Advantech MIC-3612/3-BE, User Manual

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MIC-3612/3-BE User Manual 8
2.5.2 Default Settings
The board is shipped with default settings (all ports are set to RS-422 mode without
any terminator resistors). If you need to change these settings, however, see the fol-
lowing sections. Otherwise, you can simply install the card.
For MIC-3612, each port can support three operation modes, RS-232, RS-485 and
RS-422.

RS-232 mode
For RS-232 operation mode, set the jumper group CN4(CN5,CN6,CN7) for Port
1 (2,3,4) to the RS-232 available position.

RS-485 mode
For RS-485 operation mode, users will have to use the following list to set the
jumpers.
1. Jumper group CN4(CN5,CN6,CN7) for Port 1 (2,3,4) to the RS-422/485.
2. Jumper JP10(JP11,JP12,JP13)for Port 1(2,3,4) to the RS-485.
3. DIP switch SW1 have to switch to “AUTO” for RS-485 mode
CH1 CH2 CH3 CH4
ON ON ON ON ON
OFF AUTO AUTO AUTO AUTO