8.4.1 Performance standards and functional requirements
are provided in the LSA Code, chapter VII, section
7.2. The general emergency alarm system should be capable of
being operated from the navigation bridge and at least one other strategic
point. For passenger ships there should also be an additional activation
point in the safety centre. Strategic points are taken to mean those
locations, other than the navigation bridge, from where emergency
situations are intended to be controlled and the general alarm system
can be activated. A fire control station or a cargo control station
should normally be regarded as strategic points.
8.4.2 The system should be audible throughout
all the accommodation and normal crew working spaces. Normal crew
working spaces include spaces where routine maintenance tasks or local
control of machinery are undertaken.
8.4.3 In addition, on passenger ships, the system
should be recognizable at all places accessible to passengers as well
as on all open decks.