18 V DC - 1100 mA power supply unit for Z1 video entry phone systems.Plastic casing for installing on switchboards (EN50022) and size 12 low DIN modules. Control board for managing 18 V DC - 1100 mA max., video intercom entry panels and for managing the main 20 V DC - 800 mA max., video intercom. It has electronic, overload or short circuit protection. Equipped with terminals for managing the main bus line and terminals for connecting, over bus line, 3 video intercom entry panels. Built-in intercom selector. Open collector outputs for auxiliary functions (AUX1 and AUX2). Manual or PC programming via MINI USB connector. Entry jumper for programming the access control devices. 230 V AC 50/60 Hz supply from the power grid. IP30 water and dust protection rating.