No, you can not connect a wired siren to the external contact of opening detectors:
- DoorProtect Jeweller
- DoorProtect Plus Jeweller
- DoorProtect S Jeweller
- DoorProtect S Plus Jeweller
- DoorProtect Fibra
- DoorProtect Plus Fibra
- DoorProtect G3 Fibra
The external terminal is a digital input, not a power output.
The third-party wired siren can be connected to Relay Jeweller and MultiRelay Fibra.