Gree MG30-24/D1(B)

BACnet Gateway Kit for Central Air Conditioners
13
Fire
Vent
Electricity
Lift
BMS
Lighting
Internet(BACnet/IP Protocal)
COM2
COM1
COM2
COM2
COM1
COM2COM2
COM1
COM2
ID Unit 1
Soldering
Point
OD Unit
Control
Cabinet
L1
L2L2
L1 L1
L2
ID Unit 2
ID Unit 16
ID Unit 1
ID Unit 2
ID Unit 16
ID Unit 1
ID Unit 2
ID Unit 16
Commun-
module
1
Commun-
module
4
WEB Client
L3
HUB
L3
Intranet(BACnet/IP
Protocol)
Other BACnet
Gateway
BACnet
Gateway
BACnet
Gateway
Soldering
Point
Soldering
Point
OD Unit
OD Unit
Fig.3-6 BACnet Network Topology
1) The communication module shown above is just taken as example, and always see the real
communication module for the actual interfaces.
2) As shown in the gure above, “L3” represents the universal communication line between
RJ45 interfaces.
3) The Web Server function provided by BMS(BACnet/IP) and BACnet gateway can be used at
the same time.
3.3.4 Connection between the BACnet Gateway and the Upper Communication
Device
3�3�4�1 Interface Connection
RJ45 Interface Connection with Parallel Line