LG V-NET AC Smart II Advanced Control Smart Owner's Manual page 29

3
. Pull out the RS485 cable through the hole of the rear panel and connect it to the socket.
Use the ʻ-ʻ driver to connect the two RS485 communication cable as follows.
Caution: RS485 communication cable connection
When connecting the RS485 communication cable, be careful not to mix the polarities
of the two lines
4
. Connect the RS485 socket to the RS485 port located on the rear side of the AC SMART II main
unit.
RS485 - RX (BUS-B)
RS485 - TX (BUS-A)
2. AC Smart II Installation
BUS-B
BUS-A
Installation/Owner's Manual
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