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Main Distribution Frame (MDF) Hardware
October 2002
Main Distribution Frame (MDF)
Hardware
SYSTIMAX 110-type hardware is used for the Main Distribution Frame (MDF). 110-type
hardware is available in two basic types: the 110A and 110P. The 110A requires less wall space
than the 110P. The 110P includes horizontal and vertical cable troughs for managing
cross-connect cables. The S8700 Multi-Connect configuration is connected to the MDF with the
supplied B25A male to female 25-pair cables. The cables are provided in 10-foot (3 m) and
15-foot (4.5 m) lengths.
Refer to DEFINITY Communications System Generic 1 and Generic 3 Main Distribution Field
Design, 555-230-630, for more information.
‘‘Example MDF Connections (Avaya SCC1 Media Gateway)’’ on page 145
shows a detailed
example of the SCC1 media gateway cables connecting media gateways and satellite closets to
the Main Distribution Frame (MDF). The figure shows the cross-connections for one example
station circuit.
‘‘Example MDF Connections (Avaya MCC1 Media Gateway)’’ on page 146
shows the
cross-connections for common circuit packs. Refer to this figure when cross-connecting wire
pairs to the MDF.
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