To clarify that the operation of 2 stage fire alarm systems referred to in Sentence 3.2.4.4.(2) may be zone coded under certain conditions.
To limit the probability that a person in charge of fire safety and emergency response will be unable to ascertain the location of actuation of an alert signal without the need to respond to an annunciation panel and without delay, which could lead to directing evacuation of persons into a hazardous area, which could lead to harm to persons.