The Elmdene 7422 module typically features the following terminal block for connection to the alarm control panel: Description Permanent 12V DC hold-off supply. R- Negative Trigger for the Sounder (Bell). ST- Negative Trigger for the Strobe. TR / TS
Tamper Return and Tamper Supply (connect to panel tamper zone). elmdene 7422-sfg-g3f manual
Features microprocessor control, hold-off supply failure detection, and automatic battery/piezo self-testing. Installation Guide The Elmdene 7422 module typically features the following
Listen for "audible tamper" clicks: a single click indicates a tamper closing; continuous slow clicks suggest the rear tamper is not fully closed. TR / TS Tamper Return and Tamper Supply
Connect the ENG terminal to a switched output on your panel to allow quiet maintenance without triggering the siren when opening the cover.
If required, fit the rear tamper extender and trim it so it closes firmly against the wall when the unit is mounted.