Digital uniphone for the MATIBUS, BASIC system with an additional button.
It is possible to add 3 independent function buttons (1131/100).
In the MatibusSE system, it is possible to use 2 function buttons (controlling the NO-NC relay in the panel and calling the control panel) without the need to expand the installation.
The uniphone is connected to the riser by means of 2 wires.