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
: 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 urmet 1131 manual full
: If your old system has a common ground for the lock and audio, terminal 6 may need a link to terminal 10. Testing the System : To ensure a successful installation, you must map
: Lift the handset and check for a dial tone or background noise from the street. Have someone speak at the door station to verify clarity. Have someone speak at the door station to verify clarity
: Hang up the handset and have a visitor press your bell. The electronic tone should be audible.
: Insert each wire into the corresponding terminal (CA, 1, 2, 6, 9/10) and tighten the screws firmly.
Before starting, ensure you have basic tools like a small flathead screwdriver and wire strippers.