1、 TIA STANDARD FOCIS-13 Fiber Optic Connector Intermateability Standard, Type SFOC 1.25 TIA-604-13-A (Revision of TIA-604-13) AUGUST 2004 TELECOMMUNICATIONS INDUSTRY ASSOCIATION Representing the telecommunications industry in association with the Electronic Industries Alliance ANSI/TIA-604-13-A-2004
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6、andard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 3-4748-RV1, formulated under the cognizance of the TIA FO-4.3 Subcommittee on Fiber Optic Interconnecting Devices and Passive Componen
7、ts.) Published by TELECOMMUNICATIONS INDUSTRY ASSOCIATION 2004 Standards and Technology Department 2500 Wilson Boulevard Arlington, VA 22201 U.S.A. PRICE: Please refer to current Catalog of TIA TELECOMMUNICATIONS INDUSTRY ASSOCIATION STANDARDS AND ENGINEERING PUBLICATIONS or call Global Engineering
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18、MITATION ANY AND ALL INDIRECT, SPECIAL, 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 T
19、HE POSSIBILITY OF SUCH DAMAGES. THE FOREGOING NEGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATION.TIA-604-13-A i FOCIS 13 FIBER OPTIC CONNECTOR INTERMATEABILITY STANDARD Type SFOC 1.25 CONTENTS 1 INT
20、RODUCTION 1 2 ADAPTER STANDARD 3 3 PLUG STANDARD 5 4 APLICATIONS 7 5 POLARIZATION MAINTENANCE 7 TIA-604-13-A ii TIA-604-13-A 1 FOCIS 13 FIBER OPTIC CONNECTOR INTERMATEABILITY STANDARD Type SFOC 1.25 1 Introduction 1.1 Scope FOCIS 13 presents the Intermateability standard for simplex and duplex conne
21、ctors with the commercial designation SFOC 1.25 (Shuttered Fiber Optic Connector 1.25mm) and is issued 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 ph
22、ysical attributes of mating connector components. Fully dimensioned components are not within the scope or intent of FOCIS 13. The requirements in FOCIS 13 have been selected with the objective of ensuring that any combination of plugs and adapters conforming to the requirements of FOCIS 13 will mec
23、hanically intermate, and that intermated connector assemblies will meet a 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
24、assembly; see TIA/EIA 604. 1.3 Limitations Realization of the objectives for FOCIS 13 may be limited by the following considerations: 1.3.1 Configuration Options There are configuration options for both plugs and adapters in FOCIS 13 that impose limitations on the combinations of plugs and adapters
25、that should be combined in a connector assembly. For plugs to be inserted in the adapter the keying option, k, for both plugs must be compatible with the keying option of the adapter. Both plugs should have the same ferrule diameter option, t. An assembly with different diameter options may have a h
26、igher loss than anticipated. Both plugs should have the same angle of contact option, a. An increase in loss may be expected if plugs with different contact options are mated, and the polish on the ferrules may be damaged. TIA-604-13-A 2 1.3.2 Common Performance The following considerations limit th
27、e application of common performance: The location of the optical cores, Figure 3.2.1a (Sheet 1), and the apex offsets, clause 3.2.5, are defined, without tolerances, by their true positions. To apply common performance the distributions of the actual positions of these features should be centered on
28、 their respective true positions. Tuning of the connector plugs may improve performance when plugs are mated with plugs that have been similarly tuned. Tuning, however, offsets the cores relative to the center of the ferrule and common performance can not be expected between tuned plugs and untuned
29、plugs. Tuned plugs are assembled so the offset of the fiber falls in a preferred location with respect to the key, see clause 3.2.8. As an alternative to tuning for fiber offset, plugs could be tuned for apex offset. This standard does not control the intrinsic loss that may occur between fibers in
30、a connector assembly. Intrinsic loss between fibers must be added to the basic connector loss. 1.3.3 Resolution Cases of combinations of plugs and adapters where mechanical intermateability or the common level of performance is not achieved should be resolved through the cooperation of the user and
31、the connector and adapter manufacturer(s). 1.4 Drawing Practices To be in compliance with ANSI and ISO Engineering Drawing Practices, the following shall apply: 1. Where the tolerance of form is not specified, the limits of the dimensions for a feature control the form as well as the size. The combi
32、ned 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 geometric tolerance of location or runout specified, the limits of the dimen
33、sions for a feature control the location tolerance as well as the size. When interrelated features are at the MMC they shall be perfectly located to each other as indicated by the drawing. 3. Where perpendicular features (features shown at right angles) have no geometric tolerance of orientation or
34、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. 4. As the size of a feature departs from the MMC, variations in f
35、orm, location and orientation are permissible. TIA-604-13-A 3 2 Adapter Standard 2.1 Adapter Designation The designation for a FOCIS 13 adapter is FOCIS 13-A-d-n-k-m where A designates an adapter d defines the adapter design n is the number of plug ports k defines the keying configuration m defines
36、the mounting configuration 2.2 Adapter Requirements FOCIS 13 adapters shall meet the requirements of this section. 2.2.1 Adapter Interface Options There are two adapter interface options for FOCIS 13 adapters. The requirements for these interface options are: d = 1 Designates a simplex adapter inter
37、face that must meet the dimensional requirements of Figure 2.2.1a, Simplex Adapter Interface, Option d = 1. d = 2 Designates a duplex adapter interface that must meet the dimensional requirements of Figure 2.2.1b, Duplex Adapter Interface, Option d = 2. 2.2.2 Adapter Number of Plug Ports Options n =
38、 1 Designates a simplex adapter with one plug port. n = 2 Designates a duplex adapter with two plug ports. 2.2.3 Adapter Keying Options Keying refers to differences in the interface between FOCIS 13 plugs and adapters that affect the ability of plugs and adapters to be connected or that alter the pe
39、rformance of the resulting connector assembly. Only a single keying interface has been defined, k = 1. The dimensions for k = 1 are defined in Figure 2.2.1a. TIA-604-13-A 4 2.2.4 Adapter Mounting Options The adapter mounting options are defined in Table 1. Table 1 - Adapter Mounting Options Adapter
40、Mounting Option Type of Mounting m = 0 Unspecified Mounting m = 1 Panel mounting with either retention clips or fasteners m = 2 Panel mounting with fasteners only m = 3 Panel mounting with retention clips only Adapters whose mounting features are not defined are identified with the option m = 0. The
41、 dimensions of the surfaces of the adapter that interface with the mounting panel are defined by the cutouts in the panel on which the adapter is mounted. FOCIS 13 adapters for m=1, m=2, and m=3, shall be capable of being mounted on panels with the dimensions in Figure 2.2.4. 2.2.5 Adapter Sleeves T
42、he adapter sleeve may be either solid or split (resilient), and the sleeve should be floating within the adapter. The minimum inside diameter of the sleeve is specified by the force required to remove a gage pin from the sleeve. The force required to remove a gage pin from the sleeve in a FOCIS 13 a
43、dapter shall not exceed 2.5 newtons (255 gf). The procedures of FOTP 158 shall be used to measure the withdrawal force. Gage pin diameters are specified in Table 2. Table 2 - Gage Pin Diameters Sleeve Type Minimum (mm) Maximum (mm) Split, Resilient 1.2485 1.2495 Solid 1.2500 1.2505 The maximum insid
44、e diameter of a sleeve is limited by the common level of performance that the adapter is to achieve. TIA-604-13-A 5 3 Plug Standard 3.1 Plug Designation The complete designation for FOCIS 13 connector plug is: FOCIS 13 P-d-n-k-t-a where P designates a plug d defines the plug design n is the number o
45、f fibers k defines the keying arrangement t defines the ferrule diameter a is the angle of contact 3.2 Plug Requirements FOCIS 13 plugs shall meet the requirements of this section. 3.2.1 Plug Interface Option There are three plug interface options for FOCIS 13 plugs. The requirements for these inter
46、face options are: d = 1 The elements of the plug that control the interface with the adapter, for plugs offered under this option, must meet the dimensional requirements of Figure 3.2.1a, Simplex Plug Interface, Option d = 1. d = 2 The elements of the plug that control the interface with the adapter
47、, for plugs offered under this option, must meet the dimensional requirements of Figure 3.2.1b, Duplex Plug Interface, Option d = 2. 3.2.2 Number of Fibers Options n = 1 Designates a plug with one fiber. n = 2 Designates a plug with two fibers. 3.2.3 Plug Keying Option Keying refers to differences i
48、n the interface between FOCIS 13 plugs and adapters that affect the ability of plugs and adapters to mechanically mate. Only a single keying option for FOCIS 13 plugs has been defined, k = 1. The dimensions for k = 1 are defined in Figure 3.2.1a. TIA-604-13-A 6 3.2.4 Ferrule Diameter Option Ferrule
49、diameters for FOCIS 13 plugs are specified in Table 3. Table 3 - Ferrule Diameter t Minimum (mm) Maximum (mm) Fiber 1 1.2485 1.2495 Singlemode 2 1.2467 1.2495 Multimode The ferrule tolerance t = 1 is generally applied to plugs with singlemode fiber. The ferrule tolerance t = 2 is generally applied to plugs with multimode fiber. 3.2.5 Angle of Contact Option Contact angle is the angle that the plane of contact makes with a plane perpendicular to the axis of the ferrule. The plane of contact is defined as plane A-A in Figure 3.2.5. Two Options have b
