LG BNU-BAC Owner's Manual page 20

How to install
• If there are many outdoor units, distribute the lines to LG-NET 1~4 to improve the control speed.
[Example for distributing the lines to LG-NET 1 and LG-NET 2]
LG-NET 1
LG-NET 2
1
DI
LG-NET 3
2
3
4
LG-NET 4
5
6
7
8
9
10
11
12
13
14
Ethernet 1
15
16
17 MENU/
Ethernet 2
18 SELECT
19
20
Console
1
DO
2
3
4
20 BACnet Gateway
Bus_B
TX
TX
RX
TX
Bus_A Bus_A Bus_A
RX
RX
TX
RX
TX
RX
TX
Ext 1 TX
RX
TX
Ext 2
RX
ACT
RX
LNK
ACT
LNK
TX
RX
Run
Power
Multi V
ON KSDO4H
L1 2 3 4
PI485
Multi V
ON KSDO4H
L1 2 3 4
PI485
Multi V
ON KSDO4H
L1 2 3 4
PI485
Bus_B
Bus_A Bus_A Bus_A
ON KSDO4H
L1 2 3 4
PI485
ON KSDO4H
L1 2 3 4
PI485
ON KSDO4H
L1 2 3 4
PI485
Multi V
Multi V
Multi V