ALC: Automated Logic Controller
BACnet: Building Automation and Control Network
BBMD: BACnet/IP Broadcast Management Device
From BACNet.org:
BACnet (Building Automation and Control Network) is the global data communications standard for building automation and control networks. It provides a vendor-independent networking solution to enable interoperability among equipment and control devices for a wide range of building automation applications. BACnet enables interoperability by defining communications messages, formats and rules for exchanging data, commands, and status information. BACnet provides the data communications infrastructure for intelligent buildings and is implemented in hundreds of thousands of buildings around the world.
