1、STD-AECMA PREN 3708-00LI-ENGL L97b U LO123Ll 0012219 9hb M Edition approved for publication 1996-1 1-29 AECMA STANDARD NORME AECMA AECMA NORM C2 Chairman Mr Pezzetta Comments should be sent within six months after the date of publication to AECMA Gulledelle 94 E-1 200 BRUXELLES prEN 3708-004 Edition
2、 P 2 November 1996 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 6-1200 BRUXELLES - Tel. (32) 2 775 81 10 - Fax. (32) 2 775 81 11 ICs : 49.060 Supersedes edition P 1 September 1995 Descriptors : Aircraft industry, connecting equipment, terminal strips, specifi
3、cations, dimensions, designation, marking, connecting diagrams ENGLISH VERSION Aerospace series Modular interconnection systems Terminal junction systems Part 004 : Removable feedback modules version, unsealed Product standard Srie arospatiale Luft- und Raumfahrt Systmes dinterconnexions modulaires
4、Partie 004 : Version modules amovibles Verteilersystsm in modularer Bauweise Teil 004 : Anreihbare Durchfhrungsmodule, nicht abgedichtet Barrettes de raccordement Verteilermodule retour, non tanches Norme de produit Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsi
5、bility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Pre
6、standard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre INPS) and formal agreement of the Official Services of t
7、he Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. STD-AECMA PREN 3708-0OLI-ENGL L77b LOL23LL 0032220 hb8 W Page 3 prEN 3708-004 : 1996 1 Scope This standard specifies a removable version of feedback unsealed modules
8、, designed to operate at temperatures between - 55 OC and 775 OC and at a maximum altitude of 13 700 m, constituting a terminal junction system used in modular interconnection systems. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publ
9、ications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revisi
10、on. For undated references the latest edition of the publication referred to applies. EN 2591-101 Aerospace series - Elements of electrical and optical connection - Test methods - Part 101 : Visual examination Aerospace series - Elements of electrical and optical connection - Test methods - Part 317
11、 : Flammability 1) Aerospace series - Modular interconnection systems - Terminal junction systems - Part O01 : Technical specification 1) EN 2591-317 EN 3708-001 3 Definitions For the purposes of this standard, the following definitions apply : See EN 3708-001. 1) Published as AECMA Prestandard at t
12、he date of publication of this standard Previous page is blank - STD*AECMA PREN 3708-004-ENGL L97b 3OL23L3 O032223 5T4 W Code Page 4 prEN 3708-004 : 1996 Contact Mass without contacts max. size 9 4 Required characteristics A B 4.1 Dimensions and masses See figure 1 and table 1. The modules shall be
13、coded A or B depending on their dimensions and the contacts with which they are used (see table 1). A recess shall be provided for coding labels, thickness : 0,5. Dimensions and tolerances are in millimetres. 22 6,l 20 8,1 See detail B - O +I 9 Detail B (4:Il Section A-A Contact I I Hard insulator F
14、igure 1 Table 1 STD-AECMA PREN 3708-004-ENGL 199b m 1012315 0032222 Li30 = Diagram number AO 1 Page 5 prEN 3708-004 : 1996 Feedback module, code A Definition of diagrams 10 groups, 9 of 2 contacts 1 of 3 contacts Number of contacts 4.2 Interconnection diagrams See figures 2 and 3 and tables 2 and 3.
15、 The following shall be visible on the contact access surface : - lines delimiting each group of contacts; - the contact socket code for each group. The colour of these lines and codes shall contrast with that of the contact access surface. 02 03 04 Figure 2 : Interconnection diagrams for modules co
16、de A, contact size 22 Table 2 I A02 I 1 A03 7 groups of 3 contacts 1 group of 21 contacts 1 of 6 contacts 1 of 3 contacts 1 group of 9 contacts 1 group of 12 contacts I I A06 13 groups of 7 contacts 06 Diagram Feedbc k module, code B I Page 6 I prEN 3708-004 : 1996 03 04 05 o1 o2 11 07 08 09 10 Figu
17、re 3 : Interconnection diagrams for modules code B, contact size 20 Table 3 5 aroum of 2 contacts 1 wouD of 10 contacts 2 groups, 1 of 2 contacts 1 of 8 contacts 2 groups, 1 of 4 contacts 1 of 6 contacts 3 groups, 2 of 2 contacts 1 of 6 contacts 3 groups, 2 of 4 contacts 1 of 2 contacts 10 of size 2
18、0 4 groups, 2 groups of 5 contacts 4 groups, 3 of 2 contacts 1 of 4 contacts 2 of 2 contacts 2 of 3 contacts 3 groups, 1 of 5 contacts 1 of 2 contacts 1 of 3 contacts 3 groups, 1 of 4 contacts 2 of 3 contacts STD*AECMA PREN 3708-004-ENGL L77b 101231L 0012224 203 D Page 7 prEN 3708-004 : 1996 4.3 Fla
19、mmability Test EN 2591-317 - Method A 5 Designation EXAMPLE : Identity block I EN3708-004602 Description block FEEDBACK MODULE Number of this standard Diagram number, see tables 2 and 3 I NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. 6 Mark
20、ing Unless otherwise indicated, the marking shall be shown on the modules. This marking shall include : - the manufacturers reference; - - the date of manufacture (year, week); the name or mark of the manufacturer. 7 Delivery conditions The modules are supplied without contacts. 8 Packaging The modules shall be supplied in a package to protect them from damage. 9 Storage Every five years, an inspection shall be performed to test EN 2591-101. The date of inspection shall be noted and the modules repacked in accordance with 8. 1 O Technical specification See EN 3708-001.
