4548gt-pwr no respond

[avila32]

the Switch does not display anything when I connect via serial

[fwilkepcs]

Did you control serial communication settings on you computer? Have a look at 4500 series quick setup guide.

After connecting you computer to the switch hit STRG+Y

[bkrishnaswam]

It is also worth to check if the Serial console is enabled on the switch. If you are able to Telnet to the switch.

command from the Global configuration mode

#serial-console <unit 1-8> enable

Also check the serial connection settings as suggested by fwilkepcs.

[dmertz]

What kind of terminal emulation software are you using?

- PuTTy?
- Hyperterminal?
- Teraterm?

[zakabog]

Is this during boot up? If the switch is already up just press Ctrl + Y to bring up the CLI.