is there a trial version of SCI 2.0 that can be downloaded?
Yes, of course! Just go to the Ruckus Support website and download the image. It comes with a pre-loaded 90 days trial license (no AP limits).
i only saw this one which is in TAR format is these the same https://support.ruckuswireless.com/software/1006-sci-2-1-1-ga-software-release. Thank you See