Three main conduit lines can easily be seen underneath the 4" thick main concrete slab and behind the 50" deep isolated concrete pier where the telescope attaches.

The red conduit is power, which runs back to the breaker box. The two green conduits come out about 48" up each outside wall of the control room, directly into computers.
 
 

 

This is an underview showing the power and data conduits as well as the concrete slabs and rail system.