3Com SuperStack II 9300 Command Reference Manual page 97

2 Enter the baud setting for the serial port. The system supports the
following baud rates:
19200
9600
4800
2400
1200
The system response depends on the cable status. If the cable is
connected to the terminal port when you set the baud rate for that port,
the system displays the following message:
Changing the baud rate may cause a loss of communication
since you are currently connected via the serial port.
Are you sure you want to change the baud rate? (y/n):
If you respond
immediately, and you lose the ability to communicate to any devices
connected to it until you adjust the device baud setting to match.
If you respond
returns to the previous menu.
Procedure (IP Interface)
1 From the top level of the Administration Console, enter:
system serialPort baudRate
2 Enter the baud setting for the terminal port.
After you select the new baud, the system displays the following
message:
The baud rate will not change until the system is rebooted.
To have your change take effect without rebooting, perform
this command via the serial port.
Are you sure you want to change the baud rate? (y/n):
If you respond
system.
If you respond
returns to the previous menu.
(yes), the serial port's baud rate is changed
y
(no), the rate does not change, and the display
n
(yes), the rate is not changed until you reboot the
y
(no), the rate does not change, and the display
n
system serialPort baudRate 97