1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4652-312 Edition P 1 April 2014 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONRue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: Descriptors: ENGLISH VERSION A
2、erospace series Connectors, coaxial, radio frequency Part 312: Type 3, N interface Clamp nut assembly version Square flange receptacle Product standard Srie arospatiale Connecteurs coaxiaux pour radio frquences Partie 312 : Type 3, interface N Version presse toupe Embase collerette carre Norme de pr
3、oduit Luft- und Raumfahrt Hochfrequenz Steckverbinder, koaxial Teil 312: Typ 3 N Klemmverbindung Fester Steckverbinder mit quadratischem Montageflansch Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Associa
4、tion of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an
5、extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for form
6、al vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1stApril 2014 Com
7、ments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2014 by ASD-STAN prEN 4652-312:2014 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definitions . 3 4 Required characteristics . 3 5 Test methods . 7 6 Qualifica
8、tion . 9 7 Quality assurance 9 8 Designation 10 9 Marking . 10 10 Packaging . 10 11 Storage 10 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs G
9、eneral Process Manual, this standard has received approval for Publication. prEN 4652-312:2014 (E) 3 1 Scope This standard specifies the characteristics of screwed on coupling (N interface) coaxial square flange receptacle 50 ohms. The cable to connector assembly is a clamp technology. 2 Normative r
10、eferences The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applie
11、s. EN 2591 1), Aerospace series Elements of electrical and optical connection Test methods EN 2812, Aerospace series Stripping of electric cables EN 4652-001, Aerospace series Connectors, coaxial, radio frequency Part 001: Technical specification 2)EN 4652-310, Aerospace series Connectors, coaxial,
12、radio frequency Part 310: Type 3, N interface Clamp nut assembly version Straight plug Product standard2)EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts TR 6058, Aerospace series Cable code identification list 3)3 Terms and definitions For th
13、e purposes of this document, the terms and definitions given in EN 4652-001 apply. 4 Required characteristics The connection technology shall comply to required tests described in Clause 5. Interface shall comply to EN 4652-001. A self-locking device on plugs shall be proposed if holes for lockwire
14、do not exist. Water ingress resistance is required in mated conditions for all cable groups. Water ingress resistance is required in unmated condition for cable group A. 1) All parts quoted in this standard. 2) Published as ASD-STAN Prestandard at the date of publication of this standard. http:/www.
15、asd-stan.org/ 3) Published as ASD-STAN Technical Report at the date of publication of this standard. http:/www.asd-stan.org/ prEN 4652-312:2014 (E) 4 4.1 Configuration, dimension and mass Mass without heat shrink tubing. See Figure 1 and Table 1. Dimensions in millimetres Key 1 Panel thickness max.
16、5 2 Marking 3 Flat 10 4 HEX. F Figure 1 N square flange receptacle Marking: see Clause 9. Table 1 N square flange receptacle dimensions and mass Cable group A C D E HEX. F Mass (cable jacket) (cable conductor) g max. max. max. max. A 47,2 7,8 2,3 15 12 50,8 B 41,3 5,55 1,4 13 8 41,5 prEN 4652-312:20
17、14 (E) 5 4.2 Materials and finish Centre contact : Copper alloy gold plated over nickel undercoat Insulators : PTFE Sealings : Silicone rubber or silicone fluoride Body : Copper alloy, nickel plated Heat shrink tube . : Polyolefin Rear screw and other parts materials shall have mechanical and electr
18、ical characteristics consistent with the requirements of this product standard. 4.3 Temperature Operating temperature shall be between 65 C and 165 C. 4.4 Electrical characteristics Impedance : 50 Maximum operating frequency . : 6 GHz VSWR . : 1,15 up to 6 GHz Insertion loss : 0,04f dB max., f in GH
19、z Contact resistance (initial centre contact) : 1,5 m max. Insulation resistance . : 5 000 M min. Withstand voltage . : 1 500 Veff (at sea level) 4.5 General characteristics Tightening torque of coupling nut . : Not applicable Force to engage or disengage . : 0,68 Nm max. Service life : 500 cycles R
20、etention of centre contact : 27 N min Retention of cable . : see Table 2. Table 2 Retention of cable Cable group Retention of cable N min. A 180 B 180prEN 4652-312:2014 (E) 6 4.6 Admissible cables, tools and stripping lengths See Table 3 to Table 5. Table 3 Stripping lengths Cable group Cable code (
21、see TR 6058) Stripping Lengths mm A KW B KX Table 4 Stripping lengths cable group A A B min. mm max. mm min. mm max. mm 3,6 4,4 8,6 9,4 Table 5 Stripping lengths cable group B A B min. mm max. mm min. mm max. mm 3,6 4,4 7,6 8,4 For stripping, see EN 2812. prEN 4652-312:2014 (E) 7 5 Test methods See
22、Table 6. Table 6 Test methods (1 of 3) EN 2591- Designation of the test Details 101 Visual examination Applicable 102 Examination of dimensions and mass See 4.1. 201 Contact resistance - low level Applicable on centre contact 202 Contact resistance at rated current 1,5 m max. initial centre contact,
23、 and 2,0 m max. after test For nickel plated connectors: 0,4 m max. initial external contact, and 1,2 m max. after test 204 Discontinuity of contacts in the microsecond range Duration of micro discontinuity: 1 s Method B Test time: throughout duration of tests EN 2591-402 and EN 2591-403. 206 Measur
24、ement of insulation resistance 5 000 M min. 207 Voltage proof test Method A Pressure Mated aUnmated aSea level 1 500 1 500 12,1 kPa 800 550 4,7 kPa 375 350 2,7 kPa 250 200 aValues in Volts RMS. 212 Surface transfer impedance Applicable (up to 100 MHz) 3 m 1 MHz 1 m 10 MHz 3 m 30 MHz 5 m 100 MHz 214
25、Lightning strike, current and voltage pulse 10 kA wave form 5 A, 10 A RMS 221 Voltage Standing Wave Ratio (VSWR) Method B VSWR 1,15 up to 6 GHz 222 Insertion Loss (I.L.) 0,04f dB max., f in GHz Measurement shall be performed with connector mated with EN 4652-310 plug from same technology and cable g
26、roup. prEN 4652-312:2014 (E) 8 Table 6 Test methods (2 of 3) EN 2591- Designation of the test Details 223 Measurement of characteristic impedance of a coaxial connector or contact 50 5 at 200 MHz Input impedance 224 RF leakage Measured from 2 GHz to 3 GHz. 50 dB for connectors on cable group A 60 dB
27、 for connectors on cable group B 225 RF high potential withstanding voltage 1 000 V at 5 MHz 226 Corona level Corona extinction voltage 315 V rms at 4,4 kPa (70000 feet altitude) 303 Cold/low pressure and damp heat Five (5) cycles Minimum temperature 60 C 305 Rapid change of temperature Mated connec
28、tors TA 05165 C; TB 5065 C. 307 Salt mist The connectors shall be suspended in the test chamber with non-metallic cords, so that no accumulation of condensed saline solution can occur. The connectors shall be: subjected to 50 cycles of mating and unmating at a rate 5 cycles/min.; exposed to the salt
29、 mist: mated for 240 h Not exposed to the salt mist: unmated for 48 h. 308 Sand and dust The mated connectors shall be arranged so that their longitudinal axis is parallel to the wind direction, with the rear of the plug facing the wind. Wind velocity in the duct: (3,5 0,5) m/s Number of cycles: one
30、 (1) 311 Low air pressure Refer to test EN 2591-207. 314 Immersion at low air pressure Specimen without heat shrinkable tube. In unmated condition (applicable only for connectors on cable group A): After the three (3) cycles, remove the specimen from salt water, clean the interface with soft paper.
31、In mated condition (applicable for all connectors): standard procedure. 315 Fluid resistance See EN 4652-001. 317 Flammability Method A prEN 4652-312:2014 (E) 9 Table 6 Test methods (3 of 3) EN 2591- Designation of the test Details 402 Shock Method A, half sine Severity 30 g, duration 11 ms Number o
32、f shocks: one (1) in each way for each of the three (3) axis (six (6) shocks in all) 403 Sinusoidal and random vibration Method A: sinusoidal vibration with the following individual modalities: Level 2 50 Hz to 70 Hz 1,5 mm double amplitude 70 Hz to 2 000 Hz 20 g Three (3) axis or two (2) axis (stra
33、ight connectors) Duration 4 h per axis at ambient temperature 404 Transverse load Not applicable 406 Mechanical endurance 500 cycles 408 Mating and unmating forces 0,68 Nm max. 409 Contact retention in insert 27 N min., applicable on cabled specimen 417 Tensile strength (crimped connection) See Tabl
34、e 2. 418 Gauge insertion/extraction forces (female contacts) Applicable, see EN 4652-001. 422 Locking wire hole strength Not applicable 507 Plating porosity Applicable 508 Measurement of thickness of coating on contacts Applicable 509 Adhesion of coating on contacts Applicable 513 Magnetic permeabil
35、ity 2 6 Qualification Qualification test programme: see EN 4652-001. 7 Quality assurance See EN 9133. prEN 4652-312:2014 (E) 10 8 Designation EXAMPLE Description block CONNECTOR, COAXIAL Identity block EN4652-312A50 Number of the basic standard Connector interface type code (see EN 4652-001) 3 N Tec
36、hnology of assembly code (see EN 4652-001) 1 clamp Connector model code (see EN 4652-001) 2 square flange receptacle Cable group code (see Table 3) Impedance: 50 50 NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 9 Marking See EN 4652-001. 10 Packaging See EN 4652-001. 11 Storage See EN 4652-001.
