Definition of Fire Alarm System is a system created to detect the presence of fire automatically so as to prevent fires from occurring. When there are changes around us that indicate a fire, this system will immediately give a fire signal, in the form of a siren sound. The change in question is an increase in room temperature, the sudden appearance of smoke, fire and gas. Therefore, this system is always equipped with sensors that are sensitive to heat, smoke, fire and gas. Referring to the meaning of the Fire Alarm System, the purpose of creating the Fire Alarm System is to prevent fires from occurring by finding the source of the fire so that it can be extinguished immediately before the fire spreads. For this reason, every building needs to install a Fire Alarm System. One company that is recommended as a provider of this product is TotalFire. Furthermore, in general, this Fire Alarm System is divided into two types, namely as follows.

Conventional System
This system uses a 2-Wire Type installation system, which uses two cables to connect the electric current between the detector to the detector and to the Panel. The name of the cable that is commonly used is NYM 2×1.5 mm or NYMHY 2×1.5 mm electrical cable which is pulled in a conduit pipe such as EGA or Clipsal. For critical installations, the appropriate type of cable is a fire-resistant cable or what is known as FRC (Fire Resistance Cable) with a size of 2×1.5 mm. The nature of this conventional system is limited, each zone requires a separate panel and is not centralized so that this system is suitable for use in buildings that are not too large or small-scale, say those in housing, shops or certain rooms in a building. which is secured.

2. Addressable System
   This system is suitable for large-scale buildings such as apartments and other high-rise buildings because it uses a digital code system that can automatically detect the location of a fire. Why is that? Because the existing installation in this system is connected in one alarm panel in the control room. How does this addressable system work? It's actually quite easy, we only need one control room to control the other rooms. If a fire is detected, the detector will send a signal to the central control so that it can be resolved immediately. Then, this system is divided into two, namely semi addressable system and full addressable system. The difference between these two types of work systems lies in the speed of location detection. The first system can only show fire detection in a zoning or wider area. The second system can show the location of the fire at a more focused location point. Furthermore, the placement of the Fire Alarm System sensor must be considered and adjusted to the characteristics of the room. One example, the kitchen room. The characteristic of this room is that it produces smoke, so this smoke detector is not suitable for placing in the kitchen. Detectors suitable for kitchen rooms are fire/LPG and LNG gas detectors. The second example, in a room that has high room temperature characteristics, heat detectors should not be installed because they will always sound a siren if a fire occurs. So what are the components of the Fire Alarm System? The following are its constituent components.

1. MCFA (Main Control Fire Alarm)
   Is the main component in the Fire Alarm System part of the protection system. MCFA has a very important function, which is to receive input signals from detectors and other protection components such as fixed heat detectors, smoke detectors, ROR heat detectors.
   
   Detector Tool
   This tool works automatically. This tool is divided into four types, namely heat, smoke, fire, and gas detectors.
   
   Fire Bell
   This tool functions as a siren that indicates a fire has occurred so that it can be identified immediately.
   
   Indicator Lamp
   It is a sign of an active alarm system and a sign of a fire. Thus, a brief description of Definition Fire Alarm System, types, and its constituent components. In order for this system to function properly when needed, we must always take care of it. Treatment can start from cleaning the cable or from checking the cable connection, whether something is disconnected or not. Apart from that, we also need to choose the right system provider company so that it really functions when needed. Well, one company that is qualified in this field is TotalFire. This company has been built for a long time and shows good performance.