3Com SuperStack 3 3CR17561-91 Getting Started Manual - page 63
Manual is about: Switch 4500 Family Switch 4500 26/50-Port Switch 4500 PWR 26/50-Port
of
134
Default Users and Passwords
63
Use the admin default user name (no password) to login and carry out
initial Switch setup.
To set a password for the admin user in the CLI, enter the following from
system view:
[4500]local-user admin
[4500-luser-admin]password simple xxxxxxxx
(where
xxxxxxxx is your chosen password).
Save the configuration in the User View.
For information on the lost password procedure please refer to the
Configuration Guide that is supplied with your Switch.