BACnet Broadcast Management Device
BBMDs allow BACnet to operate through IP Routers. Their prime purpose is to redistribute the essential broadcast messages that BACnet requires for discovery.
It is possible to use the BACnet protocol without broadcasts and discovery, by using "Static Addressing".
See this tutorial on how to connect two sites using BBMDs.
Bill Swan's articles "Building Wide-Area Networks with BACnet"
|APDU BBMD BVLC BVLL DADR DNET Encoding I-Am LSAP MAC NPCI NPDU NSAP NSDU SA SADR SNET|
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