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7
COM1
Gateway address 1-32 can be set to connect VRF models
COM4
Connect to a third-party gateway,
gateway address: 1-128
fire alarm
COM5
ModBUS-RTU centralized
control data interface
COM2
Gateway address 1-32 can be set to connect VRF models
COM3
Gateway address 1-128,
Connect to gateway "40VCAR17FQEE"
COM6
Reserved