5V High/Low Level Relay Module (variant 2)

Konnected

Wiring illustration with a 5V relay

This illustrates how to wire the siren relay when powering the device and the siren from your existing alarm panel. The black wire to the siren should remain connected to the BELL- or AUX- terminal on the alarm panel.

The following illustration shows how to wire the siren relay when powering the device with a 12V power adapter at the base.