ISO INTERNATIONAL STANDARD 7240-21 First edition 2005-07-01 Fire detection and alarm systems - Part 21: Routing equipment Systemes de detection et d'alarme d'incendie- Partie21:Equipementde transmission Reference number ISO 7240-21:2005(E) @ISO2005 ISO 7240-21:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please infom the Central Secretariat at the address given below. ISO2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56·CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2005 - All rights reserved ISO7240-21:2005(E) Contents Page Foreword. Introductior 1 Scope 2 Normative references 3 Definitions... 4 General requirements.. 5 Generalrequirementsforindications. 6 Quiescentcondition. 7 Fire alarm condition 8 Supervisorysignal condition... 9 Fault warning condition 10 Disabled condition. 11 Testcondition 12 Design requirements. 9 13 Additional design requirements for software-controlled routing equipment. 14 Marking 15 Tests.... 16 Test report. AnnexA(informative)Explanationofaccesslevels. Annex B (informative)Design requirements for software-controlled routing equipment. @ISO 2005-Allrights reserved ili ISO7240-21:2005(E) Foreword ISso (the International Organization for Standardization) is a worldwide federation of national standards bodies International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/lECDirectives,Part2 The main task of technical committees is to prepare International Standards. Draft International Standards adoptedbythetechnical committeesarecirculatedtothememberbodiesforvoting.Publicationasan International Standard requires approval by at least 75% of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 7240-21 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee Sc3, Fire detection and alarm systems. Iso 7240 consists of the following parts, under the general title Fire detection and alarm systems: Part 1:General and definitions Part 2: Control and indicating equipment Part 4:Power supply equipment Part 5: Point-type heat detectors Part6:Carbonmonoxidefiredetectorsusingelectro-chemicalcells Part 11: Manualcall points Part 12: Line type smoke detectors using a transmitting light beam Part13:Compatibilityassessmentof systemcomponents Part 14: Guidelines for drafting codes of practice for design, installation and use of fire detection and fire alarm systems in and around buildings [Technical Report] Part 15: Multisensor fire detectors Part 21: Routing equipment Part 22:Duct sampling equipment The following part is under preparation: Part 9: Test fire for fire detectors [Technical Report] iv @ ISO 2005 - All rights reserved ISO7240-21:2005(E) Introduction (ISO 7240-1:—,Figure 1, item E)and fault (trouble) warning routing equipment (ISO 7240-1:—,Figure 1, item J) into a single equipment Standard. Routing equipment receives signals from control and indicating equipment (IsO 7240-1:, Figure 1, item