Hi, kboot and welcome to MR.
I did see some information in the
Legacy E-book devices forum. You may want to check out the information in the threads there. I also saw that some threads did have REB 1100 information mixed in.
REB User's Guide Version 1 (at the bottom of the page)
from the MR Wiki page on the RED 1100 Plus it also lists the
REB for Dummies
I hope some of this helps you find the information you are seeking.