My main shelf on a Tellabs T1000(LET-1) won't "see" the 3rd shelf of the system (LET-3).I have changed both ELU & EBC cards multiple times and changed the interconnect fibers between those 2 cards as well to no avail. Both cards show Active & Sync green lights but so do the protect cards as well where 1 of those normally should just be green Sync(the protect card).Is there an option in the provisioning menus to activate the slots they're in? I looked but didn't see, maybe I'm just missing it. Any help is appreciated.