Note 1: The MDF is used to cross-connect any outside line with any desired terminal of the multiple cabling or any other outside line.
Note 2: The MDF usually holds central office protective devices and functions as a test point[?] between a line and the office.
Note 3: The MDF in a private exchange[?] performs functions similar to those performed by the MDF in a central office. Synonym (in telephony) main frame[?].
Source: from Federal Standard 1037C and from MIL-STD-188
... use the same ruts in the roads). This is known as "standard gauge." For political reasons, some countries chose a broader gauge, and thus Russia and former Soviet Uni ...
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