Under the PD 6662: 2010 scheme, BS 8243 replaces DD 243 to give requirements for confirmation of intruder alarms. This guide helps with understanding of how systems work when using the method of unsetting described in Clause 6.4.5 (i.e. using a fob). The guide uses diagrams instead of words to describe a variety of possible events to show how the system should respond. For installers this guide will help to answer user questions and for manufacturers it will assist with equipment testing.
Form no: 104
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