Integrated services digital network based facility management system

摘要: A facility management system including control devices, monitoring arrangements, and actuating arrangements is provided. Each device connected to every other through a group of Integrated System Digital Network (ISDN) bearer channels (B-channels). further arrangement an ISDN data channel (D-channel). This allows each communicate with all devices without any intervening communication processing by devices. Thus, this does not create the throughput bottlenecks reliability problems inherent in systems which necessitate such intervention. The components are networked over telephone lines, thus, require installation separate network lines between component.