I am having issue consoling into Cisco 3560V2 using console cable attached to USB to serial adapter.
when i try to login on the putty i only see black screen.
What could be the problem ?
What settings you got in the 'Serial' section of Putty. That section will allow you to configure necessary settings to connect via console. Check te below link..
Edit: Link added to find where you can edit settings. It may not have exact settings needed.
The problems could be the following
1 the cable is busted
2 the usb/serial converter or its drivers is busted
3 the switch port is busted
4 the pc is busted
5 The settings are wrong on the switch compared to the converter
6 the terminal program is listening on the wrong port
of these i would state that to test out the problems it would be easiest to
connect to a known good device.
if it works there then we know that the pc is ok and the cable is fina and the drivers are ok
that remains then two things
The switch port/switch itself is busted OR the switch is configured to run in a different speed/mode on the serial interface..
common problem I have experienced with USB-serial converters is that they normally require a specific driver to be installed, without the driver you won't get any output from the console.
Other common problem is that the USB-serial converter is faulty, I have gone through several over the years, they just seem to stop working for some reason