LTM's default baud rate is 19200, but it may have been changed on the unit you're working with. Which platform is this on? For a newer 1600, 2600, 3900, 6900, 8900, etc, here are some steps you can try to reset the baud rate to 19,200:
To determine the baud rate of the host management port, log on to the system and run the command b hardware baud rate. To determine baud rate for AOM, at the command line, type ssh aom. At the AOM prompt, type the command bootenv baudrate. To change the baud rate for the host management port, use the LCD menus. To change the baud rate for AOM, run the command bootenv baudrate=19200. (If you are accessing a
system that is already garbled, you can access the AOM menu by pressing Esc+Shift+9.)
Aaron