Interface Dimensions 4.2.2 Number of Fiber Options 4.2.3 Receptacle Keying Option 4.2.4 Contact Angle Option 4.2.5 Receptacle Interface Opt
11、ion 4.2.6 Alignment Pin Option 5 Applications 5.1 Hybrid adapters 5.2 Socket TIA SC FO-6.3; 07/14/2000 1 1 1 1 1 1 1 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 5 6 6 6 6 6 6 6 6 6 7 7 7 ii File: TIA-604-1 4-SMC-S P4834A Copyright Telecommunications Industry Association Provided by IHS under license with EIALic
12、ensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- SP-4834 (To be TIA/EIA-604-14) LIST OF FIGURES 8 Figure 2.2.3 . Adapter Mounting Cutout Dimensions (m=1) . 9 Figure 3-2-1 a . Plug Interface
13、 Dimensions (sheet l), (c=1 and a=O) 10 Figure 3-2-1 a . Plug Interface Dimensions (sheet 2) 11 Figure 3-2-1 b . Dimensions of Cavity Gauge Pin . 11 Figure 3.2.2 . Ferrule Travel and Contact Force (c=1 and a=O) . 12 Figure 3.2.3 . Fiber Options and Locations 13 Figure 3.2.5 . Dimensions of Contact A
14、ngle Options . 14 Figure 4.2.1 . Active Device Receptacle Interface (sheet 1) 15 Figure 4-2-1 . Dimensions of Active Device Receptacle Interface (sheet 2) . 16 LIST OF TABLES Table 3.2.7 . Dimensions of Alignment Pin and Cavity Options . 5 TIA SC FO-6.3; 07/14/2000 iii Fi le: TI A-604-1 4-S MC-S P48
15、34A Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Telecommunications Industry Associa
16、tion Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- SP-4834 (To be TIA/EIA-604-14) 1 Introduction 1.1 Scope FOCIS x presents the intermateability
17、standard for connectors with the commercial designation of SMC, and is used as an addendum to TINEIA-604, Fiber Optic Connector Intermateability Standards. The provisions of TINEIA-604 apply to this document. 1.2 Description . The ferrule is spring loaded in the direction of the optical axis. The co
18、nnector plug is mounted using a two-sided latching mechanism. It has an integrated mechanical key used to orient and limit the relative position between the connector and the component to which it is mated. The optical alignment precision is realized by two 0.7mm pins which may be installed in an ex
19、ternal cable connector or in the component to which it is mated. 1.3 Objective The requirements of FOCIS x have been selected with the objectives of ensuring that a specified combination of connector assemblies conforming to the requirements of FOCIS x will mechanically intermate, and that intermate
20、d connector assemblies will meet their 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 TINEIA-604. A connect
21、or assembly is defined as an assembly of a . . or a c=l plug, an adapter, and a c=2 plug, c=2 plug, and a receptacle See clause 3.2.6 for the definition of option c=l and c=2. Intermateability standards define the minimum physical attributes of mating connector components. Fully dimensioned componen
22、ts are not within the scope or intent of this document. 1.4 Limitations 1.4.1 Configuration Options There are configuration options in FOCIS x that impose limitations on the combination of plugs that should be combined in a connector assembly: . . . . 1.4.2 Common Performance The following factors,
23、however, shall be considered in the application of common performance: . Common performance does not account for intrinsic loss that may occur between the fibers being joined in a connector assembly and must be added to the basic connector loss; see TINEIA-604, section 6. . To apply common performan
24、ce the distributions of the position of the fiber cores, as shown in figure 3-3, in the populations of connectors that are to be intermated, must be centered on the true positions of the respective fiber locations. 1 TIA SC FO-6.3; 07/14/2000 File: TIA-604-1 4-SMC-SP4834A Copyright Telecommunication
25、s Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- SP-4834 (To be TIA/EIA-604-14) Cases of combinations of connectors, adapters
26、 and receptacles where mechanical intermateability or the common level of performance is not achieved should be resolved through the cooperation of the user and the connector, adapter and active device manufacturer). 1.5 Drawing Practices To be in compliance with ANSI and IS0 Engineering Drawing Pra
27、ctices, the following shall apply: 1. Where a tolerance of form is not specified, the limits of the dimensions 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 maximum material condition (MMC). 2.
28、Where interrelated features of size (features shown with a common axis or center plane) have no geometric 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 shal
29、l 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 limits of the dimensions for a feature control the orientation tolerance as well as the size. When per
30、pendicular features are at the MMC, they shall be perfectly oriented to each other as indicated by the drawing. 4. As the size of a feature departs from the MMC, variations in form, location and orientation are permissible. 2 TIA SC FO-6.3; 07/14/2000 Fi le: TI A-604-1 4-S MC-S P4834A Copyright Tele
31、communications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- SP-4834 (To be TIA/EIA-604-14) 2 Adapter Standard 2.1 Adapter D
32、esignation The complete designation for a FOCIS x adapter is: FOCIS x A - k - II) where: A designates that it is the adapter, k defines the keying configuration, m defines the mounting configuration. 2.2 Adapter Requirements FOCIS x adapters shall meet the requirements of this section. 2.2.1 Adapter
33、 Port Interface Dimensions The dimensional requirements for FOCIS x adapters are defined in figure 2-2-1. 2.2.2 Adapter Keying Options One option has been defined for the adapter keying configuration: k= 1 designates the standard keying configuration for FOCIS x adapters and is shown in figure 2-2-1
34、. 2.2.3 Adapter Mounting Options Two options have been specified for FOCIS x adapter mounting. m=O designates adapters whose mounting features are undefined. 3 TIA SC FO-6.3; 07/14/2000 File: TIA-604-1 4-SMC-SP4834A Copyright Telecommunications Industry Association Provided by IHS under license with
35、 EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- SP-4834 (To be TIA/EIA-604-14) 3 Plug Standard 3.1 Plug Designation The complete designation for a FOCIS x plug is: FOCISx P - n - k
36、- a - c- t where: P n k defines the keying configuration, a C t designates that it is the plug, defines the number and configuration of fibers, defines the angle of contact, designates whether the plug interface has pins or cavities for pin, designates the alignment pinkavity diameter option. 3.2 Pl
37、ug Requirements FOCIS x plugs shall meet the requirements of this section. 3.2.1 Plug Interface Dimensions The dimensional requirements for FOCIS x plugs are shown in figure 3-2-1. 3.2.2 Ferrule Travel and Contact Force The ferrule travel (axial deflection) relative to the body of the plug and the s
38、pring force on the ferrule are defined and shown in figure 3-2-2. 3.2.3 Number and Configuration of Fiber Option The values defining the number n of fibers, the fiber configurations and locations are specified in figure 3-2-3. 3.2.4 Plug Keying Option The only keying option specified for FOCIS x plu
39、gs is k=l and is shown in figure 3-2-1. 3.2.5 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 connector. Two contact angle options have been defined for FOCIS x plugs (in drawing a=a): a=O a=
40、8 designates an angle of O“. designates an angle of 8“. The dimensional requirements are defined in figure 3-2-5. 3.2.6 Plug Interface Option Two options have been defined for the plug interface: c=l c=2 designates a plug interface which contains alignment pins. designates a plug interface with cavi
41、ties to accept alignment pins Figure 3-2-1 a shows the plug interface with contact angle in the c=l configurations. Figure 3-2-5 shows the plug interface in the c=l and c=2 configurations. 4 TIA SC FO-6.3; 07/14/2000 Fi le: TI A-604-1 4-S MC-S P4834A Copyright Telecommunications Industry Association
42、 Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license from IHS -,-,- SP-4834 (To be TIA/EIA-604-14) Option t=l (SM) t=2 (MM) 3.2.7 Alignment PinlCavity Option Two opti
43、ons have been defined to cover the fiber applications: OBC (Pin) mm OBD (Cavity) mm Min Max Min Max 0.698 0.699 0.699 0.700 0.697 0.699 0.699 0.701 t=l t=2 typically used for single-mode applications, typically used for multimode applications. Table 3-2-7. Dimensions of Alignment Pin and Cavity Opti
44、ons TIA SC FO-6.3; 07/14/2000 5 File: TIA-604-1 4-SMC-SP4834A Copyright Telecommunications Industry Association Provided by IHS under license with EIALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:29:04 MDTNo reproduction or networking permitted without license fr
45、om IHS -,-,- SP-4834 (To be TIA/EIA-604-14) 4 A receptacle provides an optical connection to a device such as an optical source or detector. Active Device Receptacle Port Interface 4.1 Receptacle Designation The complete designation for a FOCIS x plugs receptacle is: FOCIS x R - n - k - a - c - t wh
46、ere: R designates that it is a receptacle, n designates the number of fibers, k defines the keying configuration, a is the angle of contact, C designates whether the receptacle interface has pins or cavities, t designates the align ment pi ndcavit ies diameter. 4.2 Receptacle Requirements FOCIS x re
47、ceptacles shall meet the requirements of this section. 4.2.1 Receptacle Interface Dimensions The dimensional requirements for FOCIS x receptacle are defined in figure 4-2-1. 4.2.2 Number of Fiber Options The values n defining the number of fibers are specified in figure 3-2-3. 4.2.3 Receptacle Keyin
48、g Option The only keying option specified for FOCIS x receptacle is k=l and is shown in figure 4-2-1. 4.2.4 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 connector. Two options have been defined for the contact angle (a=a): a=O a=8 designates an angle of O“, designates an angle of 8“. The contact angle options and dimensions of the receptacle interface are shown in figure 4-2-1. 4.2.5 R