Just to remind me..
When I do console the Cisco appliance, at the secure CRT / putty / hyper terminal showed character that can’t understand.
It’s means the baud rate that you set is wrong. Some of the Cisco product use 9600 baud rate, but for “special” appliance, they use 115200 baud rate.
Please change your baud rate into 115200, after you enter the config terminal, you can set the default baud rate for your appliance.
hope this work…