I have a Cequra 2 siren connected to Comfort as follows:
SRN + +VE Hold off
SRN - Siren
COM -VE Hold off
Input Zone Tamper (-VE)
STR - Strobe
Two resistors supplied with Cequra were also needed from +VE Hold off to Siren and Strobe to prevent permanent activation. Siren and strobe are set to -VE applied/positive removed triggering SAB mode and siren reverse is not activated in settings.
The siren works fine when tested for a day or two but then stops activating to triggered alarms. The strobe always works correctly.
If I climb up and disconnect the battery and wired supply to "reboot" the siren so to speak it will work correctly again for a few days.
I suspect that the Alarm2beeps siren when arming command may have something to do with it as I have never heard beeps from the siren when arming, I have tried adjusting the siren lengths as mentaioned elsewhere to no effect.
Do you have any suggustions what might be causing my siren to hang like this?