1、CONNECTORS, RACK AND PANEL,RECTANGULAR REARRELEASE CRIMP CONTACTSARINC SPECIFICATION 404B-1PUBLISHED: December 6, 2002AN DOCUMENTPrepared byAIRLINES ELECTRONIC ENGINEERING COMMITTEEPublished byAERONAUTICAL RADIO, INC.2551 RIVA ROAD, ANNAPOLIS, MARYLAND 21401This document is based on material submitt
2、ed by variousparticipants during the drafting process. Neither AEEC nor ARINChas made any determination whether these materials could besubject to valid claims of patent, copyright or other proprietaryrights by third parties, and no representation or warranty, express orimplied, is made in this rega
3、rd. Any use of or reliance on thisdocument shall constitute an acceptance thereof “as is” and besubject to this disclaimer.Copyright2002 byAERONAUTICAL RADIO, INC.2551 Riva RoadAnnapolis, Maryland 24101-7465 USAARINC SPECIFICATION 404BCONNECTORS, RACK AND PANEL,RECTANGULAR, REAR RELEASE CRIMP CONTAC
4、TSPublished: December 6, 2002Prepared by the Airlines Electronic Engineering CommitteeCharacteristic 404B Adopted by the Airlines Electronic Engineering Committee: September 25, 1997Characteristic 404B Adopted by the Industry: November 10, 1997Summary of Document SupplementsSupplement Adoption Date
5、PublishedCharacteristic 404B-1 October 17, 2002 December 6, 2002A description of the changes introduced by each supplement is included on Goldenrod paper at the end of this document.iiFOREWORDAeronautical Radio, Inc., the AEEC, and ARINC StandardsAeronautical Radio, Inc. (ARINC) was incorporated in
6、1929 by four fledgling airlines in the UnitedStates as a privately-owned company dedicated to serving the communications needs of the air transportindustry. Today, the major U.S. airlines remain the Companys principal shareholders. Othershareholders include a number of non-U.S. airlines and other ai
7、rcraft operators.ARINC sponsors aviation industry committees and participates in related industry activities that benefitaviation at large by providing technical leadership and guidance and frequency management. Theseactivities directly support airline goals: promote safety, efficiency, regularity,
8、and cost-effectiveness inaircraft operations.The Airlines Electronic Engineering Committee (AEEC) is an international body of airline technicalprofessionals that leads the development of technical standards for airborne electronic equipment-including avionics and in-flight entertainment equipment-us
9、ed in commercial, military, and businessaviation. The AEEC establishes consensus-based, voluntary form, fit, function, and interface standardsthat are published by ARINC and are known as ARINC Standards. The use of ARINC Standards resultsin substantial benefits to airlines by allowing avionics inter
10、changeability and commonality and reducingavionics cost by promoting competition.There are three classes of ARINC Standards:a) ARINC CharacteristicsDefine the form, fit, function, and interfaces of avionics and otherairline electronic equipment. ARINC Characteristics indicate to prospective manufact
11、urers ofairline electronic equipment the considered and coordinated opinion of the airline technicalcommunity concerning the requisites of new equipment including standardized physical andelectrical characteristics to foster interchangeability and competition.b) ARINC Specifications-Are principally
12、used to define either the physical packaging ormounting of avionics equipment, data communication standards, or a high-level computerlanguage.c) ARINC Reports -Provide guidelines or general information found by the airlines to begood practices, often related to avionics maintenance and support.The r
13、elease of an ARINC Standard does not obligate any airline or ARINC to purchase equipment sodescribed, nor does it establish or indicate recognition or the existence of an operational requirement forsuch equipment, nor does it constitute endorsement of any manufacturers product designed or built tome
14、et the ARINC Standard.In order to facilitate the continuous product improvement of this ARINC Standard, two items are includedin the back of this volume:a) An Errata Report solicits any corrections to the text or diagrams in this ARINC Standard.b) An ARINC IA Project Initiation/Modification (APIM) f
15、orm solicits any recommendations foraddition of substantive material to this volume which would be the subject of a newSupplement.ARINC SPECIFICATION ARINC 404BTABLE OF CONTENTSITEM SUBJECT PAGEiii1.0 INTRODUCTION 11.1 Purpose 11.2 Classification 11.2.1 Temperature Rating 11.3 Part Number 11.4 Conta
16、cts 11.5 Contact Insert Arrangements 11.6 Polarization Position 11.7 Wire Range Accommodations 11.8 Future Work 12.0 REFERENCES 22.1 Applicable Documents 23.0 TECHNICAL REQUIREMENTS 33.1 Specification Sheets 33.2 Material 33.2.1 Dissimilar Metals 33.2.2 Non-Magnetic Materials 33.2.3 Shells 33.2.4 Fi
17、nish 33.3 Inserts 33.3.1 Rigid Insert Material 33.3.2 Resilient Insert Material 33.4 Design and Construction 33.4.1 Contacts 33.4.1.1 Coaxial Contacts 33.4.1.2 Grounding Springs 33.4.2 Grommet Filler Plugs 33.4.3 Contact Installing and Removal Tools 33.4.4 Contact Crimping Tools 33.4.5 Inserts 33.4.
18、6 Contact Retention 33.4.7 Insert Arrangement 43.4.8 Contact Alignment and Stability 43.4.9 Contact Cavity Identification 43.4.10 Insert Retention 43.4.11 Polarization 43.4.12 Intermateability 43.5 Performance 43.5.1 Magnetic Permeability 43.5.2 Maintenance Aging 43.5.2.1 Contact Installing and Remo
19、val Forces 43.5.3 Contact Retention 43.5.4 Insulation Resistance 43.5.5 Thermal Shock 43.5.6 Insulation Resistance at Elevated Temperature 53.5.7 Dielectric Withstanding Voltage 53.5.8 Mating and Unmating Forces ( Complete Connector Assembly) 53.5.9 Vibration 53.5.10 Shock (Specified Pulse) 53.5.11
20、Durability 53.5.12 Salt Spray 53.5.13 Temperature Life 53.5.14 Fluid Immersion 53.5.15 Insert Retention 63.5.16 Shell Spring Finger Forces 63.5.16.1 Shell Spring Finger Grounding Integrity 63.5.17 Shell to Shell Conductivity 63.5.18 EMI Shielding 63.5.19 Contact Stability 63.6 Marking 63.7 Workmansh
21、ip 6ARINC SPECIFICATION ARINC 404BTABLE OF CONTENTSITEM SUBJECT PAGEiv4.0 PACKAGING 74.1 Packaging Requirements 74.2 Dust Cover 7APPENDICESA Contact Insert Arrangements 61B Polarizing Post, Keyway and Polarization Positions 71C Contacts 77TABLE OF FIGURESFigure1 Flange to Flange Spacing when Mated S
22、hells are Bottomed 4Figure 2 Connector Interface Control Dimensions 8Figure 3 Single Shell Plug Connector Intermateability Control Dimensions 9Figure 4 Single Shell Receptacle Connector Intermateability Control Dimensions 11Figure 5 Dual Shell Plug Connector Intermateability Control Dimensions 13Fig
23、ure 6 Dual Shell Receptacle Connector Intermateability Control Dimensions 15Figure 7 Triple Shell Plug Connector Intermateability Control Dimensions 17Figure 8 Triple Shell Receptacle Connector Intermateability Control Dimensions 19Figure 9 Quadruple Shell Plug Connector Intermateability Control Dim
24、ensions 21Figure 10 Quadruple Shell Receptacle Connector Intermateability Control Dimensions 23Figure 11 Connectors, Electrical, Rectangular, Plug, Crimp Contacts, Single Insert 25Figure 12 Connectors, Electrical, Rectangular, Receptacle, Crimp Contacts, Single Insert 27Figure 13 Connectors, Electri
25、cal, Rectangular, Plug, Crimp Contacts, Dual Insert 28Figure 14 Connectors, Electrical, Rectangular, Receptacle, Crimp Contacts, Dual Insert 31Figure 15 Connectors, Electrical, Rectangular, Plug, Crimp Contacts, Triple Insert 34Figure 16 Connectors, Electrical, Rectangular, Receptacle, Crimp Contact
26、s, Triple Insert 37Figure 17 Connectors, Electrical, Rectangular, Plug, Crimp Contacts, Quadruple Insert 40Figure 18 Connectors, Electrical, Rectangular, Receptacle, Crimp Contacts, Quadruple Insert 43Figure 19 Connectors, Electrical, Rectangular, Plug, Crimp Contacts, Single Insertwith EMI Groundin
27、g Spring 46Figure 20 Connectors, Electrical, Rectangular, Plug, Crimp Contacts, Dual Insertwith EMI Grounding Spring 49Figure 21 Connectors, Electrical, Rectangular, Plug, Crimp Contacts, Triple Insertwith EMI Grounding Spring 52Figure 22 Connectors, Electrical, Rectangular, Plug, Crimp Contacts, Qu
28、adruple Insertwith EMI Grounding Spring 55ARINC SPECIFICATION 404B - Page 11.0 INTRODUCTION1.1 PurposeThis document defines standardized connectors intendedfor use on rack-mountable avionics equipment. Itincorporates changes to MIL-C-81659 that have takenplace since ARINC Specification 404A was publ
29、ished in1974. These changes have not affected the form, fit orfunction of the connectors. In addition, new avionicsinstallations on commercial aircraft are requiring the useof connectors that provide EMI protection. These EMIrequirements have been added to this Specification.ARINC Specification 404B
30、 contains provisions for theconnectors along with Appendices A and B that define theconnector insert arrangements and the connector keyinglayouts, respectively. In addition, there is a series of 12connector drawings defining the dimensionalconfiguration of the four basic shell sizes for plugs,recept
31、acles and plugs with EMI capability. ThisSpecification improves definition of the connector portionof ARINC Specification 404A.1.2 ClassificationConnectors covered by this standard should have wiresupport grommets.1.2.1 Temperature RatingThe connector should be operable between thetemperature ranges
32、 of -55C to +125C.1.3 Part NumberThe connector part number should consist of a series ofalphanumeric characters.1.4 ContentsThe contacts should be rear release from the connector,unless otherwise specified (see Section 3.1).1.5 Contact Insert ArrangementsContact insert arrangements should be as spec
33、ified inAppendix A and should be ordered with the connectorshells (see Section 3.1).1.6 Polarization PositionsThe polarization position of the connector should be inaccordance with Appendix B. All connectors should besupplied with the polarizing hardware shipped in the 01position, unless otherwise s
34、pecified.Polarizing hardware should be a passivated corrosionresistant steel and should meet the requirements specifiedherein.1.7 Wire Range AccommodationsWire range accommodations of the contacts should be asshown in Table 1.Table 1 - Wire Range AccommodationsWIREBARRELSIZESWIRESIZEINSULATIONDIAMET
35、ER RANGE(INCH)22 26, 24,22 .030 to .05420 24, 22, 20 .040 to .07116 20, 18, 16 .068 to .10312 14, 12 .097 to .1351.8 Future WorkIn a effort to introduce true standardization of theseconnectors and eliminate unnecessary parts, ARINC isworking with a TBD standards organization in theformation of a joi
36、nt standard for these connectors. Thejoint standard will establish an industry part numberingsystem, along with a Quality Assurance program, andthird party auditing. This will provide a list of approvedconnector suppliers that will permit users to purchaseARINC connectors from several approved sourc
37、es usingone industry part number.ARINC SPECIFICATION 404B - Page 22.0 REFERENCES2.1 Applicable DocumentsThe following publications form a part of this documentto the extent specified herein. The latest issue of allpublications should apply. In the event of conflictbetween the text of this document a
38、nd references citedherein, the text of this document takes precedence.Nothing in this document, however, supersedesapplicable laws and regulations unless a specificexception has been obtained.ASTM B 85, “Standard Specification for AluminumDie Castings”ASTM B 209, “Standard Specification for Aluminum
39、and Aluminum Alloy Sheet and Plate”ASTM B 211, “Standard Specification for Aluminumand Aluminum Alloy Bar, Rod and Wire”ASTM D 3399, “General Purpose Synthetic DetergentLiquid”SAE AS 478, “Identification Marking Messages”MIL-C-5541 “Chemical Conversion Coatings onAluminum and Aluminum Alloys”MIL-I-1
40、7214 “Indicator, Permeability, Low-Mu (Go-No-Go)”MIL-C-26074 “Coatings, Electroless Nickel,Requirements”MIL-C-39029/11 “Contacts, Electrical, Connector, Pin,Crimp Removable”MIL-C-39029/12, “Contacts, Electrical, Connector,Socket, Crimp Removable”MIL-HDBK-454, “Standard General Guideline forElectroni
41、c Equipment”MS27488, “Plug, Sealing, Electric Connector”TT-I-735, “Isopropyl Alcohol”ASTM Publications: Available from ASTM, 100 BarrHarbor, West Conshohocken, PA 19428-2959U.S. Government Publications: Available fromDODSSP, Subscription Services Desk, Building 4D,700 Robins Avenue, Philadelphia, PA
42、 19111-5094.3.0 TECHNICAL REQUIREMENTS3.1 Specification SheetsThe individual item requirements should be as specifiedherein and in accordance with the applicableSpecification Sheets. In the event of a conflict betweenthe requirements of this Specification and theSpecification Sheets, the latter will
43、 govern.3.2 MaterialsMaterials should be used which will enable theconnectors to meet the performance requirements of thisstandard. Acceptance or approval of any constituentmaterial should not be construed as an assurance of theacceptance of the finished product.3.2.1 Dissimilar MetalsWhen dissimila
44、r metals are employed in intimatecontract with each other, suitable protection againstelectrolytic corrosion should be provided as specified inrequirement 16 of MIL-HDBK-454 or equivalent.3.2.2 Non-Magnetic MaterialsAll parts should be made from materials which pass themagnetic permeability test of
45、2Mu when tested inaccordance with ASTM A342 or equivalent.3.2.3 ShellsShells should be made from a high grade aluminumalloy. Die casting materials should conform tocomposition number 13, A13, 380, A380 or SC114A ofASTM B 85, or aluminum forging alloy conforming toASTM B 211 or ASTM B 209 or equivale
46、nt.3.2.4 FinishThe connector finish on all exposed metal parts, otherthan electrical contacts, insert retention plates, andcorrosion resistant steel parts, should be in accordancewith SAE AMS 2404 for conductive surfaces or MIL-C-5541 class 1A for non-conductive surfaces (seeSection 3.1).3.3 Inserts
47、3.3.1 Rigid Insert MaterialRigid insert material should meet the electrical andmechanical requirements specified.3.3.2 Resilient Insert MaterialResilient insert material should be a high gradeelastomer having a shore “A” hardness between 35 and65 and meet the electrical and mechanical requirementssp
48、ecified.3.4 Design and ConstructionConnectors should be of the design and constructionspecified for the individual shell configurations (seeSection 3.1).3.4.1 ContactsUnless otherwise specified, contacts should conform toMIL-C-39029/11 for pins and MIL-C-39029/12 forsockets. A quantity of contacts c
49、onsisting of the normalcomplement, plus one spare contact of each size forconnector arrangements having 26 contacts or less andtwo spares for arrangements over 26 contacts of eachsize should be included in the unit package.3.4.1.1 Coaxial ContactsCoaxial contacts should conform to TBD coaxialcontact and ordered separately.3.4.1.2 Grounding SpringsGrounding springs should be of a material that iscapable of meeting the requirements specified hereinand plated with a material that is compatible with themating connector (see Section 3.1).3.4.2 Grommet Filler PlugsGrommet filler plugs
