Discover the Comelit 1252 Simplebus1-2 Users Expansion Interface, a versatile solution for your communication needs. This interface allows up to 16 monitors or telephones to connect simultaneously, ensuring they all ring at the same time for efficient communication. Despite its expansive capabilities, the 1252 model does not supply power to the monitors, ensuring you manage your power sources efficiently. It occupies only 6 DIN modules and operates on a power supply ranging from 120-230 Vac. Ideal for both small and large setups, this product promises a seamless integration into your existing system. Enhance your communication setup today with Comelit 1252!