Asus PCI-DA2200 - Manual (Page 220)

ASUS GUI RAID Manager: Basic Operations at Startup
3-6 3.2 Connecting and Disconnecting from a Disk Array
2. Select RS-232. The Settings of RS-232 Interface dialog box
appears:
3. From the COM Port# drop-down list box, select which
COM port on the local host is connected to the controller via
the RS-232 cable. To select a different COM port, click on
the down-arrow button at the right of the box, then select the
desired option.
4. From the Baud Rate drop-down list box, select the baud rate
setting on the RS-232 port of the controller. To select,
perform the same procedure described in step 3.
You can modify the baud rate on the controller through the
on-board console interface or through the GUI RAID
Manager. For information on the latter, see Chapter 4, Array