What are the differences between fire alarm and an evacuation alarm?

Fire Alarm is a device automatically activate when room temperature increase  or smoke comes out  . Evacuation alarms show that everybody should evacuate from building immediately

The fire alarm and evacuation alarm is the same thing because if you hear fire alarm you must evacuate the building to the assembly apoint which indicated by the safety department.

Fire Alarm is unplanned Fire Alarm warn the people in a builiding that the builiding is on fire

Evacuation alarms show that every body should evacuate from builiding immediately

Fire alarm will indicate a certain fire alarm signal to the control panel, and it could be indicated by a bell, a strobe or a strobe/horn, but Evacuation alarm could use the previous indications plus an evacuation message used by a recorded voice message or a Public Address System.

Fire alarm is the sound that triggers to signal emergency of fire has erupted and it can be checked its signal on the control panel,whereas evacuation alarm it signal people to get ready for building evacuation and the sound between both alarms are different.

Fire alarm system role is to sense the case of fire and to alert people for the fire case

Evacuation system role to announce that people should leave the buildings through known routes.

Fire ALarm is the system that detects the smoke or the fire and send message through an interface to the Evacuation system which generate an Evacuation message to the people in order to evacuate the building.

The system that detects the presence of smoke,fire or Heat and sends the message through an interface to the Evacuation system which plays a pre-recordered Evacuation message in order to evacuate the building.

Fire Alarm is a device such as a bell or siren that warns the people in a building that the building is on fire while Evacuation Alarm is  is the immediate and urgent movement of people away from the threat or actual occurrence of a hazard.

in Fire alarm  different set of devices work together when detect the heat, smoke  or temperature it produce different frequency of sound while evacuation alarm has different sound which indicate that worker evacuate the area immediately