Connceting Rs485 Cable To Pi485 - LG PQCPA11A0E Installation & Owner's Manual

2. Installing ACP

Connceting RS485 cable to PI485

In order to connect the PI485 and the ACP, two RS485 cables should be connected to the BUS_A and
the BUS_B of the PI485. Connect the RS485 cables by referring to the following figure.
When connecting more than one PI485 to one ACP, connect the BUS_A/BUS_B of the PI485 to the
BUS_A/BUS_B of the other PI485 respectively.
2-16
ACP