Its fitted throughout a vessel above and below decks. It is used to make announcements to a ships company. It can be converted to activate certain alarms onboard the ship.
Ikuyo yonke inqanawa ngaphezulu nangaphantsi kwimigangatho yenqanawa. Isetyenziselwa ukwenza izaziso kwinkampani yenqanawa. Ingaguqulelwa kwii-alamu ezisebenzayo ezisenqanaweni.