Urmet 1131 Manual Full !new! Jun 2026
Receives audio signals from the external door entry panel speaker. Microphone Input
Because the Urmet 1131 uses a standard analog framework, it can easily replace older handsets from Bitron, Comelit, Fermax, or Terraneo. Use this universal comparison chart to map your old wires to the Urmet 1131 terminals. Fermax (Classic) Comelit (Vox 2100) Bitron Terraneo (600) Speaker (Ear) 1 Microphone 2 Ground (Common) 6 Buzzer (Call) 7 Lock Release 9 Troubleshooting Common Issues Issue 1: The Door Lock Release Does Not Work
Analog, electronic call chime (non-buzzer standard).
: Common Ground (0V) – the shared return path for the system. urmet 1131 manual full
: Lift the handset to establish two-way communication.
Utilized for local inter-apartment routing or secondary functions. 4+n System Standard Wiring Diagram
: 4+n (4 wires for audio/power plus 1 wire per apartment for the call signal). Compatibility Receives audio signals from the external door entry
Note: In many standard installations, terminals 6 and 10 are linked together via a metal jumper or wire loop to establish a shared common ground for both speech and lock release functions. Step-by-Step Installation & Handset Replacement 1. Preparation and Safety
The Urmet 1131 system has a range of technical specifications that make it a reliable and efficient solution for various communication needs. Some of the key technical specifications of the system include:
The is a widely used, classic intercom handset (interfonska slušalica) designed for traditional analog systems, commonly used in residential buildings with 4+n wire technology . Known for its durability and simple design, it allows communication between the handset, main door panel, and a door release mechanism. Fermax (Classic) Comelit (Vox 2100) Bitron Terraneo (600)
The Urmet 1131 is a modular intercom system designed to provide efficient and secure communication between different areas of a building or complex. The system consists of a central unit, which serves as the brain of the operation, and various peripheral devices such as audio and video modules, door stations, and entrance panels.
: 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