scope:

This International Standard defines terms and specifies requirements and tests for vehicle alarm systems (VAS) intended for installation within buses and commercial vehicles (as defined in ISO 3833) having a maximum authorized total mass (code ISO-M08 as defined in ISO 1176) of greater than 3,5 t. It is applicable to VAS designed to detect or sense, and to indicate, the unauthorized opening of a vehicle's doors, luggage-compartment lids, bonnet/hood and emergency exits, as well as the tilting of the driver's cabin and the disconnection of a trailer or of the power supply. It covers both VAS intended for installation as original equipment, and those intended to be installed after delivery of the vehicle. Systems for volumetric protection, which are optional, have to be tested individually and - as a consequence and in accordance with this International Standard - against their own specifications. Examples of tests that can be performed are given in annex A.