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.
Central point where all local loops terminate in the CO.
A wiring arrangement that connects outside lines on one side and internal lines from exchange equipment on the other.
The cross-connect frame at the C.O. or PBX where all the system pairs are connected.
Aka Distribution Frame. Termination point for all wire, coax, or fiber optic for a network, placed as close to central office or PBX as possible.
The equipment in the CO at which telephone lines from your premises terminate prior to connecting to the switching equipment.
This is the apparatus that exists in the local concentrator (exchange) building and is where the copper cables terminate. Here cross connection to other apparatus can also be made by flexible jumpers.
In Telephony, a Main Distribution Frame (MDF or Main Frame) is a signal distribution frame for connecting equipment (inside plant) to cables and subscriber carrier equipment (outside plant). The MDF is a termination point within the local Telephone exchange where exchange equipment and terminations of local loops are connected by jumper wires at the MDF. All copper pairs supplying services through user telephone lines are terminated at the MDF and distributed through the MDF to equipment within the local Exchange e.g. repeaters and DSLAM.
