Alarm synchonization question

Dear All!

I am trying to setup a synchronization between an external alarm module and Shelly Uni. I know the alarm module is correctly configured to open/close two outputs depending on the states of the alarm (output 1 close if alarm goes off, output 2 close if alarm is activated). This has been tested with Z-wave (Fibaro multi sensor) devices previously and now I try to get it to work with Shelly Uni instead but I am stuck.

wl-iog.jpg

The alarm device is a 3.3 v battery driven device (Visonic wl-iog) with one ground and two output connections (O1 and O2 programmed as described above). I have connected O1 to Shelly Uni IN_1 and O2 to Shelly Uni IN_2. I assume that a ground is needed as well (previously used the GND when synched to he Fibaro) between the Shelly Uni and the alarm modul but I cannot figure it out. The output state is not detected in the Shelly app. I have tried using the GND_SENSOR (#6) as ground. If I do not connect any ground (GND) at all it does not register the connection at all. If I connect the DATA cable (blue #5) to the Alarm GND they are both indicated as on (which is wrong).

shellyuni.jpg

Anything I am missing or suggestions on how to configure this? Any help would be apprechiated...

The alarm manual says the following "The two general purpose outputs are designed for controlling

apparatuses having dry-contact control inputs". There seem to be a current on the outputs accordng to image above but it may also describe max current. Any suggestion on how to solve this?

The current is stated in the manual :

Outputs: Up to 15VDC (OFF state, open loop, ~20uA leakage current)

Up to 1A (ON state, close loop, ~0.25V terminals dropout)

Hi!

I use a 12 V power supply for the Uni. I can connect to it and the Uni works - its just that it does not read the states of the channels or the inputs. I do not have any resistors at home but I can of course buy some if I believe it will work to find a solution