1、CEN PREN*259L- FC5 93 3404589 00Ybbb4 720 AECMA STANDARD NORME AECMA AECMA NORM prEN 2591 -FC5 Edition P 1 June 1993 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AEROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : De
2、scriptors ENGLISH VERSION Aerospace series Elements of electrical and optical connection Test methods Part FC5 - Optical elements Rapid change of temperature Srie arospatiale Luft- und Raumfahrt Mthodes dessais Prfverfahren Organes de connexion lectrique et optique Partie FC5 - Organes optiques Vari
3、ations rapides de temprature Elektrische und optische Verbindungselemente Teil FC5 - Optische Elemente Schnelle Temperaturwechsel This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published o
4、n 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 prestandard, the technical content shall not be changed to an extent that interchangeabi
5、lity is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (Europea
6、n Committee for Standardization) for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX I Edition approved for publication Comments should be sent within six months after the date of Dublication to 1993-06
7、-30 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE C2 Chairman Mr. Le Cunff I I aecrna 1993 CEN PRENx259L- FC5 93 3404589 004bbb5 bb7 prEN 2591-FC5 Page 3 1 Scope This standard specifies a method of checking the ability of optical connection elements (in
8、cluding permanent connections) and fibre optic couplers to withstand rapid changes of temperature such as might occur during transportation and in operation. It shall be used together with EN 2591. 2 Normative references EN 2591 EN 2591-C5 EN 2591-D8 EN 2591-FI EN 2591-F2 EN 2591-FA1 Aerospace serie
9、s - Elements of electrical and optical connection - Test methods - General 1) Aerospace series - Elements of electrical and optical connection - Test methods - Part C5 - Rapid change of temperature 2) Aerospace series - Elements of electrical and optical connection - Test methods - Part D8 - Mating
10、and unmating forces 2) Aerospace series - Elements of electrical and optical connection - Test methods - Part FI - Optical elements - Insertion loss 2) Aerospace series - Elements of electrical and optical connection - Test methods - Part F2 - Optical elements - Variation of attenuation and optical
11、discontinuity 2) Aerospace series - Elements of electrical and optical connection - Test methods - Part FA1 - Optical elements - Visual examination 2) 3 Preparation of specimens 3.1 Specimens shall be fitted with normal accessories and terminated in accordance with the product standard. Cavities wit
12、h unterminated contacts shall have filler plugs fitted (where applicable). 3.2 See EN 2591-C5 (if applicable) plus : Unless otherwise indicated in the technical specification, the following details shall be specified : - - - - type and length of cable/fibre; maximum value of insertion loss; maximum
13、permissible variation of attenuation; whether EN 2591-F2 is monitored throughout test or at the transient stages. 4 Apparatus See EN 2591-C5 and EN 2591-F2. 1) At the date of publication of this standard, general aspects of elements of optical connection are covered by a draft amendment which is in
14、preparation to the European Standard EN 2591. 2) Published as AECMA Prestandard at the date of publication of this standard. 0 Previous page is blank CEN PRENx259L- FC5 93 m 3404589 004bbbb 5T3 m prEN 2591-FC5 Page 4 5 Method 5.1 Initial measurements (if applicable) See EN 2591-C5. 5.2 Procedure See EN 2591-C5. Measure the variation of attenuation (EN 2591-F2, method A) continuously throughout the test. 5.3 Recovery See EN 2591-C5. 5.4 Final measurements and requirements - - - EN 2591-FA1 - Visual examination EN 2591-D8 - Mating and unmating forces EN 2591-FI - insertion loss
