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 EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-4834 (To be TIA/EIA-604-14) FOCS 14 FIBER OPTIC CONNECTOR INTERMATEABILITY STANDARD TYPE SMC TABLE OF CONTENTS 1 Introduction 1.1 Scope 1.2 Descripti
8、on 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 2.2.2 Adapter Keying Options 2.2.3 Adapter Mounting Options 3 Plug Standard 3.1 Plug
9、 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 Interface Option 3.2.7 Alignment Pin/Cavity Option Active Device Receptacle Port Int
10、erface 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 Option 4.2.6 Alignment Pin Option 5 Applications 5.1 Hybrid adapters 5.2 Socket TIA
11、 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 EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
12、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 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.
13、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 Angle 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
14、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 P4834A Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without licens
15、e from IHS-,-,-Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo 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 standard for connect
16、ors 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 connector plug is moun
17、ted 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 external cable connect
18、or 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 intermated connector assembli
19、es 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 connector assembly is defin
20、ed 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 components are not within th
21、e 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, however, shall be co
22、nsidered 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 performance the distributions
23、 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 Telecommunications Industry Associati
24、on Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-4834 (To be TIA/EIA-604-14) Cases of combinations of connectors, adapters and receptacles where mechanical intermateability or the common level of performance is not achieve
25、d 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 Practices, the following shall apply: 1. Where a tolerance of form is not specified, the limits of the
26、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. Where interrelated features of size (features shown with a common axis or center plane) have no geom
27、etric 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 (f
28、eatures 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 perpendicular features are at the MMC, they shall be perfectly oriented to each other as indicated by t
29、he 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 Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduct
30、ion or networking permitted without license from IHS-,-,-SP-4834 (To be TIA/EIA-604-14) 2 Adapter Standard 2.1 Adapter Designation The complete designation for a FOCIS x adapter is: FOCIS xA - k- II) where: A designates that it is the adapter, k defines the keying configuration, m defines the mounti
31、ng configuration. 2.2 Adapter Requirements FOCIS x adapters shall meet the requirements of this section. 2.2.1 Adapter 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 key
32、ing configuration: k= 1 designates the standard keying configuration for FOCIS x adapters and is shown in figure 2-2-1. 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; 07/14/2
33、000 File: TIA-604-1 4-SMC-SP4834A Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo 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 fo
34、r a FOCIS x plug is: FOCISx P-n- k-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 p
35、inkavity diameter option. 3.2 Plug 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 t
36、o the body of the plug and the spring 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
37、option specified for FOCIS x plugs 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
38、x plugs (in drawing a=a): a=O a=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. desig
39、nates a plug interface with cavities 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 Telecom
40、munications Industry Association Provided by IHS under license with EIANot for ResaleNo 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 options have been defined to cover the fiber applica
41、tions: 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 Options TIA SC FO-6.3; 07/14/2000 5 File: TIA-604-1
42、4-SMC-SP4834A Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SP-4834 (To be TIA/EIA-604-14) 4 A receptacle provides an optical connection to a device such as an optical source
43、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 where: R designates that it is a receptacle, n designates the number of fibers, k defines the keying configuration, a is the angle of
44、 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 receptacles shall meet the requirements of this section. 4.2.1 Receptacle Interface Dimensions The dimensional requirements for FOCIS
45、 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 Keying 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 Th
46、e 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 dimen
47、sions of the receptacle interface are shown in figure 4-2-1. 4.2.5 Receptacle Interface Option Only a single receptacle interface option, c=l, for FOCIS x receptacles has been defined to designate that the receptacle will contain alignment pins and will intermate with an option c=2 plug (with alignm
48、ent cavities). 4.2.6 Alignment Pin Option Alignment pin options for FOCIS x receptacle are specified in table 3-2-7 6 TIA SC FO-6.3; 07/14/2000 Fi le: TI A-604-1 4-S MC-S P4834A Copyright Telecommunications Industry Association Provided by IHS under license with EIANot for ResaleNo reproduction or n
49、etworking permitted without license from IHS-,-,-SP-4834 (To be TIA/EIA-604-14) 5 Applications 5.1 Hybrid adapters A hybrid adapter provides an optical connection between plugs of two different types. The FOCIS x adapter requirements may be extended to apply to hybrid adapters. A hybrid adapter between a FOCIS x plug and another plug would have the dimensions of figure 3-2-1 on one side of the centerline or opti
