: While the handset is lifted or the call is active, press the door release button to verify the lock triggers. Important Technical Notes Connecting and Replacing Old Intercom with New Urmet 1131
To ensure a successful installation, you must map your existing wires to the correct numbered terminals on the Urmet 1131 Description Call Electronic call signal from the outdoor panel 1 Speaker Incoming speech from the door panel to the handset 2 Microphone Outgoing speech from the handset to the door panel 6 Ground (0V) Common ground for all audio and lock functions 9 / 10 Lock Release Contact points for triggering the electric door lock Step-by-Step Installation Guide urmet 1131 manual full
: Open your old handset and take a clear photo of the connections. Label each wire based on its terminal number rather than its color, as color standards vary greatly between buildings. Mounting the Base : Remove the cover of the Urmet 1131 : While the handset is lifted or the
Before starting, ensure you have basic tools like a small flathead screwdriver and wire strippers. Mounting the Base : Remove the cover of
: Insert each wire into the corresponding terminal (CA, 1, 2, 6, 9/10) and tighten the screws firmly.