No, the siren needs a permanent + 12V power supply, not just when triggered.
It has a constant power supply. Plus OUT is permanent.
Unplug plus power from + TR.
By the way: the quiet siren sound may not necessarily be due to an incorrect connection. The housing assembly and wall mounting also have a great impact. However, a device fault cannot be excluded.
The discussion revolves around connecting the SL-550 alarm siren to the Satel CA4V1 control panel. The user initially reports that the siren flashes but is very quiet. Responses highlight the need for a constant power supply for the siren, as indicated in the provided diagrams. Suggestions include ensuring the correct wiring configuration and checking the siren's housing and mounting, which can affect sound output. Despite attempts to adjust the setup, the user ultimately considers returning the siren under warranty due to persistent low volume issues. Summary generated by the language model.