There are two main types of fire alarm – Conventional & Addressable
Conventional fire alarms are more commonly used in smaller premises or dwellings. They work on a radial wiring system with end of line monitoring at the last device. Detectors such as call points & smoke detectors can be wired on the same zone but no further ID is given at the control panel. A visual check on each device on a specific zone would verify which detector had activated the alarm. A red led would be illuminated until control panel is reset. Sounder are also wired in radial circuits with end of line monitoring. This would be a cost effective way to protect your property however it may not suit your system category.
Analogue addressable fire alarms are used in most properties and there is much more detail produced to the user and also this type will cover all system categories.
These systems can be used anywhere from small offices or large hospitals. Panels can take up to 8 loops with over 100 points per loop. Panels can also be networked together to make even larger.
All device types can be fitted on a loop. Devices also have loop isolators installed within them to prevent loop shutdown. Interfaces can be fitted to the loop to integrate with gas systems, air sampling systems or even conventional fire alarm control panels.
Devices that connect to the loops can be multi type such as smoke detectors with sounders or heat detector with beacons and so on. There are many types available to suit every possible environment.