Code on Alerts and Indicators, 2009 2010 EDITION London, 2010 iii Contents Foreword ............................................ v Resolution A.1021(26) (adopted on 2 December 2009) ......... 1 Code on Alerts and Indicators, 2009 1 Purpose and scope ............................ 3 2 Application .................................. 4 3 De?nitions .................................. 4 4 General .................................... 7 5 Audible presentation of alerts and calls ............. 9 6 Visual presentation of indicators and calls ........... 11 7 Characteristics ............................... 12 8 Requirements for particular alarms ................ 17 9 Grouping and aggregation of alerts and indicators . . . . . 18 10 Alert and indicator locations ..................... 21 11 References .................................. 50 Appendix Sample of indicator columns with dimensions (mm) .. 52 Tables 7.1.1 Emergency alarms ............................. 13 7.1.2 Alarms ..................................... 14 7.1.3 Call signals .................................. 16 7.2 Audible signals and call waveforms ................ 16 9.1 Grouping/aggregation of alerts and indicators: machinery space attended, remote control of the main propulsion machinery from the navigation bridge not provided ... 20 Contents iv Tables (continued) 9.2 Grouping/aggregation of alerts and indicators: machinery space attended, remote control of the main propulsion machinery from the navigation bridge provided ...... 20 9.3 Grouping/aggregation of alerts and indicators: machinery space unattended, remote control of the main propulsion machinery from the navigation bridge provided ...... 21 10.1.1 Location: navigation bridge ...................... 22 10.1.2 Location: machinery space/machinery control room ... 30 10.1.3 Location: central ?re control station where provided ... 36 10.1.4 Location: at the equipment or at the location being monitored ............................... 37 10.1.5 Location: engineers’ accommodation .............. 40 10.1.6 Location: miscellaneous ........................ 41 10.1.7 Location: cargo control station ................... 45 10.1.8 Location: not indicated by IMO instruments ......... 48 10.1.9 Location: central ballast control station of column-stabilized MODUs ...................... 49 Published in 2010 by the INTERNATIONAL MARITIME ORGANIZATION 4 Albert Embankment, London SE1 7SR www.imo.org Printed in the United Kingdom by CPI Books Limited, Reading RG1 8EX ISBN: 978-92-801-1526-0 IMO PUBLICATION Sales number: IB867E Copyright © International Maritime Organization 2010 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without prior permission in writing from the International Maritime Organization. This publication has been prepared from of?cial documents of IMO, and every effort has been made to eliminate errors and reproduce the original text(s) faithfully. Readers should be aware that, in case of inconsistency, the of?cial IMO text will prevail.