The Leviton Quickport 48 port backplane mounted in a Middle Atlantic Hinged Panel Mount (HPM6):
I like this idea...what did you use for the backplane and how did you secure it to the concrete wall in the basement?
The Middle Atlantic HPM6 is the 'frame' and the Leviton unit..(don't have model number but can probably find it for you if you really need, PM if needed)..
It's mounted on the wood board like the electricians put in for your breaker box. 2x4 on the flat attached to concrete with anchors with double sheet of plywood on top.