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ENGLISH
PREPARATION
AC Smart BACnet's RS485 connection
An AC Smart BACnet can have up to 128 indoor units. If there are many outdoor units to be
connected, connect them to a bus. If not, AC Smart BACnet may malfunction.
<Good example: RS485 BUS form connection> <Bad example: RS485 STAR form connection>
NOTES
Maximum node numbers which can be connected to RS485 communication line.
y
Multi V
Maximum of 16 nodes can be connected to 1 RS485 line.
y
Multi/Single
Maximum of 32 nodes can be connected to 1 RS485 line.
y
ERV
Maximum of 32 nodes can be connected to 1 RS485 line.
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