Gree ME30-24/E6M - The Fourth Switch of Function DIP Switch S3 - Setting of CAN2 Bus; Matched Resistance

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Setting method of address 43 is shown as below:
5.3.3
The Fourth Switch of Function DIP Switch S3 - Setting of
CAN2 Bus Matched Resistance
Notice!
Notice! Master outdoor unit or gateway of the system which is at the end of
CAN2 bus must be set as with the matched resistance, otherwise communication
will be abnormal!
The fourth switch of function DIP switch is used for setting the CAN2 bus
matched resistance of this gateway.
Modbus Gateway(Mini)