It's definitely connected to something...

[Donnie lowers his goggles as he looks to the wall.]

Most of these are still online. All connected. Seems there's some kind of scanning equipment installed down the hallway. And then I guess once that triggers...

[He nods at the ends of the restraints lying on the floor (wall? which side is up anymore).]

Doesn't seem like there's any access points here though.