Connecting an outdoor siren

The outdoor siren is usually connected to a permanent power supply, which provides charging the built-in battery. In addition to its own acoustic transducer and battery, the siren is also usually equipped with a blinker and control electronics.

The siren is activated either by disconnecting the supply voltage (sabotage), or by activation input (alarm). It is also usually equipped with a tamper contact (a sabotage contact), whose state is either transmitted to the system, or its activation (opening the cover) triggers the siren (a sabotage again).

The outdoor siren should be installed on the facade of the house to such a height that it cannot be easily reached, which reduces the risk of its being disabled. It is recommended to cover it against direct rain (under the roof) and find a protected place from falling snow and ice, which should be clearly visible from the neighbourhood; it could deter potential intruders.

Depending on the type of siren, its electronics contains activation inputs either for +

or –. These options should be consulted in the user manual for each particular siren and use

the corresponding output in the control panel to activate the siren.