Cleveland Steam Oven Network Installation Manual page 28

6. Once the computer recognizes the USB adapter, the dip switches in the adapter
have to be set up for RS485 or RS232 data transfer; chose the correct setting to
match the configuration you are using.
For USB to RS232
Switches 2, 3, 4 are ON
For USB to RS485
Switches 1 and 4 are ON
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