Answer Posted / naveen joshi
BMS is bacnet (building automation and controll network) based system .running via Ethernet in main controll device (router station) and lon/talk in branch device(DDC Controler station).ethernet can handle 10 to 100mb data, while lon/talk up to 75kb data. Entire system divided in segment through router station .a analog to digital converter or digital to analog placed in between computer software and ethernet connected router station to operate ,monitor the hvac ,power substation and fire system.
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