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Hardware setup
S1A53844 01/2011 17
B
A
GND
BACnet open style connector
RS485 transmission data, reception
data.
SCR
BACnet communication shield terminal.
This terminal is not connected to other circuits in the board.
Ground this terminal in a location separated from the ground of the power line.
B
A
GND
SCR
SW103
47k
47k
4.7k
4.7k
120
TERM