1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2014 SAE International All rights reserved. No part of this pub
3、lication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970
4、(outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS6479AEROSPACESTANDARDAS6479Issued 2014-01 Splicer, Fusion, Fiber Optic, Aerospace
5、RATIONALESuccessful use of fiber optic interconnects in high-performance platforms and applications depend on viable technologies for their repair and installation. Splicing is often desirable, either to repair a damaged interconnect or to install it, particularly where it is difficult or impossible
6、 to access all necessary locations for complete removal and replacement. However, reliable aerospace cable splices must endure conditions as adverse as those for which the original cable was specified. In addition, the splicing technology must be usable with a high degree of reliability under diffic
7、ult aerospace working conditions. Mechanical splices have shown some promise for the repair of multi-mode aerospace fiber cables, but they face daunting difficulties in splicing single mode fiber cables, which are being ever more seriously considered for new and upgraded systems. Fusion splicing has
8、 long been accepted in the telecom industry for making the highest performance fiber splices, both single mode and multi-mode, but the technology has not yet been found adaptable to stricter aerospace requirements. This standard is intended to define fusion splicers suitable for these requirements.
9、1. SCOPE This SAE Aerospace Standard (AS) defines fiber optic fusion splicers acceptable for the installation and repair of fiber optic interconnects in aerospace applications. Two different application environments are defined, depending on whether there is risk of flammable vapor or hazardous atmo
10、sphere being present. Equipment suited to flammable or hazardous environments may be over specified for factory, depot, or other relatively safe environments. To address these different application environments, two types of fusion splicer will be specified in applicable detail specifications: Type
11、I. For hazardous environments specifically including potentially flammable or explosive atmospheres. Type II. For environments in which it is established that there is no risk of flammable or explosive vapors being present. 2. REFERENCES 2.1 Applicable Documents The following publications form a par
12、t of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the
13、text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. SAE INTERNATIONAL AS6479 Page 2 of 63 2.1.1 Military Specifications Available from DLA Document Services, Building 4/D, 700 Robbins Ave
14、nue, Philadelphia, PA 19111-5094, Tel: 215-697-6396, http:/quicksearch.dla.mil/.MIL-PRF-28800F Test Equipment for Use with Electrical and Electronic Equipment, General Specification for 2.1.2 Military Standards Available from DLA Document Services, Building 4/D, 700 Robbins Avenue, Philadelphia, PA
15、19111-5094, Tel: 215-697-6396, http:/quicksearch.dla.mil/.MIL-HDBK-217 Reliability Prediction of Electronic Equipment MIL-HDBK-472 Military Standardization Handbook Maintainability Prediction MIL-STD-1472F Human Engineering MIL-STD-130N Identification Marking of U.S. Military Property MIL-STD-461F E
16、lectromagnetic Interference Characteristics Requirements for Equipment MIL-STD-464C Electromagnetic Environmental Effects, Requirements for Systems MIL-STD-810G Test Method Standard MIL-STD-882 System Safety MIL-STD-1678-2 Fiber Optic Cabling Systems Requirements and Measurements, Part 2 (Optical Me
17、asurements) MIL-STD-46855 Human Engineering Requirements for Military Systems, Equipment, and FacilitiesNAVAIRINST 2400.1 Spectrum-Dependent Systems: Those electronic systems, subsystems, devices and/or equipment that depend on the use of the OPNAVINST 2400.20F Electromagnetic Environmental Effects
18、(E3) and Spectrum Supportability Policy and Procedures2.1.3 ANSI Publications Available from American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ANSI Z136.2 Standard for the Safe Use of Lasers 2.1.4 IEEE Publications Availab
19、le from IEEE, 445 Hoes Lane, Piscataway, NJ 08854-4141, Tel: 732-981-0060, www.ieee.org.IEEE-STD-315 Graphic Symbols for Electrical and Electronics Diagrams (Including Reference Designation Letters) SAE INTERNATIONAL AS6479 Page 3 of 63 2.1.5 TIA/EIA Publications Copies are available from IHS Global
20、 Inc., tel. 800-854-7179 (U.S. and Canada), +1-303-397-7956 (Outside U.S. and Canada), http:/.TIA/EIA-455 Fiber Optic Test Procedures TIA/EIA-455-6B Cable Retention Test Procedure for Fiber Optic Cable Interconnecting Devices TIA/EIA-455-34 (FOTP-34) Interconnection Device Insertion Loss Test (ANSI/
21、TIA/EIA-455- 34A 95)2.1.6 International Electrotechnical Commission (IEC), CENELEC, and British Standards Institution (BSI) Publications Available from International Electrotechnical Commission, 3, rue de Varembe, P.O. Box 131, CH-1211 Geneva 20, Switzerland, Tel: +41 22 919 02 11, www.iec.ch.IEC 10
22、00-4-2 Electrostatic Discharge Requirements IEC 60950 Safety of information technology equipment 2.1.7 UL Publications Available from UL, 333 Pfingsten Road, Northbrook, IL 60062-2096, Tel: 847-272-8800, .UL1950 Safety of Information Technology Equipment, Including Electrical Business Equipment2.1.8
23、 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM D4169 Standard Practice for Performance Testing of Shipping Containers and Systems 2.1.9 National Fire Protection Agency (NFPA) Publicati
24、ons Available from NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471, Tel: 617-770-3000, www.nfpa.org.NFPA 1994 Standards for Chemical, Biological, Radioactive, and Nuclear Protective Ensembles 2.2 Related Publications The following publications are provided for information purposes only and are not
25、a required part of this SAE Aerospace Technical Report.2.2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.ARP5061 Guidelines for Testing and Support of Aerosp
26、ace, Fiber Optic, Inter-Connect Systems AS5750 Loss Budget Specification for Fiber Optic Links MA5405 Splices, Fiber Optics, For Aerospace Inter-Connection Systems AIR6031 Fiber Optic Cleaning SAE INTERNATIONAL AS6479 Page 4 of 63 2.2.2 Military Specifications Available from DLA Document Services, B
27、uilding 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6396, http:/quicksearch.dla.mil/.A-A-59799 Commercial Item Description: Fusion Splicer and Cleaver, Optical Fiber MIL-PRF-24623/6 Splice, Fusion, Fiber Optic Cable, Protector MIL-PRF-24623/7 Splice, Mechanical, Simplex Fiber
28、Optic Cable, AircraftMIL-PRF-49291 Optical Fiber, (Metric) General Specification for MIL-PRF-85045 Cables, Fiber Optic, (Metric) General Specification for 2.2.3 Military Standards Available from DLA Document Services, Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6396,
29、http:/quicksearch.dla.mil/.MIL-STD-1678 Fiber Optics Test Methods and Instrumentation MIL-STD-46855 Human Engineering Requirements for Military Systems, Equipment, and FacilitiesNAVAIR 01-01A-505-4 Installation for instance headphones for a radio set supplied with a loudspeaker, an external power un
30、it for use with a set having a built-in power supply, or a remote control unit for use with a set having integral controls.APPROVED EQUIPMENT TEST PROCEDURE: The test procedure furnished by the Government or furnished by a contractor in accordance with the requirements of the contract or order and a
31、pproved by the Government in accordance with the contractor order.ATE: For the purpose of this specification, the terms “automatic test equipment” (ATE) and automatic checkout equipment (ACE) are synonymous.BENCH-TOP EQUIPMENT: Bench-top equipment is designed to be used on a fixed bench or table or
32、on a mobile cart. Equipment that exceeds 5 kg in weight and has no handles, or exceeds 20 kg with or without a handle, is considered to be bench-top equipment.BIT: For the purpose of this specification, the term “built in test” (BIT) identifies the test approach using either “built in test equipment
33、” (BITE) or self-test capability or both.BITE: Any device that is part of, or permanently mounted in, the prime equipment and used for the express purpose of testing that equipment, either independently or in association with external test equipment.CALIBRATION INTERVAL: The maximum length of time b
34、etween calibration services during which a specified percentage of equipment is expected to remain within acceptable performance levels under normal conditions of handling and use.CERTIFICATION TIME: Certification time includes all time required to check the equipment parameters on all range and fun
35、ction settings and all inputs and outputs. Certification time does not include the time to repair and readjust the equipment as a result of a malfunction.COMPONENT BATTERIES: Batteries used as components designed for extended use and reliability equal to or exceeding that of other components (such a
36、s resistors or capacitors) that are incorporated into the equipment.CONFIGURATION: Configuration is used to identify two or more units from a single purchase description that differ in class or other electrical or mechanical characteristics.DESTRUCTIVE CORROSION: Destructive corrosion is any type of
37、 corrosion that in any way interferes with mechanical or electrical performance of the equipment or associated parts.SAE INTERNATIONAL AS6479 Page 7 of 63 DIMENSIONS: Dimensions are specified in units of width, height, and depth of the equipment in its normal operating orientation, and may be specif
38、ied as maximum or partial, or both. Maximum dimensions include all handles, latches, knobs, and other major protuberances, and are the interior dimensions of the smallest rectangular box into which the equipment (less detachable cords, cables, or accessories) may be fitted. Partial dimensions, when
39、specified, include major protrusions except removable handles, connectors, bumper feet, latches, and cover. Partial depth, when specified, is defined in a and b:a. Portable bench-top equipment. From the front surface of the front panel (less removable bezels, handles, or cover) to all rear protrusio
40、ns except controls, bumper feet, connectors, latches, or handles. b. Rack-mounted equipment. From the rack-mounting surface (normally, the rear surface of the front panel) to the rearmost permanent protrusion, including any connectors or controls, but not including cable retractors, slide-out track
41、parts not fixed to the equipment, or cable clearances. ENCLOSURE: Enclosure and case are interchangeable terms that may apply to any item of equipment.EQUIPMENT/UNIT: Equipment is an instrument, with the parts, accessories, components, or any combination thereof, required for performing a specified
42、operational function. Unless otherwise specified the equipment consists of a single instrument or a mainframe and plug-in configuration. When a mainframe and plug-in configuration is supplied, the combined weight will not exceed the maximum weight allowed by the detail specification or purchase desc
43、ription. Accessories, such as sensors, leads, bridges, loads, and adapters, will be provided with a storage case. Certain equipment may be complete within itself and may not require the addition of parts, accessories, or components to perform a specified operational function. The term units is used
44、to denote multiple items of equipment.FAILURE: Equipment failure as used herein is any departure from the required performance or operation outside of the required bounds (not correctable by normal use of the operating controls), or deviation from the criteria of 4.5 after the test is initiated.INTE
45、RMITTENT AND SHORT-TIME OPERATION: Intermittent and short-time operation are alternating periods of operation for the specified time followed by 15 minutes of non-operation.LOT: The size of a lot is that quantity of units from each individual production run that is specifically set aside for deliver
46、yto the Government (i.e., if a given production run consists of 1000 units of which ISO are set aside for delivery to the Government, the lot size would be ISO). Portions of separate production runs will not be combined into a single lot but will be treated as individual lots.NONREPAIRABLE SUBASSEMB
47、LY: A component, module, or subassembly is nonrepairable if the physical nature of the item is such that the item cannot be economically or feasibly repaired due to the excessive cost of material and labor required to affect such repair. This excessive cost is normally considered to be 65% or greate
48、r of the acquisition cost of the item. Examples of nonrepairable subassemblies are: (a) an integrated circuit, (b) a printed circuit card wherein the components and card are sealed in a hard thermosetting plastic compound, and (c) a module wherein all printed circuit cards or components are sealed i
49、n a hard thermosetting plastic compound or the module is hermetically sealed.PERFORMANCE REQUIREMENTS OF THE TEST EQUIPMENT: Wherever referenced in this specification, the performance requirements of the test equipment means the satisfactory performance of all electrical and mechanical characteristics under the conditioning, destructive, and accelerated tests specified by the detail specification or purchase des
