field, field, field and chang: Switching panel on the old Outside Broadcasting Network.
field, field, field and chang: Step-by-step patch panel
field, field, field and chang: Step-by-step patch panel?
field, field, field and chang: Detail from an old step-by-step equipment rack.
field, field, field and chang: Soldering iron on the MDF.
field, field, field and chang: Weller soldering iron on the MDF.
field, field, field and chang: Old Nokia "high density modems".
field, field, field and chang: Signage on a rack.
field, field, field and chang: "Master Switch Networking Unit"- makes it sound like this is the box that actually runs everything else...
field, field, field and chang: Extended alarm panel