1、A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM prEN 3567-801 Edition P 1 December 1992 EDIT PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92738 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : Descriptors : ENGLISH VE
2、RSION Aerospace series Couplers for use in multiplex data bus systems in accordance with STANAG 3838 Part O01 - Technical specification Srie arospatiale Coupleurs utiliss dans les systmes multiplexs de bus de donnes suivant STANAG 3838 Partie O01 - Spcification technique Luft- und Raumfahrt Koppler
3、fr die Anwendung in Multiplex-Datenbussysteme nach STAIVAG 3838 Teil O01 - Technische Lieferbedingungen This “Aerospace Series“ pre-standard has been drawn up under the responsibility of AECMA Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the need
4、s of AECMA-Members. It has been technically approved by the experts of the concerned Commission fallo wing comment by the Member countries. Subsequent to the publication of this pre-standard, the technical content shall not be changed to an extent that interchangeability is affected, physically or f
5、unctionally, without re-identification of the standard. After examination and siQnature of the AECMA Standard Checking Centre INPSI and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization)
6、for finail vote. Nota -Extra COpieS Cn be SUPPI by 6.NA.E. - TmhWii 54 - 199, n JeanJaCqa ROWU - 92138 ISSYUS-MOUUNEAUX CEDEX Edition approved for publication Comments should be sent within six months after the date of publication decision C2 Chairman A.E.C.M.A. Technopolis - 175, rue Jean-Jacques R
7、ousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Mr. LE CUNFF 1992-12-31 I I aecma 1992 CEN PREN*3567- 001 92 = 3YOY.589 00400i+L 294 = prEN 3567-001 Page 2 Contents Scope and field of application Normative references Def nit ons Description Required characteristics Dimensions and weights Requireme
8、nts and tests Quality assurance Marking 1 O Delivery conditions 11 Packaging 12 Storage CEN PRENr3567- O01 92 W 3404589 0040042 I120 W PrEN 3567-007 Page 3 1 Scope and field of application This standard defines the electrical, mechanical and environmen.tal characteristics, test programs and test fam
9、ilies of couplers used in the composition of the transmission lines of multiplex databus systems. It specifies the conditions of qualification, of acceptance, and of quality assurance. This standard is applicable to all in line couplers conforming to STANAG 3838. These couplers can be used in electr
10、ical wiring systems for databus applications suitable for operating temperatures of -65 OC to 150 OC or 200 OC and at altitudes up to 30000 m or an altitude as defined in the product standard. 2 Normative references IS0 7137 Aircraft - Environmental conditions and test procedures for airborne equipm
11、ent (Endorsement of publications EUROCAE/ED-l4B and RTCADO- 1 606 (revisions of EUROCAE/ED 14A and RTCA/DO-I 60A) EN 2591 Aerospace series - Elements of electrical and optical connection - Test methods - General EN 3042 Aerospace series - Ouality assurance - EN aerospace products - Qualification pro
12、cedure EN 3375-001 Aerospace series - Cables, electrical, for signal data transmissions - Part O01 - Technical specification 2, EN 3375-003 Aerospace series - Cables, electrical, for signal data transmissions - Part 003 - Cables, bifilar, single braid - Product standard 2, EN 3567-003 Aerospace seri
13、es - Couplers for use in multiplex data bus systems in accordance with stanag 3838 - Part 003 - Single in-line couplers - Product standard 3) Anti-icing and deicing-defrosting fluids 4, i MIL-A-82430 MIL-B-4394C Fire extinguisher fluids 4, MIL-C-25769 Cleaning compound, aircraft surface, alkaline wa
14、ter base 4, MIL-H-5606E Hydraulic fluid, petroleum base : aircraft 4, MIL-HDBK-2 1 7 Reliability prediction of electronic equipment 4, MIL-L-7808H Lubricating oil, aircraft turbine engine, synthetic base 4) MIL-L-23699C Lubricating oil, aircraft, turbine engine, synthetic base 4 MIL-T-5624L Turbine,
15、 fuel, aviation, grades JP4 and JP5 4, MIL-T-21038 Transformers, pulse, low power, general specification for 4, STANAG 3838 Digital time division cornmand/response multiplex data bus 5) 11 Relevant parts are quoted in table 1. 2) In preparation at the date of publication of this standard. 3) Publish
16、ed as AECMA pre-standard at the date of publication of this standard. 4) This specification is published by : Department of Defense (DODI, the Pentagon, Washington D.C. 20301 USA 5) This standard is published by : NATO Military Agency for Standardization (MIAS) ; 6-1 1 1 O Brussels CEN PREN*:3567- 0
17、01 92 3404587 OOLl0043 Ob7 M prEN 3567-001 Page 4 3 Definitions See EN 2591 4 Description Couplers shall consist of a coupling transformer and two fault isolation resistors contained within a screened, environmentally sealed and corrosion resistant enclosure. The enclosure may contain one or two cou
18、plers. Couplers shall be connected to the databus cable during manufacture. 5 Required characteristics Since the coupler is magnetic, care should be taken in selecting its location in relation to other equipment. 5.1 Specification of electrical components 5.1.1 Transformers shall meet the electrical
19、 performance requirements of Mlt-T-21038 type to be defined in the product standard. The turns ratio shall be 1 :1,41 +3 Oh with the higher turns on the isolation resistor side. 5.1.2 Resistors shall be non-inductive and of an established reliability type to meet the requirements of 7.3. 5.1.3 Cable
20、s shall meet the performance requirements of EN 3375-001. 6 Dimensions and weights The general dimensions and weights are given standards. The parts do not have to comply wii limiting dimensions shall be maintained. in i1 EN 3567-003 and subsequent product le diagrammatic representations but the 7 R
21、equirements and tests 7.1 The tests in EN 2591 which are applicable in the context of this Standard, as well as the details necessary for implementing them and inspecting the coupler characteristics are given in table 1. 7.2 Documented evidence is required to demonstrate that components as specified
22、 in 5.1 are qualified to the standards or have been tested to show compliance. CEN PREN*3567- 001 92 = 3404589 0040044 TT3 = PEN 3567-001 Page 5 Table 1 EN 2591 test Al A2 E5 66 67 B8 B13 B1 4 c1 c2 c3 c5 Name of the test Visual examination Examination of dimensions and mass Housing (shell) electric
23、al continuity Measurement of insulation resistance Voltage proof test Temperature rise due to rated current Shielding effectiveness from 100 MHz to 1 GHz Lightning proofness Endurance test Climatic sequence Cold/low air pressure and damp heat Rapid change of temperature DE! t a ils With naked eye un
24、der suitable conditions of viewing and lighting According to product standard Resistance of screening including cable braid. Value in product standard Test applicable to bus and stubs Test voltage shall be applied in turn : - between braid and salt water (5 YO) in which specimen is immersed - betwee
25、n braid and two conductors connected together Insulation R = 100 NIL2 min. Test applicable to bus and stubs Test applied in turn : - between braid and salt water (5 %) in which specimen is immersed - between braid and two conductors connected together Test voltage : 500 V i.m.s. Air pressure : ambie
26、nt Leakage current : 2 mA max. Manufacturer shall make available information on temperature rise (AT) upon request. See EN 2591-G8 To be defined. See EN 2591-GC1 EN 2591-C9 : dry heat temperature = 150 OC or 200 OC EN 2591-C11 : low pressure : 1,l kPa (11 mbarl Cable ends sealed for EN 2591-C21 EN 2
27、591-C10 : minimal temperature = 65 OC five cycles minimal temperature : -65 OC Cable ends sealed for test Requirements : transmission test EN 2591 - G6 during five cycles with amplitude 1 V peak to peak. TA : - 65 OC Tg : 150 OC or 200 OC T1 : 30 min During EN 2591 -C5 : transmission test EN 2591-G6
28、 - amplitude 27 V peak to peak (continued) CEN PREN*:3567- 001 92 3404589 0040045 93T prEN 3567-001 Page 6 EN 2591 test C6 Table 1 (continued) Name of the test Details Mould growth Already qualified materials may be used c7 without retesting. Should this not be the case apply method A. Period of exp
29、osure : 28 davs No preliminary cleaning Duration : 500 h Salt mist I C8 1 Sand and dust cable ends sealed for test One cycle c9 c1 o c11 C14 C15 Velocity : 3,5 A 0,5) m/s Dry heat Cold Low air pressure Immersion at low air pressure Fluid resistance Pressure : 1,l kPa (30000 m) Fluids and temperature
30、s : see below (continued) Fluids Types Reference documents Fuel MIL-T-5624L JP5 Mineral fluid hydraulic MIL-H-5606E M IL-L-23 699 C Synthetic lubricant MI L-L-7 808 H MI L-C-2 57 6 9 Isopropanol Cleaning compound Methanol Ethanol De-icing fluids MIL-A-8243 D -. -ire extinguisher fluids M IL-B-4394C
31、Immersion Oven drying temperature temperature OC OC 25 65 85 65 120 65 120 65 65 65 25 65 25 65 25 65 65 65 20 65 CEN PRENr35b7- 001 92 3404587 004004b 3b = PrEN 3567-001 Page 7 iN 2591 test C17 c2 1 D2 Table 1 - (continued) Name of the test Flammability Damp heat, cyclic test Shock ri wHZ) r3 (g2/H
32、z) F1 (Hz) F2 (Hzl F4 (Hz) P1 g2/Hz) P2 (g2/Hz) P3 (g2/Hz) P4 (g2/Hz) r2 (g2/Hz) F3 (Hz) I 03 I Sinusoidal and random vibrations 0,072 1,335 4,165 28,3 56,6 113,2 1349 2,977 3,068 3,621 4,991 Details Jlethod A Waveform : method A .eve1 : 300 -hree shocks in each direction, total : I8 shocks luring t
33、ransmission test EN 2591-G6 : implitude 1 V peak to peak Jlethods B and C Jlethod B (random) luration : 8 h in three axis :igure 3 level J 4mbient temperature luring transmission test EN 2591 -G6 : implitude 1 V peak to peak Jlethod C (gunfire) : ested in three axis luration : 26,5 minutes/axis rest
34、 spectra and test levels according to : Ambient temperature rest EN 2591-G6 : amplitude 1 V peak to oeak Transmission during test (continued) CEN PRENr35b7- 001 92 D 3404589 0040047 702 PrEN 3567-001 Page 8 EN 2591 test E4 G1 G2 G3 G4 G5 G6 G7 G8 G9 GCl Table 1 - (concluded) Name of the test - Resid
35、ual magnetism Measurement of open circuit impedance Measurement of signal distorsion Common mode rejection Measurement of turns ratio and polarity Measurement of stub input impedance Transmission test Measurement of characteristic impedance of a bus or a stub terminator Measurement of surface transf
36、er impedance Tensile strength Endurance test Details Not applicable. But upon request : magnetic effect test from IS0 7137 Impedance shall be greater than 3 kn for a single coupler or 1,5 kn for a double coupler. Frequency from : 75 kHz to 1 MHz Signal amplitude : 1 V r.m.s. Temperatures : -65 OC an
37、d 150 OC or 200 oc D 45 dB L1 = L2 = 0,5 m S 2 V peak to peak , ,. VI -_ - 1,41 * 3 % v2 2 = (77 f 7) n STANAG 3838 validity criteria. Duty cycle between 75 % and 80 %. Number of words : 44 x lo6 Amplitude : transmitted 27 V peak to peak received 1 V peak to peak Z0+-2% Values in product standard T
38、min. : -65 OC T rnax. : 150 OC or 200 OC F max. : 100 N Method A with current Test temperatures : 150 OC x 0,85 = 127,5 OC or 200 OC x 0,85 = 170 OC Duration : 1000 h Signal : square wave Frequency : 250 kHt Amplitude : 27 V peak to peak Rise/falltime : 100 ns to 110 ns lo % to 90 %) Measurement and
39、 recording of wave forms Cable lezgth : as per product standard 4 Specimen Single coupler Double coupler CEN PRENx3Sb7- 001 92 3404589 OOq0048 b49 m prEN 3567-001 Page 9 Single braid Double braid High immunity 24 24 24 24 24 24 7.3 Reliability The qualifying reliability performance shall be in accor
40、dance with MIL-HDBK-217 and defined in the product standard. The manufacturer shall carry out and record the calculation. 8 Quality assurance 8.1 See EN 3042. 8.2 Conditions of qualification The qualification of a product is obtained : - once the product specimens defined in 8.2.1, have successfully
41、 completed the tests relative to groups O to 8 and the reliability requirements specified in 7.3, - by extension of the qualification to products similar to the one already qualified. This extension may be obtained after successfull completion of a reduced number of complementary tests. The extensio
42、n shall be possible only when materials, manufacturing process and production tooling are identical for the product already qualified and the product to be qualified by extension, - when a test requires the attachment of a specimen to a harness for measurements ; the composing elements of the harnes
43、s, SuGh as bus terminator, stub terminator and cable splice- if tested together with the specimen, can be listed in the test report, which then shall be valid for their own qualification. 8.2.1 Sampling and specimen definition See table 2. Table 2 I Number of specimens 1 NOTE : when one cable constr
44、uction has been qualified, the two other shall be qualified by extension as per 8.2. The tests of the following groups shall be done : groups O, 1, 2, 6. The number of specimens required is then reduced to six per new construction. 8.2.2 Preparation of specimens For ali groups requiring the transmis
45、sion test the specimen shall be inserted in a cable system in accordance with the test configuration shown in EN 2591-G6. For the surface transfer impedance test the specimen shall be prepared in accordance with the test configuration shown in EN 2591 -G8. After the last test requiring a transmissio
46、n test is completed, the coupler shall be removed from the cable system in order to conduct the specified electrical measurements. For test purpose it is acceptable to splice the cable. _ CEN PRENx35b7- 001 92 3404589 0040049 585 prEN 3567-001 Page IO 8.2.3 Program of qualification approval tests Qu
47、alification tests shall be as specified in table 3. Table 3 Tests Jrop O disual examination fxamination of dimensions and mass nsuiation resistance doltage proof Shell electrical continuity 3pen circuit impedance measurement Naveform integrity Zommon mode rejection rums ratio Stub input impedance rr
48、ansrnission test Group 1 qapid change of temperature Vold/low air pressure and damp heat Vibrations, random and gunfire Shock Insulation resistance Voltage proof Shell electrical continuity Turns ratio Stub input impedance Visual examination Group 2 Surface transfer impedance Group 3 Fluid resistanc
49、e Insulation resistance Transmission test Group 4 Immersion at low air pressure Salt mist Endurance test Insulation resistance Voltage proof Shell electrical continuity Stub input impedance Visual examination EN 2591 Number of specimens test no. (same construction) All Al A2 66 87 B5 GI G2 G3 G4 G5 G6 2 c5 c3 D3 D2 B6 87 B5 G4 G5 Al 2 G8 C15 86 G6 C14 c7 GC1 B6 87 85 G5 Al 1 per fluid 2 (continued) CEN PRENx3567- 001 qz 340Y589 0040050 2T7 prEN 3567-001 Page 11 Groupe 5 Climatic sequence Sand and dust Insulation resistance Voltage pr
