<p>This Architectural Drawing is AutoCAD 2d drawing of Setup box 2d cad blocks in AutoCAD, dwg file. A Set Top Box is a device that <strong>allows users to view video content from specific internet video providers via the internet</strong>. Also known as a Set Top Unit, these boxes convert a digital television signal to analog to be viewed on a conventional television set, or enable cable or satellite television to be viewed.</p>