Konnected Siren Wiring - European siren with SCB/TDAB

[daneboom]

Hi!

Just bought a Konnected Pro alarm. Impressed so far. I think the problems I’ve had are WiFi related and also some faulty sensors here. Otherwise all OK!

Anyway I’ve done all the sensors for now, got to connect the Siren.

I get the impression (from Googling) that Euro commercial sirens are different to US sirens. Mine has Strobe & TDAB (SCB) contacts.

Anyone know how I’d connect this to Konnected?!

My THINKING is…

T - don’t need to bother with, it’s tamper and Konnected ‘Pro’ doesn’t offer any tamper connections!
A - Ground
D - +12v
B - this is the one I’m unsure of - I think it’s the trigger to make the siren sound - I guess it’s either normally 0v or normally 12v and I don’t know which. Or if I’ve understood correctly.
Any help greatly appreciated. Thanks

[samnewman86]

b is connected to 0v, removing the connection should trigger the bell. Also known as bell hold off

[daneboom]

Thank you - Konnected support got back to me and provisionally advised (based on their inferences)

Strobe goes to Alarm -
T goes to 12V+
A goes to Aux -
D goes to 12V+
B goes to Alarm -

I’m not sure about them saying T goes to 12v+ as quite clearly the above diagram shows it going to
- Ve.

I’m still unsure if Aux - is the same as one of the GND connections and I’m not at all sure how I’d remove the connection programmatically?

Thank you!

[dgalifi]

Hi, did you manage to connect your siren to the Konnected board? I have the same SCB TADB siren and I can’t seem to make it work.

I’ve already tried what you suggested with no luck.

Thanks