1、NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 91 2 Deuxime dition Second edition 1996-06 Instrumentation nuclaire - Interconnexions ECL (logique par metteur coupl) sur panneau avant dans les logiques de comptage Nuclear instrumentation - ECL (Emitter Coupled Logic) front panel interconnections
2、 in counter logic Numro de rfrence Reference number CEIAEC 912: 1996 Numros des publications Depuis le ler janvier 1997, les publications de la CE1 sont numrotes partir de 60000. Publications consolides Les versions consolides de certaines publications de la CE1 incorporant les amendements sont disp
3、onibles. Par exemple, les numros ddition 1.0, 1.1 et 1.2 indiquent respectivement la publication de base, la publication de base incorporant lamendement 1, et la publication de base incorporant les amendements 1 et 2. Validit de la prsente publication Le contenu technique des publications de la CE1
4、est constamment revu par la CE1 afin quil reflte ltat actuel de la technique. Des renseignements relatifs la date de reconfirmation de la publication sont disponibles dans le Catalogue de la CEI. Les renseignements relatifs des questions ltude et des travaux en cours entrepris par le comit technique
5、 qui a tabli cette publication, ainsi que la liste des publications tablies, se trouvent dans les documents ci- dessous: Site web de la CEI“ Catalogue des publications de la CE1 Publi annuellement et mis jour rgulirement (Catalogue en ligne)* Disponible la fois au site web, de la CEI et comme priodi
6、que imprim Bulletin de la CE1 Terminologie, symboles graphiques et littraux En ce qui concerne la terminologie gnrale, le lecteur se reportera la CE1 60050: Vocabulaire Electro- technique International (VE I). Pour les symboles graphiques, les symboles littraux et les signes dusage gnral approuvs pa
7、r la CEI, le lecteur consultera la CE1 60027: Symboles littraux A utiliser en lectrotechnique, la CE1 6041 7: Symboles graphiques utilisables sur le matriel. Index, rele ve et compilation des feuilles individuelles, et la CE1 6061 7: Symboles graphiques pour schmas. * Voir adresse 4te web, sur la pa
8、ge de titre. Num bering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. Consolidated publications Consolidated versions of some IEC publications including amendments are available. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to th
9、e base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Validity of this publication The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. I
10、nformation relating to the date of the reconfirmation of the publication is available in the IEC catalogue. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is t
11、o be found at the following IEC sources: IEC web site* Catalogue of IEC publications Published yearly with regular updates (On-line catalogue)* Available both at the IEC web site* and as a printed periodical IEC Bulletin Terminology, graphical and letter symbols For general terminology, readers are
12、referred to I EC 60050: International Electrotechnical Vocabulary (IEV). For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are referred to publications IEC 60027: Letter symbols to be used in electrical technology, IEC 60417: Graphical symbols for use o
13、n equipment. Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols for diagrams. * See web site address on title page. NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 91 2 Deuxime dition Second edition 1996-06 Instrumentation nuclaire - Interconnexions ECL (logique
14、par metteur coupl) sur panneau avant dans les logiques de comptage Nuclear instrumentation - ECL (Emitter Coupled Logic) front panel interconnections in counter logic 0 CE1 1996 Droits de reproduction rservs - Copyright - all rights reserved Aucune partie de cene publication ne peut any IEC National
15、 Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (6
16、0) in accordance with conditions determined by agreement between the two organizations. The formal decisions or agreements of the IEC on technical matters, express as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation
17、from all interested National Committees. The documents produced have the form of recommendations for international use and are published in the form of standards, technical reports or guides and they are accepted by the National Committees in that sense. In order to promote international unification
18、, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 2) 3)
19、4) 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. Attention is drawn to the possibility that some of the elements of this international Standard may be the subject of paten
20、t rights. IEC shall not be held responsible for identifying any or all such patent rights. 6) International Standard IEC 912 has been prepared by IEC technical committee 45: Nuclear instrumentation. This second edition cancels and replaces the first edition published in 1987 and constitutes a techni
21、cal revision. Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. -6- 912 O CEI:1996 INTRODUCTION La prsente Norme internationale sappuie sur les recommandations des principaux constructeurs de logique par metteur coupl
22、(ECL) pour les communications entre les diffrentes parties dun systme. Celles-ci conseillent lutilisation de lignes diffrentielles, en mission et en rception, pour disposer dune forte immunit au bruit et saffranchir des diffrences de potentiel de masse. 912 O IEC:1996 -7- INTRODUCTION This Internati
23、onal Standard is based on the recommendations of the major emitter coupled logic (ECL) manufacturers for communication between different parts of a system. They advise differential line driving and receiving for high noise immunity and cancellation of ground potential differences. -8- 912 O CEI:1996
24、 INSTRUMENTATION NUCLAIRE - INTERCONNEXIONS ECL (LOGIQUE PAR METTEUR COUPL) SURPANNEAUAVANT DANS LES LOGIQUES DE COMPTAGE 1 Gnralits 1.1 Domaine dapplication et objet Cette Norme internationale sapplique aux instruments modulaires utiliss en instrumen- tation nuclaire et dans dautres applications. I
25、I sagit dun supplment diffrentes normes de la CE1 incluant la CE1 516 et la CE1 547. 1.2 Rfrences normatives Les documents normatifs suivants contiennent des dispositions qui, par suite de la rfrence qui y est faite, constituent des dispositions valables pour la prsente Norme internationale. Au mome
26、nt de la publication, les ditions indiques taient en vigueur. Tout document normatif est sujet rvision et les parties prenantes aux accords fonds sur la prsente Norme internationale sont invites rechercher la possibilit dappliquer les ditions les plus rcentes des documents normatifs indiqus ci-aprs.
27、 Les membres de la CE1 et de IISO possdent le registre des Normes internationales en vigueur. CE1 51 6: 1975, Systme modulaire dinstrumentation pour le traitement de linformation: systme CAMAC Modification 1 (1984) CE1 547: 1976, Tiroirs et chssis de 19 pouces bass sur le systme NIM (pour appareils
28、dlectronique nuclaire) Modification 1 (1 985) 2 Amplitude et niveaux des signaux Rgle Les signaux doivent tre de IECL 10 K ou 10 KH, pour attaquer des paires diffrentielles, avec le niveau nominal de -0,9 V sur une ligne et le niveau nominal de -1,7 V sur lautre ligne. (En ECL pour une ligne positiv
29、e, le niveau -0,9 V est le l. logique et le niveau -1,7 V est le O. logique, comme indiqu dans le tableau 1.) Tableau 1 - Niveaux logiques pour les interconnexions ECL en logique positive Tensions Niveaux logiques 912 O IEC:1996 -9- Voltage V NUCLEAR INSTRUMENTATION - ECL (EMITTER COUPLED LOGIC) FRO
30、NT PANEL INTERCONNECTIONS IN COUNTER LOGIC Logic levels 1 General 1.1 Scope and object This International Standard is applicable to modular instruments used in nuclear instrumentation and other applications. It is supplemental to several IEC standard including IEC 516 and IEC 547. 1.2 Normative refe
31、rences The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on
32、this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IEC 51 6: 1975, A modular instrumentation system for data h
33、andling; CAMAC system Amendment 1 (1984) IEC 547: 1976, Modular plug-in unit and standard 19-inch rack mounting unit based on NIM standard (for electronic nuclear instruments) Amendment 1 (1985) 2 Signal amplitude and levels Rule Signals shall be ECL 10 K or 10 KH for driving differential pairs with nominal -0,9 V level on one line and nominal - 1,7 V level on the other line. (For ECL positive logic a -0,9 V level is a logical “1 ” and a - 1,7 V level is a logical ”O” as in table 1 .) Table 1 -Logic levels for interconnections for ECL positive logic -0,9 -1.7 1 O
