password fails

Using Brocade switches to a CX500. I need to get into one of our Brocades because we're adding another server. We've had these switches in place since 2002. I had successfully logged in quite some time ago but now I can't log in using the password we normally use. The passwords have never been changed since EMC installed them. I'm sure it's still set to the default user name/password. I have tried a google search and a search on the threads here, but I can't find what those defaults are. Can anybody help? Thanks.