TIA-604-1-1996 FOCIS 1 Fiber Optic Connector Intermateability Standard《FOCIS 1 光纤连接器互配性标准》.pdf

1、 TIA-604-1 April 1996 (r 01/2012) FOCIS 1 Fiber Optic Connector Intermateability Standard NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improv

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22、UCH LIMITATIONS. EIA TIA-b04-1 96 3234600 0573804 TbO 9 TIA/EIA 604-1 FOCIS 1 FOCIS I FIBER OPTIC CONNECTOR INTERMATEABILITY STANDARD CONTENTS 1 GENERAL 2 PLUG INTERMATEABILITY STANDARD 3 ADAPTER INTERMATEABILITY STANDARD i EIA TIA-604-1 9b 3234b00 0573805 T7 TIA/EIA 604-1 FOCIS i EIA TIA-604-1 96 W

23、 3234600 0573806 833 TIA/EIA 604-1 FOCIS 1 FOCIS I FIBER OPTIC CONNECTOR INTERMATEABILITY STANDARD (From TIA Standards Proposal No. 2994 formulated under the cognizance of TIA FO- 6.3, Subcommittee on Fiber Interconnecting Devices.) This document is part of the series of test standards included with

24、in TINEIA-604, Fiber Optic Connector Intermateability Standards (FOCIS). 1 GENERAL 1.1 Commercial designation The commercial designation for the FOCIS 1 connector is the biconic connector. 1.2 Introduction This standard covers those features that are required to insure that biconic connectors confor

25、ming to the requirements of this standard are intermateable and that physical contact will be established between the plugs including the polished glass surfaces of the intermated connector assemblies. 1.3 Description A FOCIS 1 conrrctor assembly consists of two connector plugs and an adapter. The p

26、lugs have external conical surfaces that mate with internal conical surfaces of a sleeve, a part of the adapter. These conical surfaces are the critical elements of the biconic connector. The FOCIS I connector depends on contact being established between the conical surfaces of the plugs and the sle

27、eve in order to align the two fibers that are being joined. For physical contact to also occur, contact must also be established between the polished glass surfaces of the two mating plugs, as well as the conical surfaces. The spring force applied to the plugs must be shared approximately equally be

28、tween the tips of the plugs and the conical surfaces. This dual contact is achieved as a result of deformation of the materials in the plugs and sleeves. To maintain dual contact requires extremely tight manufacturing tolerances in both the sleeves and the plugs. The manufacturing tolerances that ar

29、e used are in fact dependent on the properties of the materials used in the plugs and the sleeves. The degree of physical contact that is achieved in a biconic connector assembly, an adapter and two mated plugs, is determined by the taper length of the plugs and the separation of the cones in the sl

30、eeve. If the plugs are too short or the separation of the cones in the sleeves are too large, physical contact will not be made. If the plugs are too long or the sleeves are too short, the conical surfaces of the sleeve and the plugs will not make contact, and the plugs will not be accurately aligne

31、d. Also, the tips of the plugs will carry too much of the load, and the polished ends of the fibers may be damaged. EIA TIA-bn4-II 96 = 32346O 0573807 77T TIA/EIA 604-1 FOCIS 1 Plug taper length is defined by a measurement that employs a calibration ball, and a plug gage, see figures 2 and 3. The se

32、paration of the cones in a biconic sleeve is defined by the ES1 measurement that compares the sleeve under test with a primary master sleeve gage. In practice, production and secondary master gages are used to transfer the calibration of a primary gage see 3.5. 1.4 Performance This document specifie

33、s the features that are required to ensure common levels of performance in connector assemblies of plugs and sleeves from suppliers whose products meet a common performance specification and the requirements of this document. 1.5 Materials The mechanical properties of the materials in the sleeves an

34、d the conical portion of the plug must be equivalent with regards to; coefficient of thermal expansion, coefficient of moisture expansion, and deformation under load. Where biconic connector assemblies are to be intermated with plugs and sleeves of different materials the, equivalence of the materia

35、ls that are used shoiild be verified. The tolerances in tables 2 and 5 have been developed with sleeves and plugs of Plaskon 29298. Plaskon 29298 is a trade name of a product supplied by Plaskon Electronics, Toledo, Ohio. This information is given for the convenience of users of this standard and do

36、es not constitute an endorsement by ANSITTIA or TIA of the product named. Equivalent products can be used if they can be shown to lead to the same results. 2 PLUG INTERMATEABILITY STANDARD 2.1 Plug Designation The complete designation for a FOCIS 1 connector plug is: FOCIS 1P-k where P designates th

37、at it is a plug k defines the keying option Only a single keying option, k= 1, has been defined for the FOCIS 1P plug. The dimensional requirements for k = 1 are in figure 1. 2.2 Plug dimensional requirements The dimensional requirements for intermateable physical contact biconic plugs are in figure

38、s 1 and 2. 2 EIA TIA-604-1 96 3234600 0573808 606 TIAIEIA 604-1 FOCIS 1 2.3 Gage information Plug gage construction and calibration information is contained in figures 2 and 3. 3 ADAPTER MTERMATEABILITY STANDARD 3.1 Adapter Designation The complete designation for a FOCIS 1 connector adapter is: FOC

39、IS IA-k-m where A designates that it is a plug k defines the keying option m defines the mounting option. Only a single keying option, k = I, has been defined for the FOCIS IA adapter. The dimensional requirements for k = I are in figure I. Only a single mounting option, m = 1, has been defined for

40、the FOCIS IA adapter. The dimensional requirements form = 1 are in figure 8. 3.2 Adapter dimensional requirements The dimensional requirements for physical contact biconic adapters are in figure 4. 3.3 Adapter sleeves The requirements for the sleeves, which are part of the adapter, are in figure 5.

41、The measurement ES1 in figure 5 defines the separation of the conical elements in the sleeve. The measurement ES2 characterizes the angle of the conical surfaces of the sleeve in the area in which the plugs contact the sleeve. See 3.5 for a description of ES1 measurements and 3.6 for a description o

42、f ES2 measurements. 3.4 Sleeve gages Sleeve gages are used to calibrate the instruments used to measure ES1 and ES2 on adapter sleeves. The dimensional requirements for sleeve gages are given in figure 6. It has not been possible to manufacture sleeve gages with sufficient precision to make ES1 meas

43、urements without a calibration factor. The sleeve gages used to measure sleeves are calibrated for ES1 measurements against Master Gages. A three level hierarchical system of master gages may be used to avoid wear on the master gages: Production Gages - used for routine measurements in tk production

44、 of sleeves. These gages are calibrated from Secondary Master gages. Secondary Master Gages - used to calibrate Production Gages. These gages are calibrated from the Primary Master gage. 3 EIA TIA-bQ4-L 76 I 323YbOO 0533807 5Y2 w Item being measured or calibrated Biconic Sleeve Production Sleeve Sec

45、ondary Master Gage TIA/EIA 604-1 FOCIS I Gage to be usedfor Calibration Production Sleeve Gage Secondary Master Gage Primary Master Gage Primary Master Gage - used to calibrate Secondary Master Gages. The only difference between these gages is in their calibration. The calibration process for primar

46、y master gages is described in 3.7. The calibration procedures for production and secondary master gages are described in 3.5. It should be noted that differences have been observed between ES1 measurements of a biconic sleeve made on different instruments using a common master gage for calibration.

47、 The calibration factor of each biconic sleeve gage should be established for the instrument with which it will be used. 3.5 ES1 measurements ES1 measurements are made to determine conformance of a biconic sleeve to the ES1 requirement in figure 5, or to calibrate a production or secondary master sl

48、eeve gage. ES1 measurements define the separation of the conical surfaces in biconic sleeves or sleeve gages. ES1 measurements are made with two balls of diameter R as illustrated in figure 7. The instrumentation for ES1 and ES2 measurements are illustrated in figure 7. ES1 is the difference between

49、 a measurement made with a calibration gage and a measurement made with the part being measured. ES, = X, - X, +Cf where X, is the instrument reading with the part inserted between the gage balls. X, is the instrument reading with the sleeve gage being used for calibration inserted between the gage balls. C, is the calibration factor of the sleeve gage. THE CALIBRATION SCBEDULE FOR THE GAGES TO BE USED IN ES1 MEASUREMENTS Is IN TEE FOLLOWING TABLE: 3.6 ES2 measurements ES2 measurements are made to determine conformance of a biconic sleeve to the ES2 requirement in figure 5. ES2 me