fire alarm

Are you trying to understand how your fire alarm control panel works? Want to know everything about your control panel? If yes, you must first familiarize yourself with various control panel-related terms for better understanding.

1. Alarm Condition

An alarm condition is a state or condition that warns the operator of a problem with control panel system. It may also refer to the failure of the equipment to respond correctly. An alarm condition is indicated by sirens, horns, blinking lights, or a combination of audible and visual indicators.

2. Annunciator

An annunciator is a device which displays alarm, supervisory, and trouble conditions. It is most often used when the main fire or burglary control unit is mounted at a location that is not easily accessible.

3. Circuit Breaker

This is a switch that protects an electrical circuit from overload by opening the circuit when the current flow exceeds a predetermined level. This safety device can be reset either manually or electrically after the overload is removed.

4. Control Keys

The control panel has four types of keys or control keys on it.

  • Silence Signal Key – This key is used to turn off all the audio and visual devices connected to the notification appliance and put the panel sounder to silent.
  • Drill Key – This key is used to manually activate the audio and visual devices connected to the control panel.
  • Scroll Display Key – This key, when pressed, changes flashing lights to steady light signal and responds to a new alarm or signal.
  • System RESET Key – As the name suggests, this key, when pressed, resets the control panel functions. It clears all active inputs and disconnects all the connected devices.

5. Closed Circuit

In a closed circuit, there is a complete current path from the voltage source, through the circuit, and back to the voltage source.

6. Data Communication Link (DCL)

The means employed by an addressable type control panel to communicate with compatible devices in the field is known as DCL. These may include input devices, output devices, annunciators, and remote transponders.

7. Digital Voice Access Control Systems (DVACS)

It is a means by which several alarm systems can communicate with the central station over a network type of connection. It utilizes transponders connected to the control panel that is continuously interrogated by special receivers in the station.

8. Relay

A relay is an electrical-mechanical activated set of contacts used to make or break a circuit when it is electrically activated or deactivated.

There are numerous other terms related to control panels and their functioning. These terms may be also related to system or point trouble event, fire and alarm events, fire alarm mode of operation, system trouble mode of operation, CO alarm mode of operation, the special zone of operation, intelligent detector functions, remote terminal access, etc.  If you wish to know about all these control panel terms, you can get in touch with our control panel specialists.

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