3Com SuperStack II Manual page 217

The settings on your terminal or terminal emulator are correct:
8 data bits
no parity
1 stop bit
The auto-configuration feature of the Switch only works with line
speeds from 1200 to 19,200 baud.
If you are managing the Switch over the network:
Remote access to the management software of the Switch is
enabled. For more information, see
Remote Access"
The port through which you are trying to manage the Switch
belongs to the Default VLAN (VLAN 1). This is the only VLAN that
can be used to access the management software of the Switch.
If the login sequence still does not display, reset the Switch. For more
information, see "Resetting All the Units in the Stack"
page 151. If this does not work, initialize the Switch. For more
information, see "Initializing All the Units in the Stack"
page 151.
The terminal or terminal emulator can no longer access the Switch
over the network. Check that:
Remote access to the management software of the Switch has not
been disabled. For more information, see
Remote Access" on
The port through which you are trying to access the Switch has not
been disabled. For more information, see
Ports" on page 54, or if it is enabled, check the connections and
network cabling for the port.
The port through which you are trying to manage the Switch has not
been moved from the Default VLAN (VLAN 1). This is the only VLAN
that can be used to access the management software of the Switch.
If there is still a problem, try accessing the stack through a different port.
If you can now access the Switch, a problem may have occurred with the
original port. Contact your supplier for further advice.
Solving Command Line Interface Problems
"Enabling and Disabling
on page 150.
page 150.
"Displaying the Status of the
on page 88
on page 88
"Enabling and Disabling
217
or
or