In telecommunications, a distribution frame is a passive device which terminates cables, allowing arbitrary interconnections to be made.
For example, the Main Distribution Frame (MDF) located at a telephone central office terminates the cables leading to subscribers on the one hand, and cables leading to active equipment (such as DSLAMs and telephone switches) on the other. Service is provided to a subscriber by manually wiring a twisted pair (called a jumper wire) between the telephone line and the relevant DSL or POTS line circuit.
In broadcast engineering, a distribution frame is a location within an apparatus room through which all signals (audio, video, or data) pass, with the ability to arbitrarily route and connect sources and destinations between studios and other internal and external points. Connections can either be soldered, or made using terminal blocks. Because the frame may carry live broadcast signals, it may be considered part of the airchain.
In data communication, a building distribution frame (BDF) houses data switches, etc.
Other articles related to "distribution frame, distribution frames":
... Distribution frames may grow to extremely large sizes ... In major installations, audio distribution frames can have as many as 10,000 incoming and outgoing separate copper wires (balanced audio signals require two wires plus earth ground for each signal) ... in the industry to devise so-called active distribution frames or Automated Main Distribution Frames ...
... Telephone exchange Main distribution frame (MDF) a wiring rack that connects outside subscriber lines with internal lines ... Handover distribution frame (HDF) a distribution frame that connects the last mile provider with the service provider's DSLAM DSLAM a device for DSL service ...
... The functionality is similar to one performed by a Main distribution frame or any other distribution frame, so sometimes is referred to as Automated Main ...
... In telecommunication, a combined distribution frame (CDF) is a distribution frame that combines the functions of main and intermediate distribution frames and contains both vertical and ...
Famous quotes containing the words frame and/or distribution:
“We are not permitted to choose the frame of our destiny. But what we put into it is ours.”
—Dag Hammarskjöld (19051961)
“My topic for Army reunions ... this summer: How to prepare for war in time of peace. Not by fortifications, by navies, or by standing armies. But by policies which will add to the happiness and the comfort of all our people and which will tend to the distribution of intelligence [and] wealth equally among all. Our strength is a contented and intelligent community.”
—Rutherford Birchard Hayes (18221893)