LG BECON HVAC BACnet PQNFB17C1 Installation & User Manual page 28

18
INSTALLING ACP BACnet
Caution
If a different type of connection is made other than BUS format as in the figure, the product may
malfunction. So be careful during the installation.
Connecting Ethernet cable (LAN cable) to the ACP BACnet
After connecting the ACP BACnet and RS-485 cable, Ethernet cable shall be connected to the ACP
BACnet.
ACP BACnet may be connected to hub through Ethernet cable, or directly to AC Manager IV.
Connecting the ACP BACnet and hub
It is the case of connecting the ACP BACnet to the basic internet network installed at the site, and it
is generally connected to the hub.
In such case, Ethernet cable shall be connected as a direct cable.
Use Ethernet cable (direct cable) to connect to LAN port of the ACP BACnet.
Connecting ACP BACnet and PC
It is the case of installing AC Manager IV in a separate PC and connecting ACP BACnet and PC
directly.
In such case, Ethernet cable shall be connected as a cross cable.
Use Ethernet cable (cross cable) to connect to LAN port of the ACP BACnet.