Hmmm, we call a custom made cable/conduit wireway/entry enclosure that goes on top of gear a "Highhat".

[Linked Image]

See if I can get the link to work.
http://pictures.aol.com/galleries/amazingmg/5630wQ7EitNkwdsgNgN51KA4X38c7ECUogiUv4xQp5Fd3Ig=