Ruckus does not like end consumers using its stuff it appears. They have most their documentation locked behind log in.
I would suspect like many commercial AP it is designed to run with some kind of controller. Are you sure that model can even be configured with something like a web browser. I have seen many AP that can only be configured with the controller or if they do have a web interface it is only to set a IP so they can connect to the controller to do the rest of the configuration.
Your best bet is to try to find the instructions that explain how to factory reset the units. I suspect you purchased these used since they are outrageously expensive. They may still have passwords/ configurations from who ever had...