The Modis Lock hardware consists of a host unit paired with up to four reader units and can control two doors.
The host unit (Modis Lock Host) connects to the central access control panel on your premises—the central unit that controls the electronic locks. A single Modis system can control up to two doors (controlling the locking mechanism and detecting whether doors are opened or closed).
The host unit is also connected to the user-facing reader units which are usually positioned next to entrances and exits. The host unit controls the readers from up to 600 meters. It supplies power and communicates with the reader with a 4-wire connection running through a single cable.
For detailed information see User Manual.