Emerson Liebert PEX Series - Host Communication Networking Diagram

Chapter 6 Application Of INTELLISLOT 83
5. Expand the SNMP node at the left side of the interface shown in Figure 6-13 and click Traps to set IP Address,
Port and Community of the NMS used for receiving Traps. After modifying, you must click Save to save the setting.
Figure 6-13 NMS configuration interface of SNMP host monitoring center (2)
6.4 Host Communication Networking Diagram
The networking diagram of the TCP/IP communication card (SNMP protocol) is shown in Figure 6-14. The connection
number of air conditioner is not limited.
HUB
…
Air conditioner 1 TCP/IP
communication card
Air conditioner 2 TCP/IP
communication card
Air conditioner n TCP/IP
communication card
Network cable
connection
Monitoring center
Network cable
connection
Network cable
connection
Network cable
connection
Figure 6-14 Networking diagram of TCP/IP communication card
 Note
The single air conditioner unit does not need HUB.
The networking diagram of the 485 communication card (Modbus protocol) is shown in Figure 6-15. Up to 32 air
conditioner units can be connected.
…
Air conditioner 1 485
communication card
485 connection
485 connection
485 connection
485 connection
Monitoring center
Air conditioner 2 485
communication card
Air conditioner 32 485
communication card
Figure 6-15 Networking diagram of 485 communication card
Liebert.PEX2 Series Air Conditioner User Manual