.1 Each unit should be provided with a general
alarm system so installed as to be clearly perceptible in all parts
of the unit. Control stations for activating the alarm should be installed
to the satisfaction of the Administration. The number of signals used
should be limited to the following: general emergency signal, fire
signal and abandon unit signal. These signals should be described
in the muster list.
.2 The warning signals given over the general
alarm system should be supplemented by instructions over a public
address system.