In an embodiment, within these basic groups of detection units 408 may be various detection unit 408 types. Some detection unit 408s may be designed to be hard wired via RJ-45 connectors and/or CAT 5e cable, other detection units 408 may use 802.11b (WI-FI) wireless communications between detection units 408, and there may also be an Infra Red (IR) set of detection units 408 which utilize optical communications techniques. Each communications type may have a specific purpose within the corrections facility or other type of building and/or areas. Hard-wired units may be used when it is not possible to use either an optical unit or a WI-FI unit or used when there are walls embedded with metal or where the distance and the obstructions 102 may preclude a wireless technique. WI-FI detection units 408 may be used when it is effective to communicate in an area where there are obstructions 102 such as cement walls or cement with embedded rebar walls, facades, and the like. Optical detection units 408 may be used in areas where clear, line-of-site communications may be possible. Optical detection units 408 may operate over relatively long distances, (e.g., 3,000 feet), while WI-FI detection units 408 may be limited to shorter distances, such as 250 feet. In an embodiment, the wired configuration (Cat 5 configuration), may utilized cat 6 or higher bandwidth throughput technology and the like. The system, sensors and sub-stations, consoles and switches and access points, additionally provide a data transmission and communication backbone for other technologies and data collection and data transceiver methodologies and the like.