The A1081 DoorBird I/O Door Controller offers tamperproof control of up to three doors or gates over a network. It can be installed in a protected interior area, such as a control cabinet in the basement and can be connected to the DoorBird IP video door station via the network. No physical wires have to be connected between the door or gate and the door station. The DoorBird I/O Door Controller therefore eliminates the risk of shorting and activating the electric door opener in case of unauthorized removal of the door station and makes your property/ building safer. The connection of the DoorBird I/O Door Controller to the network can be accomplished via network cable (PoE cabability) or WIFI. All signals between the door station and the DoorBird I/O Door Controller are transmitted tamperproof and encrypted according to banking standards. Up to three electric door openers can be connected to independent and configurable NO/NC relay contacts at the I/O door controller. The status of the relays will be displayed in the DoorBird App. Tampering by short circuit or an external voltage source, for example, is therefore preempted. While this type of relay is commonly referred to as isolated safety relay, the DoorBird I/O Door Controller is capable of far more. It provides status of the relay (i.e. open or closed) and offers the possibility to connect and monitor two external sensors such as e.g. a motion sensor or a contact switch.