. A recommended method is to cut each wire and leave a piece of the original insulation on the terminal to identify colors. System Identification
Urmet 1131 is a classic analogue intercom handset known for its simple 4+n wiring. Since manuals for older models can be sparse, this guide compiles the essential technical and wiring details needed for installation or replacement. Core Wiring Configuration (4+n System) urmet 1131 manual full
The input terminals are located on the transformer side, usually protected by a fuse. Since manuals for older models can be sparse,
This system utilizes an electronic call tone through a loudspeaker rather than a classic buzzer, and features an electret microphone for clearer audio transmission. The modular design allows for the addition of up to three extra pushbuttons, which can be programmed for a variety of functions, including opening a second gate, activating a stairwell light, or communicating with another apartment station. The modular design allows for the addition of
a specific issue like the microphone or door strike not working?
Click the cover of the 1131 into place. 3. Urmet 1131 Wiring Diagram Table (Common Mapping) To assist with your installation, Description CA Electronic Call Sound from entrance panel 1 Audio In (Speaker) 2 Microphone Audio Out (Microphone) 6 Common Ground 9 Door Lock/Release Button 10 Secondary Ground/Common 4. Troubleshooting and Tips
: Simple wall-mount design that fits standard interiors.