Urmet 1131 Manual Full !link! May 2026

The Urmet 1131 is an Atlantico series analog intercom, designed for 4+N wire residential systems with standard terminal mapping for audio, door release, and electronic calls. While widely used for replacement, digital 2-wire variants like the 1131/520 exist and support volume adjustment via internal jumpers. For detailed installation, review the data sheet on Intercoms R Us. House Phone Ref. 1131/520 - Miwi Matibus SE - ManualsLib

From the Manual:

Section 2: Wiring – The 2-Wire Bus System

This is the heart of the installation. Unlike traditional analog systems that require 4+ wires, the Urmet 1131 uses a two-wire bus (polarized). urmet 1131 manual full

Connect Device V+ to PSU +.

Connect Device GND/V- to PSU -.

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