The iTach Wi-Fi Connection and Setup Guide covers setup and configuration of the iTach WF2IR gateway, but applies to all Global Caché Wi-Fi models.
The Connection and Setup Guide is currently available two different ways:
1) Downloadable, printable PDF:
iRule Tutorial GC iTach (WF) PDF
2) YouTube video tutorial:
Be sure to switch to 720p and view the video full-screen for best viewing.