Definitions for "Main Distribution Frame"
Keywords:  mdf, jumper, pbx, dslam, terminate
The cut-down frame for the wire leaving the CO to the outside plant.
(MDF) An enclosed 7 foot electronics cabinet with power, shelf and fan ventilation containing the equipment (main router,hubs, patch panels, etc) needed to connect the backbone wiring of a local area network to the high bandwidth lines of a Wide area network.
A steel bar framework that is the major cross connect point for COs and TOCs. Used to interconnect loop cable pairs and line equipment terminals on a switching system. Synonym: Main Frame.