1
J Michael Jarvis: Distribution frame board. Joseph G Seeber, May 9, 1989: US04829564 (33 worldwide citation)

A main distribution frame (MDF) board for connecting a plurality of stations to a system or switch, or an intermediate distribution frame (IDF) board for connecting an input cable to an output cable, comprises: sets of barrel connectors to which the stations are wired (in the MDF embodiment) or an i ...


2
Nielsen Jens Fogh, Jensen Per: An electrical distributor board. Lk, July 4, 2001: EP1113544-A2

An electrical distributor board for receiving electrical components (6, 7, 8), each of which is provided with electrical coupling means (15), is normally standardized, which, with the present standards, would not leave sufficient space for establishing a main distribution frame comprising signal con ...