Up in QLD the setup up we use for fire/smoke doors is a relay (either 12vDC 0r 24vDC depends on the fire panel) in the door controller.
We set the relay up in a fail-safe configuration so that when there are no alarms the relay is energised (the feed to the relay is from the fire panel) so if the cable gets cut, disconnected, burnt or there’s an actual fire alarm it drops the power to the relay which than goes open to drop the power to the mag locks. You might also want to think about installing an emergency glass break at the doors
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