Thanks for details.this details is help for home automation .we have problems with fire alarm products with 2 wire communication over 24 volt bus line for maximum distance of 1.5 km having one master & 250 slave
24 volt DC supply is for supply of micro controller used for communication in slave PCB & for relay drive.What is the function of the 24V bus line? What does it power?
Is this an existing installation that is faulty or is this a quest for a new design?
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by Jake Hertz