Cut Sheets & Documents: Basic Premise Control Unit Model: CU5-1 The Module CU5-1 Premise Control Unit provides a physical enclosure/interface for devices used in securing a specific area. The CU5-1 interfaces various detection devices in the secured area to a monitoring facility which is located away from the secured area. The detection devices consist of electrically “closed” switch or relay dry contacts which “open” when a specific change is detected. The detection devices are interfaced to the monitoring facility (i.e., Desplex MP5 series monitoring/supervisory panel) via a termination module (i.e., Desplex TM5 transmission module) installed in the CU5-1 enclosure. The detection devices are typically the relay contacts from Balanced Magnetic Switches (i.e., perimeter protection) used in protecting an access point into the secured area or the relay contacts from the output of a detection module used for detecting some other type of alarm condition (i.e., volumetric). The basic CU5-1 consists of a metal enclosure, housing a motherboard and appropriate support hardware. CU5-1