main distributing frame

[′mān di′strib·yəd·iŋ ‚frām] (electricity) Frame which terminates the permanent outside lines entering the central office building on one side and the subscriber-line multiple cabling, trunk multiple cabling, and so on, used for associating an outside line with any desired terminal on the other side; it usually carries the control-office protective devices, and functions as a test point between line and office. Also known as main frame.

单词	main distributing frame
释义	main distributing frame main distributing frame [′mān di′strib·yəd·iŋ ‚frām] (electricity) Frame which terminates the permanent outside lines entering the central office building on one side and the subscriber-line multiple cabling, trunk multiple cabling, and so on, used for associating an outside line with any desired terminal on the other side; it usually carries the control-office protective devices, and functions as a test point between line and office. Also known as main frame.
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