1. SCOPe 1.1 This Standard covers requirements for control units, fire alarm systems
and control unit accessories for use in accordance with the Standard for the
Installation of Fire Alarm Systems, CAN/ULC-S524, in accordance with Rule
32-004(1) of the Canadian Electrical Code, Part I, and the National Building
Code of Canada. 1.2 If a fire alarm system incorporates the features and functions of a
proprietary system, then the requirements of ULC/ORD-C693.5, Central Station
and Proprietary Fire Protective Signalling Systems Equipment, shall also apply. 1.3 Transponders of distributed type systems are classified as control units
and the requirements of this Standard shall apply. 1.4 These requirements apply to control units and control unit accessories for
ordinary indoor locations. 1.5 These requirements do not apply to field devices unless the device is
used as a component of a control unit or control unit accessory. 1.6 This Standard does not include safety requirements that are covered by the
authority having jurisdiction. 1.7 Test, service, and other software and programming methods intended for use
with the control unit shall be evaluated with the control units. 1.8 Changes or additions to the products covered by this Standard shall be
submitted to a nationally recognized certification laboratory for review and
shall be tested according to the relevant sections of this Standard. Examples
of changes and additions may be: A Firmware; B Change or additional features to system operation (e.g. voice alarm); C Electrical/electronic or mechanical components; and D Other software temporarily or permanently installed in a control
unit, such as for test or maintenance. 1.9 The term "product" as used in this Standard refers to all items of
equipments covered by the Scope. 1.10 Unless otherwise indicated, all voltage and current values stated in this
Standard are root-mean-square (RMS). 1.11 The requirements of this Standard apply uniformly to all equipment
regardless of whether used as a component of a control unit or separately
enclosed and referred to as a control unit accessory.