ABB COM600 Station Automation Series User Manual page 25

1MRS756125 COM600 Station Automation Series
COM600 3.2
User's Guide
5. On the SuperIO Device configuration page, go to the COM2 Select parameter
and press ENTER. Now you can choose between RS-232 and RS-485.
6. Press the F10 key to save the changes and exit the BIOS setup.
Pinout of COM2 port when RS-485 mode is used:
DB9 connector:
1. TX-/RX-
2. N/A
3. TX+/RX+
4. N/A
5. GND
6. N/A
7. N/A
8. N/A
9. N/A
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