Fire alarm interfaces?

[paul11]

A bit of advice please to briefly explain what the score is with them




From ya panel to an inter face,
Then out of ya interface to your fire curtain (for example). Either normally closed or open depends on equipment .


Then when ya fire alarm sounds, your interface will become 24v and that will activate and do its job.




Is this correct, and how do you get 24v out of ya fire alarm panel, if there is none built into ya panel


Thanks

 

[tazz]

Partly when the fire alarm activates the interface is activated, when silencing the alarm (sounders) the interface stays activated, only when the panel is reset will the interface de-activate.
Interfaces or relays, must not come off the sounder circuit.

 

[paul11]

Thanks tazz